AU2022210123A1 - Method for producing fuel, device for producing fuel, plant, combustion facility, and fuel - Google Patents
Method for producing fuel, device for producing fuel, plant, combustion facility, and fuel Download PDFInfo
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- AU2022210123A1 AU2022210123A1 AU2022210123A AU2022210123A AU2022210123A1 AU 2022210123 A1 AU2022210123 A1 AU 2022210123A1 AU 2022210123 A AU2022210123 A AU 2022210123A AU 2022210123 A AU2022210123 A AU 2022210123A AU 2022210123 A1 AU2022210123 A1 AU 2022210123A1
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- fuel
- raw material
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- producing
- washing
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Links
- 239000000446 fuel Substances 0.000 title claims abstract description 207
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 238000002485 combustion reaction Methods 0.000 title claims description 57
- 238000005520 cutting process Methods 0.000 claims abstract description 96
- 238000005406 washing Methods 0.000 claims abstract description 80
- 238000000748 compression moulding Methods 0.000 claims abstract description 56
- 239000002028 Biomass Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims description 158
- 238000000034 method Methods 0.000 claims description 52
- 230000032258 transport Effects 0.000 claims description 52
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 30
- 239000000460 chlorine Substances 0.000 claims description 30
- 229910052801 chlorine Inorganic materials 0.000 claims description 30
- 230000005484 gravity Effects 0.000 claims description 14
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 12
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 12
- 239000011591 potassium Substances 0.000 claims description 12
- 229910052700 potassium Inorganic materials 0.000 claims description 12
- 239000011734 sodium Substances 0.000 claims description 12
- 229910052708 sodium Inorganic materials 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 11
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000007858 starting material Substances 0.000 abstract 3
- 239000000463 material Substances 0.000 description 19
- 239000000567 combustion gas Substances 0.000 description 11
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 239000000843 powder Substances 0.000 description 9
- 239000007787 solid Substances 0.000 description 9
- 241000196324 Embryophyta Species 0.000 description 8
- 239000004449 solid propellant Substances 0.000 description 8
- 239000002956 ash Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 238000010298 pulverizing process Methods 0.000 description 6
- 240000006394 Sorghum bicolor Species 0.000 description 5
- 235000011684 Sorghum saccharatum Nutrition 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 240000003133 Elaeis guineensis Species 0.000 description 2
- 235000001950 Elaeis guineensis Nutrition 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000010882 bottom ash Substances 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 244000130556 Pennisetum purpureum Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
This method for producing fuel is provided with: a cutting step for cutting a biomass starting material; a washing step for washing the cut starting material using water; and a compression molding step for molding fuel by compressing the starting material to which the washing water has adhered and which has a size of 10-50 mm. The compression molding step is performed under a pressure of 200 to 350 MPa.
Description
Title of Invention
Technical Field
[0001]
The present invention relates to a method for
producing fuel, a device for producing fuel, a plant, a
combustion facility, and fuel.
Background Art
[0002]
Fuel such as PKS, wood-based chips, and wood-based
pellets is produced from a biomass raw material such as
sorghum or oil palm empty fruit bunches.
[0003]
In the production of the fuel as described above, in
general, a process of finely pulverizing a raw material, a
process of washing the raw material, a process of drying
the raw material, and a process of compression molding the
raw material into fuel are performed in this order. More
specifically, in the pulverization process, the raw
material is made into fine powder, and thereafter, in the washing process, the powder is washed with water, in the drying process, the powder raw material is dried, and then in the compression molding process, the powder raw material is compressed to mold solid fuel (refer to PTL 1, for example). In the washing process, a chlorine component and an alkaline component contained in the raw material, which cause corrosion or combustion inhibition of a boiler in which the fuel is used, are removed.
Citation List
Patent Literature
[0004]
[PTL 1] Japanese Unexamined Patent Publication No.
2019-147961
Summary of Invention
Technical Problem
[0005]
However, in the method for producing fuel as described
above, a large amount of energy is consumed in the
pulverization process, the drying process, and the like,
resulting in a large amount of energy consumption as a
whole. Further, the chlorine component and the alkaline
component is not sufficiently removed from the raw material
in the washing process.
[0006]
The present invention has been made in view of such
points, and has an object to provide a method for producing
fuel and a device for producing fuel, in which it is
possible to sufficiently remove a chlorine component and an
alkaline component in a raw material while reducing energy
consumption.
Solution to Problem
[0007]
A method for producing fuel according to an aspect of
the present invention includes a cutting process of cutting
a biomass raw material, a washing process of washing the
cut raw material with water, and a compression molding
process of molding fuel by compressing the raw material to
which the washing water has adhered and which has a size of
mm or larger and 50 mm or smaller.
[00081
According to this aspect, in the compression molding
process, by molding fuel by compressing the raw material to
which the washing water has adhered and which has a size of
mm or larger and 50 mm or smaller, it is possible to
sufficiently remove a chlorine component and an alkaline
component in the raw material while reducing energy
consumption.
[0009]
In the above aspect, the compression molding process
may be performed at pressure of 200 MPa or higher and 350
MPa or lower.
[0010]
In the above aspect, the fuel may be compression
molded such that bulk specific gravity is 0.35 or more and
0.65 or less.
[0011]
In the above aspect, a moisture content of the fuel
may be 10% or more and 50% or less with respect to the raw
material before cutting.
