CN112745960A - Auxiliary agent for biomass pyrolysis treatment and preparation method and application thereof - Google Patents
Auxiliary agent for biomass pyrolysis treatment and preparation method and application thereof Download PDFInfo
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- CN112745960A CN112745960A CN201911043542.6A CN201911043542A CN112745960A CN 112745960 A CN112745960 A CN 112745960A CN 201911043542 A CN201911043542 A CN 201911043542A CN 112745960 A CN112745960 A CN 112745960A
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- biomass
- tar
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- pyrolysis
- biomass pyrolysis
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- 239000002028 Biomass Substances 0.000 title claims abstract description 169
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 131
- 239000012752 auxiliary agent Substances 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 61
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 33
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 31
- 239000000571 coke Substances 0.000 claims abstract description 26
- 238000002309 gasification Methods 0.000 claims abstract description 26
- 239000002002 slurry Substances 0.000 claims abstract description 24
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 239000000126 substance Substances 0.000 claims abstract description 12
- 238000004537 pulping Methods 0.000 claims abstract description 10
- 150000003839 salts Chemical class 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000000919 ceramic Substances 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims abstract description 4
- 238000004523 catalytic cracking Methods 0.000 claims abstract description 3
- 239000011269 tar Substances 0.000 claims description 74
- 238000006243 chemical reaction Methods 0.000 claims description 69
- 239000007789 gas Substances 0.000 claims description 47
- 239000000463 material Substances 0.000 claims description 29
- 239000002994 raw material Substances 0.000 claims description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 25
- 229910052760 oxygen Inorganic materials 0.000 claims description 25
- 239000001301 oxygen Substances 0.000 claims description 25
- 238000007731 hot pressing Methods 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000000465 moulding Methods 0.000 claims description 13
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 12
- 230000035484 reaction time Effects 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000003197 catalytic effect Effects 0.000 claims description 8
- 239000003921 oil Substances 0.000 claims description 8
- 239000010902 straw Substances 0.000 claims description 8
- 239000011280 coal tar Substances 0.000 claims description 7
- 241001474374 Blennius Species 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 238000003763 carbonization Methods 0.000 claims description 6
- 229910044991 metal oxide Inorganic materials 0.000 claims description 6
- 150000004706 metal oxides Chemical class 0.000 claims description 6
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 6
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 6
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- 240000004516 Madia sativa Species 0.000 claims description 4
- 240000007594 Oryza sativa Species 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- 241000209140 Triticum Species 0.000 claims description 4
- 235000021307 Triticum Nutrition 0.000 claims description 4
- 239000003245 coal Substances 0.000 claims description 4
- 229910000000 metal hydroxide Inorganic materials 0.000 claims description 4
- 150000004692 metal hydroxides Chemical class 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 235000009566 rice Nutrition 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229910018509 Al—N Inorganic materials 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 2
- 239000005751 Copper oxide Substances 0.000 claims description 2
- 240000008042 Zea mays Species 0.000 claims description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 2
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 claims description 2
- 229910001863 barium hydroxide Inorganic materials 0.000 claims description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 2
- 239000000920 calcium hydroxide Substances 0.000 claims description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 2
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 229910000428 cobalt oxide Inorganic materials 0.000 claims description 2
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 2
- 238000004939 coking Methods 0.000 claims description 2
- 229910000431 copper oxide Inorganic materials 0.000 claims description 2
- 235000005822 corn Nutrition 0.000 claims description 2
- 239000010791 domestic waste Substances 0.000 claims description 2
- 239000003546 flue gas Substances 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- 239000010806 kitchen waste Substances 0.000 claims description 2
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 2
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 150000004679 hydroxides Chemical class 0.000 abstract 1
- 239000000047 product Substances 0.000 description 43
- 238000000926 separation method Methods 0.000 description 17
- 239000007787 solid Substances 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 238000000498 ball milling Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000006096 absorbing agent Substances 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000000875 high-speed ball milling Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000005539 carbonized material Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000011020 pilot scale process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0916—Biomass
- C10J2300/092—Wood, cellulose
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0983—Additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0983—Additives
- C10J2300/0986—Catalysts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/12—Heating the gasifier
- C10J2300/123—Heating the gasifier by electromagnetic waves, e.g. microwaves
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses an auxiliary agent for biomass pyrolysis treatment and a preparation method and application thereof, wherein the auxiliary agent comprises a component A, a component B and a component C; the component A is liquid oil slurry, the component B is a substance with microwave absorbability, and the substance with microwave absorbability comprises biological coke and wave-absorbing ceramic; the component C is a substance with catalytic cracking activity and comprises IA and IIA metal salts and hydroxides thereof, and VIII and IB metal salts and oxides thereof. The preparation method of the auxiliary agent comprises the steps of mixing the component A and the component B, pulping to obtain uniform viscous state slurry, and mixing and pulping with the component C. The biomass pyrolysis gasification method adopting the auxiliary agent can improve the yield of the synthesis gas, and the obtained synthesis gas product has extremely low tar content, high process economy and good application prospect.
Description
Technical Field
The invention belongs to the field of biomass processing, and relates to an auxiliary agent for biomass pyrolysis treatment, and a preparation method and application thereof.
Background
In recent years, biomass microwave pyrolysis gasification technology is widely applied and a plurality of pilot-scale experimental demonstration devices are established, but in specific engineering practice, biomass microwave heating has the defects of small tolerance to raw material difference, too fast tar formation and the like, and particularly, the tar can seriously influence the operation of a gasification system. In order to solve the problem of low tolerance of microwave to raw materials, a wave absorber (activated carbon, biological coke and silicon carbide) is usually mixed into biomass to improve the microwave energy utilization efficiency of the biomass, but the microwave absorption property of the biomass, which is differentiated due to factors such as type, batch and production place, can directly influence the microwave heating assisted effect of the wave absorber, and researches show that the microwave absorption performance of the biomass can be inhibited by adding inappropriate and inappropriate amounts of the wave absorber, so that the overall pyrolysis efficiency is influenced, and how to reasonably use the wave absorber still remains one of the problems troubling the microwave pyrolysis technology of the biomass.
Aiming at the problem of too fast tar formation, a tar cracking reaction system is usually added outside a pyrolysis reactor to carry out on-line upgrading on a gasification product, but the requirement on the tolerance of a catalyst is higher, and the conventional ZSM-5 and Me have higher requirements on the tolerance of the catalystxOy、Me/Al2O3The catalyst still has the problem of poor timeliness; the in-reactor catalysis is in-situ catalytic tar removal in the biomass pyrolysis process, and is an ideal tar removal method, but in view of the severe conditions of the pyrolysis working condition, the commonly used cheap catalysts (coke and natural ore) have the common problems of incomplete tar removal and quick inactivation.
201810126555.9 mixing the biomass raw material and the carbonized material, extruding and molding under the action of the thermosetting adhesive, then blending the extruded and molded material with a metal or metal oxide catalyst and then performing microwave pyrolysis to obtain a high-quality biochar product and a gasification product, wherein no obvious tar is generated in the pyrolysis process, and the method has the advantages of high product quality and environment-friendly pyrolysis process. 201811022722.1 the AnBm type metal mixture is directly loaded on the semi-coke powder with wave absorption property and is evenly mixed with the pyrolysis material to form even hot spots in the microwave field, so that the overall temperature distribution of the material is more even, and the catalytic active component loaded on the semi-coke is in the high energy field, thus enhancing the catalytic active point position, greatly reducing the catalyst cost and not introducing too much impurities. However, the metal oxide and the metal mixture with catalytic activity are commonly added in the method, and the bottleneck problems that the metal catalyst is difficult to recover, the quality of the biochar product is influenced and the like exist.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the auxiliary agent for biomass pyrolysis treatment and the preparation method and the application thereof, the biomass pyrolysis gasification method adopting the auxiliary agent can improve the yield of the synthesis gas, and the obtained synthesis gas product has extremely low tar content, high process economy and good application prospect. Solves the problems of low synthesis gas yield and poor quality in the existing process for preparing synthesis gas by using biomass as a raw material through pyrolysis.
The invention provides an auxiliary agent for biomass pyrolysis treatment, which comprises a component A, a component B and a component C;
the component A is liquid oil slurry, preferably liquid oil slurry capable of undergoing coking reaction at normal pressure and at 200-600 ℃, the liquid oil slurry can be one or more of pyrolysis tar, catalytic oil slurry, pyrolysis tar in a biorefinery process and heavy tar in a coal carbonization process, and is preferably pyrolysis tar in a biorefinery process; wherein the pyrolysis tar from the biorefinery process comprises any biological tar, and specifically can be one or more of straw tar, forest tar, wheat straw tar, rice hull tar, microalgae tar and seaweed tar; the cracked tar is tar obtained in the urban industry and domestic waste treatment process, and specifically can be one or more of tire tar, plastic tar, resin tar, paint tar and kitchen waste tar; the heavy tar in the coal carbonization process can be one or more of low-temperature coal tar, medium-temperature coal tar and high-temperature coal tar; catalytic slurries include, but are not limited to, cracked slurries of several feedstocks such as vacuum residuum, atmospheric residuum, ethylene tar, and the like; the component A is further preferably forest tar and seaweed tar, wherein the mass ratio of the forest tar to the seaweed tar is 1-10: 1.
the component B is a substance with microwave absorbability, the substance with microwave absorbability comprises biological coke and/or wave-absorbing ceramic, wherein the biological coke is one or more selected from pyrolytic biological coke at 600-1000 ℃, and the wave-absorbing ceramic is one or more selected from SiC, SiN, Si-C-N, Si-C-B, Si-N-B, Si-C-N-B and Si-C-Al-N ceramic materials; the pyrolytic biological coke is preferred, and the pyrolytic biological coke at 800 ℃ is further preferred.