[0012]
In the above aspect, a chlorine component of the fuel
may be 30% or less with respect to the raw material before
cutting, a potassium component of the fuel may be 50% or
less with respect to the raw material before cutting, and a
sodium component of the fuel may be 80% or less with
respect to the raw material before cutting.
[0013]
A device for producing fuel according to an aspect of
the present invention includes a cutting device that cuts a
biomass raw material, a washing device that washes the cut
raw material with water, and a compression molding device
that molds fuel by compressing the raw material to which the washing water has adhered and which has a size of 10 mm or larger and 50 mm or smaller.
[0014]
In the above aspect, the device for producing fuel may
further include a first transport unit that transports the
raw material cut by the cutting device to the washing
device, and a second transport unit that transports the raw
material washed with water by the washing device to the
compression molding device.
[0015]
In the above aspect, the compression molding of the
fuel in the compression molding device may be performed at
pressure of 200 MPa or higher and 350 MPa or lower.
[0016]
In the compression molding device of the above aspect,
the fuel may be compression-molded such that bulk specific
gravity is 0.35 or more and 0.65 or less.
[0017]
In the above aspect, a moisture content of the fuel
may be 10% or more and 50% or less with respect to the raw
material before cutting.
[0018]
In the above aspect, a chlorine component of the fuel
may be 30% or less with respect to the raw material before
cutting, a potassium component of the fuel may be 50% or less with respect to the raw material before cutting, and a sodium component of the fuel may be 80% or less with respect to the raw material before cutting.
[0019]
A plant according to an aspect of the present
invention includes the above device for producing fuel, and
a combustion facility that burns the fuel produced by the
device for producing fuel.
[0020]
A combustion facility according to an aspect of the
present invention is a combustion facility that burns the
fuel produced by the above device for producing fuel.
[0021]
Fuel according to an aspect of the present invention
is made of a biomass raw material having a size of 10 mm or
larger and 50 mm or smaller, and has bulk specific gravity
of 0.35 or more and 0.65 or less.
[0022]
A combustion facility according to an aspect of the
present invention is a combustion facility that burns fuel
made of a biomass raw material having a size of 10 mm or
larger and 50 mm or smaller, and having bulk specific
gravity of 0.35 or more and 0.65 or less.
[0023]
A method for adjusting a combustion facility according
to an aspect of the present invention, in which fuel is
made of a biomass raw material having a size of 10 mm or
larger and 50 mm or smaller and has bulk specific gravity
of 0.35 or more and 0.65 or less, the method including: a
process of adjusting various parameters related to
combustion of the fuel.
[0024]
In the above aspect, the various parameters may
include at least any of a fuel supply amount, a combustion
temperature, a supply amount of oxygen necessary for
combustion, an additive supply amount, and various
parameters for treatment of an exhaust gas and ash which
are generated by combustion.
Advantageous Effects of Invention
[0025]
According to the present invention, in the production
of fuel, it is possible to sufficiently remove the chlorine
component and the alkaline component in the raw material
while reducing energy consumption.
Brief Description of Drawings
[0026]
Fig. 1 is a schematic diagram showing an outline of a
configuration of a device for producing fuel in a first
embodiment.
Fig. 2 is a flow chart showing a main process of a
method for producing fuel in the first embodiment.
Fig. 3 is a schematic diagram showing an outline of a
configuration of a device for producing fuel in a second
embodiment.
Fig. 4 is a flow chart showing a main process of a
method for producing fuel in the second embodiment.
Fig. 5 is a schematic diagram showing another
configuration example of the device for producing fuel.
Fig. 6 is a schematic diagram showing another
configuration example of the device for producing fuel.
Fig. 7 is a schematic diagram showing another
configuration example of the device for producing fuel.
Fig. 8 is a schematic diagram showing an example of a
plant provided with a device for producing fuel and a
combustion facility.
Fig. 9 is a schematic diagram showing an example of a
fuel facility having an adjusting unit for various
parameters.
Fig. 10 is a graph showing results of verifying the
rates of increase or decrease in a chlorine component and an alkaline component of the fuel produced by a method for producing fuel and a device for producing fuel.
Fig. 11 is a graph showing the ratio of fuel intensity
to target intensity in a case where a compression molding
process is performed at each compression pressure.
Description of Embodiments
[0027]
Hereinafter, preferred embodiments of the present
invention will be described with reference to the drawings.
[0028]
<First Embodiment>
Fig. 1 is a schematic diagram showing an example of a
configuration of a device for producing fuel 1 according to
the present embodiment. In the device for producing fuel 1
of the present embodiment, for example, a biomass raw
material cutting process, a washing process, and a
compression molding process are performed in succession in
this order to produce solid fuel.
[0029]
In the present specification, the biomass raw material
(also simply referred to as a "raw material") includes a
wood-based biomass raw material that includes a plant such
as sorghum, napier grass, or oil palm empty fruit bunches,
and a waste-based biomass raw material that includes waste such as garbage. Further, a material before cutting, after cutting, or after washing is referred to as a raw material, and a material after compression molding is referred to as fuel.
[00301
For example, the device for producing fuel 1 includes
a cutting device 10 that cuts a biomass raw material to a
size larger than powder, a washing device 11 that washes
the cut raw material with water, a compression molding
device 12 that molds fuel by compressing the raw material
to which the washing water has adhered, a first transport
unit 13 that transports the raw material cut by the cutting
device 10 to the washing device 11, and a second transport
unit 14 that transports the raw material washed by the
washing device 11 to the compression molding device 12.
[0031]
The cutting device 10 is for roughly cutting the
biomass raw material to a size of 10 mm or larger and 50 mm
or smaller. For example, a crusher having a single-stage
cutter may be used for the cutting device 10. For example,
the cutting device 10 includes a hopper 20 having a
substantially cylindrical shape or a substantially square
tube shape whose center axis is directed in an up-down
direction, an input part 21 which is provided at an upper
portion of the hopper 20 and into which a raw material Is input, a discharge part 22 provided at a lower portion of the hopper 20 to discharge the raw material, and a single stage cutter 23 provided between the input part 21 and the discharge part 22 to cut the raw material. The cutting device 10 can cut the biomass raw material input from the input part 21 of the hopper 20 to a size of 10 mm or larger and 50 mm or smaller by the single-stage cutter 23 and discharge the cut raw material from the discharge part 22.
In the present specification, the word "top" is a top in
the up-down direction, and "bottom" is a bottom in the up
down direction. Further, the size of the raw material
refers to the dimension of the longest portion of the raw
material.
[0032]
The washing device 11 is for washing the raw material
with water. For example, the washing device 11 includes a
washing tank 30 having an opening at an upper portion
thereof, a stirrer 31 that stirs the raw material in the
washing tank 30, a water supply part and a water discharge
part (not shown) for the washing tank 30, and the like. The
washing device 11 can wash the raw material input into the
washing tank 30 with water stored therein with the water
while stirring the raw material with the stirrer 31.
[0033]
The compression molding device 12 is for molding solid
fuel by compressing a raw material having a size larger
than that of powder in a state where water has adhered
thereto. For example, a so-called briquette machine may be
used for the compression molding device 12. For example,
the compression molding device 12 includes a casing 40
having a substantially cylindrical shape or a substantially
square tube shape whose center axis is directed in the up
down direction, an input part 41 which is provided at an
upper portion of the casing 40 and into which the raw
material is input, a pusher 42 provided at the casing 40 to
push the raw material, a compressor 43 provided at the
lower portion of the casing 40 to mold solid fuel by
compressing the pushed raw material, a heating unit 44 that
heats the molded fuel, a discharge part 45 that discharges
the fuel, and the like.
[0034]
The input part 41 is configured to be open such that
the raw material larger in size than powder can be input.
The compressor 43 is configured such that the pressure for
compressing the raw material can be adjusted, and can
compress the raw material in the range of 200 MPa or more
and 350 MPa or less, for example. Further, the compressor
43 can mold the raw material into solid fuel with a size of
mm or smaller.
[0035]
For example, the compression molding device 12 has a
transport path 46 that transports the fuel compressed by
the compressor 43 to the discharge part 45. The transport
path 46 is made to gradually rise as it approaches the
discharge part 45. The heating unit 44 is provided in the
vicinity of the discharge part 45 in the transport path 46.
The waste water generated in the compressor 43 can be
prevented from flowing to the heating unit 44 or the
discharge part 45.
[00361
The compression molding device 12 can compression-mold
the raw material with the compressor 43 while pushing the
raw material input from the input part 41 of the casing 40
with the pusher 42, heat and dry the molded raw material
with the heating unit 44, and then discharge it from the
discharge part 45. The discharge part 45 is connected to,
for example, a fuel storage facility.
[0037]
The first transport unit 13 is, for example, a belt
conveyor that transports the raw material cut by the
cutting device 10 to the washing device 11. For example,
the first transport unit 13 is provided to extend from the
discharge part 22 of the cutting device 10 to above the
washing tank 30 of the washing device 11. The first transport unit 13 can transport the raw material carried out from the discharge part 22 of the cutting device 10 to above the washing tank 30 and drop it into the washing tank
30.
[00381
The second transport unit 14 is, for example, a screw
conveyer that transports the raw material washed by the
washing device 11 to the compression molding device 12. The
second transport unit 14 is provided to extend from the
washing tank 30 of the washing device 11 to above the input
part 41 of the compression molding device 12. The second
transport unit 14 can transport the raw material washed in
the washing tank 30 of the washing device 11 to above the
input part 41 of the compression molding device 12 and drop
it into the casing 40.
[00391
Next, a method for producing fuel that is performed in
the device for producing fuel 1 configured as described
above will be described. Fig. 2 is a flow chart showing an
example of a main process of the method for producing fuel.
[0040]
First, a biomass raw material such as sorghum is cut
(process Sl). The biomass raw material is input from the
input part 21 of the cutting device 10 in an unprocessed
state and roughly cut by the single-stage cutter 23. The raw material is cut to a size of 10 mm or larger and 50 mm or smaller, and preferably 10 mm or larger and 30 mm or smaller.
[0041]
The raw material cut by the cutting device 10 is
discharged from the discharge part 22 and transported to
the washing device 11 by the first transport unit 13. The
raw material is washed with water in the washing device 11
(process S2). The raw material is input into the washing
tank 30 with water stored therein of the washing device 11,
and washed while being stirred by the stirrer 31.