The component C is a substance with catalytic cracking activity, and comprises one or more of IA group metal salt, IIA group metal salt, IA group metal hydroxide, IIA group metal hydroxide, VIII group metal salt, VIII group metal oxide, IB group metal salt and IB group metal oxide, and specifically can be one or more of potassium carbonate, sodium carbonate, lithium carbonate, potassium hydroxide, sodium hydroxide, calcium hydroxide, barium hydroxide, iron oxide, nickel oxide, cobalt oxide and copper oxide, and preferably is potassium carbonate and nickel oxide, wherein the mass ratio of the potassium carbonate to the nickel oxide is 1-5: 1.
In the assistant for biomass microwave pyrolysis treatment, the content of the component A is 70wt% -90 wt%, the content of the component B is 5wt% -15 wt%, and the content of the component C is 5wt% -15 wt% based on the weight content of the assistant.
In a second aspect, the present invention provides a method for preparing the above assistant for biomass pyrolysis treatment, the method comprising the following steps:
(1) firstly, mixing the component A and the component B, and then pulping to obtain uniform viscous state slurry;
(2) and (2) mixing the slurry obtained in the step (1) with the component C for pulping treatment, and obtaining the biomass pyrolysis treatment auxiliary agent after treatment.
In the above method for preparing the assistant for biomass pyrolysis treatment, the pulping treatment can be carried out by any device capable of forming a slurry of solid and liquid phases, such as a grinder, and further preferably a ball mill.
In the preparation method of the auxiliary agent for biomass pyrolysis treatment, the pulping treatment temperature in the steps (1) and (2) is 15-40 ℃.
In the above method for preparing an assistant for biomass pyrolysis treatment, the third aspect of the present invention provides an application of the assistant for biomass pyrolysis treatment in a biomass pyrolysis gasification treatment process, where the pyrolysis gasification treatment process is as follows:
(1) mixing a biomass raw material and an auxiliary agent, and carrying out molding treatment to obtain a biomass reaction material;
(2) and (2) allowing the biomass reaction material obtained in the step (1) to enter a biomass pyrolysis reactor for reaction, and separating reaction products to obtain biomass synthesis gas and biological coke.
In the application of the assistant for biomass pyrolysis treatment in the biomass pyrolysis gasification treatment process, the biomass raw material and the assistant in the step (1) are mixed and formed as follows: mixing the biomass raw material with the auxiliary agent, uniformly mixing, and then carrying out hot press forming to obtain a formed biomass reaction material, wherein the maximum dimension of the material in the direction is not more than 40mm, and preferably 10-20 mm. Further preferably, the hot press molding conditions are as follows: the temperature is 60-120 ℃ and 20-50 kg/cm2Hot pressing for 1-10 min, heating to 150-180 deg.C, and 60-100 kg/cm2Carrying out hot pressing for 1-10 minutes under the condition, and then cooling for later use.
In the application of the auxiliary agent for biomass pyrolysis treatment in the biomass pyrolysis gasification treatment process, the mass ratio of the biomass raw material to the auxiliary agent is (4-20): 1.
in the application of the auxiliary agent for biomass pyrolysis treatment in the biomass pyrolysis gasification treatment process, the biomass raw material is any substance containing lignocellulose, and can be one or more of corn straw, rice hull, wheat straw, wood block, leaves and branches.
In the application of the assistant for biomass pyrolysis treatment in the biomass pyrolysis gasification treatment process, the assistant for biomass pyrolysis treatment in the step (1) is the assistant for biomass pyrolysis treatment.