[0042]
The raw material washed by the washing device 11 is
transported to the compression molding device 12 by the
second transport unit 14 in a state where water has adhered
thereto. In the compression molding device 12, the raw
material which has a size of 10 mm or larger and 50 mm or
smaller, and to which water has adhered, is compression
molded (process S3). The raw material is input into the
input part 41 of the compression molding device 12, pushed
by the pusher 42, and compressed by the compressor 43 to be
molded into solid fuel. At this time, the raw material is
compressed, for example, at pressure in the range from 200
MPa to 350 MPa, and more preferably in the range of 230 MPa
to 300 MPa, to be molded into solid fuel with a size of 50 mm or smaller. The shape of the fuel is not particularly limited and may be, for example, a cylindrical shape, a cuboid shape, a spherical shape, or the like.
[0043]
As a result, the fuel has bulk specific gravity of
0.35 or more and 0.65 or less. The moisture content of the
fuel is 10% or more and 50% or less with respect to the raw
material before the cutting process Sl. Further, the
chlorine component of the fuel is 30% or less with respect
to the raw material before the cutting process Sl, the
potassium component of the fuel is 50% or less with respect
to the raw material before the cutting process Sl, and the
sodium component of the fuel is 80% or less with respect to
the raw material before the cutting process S1.
[0044]
Thereafter, the fuel is heated by the heating unit 44,
discharged from the discharge part 45, and transported to
the fuel storage facility.
[0045]
According to the present embodiment, since the
production of fuel includes the cutting process S1 of
cutting the biomass raw material, the washing process S2 of
washing the cut raw material with water, and the
compression molding process S3 of molding fuel by
compressing the raw material which has a size of 10 mm or larger and 50 mm or smaller and to which washing water has adhered, there is no pulverization process or drying process as in the related art, so that the overall energy consumption in the fuel production process can be reduced and the production cost can be reduced. Further, in the compression molding process S3, the raw material with water adhered thereto and having a size of 10 mm or larger and 50 mm or smaller, which is larger than the powder in the related art, is compressed, so that the chlorine component and the alkaline component can be sufficiently removed along with the water from the raw material.
[0046]
If the raw material is pulverized to a size of less
than 10 mm, the pulverization process consumes energy.
Further, if the raw material is pulverized to a size of
less than 10 mm, the raw material does not sink properly
during washing, it may be difficult to collect the stirred
material, and dust countermeasures are required at a
cutting outlet or at the time of transportation, which is
not preferable. If the raw material is cut to a size of 50
mm or larger, a finally produced fuel piece becomes large,
so that it cannot be used as fuel in some cases.
[0047]
Since the compression molding process S3 is performed
at pressure of 200 MPa or higher and 350 MPa or lower,
appropriate fuel intensity can be obtained.
[0048]
Since the fuel is compression-molded such that the
bulk specific gravity is 0.35 or more and 0.65 or less, the
transportation amount per unit volume is increased, and the
transportation cost including import from overseas and
export to overseas can be reduced.
[0049]
Since the moisture content of the fuel is 10% or more
and 50% or less with respect to the raw material before
cutting, the fuel becomes fuel whose lower heating value
per unit weight is high, and the amount of heat during use
of the fuel can be increased. As a result, fuel consumption
in a boiler can be reduced. Further, since the density of
the fuel is increased, the transportation cost can be
reduced.
[0050]
The chlorine component of the fuel is 30% or less with
respect to the raw material before cutting, the potassium
component, which is one of the alkaline components of the
fuel, is 50% or less with respect to the raw material
before cutting, and the sodium component, which is one of
the alkaline components of the fuel, is 80% or less with respect to the raw material before cutting. As a result, the chlorine component and alkaline component of the fuel can be sufficiently reduced.
[0051]
According to the present embodiment, since the fuel
which is made of the biomass raw material having a size of
mm or larger and 50 mm or smaller and has bulk specific
gravity of 0.35 or more and 0.65 or less is produced, it is
possible to realize fuel suitable for transportation.
[0052]
<Second Embodiment>
The embodiment described above has three processes
that include the cutting process, the washing process, and
the compression molding process. However, the present
invention may include a method in which a cutting process
and a washing process are performed, a cutting process is
performed again, and then a compression molding process is
performed. Hereinafter, an example of such a case will be
described as a second embodiment. Fig. 3 is a schematic
diagram showing an example of the configuration of the
device for producing fuel 1 in the second embodiment.
Unless otherwise specified, the configuration of the device
for producing fuel 1 in the present embodiment is the same
as that in the first embodiment, and common configurations are denoted by the same reference numerals and description thereof is omitted.
[00531
The device for producing fuel 1 performs, for example,
a biomass raw material cutting process, a washing process,
a cutting process, and a compression molding process in
succession in this order to produce solid fuel.
[0054]
The device for producing fuel 1 includes, in addition
to the cutting device 10, the washing device 11, the
compression molding device 12, and the first transport unit
13, a cutting device 60 provided between the washing device
11 and the compression molding device 12, a second
transport unit 61 that transports the raw material washed
by the washing device 11 to the cutting device 60, and a
third transport unit 62 that transports the raw material
cut by the cutting device 60 to the compression molding
device 12.
[00551
The cutting device 60 has the same configuration as
the cutting device 10 described above. That is, the cutting
device 60 is for roughly cutting the water-washed raw
material to a size of 10 mm or larger and 50 mm or smaller.
For example, a crusher having a single-stage cutter may be
used for the cutting device 60. For example, the cutting device 60 includes a hopper 70 having a substantially cylindrical shape or a substantially square tube shape whose center axis is directed in the up-down direction, an input part 71 which is provided at an upper portion of the hopper 70, and into which the raw material is input, a discharge part 72 provided at a lower portion of the hopper to discharge the raw material, and a single-stage cutter
73 provided between the input part 71 and the discharge
part 72 to cut the raw material. The cutting device 60 can
cut the raw material input from the input part 71 of the
hopper 70 to a size of 10 mm or larger and 50 mm or smaller
by the single-stage cutter 73 and discharge the cut raw
material from the discharge part 72. The raw material may
be cut to a size of 10 mm or larger and 50 mm or smaller in
the cutting device 60, and in the cutting device 10, the
raw material is cut to a size larger than the above size.
[00561
The second transport unit 61 is, for example, a screw
conveyer that transports the raw material washed by the
washing device 11 to the cutting device 60. The second
transport unit 61 is provided to extend from the washing
tank 30 of the washing device 11 to above the input part 71
of the cutting device 60. The second transport unit 61 can
transport the raw material washed in the washing tank 30 of the washing device 11 to above the input part 71 of the cutting device 60 and drop it into the hopper 70.
[0057]
The third transport unit 62 is, for example, a belt
conveyor that transports the raw material cut by the
cutting device 60 to the compression molding device 12. For
example, the third transport unit 62 is provided to extend
from the discharge part 72 of the cutting device 60 to
above the input part 41 of the compression molding device
12. The third transport unit 62 can transport the raw
material carried out from the discharge part 72 of the
cutting device 60 to above the input part 41 of the
compression molding device 12 and drop it into the casing
40.
[0058]
Next, a method for producing fuel that is performed in
the device for producing fuel 1 configured as described
above will be described. Fig. 4 is a flow chart showing an
example of the main process of the method for producing
fuel.
[0059]
First, a biomass raw material such as sorghum is cut
(process Sl). The biomass raw material is input from the
input part 21 of the cutting device 10 in an unprocessed
state and roughly cut by the single-stage cutter 23. The raw material is cut to a size of 50 mm or larger and 500 mm or smaller, for example.
[00601
The raw material cut by the cutting device 10 is
discharged from the discharge part 22 and transported to
the washing device 11 by the first transport unit 13. The
raw material is washed with water in the washing device 11
(process S2). The raw material is input into the washing
tank 30 with water stored therein of the washing device 11,
and washed while being stirred by the stirrer 31.
[0061]
The raw material washed by the washing device 11 is
transported to the cutting device 60 by the second
transport unit 61 in a state where water has adhered to the
raw material. In the cutting device 60, the raw material is
cut again (process S3). The raw material is input into the
input part 71 of the cutting device 60 and roughly cut by
the single-stage cutter 73. The raw material is cut to a
size of 10 mm or larger and 50 mm or smaller, and
preferably 10 mm or larger and 30 mm or smaller.
[0062]
The raw material cut by the cutting device 60 is
transported to the compression molding device 12 by the
third transport unit 62. In the compression molding device
12, the raw material which has a size of 10 mm or larger and 50 mm or smaller, and to which water has adhered, is compression-molded (process S4). The raw material is input into the input part 41 of the compression molding device
12, pushed by the pusher 42, and compressed by the
compressor 43 to be molded into solid fuel. At this time,
the raw material is compressed, for example, at pressure in
the range from 200 MPa to 350 MPa, and more preferably in
the range of 230 MPa to 300 MPa, to be molded into solid
fuel with a size of 50 mm or smaller.
[00631
As a result, the fuel has bulk specific gravity of
0.35 or more and 0.65 or less. The moisture content of the
fuel is 10% or more and 50% or less with respect to the raw
material before the cutting process Sl. Further, the
chlorine component of the fuel is 30% or less with respect
to the raw material before the cutting process Sl, the
potassium component of the fuel is 50% or less with respect
to the raw material before the cutting process Sl, and the
sodium component of the fuel is 80% or less with respect to
the raw material before the cutting process S1.
[0064]
Thereafter, the fuel is heated by the heating unit 44,
discharged from the discharge part 45, and transported to
the fuel storage facility.
[00651
According to the present embodiment, since the
production of fuel includes the compression molding process
S4 of molding fuel by compressing the raw material which
has a size of 10 mm or larger and 50 mm or smaller and to
which washing water has adhered, there is no pulverization
process or drying process as in the related art, so that
the overall energy consumption in the fuel production
process can be reduced and the production cost can be
reduced. Further, in the compression molding process S4,
the raw material with water adhered thereto and having a
size of 10 mm or larger and 50 mm or smaller, which is
larger than the powder in the related art, is compressed,
so that the chlorine component and the alkaline component
can be sufficiently removed along with the water from the
raw material.
[00661
The device for producing fuel 1 in the first and
second embodiments described above may have other
configurations. For example, the configurations of the
cutting device 10, the washing device 11, the compression
molding device 12, the first transport unit 13, the second
transport units 14 and 61, the cutting device 60, the third
transport unit 62, and the like are not limited to those in
the embodiments described above, and other configurations
may be used.