The application of the auxiliary agent for biomass pyrolysis treatment in the biomass pyrolysis gasification treatment process comprises the step (2)The reaction temperature in the biomass pyrolysis reactor is 700-900 ℃, the reaction time is 10-30 minutes, the reaction is preferably carried out under the microwave condition, and the microwave power density is 1 multiplied by 105～10×105W/m3(ii) a Further preferably, the reaction is carried out in the presence of oxygen-containing gas with the reaction pressure of 0-0.6 MPa, wherein the oxygen-containing gas is one or more of oxygen, air, a mixed gas of oxygen and nitrogen, a mixed gas of oxygen and flue gas, a mixed gas of oxygen and water vapor or a mixed gas of oxygen and inert gas, the volume fraction of the oxygen in the mixed gas is 10-40%, and the flow rate of the oxygen-containing gas is 0.01-0.1 m3/h。
In the application of the assistant for biomass pyrolysis treatment in the biomass pyrolysis gasification treatment process, the gas-solid separation in the step (2) is based on one or more of gravity settling, centrifugal separation, filter screen separation, electrostatic separation, adsorption separation and the like, but is not limited to the above modes, and specifically comprises one or more of cyclone separation, cloth bag filtration, electrostatic dust removal and filler adsorption separation.
Compared with the prior art, the auxiliary agent for biomass pyrolysis treatment, the preparation method and the application thereof have the following advantages:
1. the auxiliary agent for biomass pyrolysis treatment comprises a component A, a component B and a component C, wherein the component A in the auxiliary agent is carbonized due to poor thermal stability in the temperature rising process to form a carbon layer for removing tar generated in the pyrolysis process; the component B can regulate and control the carbonization process of the component A due to the adjustable microwave absorption performance of the component B, so that tar generated in the biomass pyrolysis process can be synchronously removed in situ in a carbon layer, and the outward release behavior of the tar is inhibited; the component C can promote the carbonization degree of the component A and inhibit the component A from generating new tar molecules due to the dual functions of catalytic carbonization and cracking, and is favorable for obtaining high-quality biomass synthesis gas products.
2. According to the biomass microwave pyrolysis gasification treatment method, a biomass reaction material suitable for microwave pyrolysis is obtained by adopting a biomass raw material and auxiliary agent hot press forming method, the hot press forming method is firstly carried out at a lower temperature and under a lower pressure, so that part of viscous-state auxiliary agent slowly permeates and moves outwards and gradually forms a coating layer on the surface of the biomass raw material, then the coating layer is polymerized at a higher temperature and under a higher pressure to form a compact coating layer, and meanwhile, the auxiliary agent dispersed inside is further fully contacted with the biomass material to form the biomass forming reaction material suitable for microwave pyrolysis.
3. The biomass microwave pyrolysis gasification treatment method provided by the invention utilizes the added auxiliary agent to gradually form a compact carbon layer on the surface of the material in the pyrolysis process to crack and remove tar and reformed gas, so that the quality of the biomass synthesis gas is improved. Compared with the conventional method for directly adding the microwave absorbent in the microwave pyrolysis process, the method for directly adding the microwave absorbent in the microwave pyrolysis process has the advantages that the distribution of a microwave field in the biomass heating process is not changed by adding the auxiliary agent, namely the added auxiliary agent does not obviously influence the microwave heating performance and the pyrolysis efficiency of the biomass, the bottleneck problems of reduced microwave absorption of the biomass and poor pyrolysis intensity caused by adding the conventional wave absorbent are effectively solved, and the heating advantage of the microwave body for pyrolysis when the biomass absorbs the microwave is ensured.
4. The additive added in the biomass microwave pyrolysis gasification treatment method can form a carbonized coating and synchronously crack and remove tar through optimized regulation and control during biomass pyrolysis, so that the aim of producing high-quality synthesis gas through pyrolysis and gasification in a one-stage microwave reactor is fulfilled, subsequent processes such as gas separation, purification and the like are greatly simplified, the addition of exogenous substances in the whole pyrolysis process is remarkably reduced, and better technical feasibility and economic performance are generally presented.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Example 1
Taking 70 percent of component A1, 15 percent of component B1 and 15 percent of component C1 according to mass fraction, wherein the component A1 is plastic tar, the component B1 is SiC, and the component C1 is Ca (OH)2. Components A1 and B1 were first ball milled at 40 ℃ at 200 rpm in a high speed ball millAnd then, obtaining uniform viscous state slurry, mixing the slurry with the component C1, and carrying out low-speed ball milling treatment at 15 ℃ at 80 rpm to obtain the auxiliary agent MWA1 for biomass microwave pyrolysis treatment.
Example 2
According to the mass fraction, 90% of component A2, 5% of component B2 and 5% of component C2 are taken, wherein component A2 is high-temperature coal tar, component B2 is SiN, and component C2 is KOH. Firstly, carrying out high-speed ball milling treatment on the components A2 and B2 at 15 ℃ at 200 rpm to obtain uniform viscous state slurry, then mixing the slurry with the component C2, and carrying out low-speed ball milling treatment at 40 ℃ at 80 rpm to obtain the auxiliary agent MWA2 for biomass microwave pyrolysis treatment.