[0067]
For example, as shown in Fig. 5, the cutting device 10
may be configured such that the hopper 20 having a
substantially cylindrical shape or a substantially square
tube shape is disposed with the center axis thereof
directed in the horizontal direction and the raw material
is input in the horizontal direction from the input part
21. Further, in this case, as shown in Fig. 6, the device
for producing fuel 1 may be configured such that the raw
material is directly input from the cutting device 10 to
the washing device 11 without the first transport unit 13.
[0068]
Further, as shown in Fig. 7, the cutting device 10 and
the washing device 11 may be integrated. In this case, the
cutter 23 of the cutting device 10 may be provided inside
the casing of the washing device 11. In this case, the raw
material input into the casing of the washing device 11 is
cut by the cutter 23 of the cutting device 10 and then
washed in the washing tank 30 of the washing device 11.
[00691
The device for producing fuel 1 described in the above
embodiments can be used as a facility of a plant. For
example, as shown in Fig. 8, a plant 100 includes the
device for producing fuel 1, and a combustion facility 101 that burns the fuel produced by the device for producing fuel 1.
[0070]
The combustion facility 101 includes a combustion
furnace 120 that is supplied with, for example, biomass
fuel as fuel derived from a biomass raw material and burns
the biomass fuel in the furnace, a cyclone 130 that
separates solid contents from a combustion gas generated by
burning the biomass fuel, a measurement unit 140 that
measures each component in the combustion gas, and a
superheater 150 that is superheated by heat exchange with
the combustion gas.
[0071]
The combustion furnace 120 is, for example, a
circulating fluidized bed boiler (CFB). The combustion
furnace 120 is provided with a fuel feeder 122 that
supplies the biomass fuel from the device for producing
fuel 1 into the furnace.
[0072]
The combustion furnace 120 is configured in a
vertically long tubular shape, and burns the biomass fuel
that is supplied from the fuel feeder 122 in the furnace.
The combustion furnace 120 is a fluidized bed furnace that
burns the biomass fuel while making it flow in a fluidized
bed. Further, the combustion furnace 120 is a circulating fluidized bed furnace to which solid contents each having a particle size equal to or larger than a predetermined particle size are returned by the cyclone 130. The temperature inside the combustion furnace 120 is not particularly limited. However, the temperature can be set such that the temperature of the combustion gas becomes a temperature in a range of about 800 to 10000C.
[0073]
When the biomass fuel supplied from the fuel feeder
122 to the combustion furnace 120 is burned, a combustion
gas is produced. Further, although not shown in the
drawings, a water pipe can be installed on the furnace wall
of the combustion furnace 120, and saturated vapor can be
produced by exposing the water pipe to the combustion gas
in the combustion furnace 120.
[0074]
The cyclone 130 is a solid-gas separation device that
separates the solid contents each having a particle size
equal to or larger than a predetermined particle size,
which are discharged from the combustion furnace 120, from
the combustion gas, and returns them to the combustion
furnace 120. The cyclone 130 can separate the solid
contents each having a particle size equal to or larger
than a predetermined particle size from the combustion gas
and return the solid contents to the inside of the combustion furnace 120, and can send the combustion gas from which the solid contents have been separated to the measurement unit 140. The sorting particle size of the solid content by the cyclone 130 is not particularly limited. However, it can be set to, for example, about 20 pm. In the measurement unit 140, the concentrations of the components in the combustion gas can be measured.
[0075]
The superheater 150 has a pipe (not shown) through
which the saturated vapor generated by the heat of the
combustion furnace 120 flows, and can superheat the
saturated vapor by heat exchange between the combustion gas
and the superheater 150. The combustion gas discharged from
the superheater 150 is sent to each facility (a downstream
side device) installed downstream of the superheater 150.
Further, the saturated vapor superheated by the superheater
150 is used, for example, to drive a power generation
turbine.
[0076]
The combustion facility 101 described above is an
example and is not limited thereto. Further, the combustion
facility 101 does not need to necessarily configure the
plant 100 that includes the device for producing fuel 1,
and may be a separate facility provided to burn the fuel
produced by the device for producing fuel 1.
[0077]
In the combustion facility 101 described above,
various parameters for burning the biomass fuel as fuel
derived from a biomass raw material may be adjusted. The
biomass fuel is made of a biomass raw material having a
size of 10 mm or larger and 50 mm or smaller, and has bulk
specific gravity of 0.35 or more and 0.65 or less. The
various parameters include at least any of a biomass fuel
supply amount (biomass fuel supply rate), a combustion
temperature, a supply amount of oxygen necessary for
combustion, an additive supply amount, and various
parameters for treatment of an exhaust gas and ash which
are generated by combustion.
[0078]
For example, as shown in Fig. 9, the combustion
facility 101 has an adjusting unit 160 that adjusts various
parameters. For example, the adjusting unit 160 includes an
instrument such as a valve for adjusting various
parameters, and software or hardware for operating the
instrument. For example, the user inputs information
necessary for adjusting various parameters to the adjusting
unit 160, and the adjusting unit 160 adjusts the various
parameters, based on the input information.