Example 3
According to the mass fraction, 80% of component A3, 5% of component B3 and 15% of component C3 are taken, wherein the mass ratio of forest tar to seaweed tar in component A3 is 1:1, component B3 is pyrolytic biological coke, and the mass ratio of potassium carbonate to nickel oxide in component C3 is 1: 5. Firstly, carrying out high-speed ball milling treatment on the components A3 and B3 at 15 ℃ at 200 rpm to obtain uniform viscous state slurry, then mixing the slurry with the component C3, and carrying out low-speed ball milling treatment at 40 ℃ at 80 rpm to obtain the auxiliary agent MWA3 for biomass microwave pyrolysis treatment.
Example 4
According to the mass fraction, 82.35 percent of component A1 and 17.65 percent of component B1 are taken. Firstly, carrying out high-speed ball milling treatment on the components A1 and B1 at 40 ℃ at 200 r/min to obtain uniform viscous state slurry, and carrying out low-speed ball milling treatment at 15 ℃ at 80 r/min to obtain the auxiliary agent MWA4 for biomass microwave pyrolysis treatment.
Example 5
According to the mass fraction, 84.21 percent of component A2 and 15.79 percent of component C2 are taken. And (3) performing low-speed ball milling treatment on the components A2 and C2 at 40 ℃ at 80 rpm to obtain the assistant MWA5 for microwave pyrolysis treatment of the biomass.
Example 6
According to the mass fraction, 25 percent of component B3 and 75 percent of component C3 are taken. And (3) performing low-speed ball milling treatment on the components B3 and C3 at 40 ℃ at 80 rpm to obtain the auxiliary agent MWA6 for biomass microwave pyrolysis treatment.
Example 7
According to the mass percentage, 80 percent of biomass raw material and 20 percent of auxiliary agent MWA1 are mixed, and the mixture is evenly mixed at 60 ℃ and 20kg/cm2Hot pressing for 10 min, heating to 150 deg.C, and 60kg/cm2Hot pressing for 10 minutes under the condition, and cooling for later use to obtain a formed biomass reaction material MWM1 with the maximum direction size of 10 mm.
Example 8
According to the mass percentage, 95 percent of biomass raw material and 5 percent of auxiliary agent MWA2 are mixed, and are evenly mixed at 120 ℃ and 50kg/cm2Hot pressing for 1 min, heating to 180 deg.C, and 100kg/cm2And (3) carrying out hot pressing for 1 minute under the condition, and cooling for later use to obtain a formed biomass reaction material MWM2 with the maximum direction size of 20 mm.
Example 9
According to the mass percentage, 85 percent of biomass raw material and 15 percent of auxiliary agent MWA3 are mixed, and the mixture is evenly mixed at 100 ℃ and 30kg/cm2Hot pressing for 5 min, heating to 160 deg.C, and 100kg/cm2Hot pressing for 2 minutes under the condition, and cooling for later use to obtain a formed biomass reaction material MWM3 with the maximum direction size of 10 mm.
Example 10
According to the mass percentage, 85 percent of biomass raw material and 15 percent of auxiliary agent MWA3 are mixed, and the mixture is evenly mixed at 160 ℃ and 100kg/cm2Hot pressing for 7 minutes under the condition, and cooling for later use to obtain a molded biomass reaction material MWM3-1 with the maximum direction size of 10 mm.
Example 11
According to the mass percentage, 80 percent of biomass raw material and 20 percent of auxiliary agent MWA4 are mixed, and the mixture is evenly mixed at 60 ℃ and 20kg/cm2Hot pressing for 10 min, heating to 150 deg.C, and 60kg/cm2Hot pressing for 10 minutes under the condition, and cooling for later use to obtain a formed biomass reaction material MWM4 with the maximum direction size of 10 mm.
Example 12
According to the mass percentage, 95 percent of biomass raw material and 5 percent of auxiliary agent MWA5 are mixed, and are evenly mixed at 120 ℃ and 50kg/cm2Hot pressing for 1 min, heating to 180 deg.C and 100 deg.Ckg/cm2Hot pressing for 1 minute under the condition, and cooling for later use to obtain a molded biomass reaction material MWM5 with the maximum direction size of 10 mm.
Example 13
According to the mass percentage, 85 percent of biomass raw material and 15 percent of auxiliary agent MWA6 are mixed, and the mixture is evenly mixed at 100 ℃ and 30kg/cm2Hot pressing for 5 min, heating to 160 deg.C, and 100kg/cm2Hot pressing for 2 minutes under the condition, and cooling for later use to obtain a formed biomass reaction material MWM6 with the maximum direction size of 10 mm.