[0079]
For example, the supply amount of the biomass fuel
(the supply rate of the biomass fuel) from the fuel feeder
122 to the combustion furnace 120 is adjusted between 0 and
the amount of fuel (ton/h or m 3 /h) that satisfies the
required amount of heat, the combustion temperature in the
combustion furnace 120 is adjusted between room temperature
and the required temperature (0C), the supply amount of
oxygen necessary for combustion with respect to the
combustion furnace 120 is adjusted to the air amount
corresponding to an excess air ratio (air ratio), and the
supply amount of an additive such as ammonia (or urea) for
denitrification, limestone (or slaked lime) for
desulfurization, or sand (fluid medium), for example, is
adjusted to an appropriate amount. Further, the flow rate,
temperature, and pressure of the exhaust gas as various
parameters for treatment of the exhaust gas and ash that
are generated by combustion are adjusted to appropriate
amounts in the design range. Various parameters are not
limited to those listed above.
[00801
The treatment of the exhaust gas that is generated by
combustion is performed such that mainly NOx, SOx, and
dust, which are regulated by the Air Pollution Control Law,
are equal to or lower than the regulation values. For
example, as to NOx, a denitrification method by two-stage combustion and a chemical or a catalyst is used. Ammonia or urea is used as the chemical at this time. Further, as to
SOx, a desulfurization method by a chemical is used. As the
chemical at this time, in the in-furnace desulfurization,
limestone is used, and in the flue-blown desulfurization,
slaked lime is used. Dust is captured by a bag filter. The
exhaust gas in which soot has been treated is discharged
outside the system (atmosphere) at a flow velocity of about
m/s (at actual temperature) through a chimney. As the
ash, there are BA (bottom ash) and FA (fly ash), each of
which is stored in a storage tank and discharged outside
the system by a vehicle or a ship at a certain time. The
ash is effectively used outside the system or is subjected
to waste treatment (in a final disposal site). Various
parameters for treatment of the exhaust gas and ash
generated by combustion, which are adjusted by the
adjusting unit 160, include parameters for appropriately
performing treatment of the exhaust gas or discharge of the
ash.
Examples
[0081]
An experiment was performed to verify the rates of
increase or decrease in the chlorine component and alkaline
component of the fuel produced by the method for producing fuel and the device for producing fuel according to the present invention.
[0082]
(Example 1)
The components of the raw material before cutting,
which is sorghum, were analyzed, and the amount of chlorine
component and the amount of alkaline component were
measured. Further, the same raw material was cut to a size
of about 30 mm, washed with water, and then compression
molded into fuel in a state where water was adhered to the
raw material. At this time, the raw material was compressed
at pressure of 300 MPa to mold a columnar fuel having an
axial dimension of about 50 mm. Then, the components of the
fuel were analyzed, and the amount of chlorine component
and the amount of alkaline component were measured. The
component analysis was performed using an ion chromatograph
(manufactured by Thermo Fisher Scientific) for the chlorine
component and using an atomic absorption spectrophotometer
(manufactured by Shimadzu Corporation) for the alkaline
component.
[0083]
The rate of increase or decrease in the chlorine
component of the fuel with respect to the raw material
((the amount of chlorine component of fuel)/(the amount of
chlorine component of raw material) x 100%) and the rate of increase or decrease in the alkaline component (a sodium component and a potassium component)((the amount of alkaline component of fuel)/(the amount of alkaline component of raw material) x 100%) were calculated from the amount of the chlorine component and the amount of the alkaline component of the raw material before cutting and the amount of the chlorine component and the amount of the alkaline component of the fuel after compression molding.
The rate of increase or decrease in the chlorine component
was 14%, and the rate of increase or decrease in the sodium
component was 77%, and the rate of increase or decrease in
the potassium component was 39%.
[0084]
(Comparative Example 1)
After the raw material was washed, it was dried to a
moisture content of 40%, and then the raw material was
compression-molded into fuel. Other matters are the same as
those in Example 1. The rate of increase or decrease in the
chlorine component was 89%, and the rate of increase or
decrease in the sodium component was 140%, and the rate of
increase or decrease in the potassium component was 118%.
[0085]
(Comparative Example 2)
After the raw material was washed, it was dried to a
moisture content of 10%, and then the raw material was compression-molded into fuel. Other matters are the same as those in Example 1. The rate of increase or decrease in the chlorine component was 117%, and the rate of increase or decrease in the sodium component was 160%, and the rate of increase or decrease in the potassium component was 118%.
[00861
Fig. 10 is a graph showing the rates of increase or
decrease in chlorine, sodium, and potassium components in
Example 1, Comparative Example 1, and Comparative Example
2.
[0087]
Next, an experiment was performed to verify the
optimum pressure in the compression molding process for
obtaining the appropriate intensity of the fuel.
[00881
The compression molding process was performed by
changing the compression pressure with respect to the raw
material to 0 MPa, 150 MPa, and 300 MPa, and the intensity
of the fuel in each case was measured. With respect to the
intensity of the fuel, force was applied to a columnar fuel
after compression from an axial direction and a lateral
direction, and force at the point in time when the fuel
collapsed was measured and determined as the intensity of
the fuel. Fig. 11 shows the ratio of intensity of the fuel
at each compression pressure in a case where the optimum intensity of the fuel is set to 100%. In a case where the compression pressure was 150 MPa, the intensity of the fuel was 50% of the optimum intensity, and in a case where the compression pressure was 300 MPa, the intensity of the fuel was 140% of the optimum intensity.
Industrial Applicability
[00891
The present invention is useful in providing a method
for producing fuel and a device for producing fuel, in
which it is possible to sufficiently remove a chlorine
component and an alkaline component in a raw material while
reducing energy consumption.