Example 14 (shaped Biomass reaction mass MWM 1)
The biomass reaction material MWM1 obtained by the molding treatment enters a biomass pyrolysis reactor, and the microwave power density is 1 multiplied by 10 at the reaction temperature of 700 DEG C5W/m3Air flow of 0.02m3Reaction is carried out under the conditions of 0.1MPa of reaction pressure and 30 minutes of reaction time to obtain a pyrolysis product of which the main part is gaseous product and a small amount of biological coke, wherein the gaseous product is subjected to gas-solid separation to obtain a biomass synthesis gas product, the yield of the synthesis gas is 1.11m3Perkg, syngas content 65%, H2a/CO ratio of 1.74 and a tar content of 150mg/Nm3。
Example 15 (shaped Biomass reaction mass MWM 2)
The biomass reaction material MWM2 obtained by the molding treatment enters a biomass pyrolysis reactor, and the microwave power density is 10 multiplied by 10 at the reaction temperature of 900 DEG C5W/m3The oxygen flow rate was 0.04m3H, water vapor flow of 0.06m3The reaction is carried out under the conditions of 0.6MPa of reaction pressure and 10 minutes of reaction time to obtain a pyrolysis product of which the main part is gaseous product and a small amount of biological coke, wherein the gaseous product is subjected to gas-solid separation to obtain a biomass synthesis gas product, the yield of the synthesis gas is 1.86m3Perkg, syngas content 85%, H2a/CO ratio of 1.47 and a tar content of 220mg/Nm3。
Example 16 (shaped Biomass reaction mass MWM 3)
The biomass reaction material MWM3 obtained by the molding treatment enters a biomass pyrolysis reactor at the reaction temperatureAt 900 deg.C and microwave power density of 10 × 105W/m3Oxygen flow rate of 0.08m3H, water vapor flow rate of 0.08m3Reaction is carried out under the conditions of 0.2MPa of reaction pressure and 10 minutes of reaction time to obtain a pyrolysis product of which the main part is gaseous product and a small amount of biological coke, wherein the gaseous product is subjected to gas-solid separation to obtain a biomass synthesis gas product, the yield of the synthesis gas is 2.53m3Perkg, 90% syngas content, H2a/CO ratio of 1.93 and a tar content of 50mg/Nm3。
Example 17 (shaped Biomass reaction mass MWM 3-1)
The biomass reaction material MWM3-1 obtained by molding treatment enters a biomass pyrolysis reactor, and the microwave power density is 10 multiplied by 10 at the reaction temperature of 900 DEG C5W/m3Oxygen flow rate of 0.08m3H, water vapor flow rate of 0.08m3Reaction is carried out under the conditions of 0.2MPa of reaction pressure and 10 minutes of reaction time to obtain a pyrolysis product of which the main part is gaseous product and a small amount of biological coke, wherein the gaseous product is subjected to gas-solid separation to obtain a biomass synthesis gas product, the yield of the synthesis gas is 2.35m3Perkg, syngas content 85%, H2a/CO ratio of 1.82 and a tar content of 85mg/Nm3。
Example 18 (shaped Biomass reaction mass MWM 4)
The biomass reaction material MWM4 obtained by the molding treatment enters a biomass pyrolysis reactor, and the microwave power density is 1 multiplied by 10 at the reaction temperature of 700 DEG C5W/m3Air flow of 0.02m3Reaction is carried out under the conditions of 0.1MPa of reaction pressure and 30 minutes of reaction time to obtain a pyrolysis product of which the main part is gaseous product and a small amount of biological coke, wherein the gaseous product is subjected to gas-solid separation to obtain a biomass synthesis gas product, the yield of the synthesis gas is 0.87m3Per kg, syngas content 52%, H2a/CO ratio of 1.22 and a tar content of 480mg/Nm3。
Example 19 (shaped Biomass reaction mass MWM 5)
The biomass reaction material MWM5 obtained by the molding treatment enters a biomass pyrolysis reactor, and the microwave power density is 10 multiplied by 10 at the reaction temperature of 900 DEG C5W/m3The oxygen flow rate was 0.04m3H, water vapor flow of 0.06m3The reaction is carried out under the conditions of 0.6MPa of reaction pressure and 10 minutes of reaction time to obtain a pyrolysis product of which the main part is gaseous product and a small amount of biological coke, wherein the gaseous product is subjected to gas-solid separation to obtain a biomass synthesis gas product, the yield of the synthesis gas is 1.62m3Per kg, syngas content 79%, H2a/CO ratio of 1.38 and a tar content of 360mg/Nm3。
Example 20 (shaped Biomass reaction mass MWM 6)
The biomass reaction material MWM6 obtained by the molding treatment enters a biomass pyrolysis reactor, and the microwave power density is 10 multiplied by 10 at the reaction temperature of 900 DEG C5W/m3Oxygen flow rate of 0.08m3H, water vapor flow rate of 0.08m3Reaction is carried out under the conditions of 0.2MPa of reaction pressure and 10 minutes of reaction time to obtain a pyrolysis product of which the main part is gaseous product and a small amount of biological coke, wherein the gaseous product is subjected to gas-solid separation to obtain a biomass synthesis gas product, the yield of the synthesis gas is 2.22m3Perkg, syngas content 82%, H2a/CO ratio of 1.75 and a tar content of 185mg/Nm3。
Comparative example 1 (without using an auxiliary for microwave pyrolysis of Biomass, comparative example 16)
The biomass raw material is processed at 100 ℃ and 30kg/cm2Hot pressing for 5 min, heating to 160 deg.C, and 100kg/cm2Hot pressing for 2 minutes under the condition, and cooling for later use to obtain the formed biomass raw material with the maximum dimension of 10mm in the direction. The biomass raw material obtained by the molding treatment enters a biomass pyrolysis reactor, and the microwave power density is 10 multiplied by 10 at the reaction temperature of 900 DEG C5W/m3Oxygen flow rate of 0.08m3H, water vapor flow rate of 0.08m3Reaction is carried out under the conditions of 0.2MPa of reaction pressure and 10 minutes of reaction time to obtain a pyrolysis product of which the main part is gaseous product and a small amount of biological coke, wherein the gaseous product is subjected to gas-solid separation to obtain a biomass synthesis gas product, the yield of the synthesis gas is 2.05m3Perkg, synthesis gas content 75%, H2a/CO ratio of 1.28, a tar content of 2000mg/Nm3。
Comparative example 2 (direct microwave pyrolysis of Biomass bulk Material, comparison with example 16)
Directly feeding loose biomass raw material into a biomass pyrolysis reactor, and performing microwave power density of 10 multiplied by 10 at the reaction temperature of 900 DEG C5W/m3Oxygen flow rate of 0.08m3H, water vapor flow rate of 0.08m3Reaction is carried out under the conditions of 0.2MPa of reaction pressure and 10 minutes of reaction time to obtain a pyrolysis product of which the main part is gaseous product and a small amount of biological coke, wherein the gaseous product is subjected to gas-solid separation to obtain a biomass synthesis gas product, the yield of the synthesis gas is 1.99m377% of synthesis gas/kg, H2a/CO ratio of 1.33 and a tar content of 1800mg/Nm3。
Claims (21)
1. An auxiliary agent for biomass pyrolysis treatment, which comprises a component A, a component B and a component C;
the component A is liquid oil slurry which can generate coking reaction at normal pressure and 200-600 ℃, the liquid oil slurry is one or more of pyrolysis tar, catalytic oil slurry, pyrolysis tar in a biorefinery process and heavy tar in a coal carbonization process, and the pyrolysis tar in the biorefinery process is preferred;
the component B is a substance with microwave absorbability, and the substance with microwave absorbability comprises biological coke and/or wave-absorbing ceramic;
the component C is a substance with catalytic cracking activity and comprises one or more of IA group metal salt, IIA group metal salt, IA group metal hydroxide, IIA group metal hydroxide, VIII group metal salt, VIII group metal oxide, IB group metal salt and IB group metal oxide.
2. The biomass pyrolysis treatment aid of claim 1, wherein: the pyrolysis tar from the biorefinery process comprises any biological tar, and specifically comprises one or more of straw tar, forest tar, wheat straw tar, rice hull tar, microalgae tar and seaweed tar.
3. The biomass pyrolysis treatment aid of claim 1, wherein: the pyrolysis tar is tar obtained in the urban industry and domestic waste treatment process, and specifically is one or more of tire tar, plastic tar, resin tar, paint tar and kitchen waste tar.
4. The biomass pyrolysis treatment aid of claim 1, wherein: the heavy tar in the coal dry distillation process is one or more of low-temperature coal tar, medium-temperature coal tar and high-temperature coal tar.
5. The biomass pyrolysis treatment aid of claim 1, wherein: the liquid oil slurry is forest tar and seaweed tar.
6. The biomass pyrolysis treatment aid of claim 1, wherein: the biological coke is one or more selected from pyrolysis biological coke at 600-1000 ℃.
7. The biomass pyrolysis treatment aid of claim 1, wherein: the wave-absorbing ceramic is one or more selected from SiC, SiN, Si-C-N, Si-C-B, Si-N-B, Si-C-N-B and Si-C-Al-N ceramic materials.