Reference Signs List
[00901
1 Device for producing fuel
10 Cutting device
11 Washing device
12 Compression molding device
13 First transport unit
14 Second transport unit
Claims (17)
1. A method for producing fuel comprising:
a cutting process of cutting a biomass raw material;
a washing process of washing the cut raw material with
water; and
a compression molding process of molding fuel by
compressing the raw material to which the washing water has
adhered and which has a size of 10 mm or larger and 50 mm
or smaller.
2. The method for producing fuel according to claim
1, wherein the compression molding process is performed at
pressure of 200 MPa or higher and 350 MPa or lower.
3. The method for producing fuel according to claim 1
or 2, wherein the fuel is compression-molded such that bulk
specific gravity is 0.35 or more and 0.65 or less.
4. The method for producing fuel according to any one
of claims 1 to 3, wherein a moisture content of the fuel is
% or more and 50% or less with respect to the raw
material before cutting.
5. The method for producing fuel according to any one
of claims 1 to 4, wherein a chlorine component of the fuel
is 30% or less with respect to the raw material before
cutting,
a potassium component of the fuel is 50% or less with
respect to the raw material before cutting, and
a sodium component of the fuel is 80% or less with
respect to the raw material before cutting.
6. A device for producing fuel comprising:
a cutting device that cuts a biomass raw material;
a washing device that washes the cut raw material with
water; and
a compression molding device that molds fuel by
compressing the raw material to which the washing water has
adhered and which has a size of 10 mm or larger and 50 mm
or smaller.
7. The device for producing fuel according to claim
6, further comprising:
a first transport unit that transports the raw
material cut by the cutting device to the washing device;
and a second transport unit that transports the raw material washed with water by the washing device to the compression molding device.
8. The device for producing fuel according to claim 6
or 7, wherein the compression molding of the fuel in the
compression molding device is performed at pressure of 200
MPa or higher and 350 MPa or lower.
9. The device for producing fuel according to any one
of claims 6 to 8, wherein in the compression molding
device, the fuel is compression-molded such that bulk
specific gravity is 0.35 or more and 0.65 or less.
10. The device for producing fuel according to any
one of claims 6 to 9, wherein a moisture content of the
fuel is 10% or more and 50% or less with respect to the raw
material before cutting.
11. The device for producing fuel according to any
one of claims 6 to 10, wherein a chlorine component of the
fuel is 30% or less with respect to the raw material before
cutting,
a potassium component of the fuel is 50% or less with
respect to the raw material before cutting, and a sodium component of the fuel is 80% or less with respect to the raw material before cutting.
12. A plant comprising:
the device for producing fuel according to any one of
claims 1 to 11; and
a combustion facility that burns the fuel produced by
the device for producing fuel.
13. A combustion facility that burns the fuel
produced by the device for producing fuel according to any
one of claims 1 to 11.
14. Fuel made of a biomass raw material having a size
of 10 mm or larger and 50 mm or smaller, and having bulk
specific gravity of 0.35 or more and 0.65 or less.
15. A combustion facility that burns fuel.
16. A method for adjusting a combustion facility that
burns fuel,
in which the fuel is made of a biomass raw material
having a size of 10 mm or larger and 50 mm or smaller and
has bulk specific gravity of 0.35 or more and 0.65 or less,
the method comprising: a process of adjusting various parameters related to combustion of the fuel.
17. The method for adjusting a combustion facility
according to claim 16, wherein the various parameters
include at least any of a fuel supply amount, a combustion
temperature, a supply amount of oxygen necessary for
combustion, an additive supply amount, and various
parameters for treatment of an exhaust gas and ash which
are generated by combustion.
Applications Claiming Priority (3)
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JP2021-009601 | 2021-01-25 | ||
PCT/JP2022/001530 WO2022158439A1 (en) | 2021-01-25 | 2022-01-18 | Method for producing fuel, device for producing fuel, plant, combustion facility, and fuel |
Publications (1)
Publication Number | Publication Date |
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AU2022210123A1 true AU2022210123A1 (en) | 2023-09-14 |
Family
ID=82549411
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AU2022210123A Pending AU2022210123A1 (en) | 2021-01-25 | 2022-01-18 | Method for producing fuel, device for producing fuel, plant, combustion facility, and fuel |
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JP (1) | JPWO2022158439A1 (en) |
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JP5557041B2 (en) * | 2011-01-26 | 2014-07-23 | Jfeエンジニアリング株式会社 | Pretreatment apparatus and pretreatment method for herbaceous biomass |
NL2008682C2 (en) * | 2012-04-23 | 2013-10-31 | Stichting Energie | Wet biomass treatment. |
JP5753959B1 (en) * | 2015-01-08 | 2015-07-22 | 株式会社日立製作所 | Plant biofuel reforming method, system and production method |
JP6165287B1 (en) * | 2016-03-22 | 2017-07-19 | 株式会社日立製作所 | Biomass reforming system and method |
JPWO2018020726A1 (en) * | 2016-07-28 | 2018-07-26 | 太平洋セメント株式会社 | Biomass pretreatment method and biomass fuel production method |
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Owner name: SUMITOMO HEAVY INDUSTRIES, LTD. Free format text: FORMER APPLICANT(S): SUMITOMO HEAVY INDUSTRIES, LTD.; EREX CO., LTD. |