8. The biomass pyrolysis treatment aid of claim 1, wherein: the component B is pyrolytic biological coke, and is further preferably pyrolytic biological coke at 800 ℃.
9. The biomass pyrolysis treatment aid of claim 1, wherein: the component C is one or more of potassium carbonate, sodium carbonate, lithium carbonate, potassium hydroxide, sodium hydroxide, calcium hydroxide, barium hydroxide, iron oxide, nickel oxide, cobalt oxide and copper oxide, and preferably potassium carbonate and nickel oxide.
10. The biomass pyrolysis treatment aid of claim 1, wherein: based on the weight content of the auxiliary agent, the content of the component A is 70-90 wt%, the content of the component B is 5-15 wt%, and the content of the component C is 5-15 wt%.
11. A method of making an aid for the pyrolysis treatment of biomass as claimed in any one of claims 1 to 10, the method comprising:
(1) firstly, mixing the component A and the component B, and then pulping to obtain uniform viscous state slurry;
(2) and (2) mixing the slurry obtained in the step (1) with the component C for pulping treatment, and obtaining the biomass pyrolysis treatment auxiliary agent after treatment.
12. The process for producing an assistant for pyrolysis of biomass according to claim 11, wherein: the pulping treatment is realized by a grinder, and a ball mill is further preferred.
13. The process for producing an assistant for pyrolysis of biomass according to claim 11, wherein: the pulping treatment temperature in the step (1) is 15-40 ℃.
14. Use of the biomass pyrolysis treatment auxiliary according to any one of claims 1 to 10 in a biomass pyrolysis gasification treatment process comprising:
(1) mixing a biomass raw material and an auxiliary agent, and carrying out molding treatment to obtain a biomass reaction material;
(2) and (2) allowing the biomass reaction material obtained in the step (1) to enter a biomass pyrolysis reactor for reaction, and separating reaction products to obtain biomass synthesis gas and biological coke.
15. The use of an auxiliary for biomass pyrolysis treatment according to claim 14 in a biomass pyrolysis gasification process, wherein: the mixing and forming process of the biomass raw material and the auxiliary agent in the step (1) is as follows: mixing the biomass raw material with the auxiliary agent, uniformly mixing, and then carrying out hot press forming to obtain a formed biomass reaction material, wherein the maximum dimension of the material in the direction is not more than 40mm, and preferably 10-20 mm.
16. The use of an auxiliary for biomass pyrolysis treatment according to claim 14 in a biomass pyrolysis gasification process, wherein: the hot-press molding conditions are as follows: the temperature is 60-120 ℃ and 20-50 kg/cm2Hot pressing for 1-10 min, heating to 150-180 deg.C, and 60-100 kg/cm2Carrying out hot pressing for 1-10 minutes under the condition, and then cooling for later use.
17. The use of an auxiliary for biomass pyrolysis treatment according to claim 14 in a biomass pyrolysis gasification process, wherein: the mass ratio of the biomass raw material to the auxiliary agent is 4-20: 1.
18. the use of an auxiliary for biomass pyrolysis treatment according to claim 14 in a biomass pyrolysis gasification process, wherein: the biomass raw material is any substance containing lignocellulose, and specifically is one or more of corn straw, rice hull, wheat straw, wood block, tree leaf and branch.
19. The use of an auxiliary for biomass pyrolysis treatment according to claim 14 in a biomass pyrolysis gasification process, wherein: the reaction temperature in the biomass pyrolysis reactor in the step (2) is 700-900 ℃, and the reaction time is 10-30 minutes.
20. Use of an auxiliary agent for biomass pyrolysis treatment according to claim 14 or 19 in a biomass pyrolysis gasification process, wherein: the reaction in the step (2) is carried out under the microwave condition, and the microwave power density is 1 multiplied by 105～10×105W/m3。
21. The use of an auxiliary for biomass pyrolysis treatment according to claim 14 in a biomass pyrolysis gasification process, wherein: the reaction in the step (2) is carried out in the presence of oxygen-containing gas, the reaction pressure is 0-0.6 MPa, wherein the oxygen-containing gas is one or more of oxygen, air, a mixed gas of oxygen and nitrogen, a mixed gas of oxygen and flue gas, a mixed gas of oxygen and water vapor or a mixed gas of oxygen and inert gas, the volume fraction of the oxygen in the mixed gas is 10-40%, and the flow rate of the oxygen-containing gas is 0.01-0.1 m3/h。
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Effective date of registration: 20231110 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sinopec (Dalian) Petrochemical Research Institute Co.,Ltd. Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC Corp. |