CN106635212A - Pretreatment method of landfill gas - Google Patents
Pretreatment method of landfill gas Download PDFInfo
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- CN106635212A CN106635212A CN201611232664.6A CN201611232664A CN106635212A CN 106635212 A CN106635212 A CN 106635212A CN 201611232664 A CN201611232664 A CN 201611232664A CN 106635212 A CN106635212 A CN 106635212A
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- Prior art keywords
- landfill gas
- gas
- desiliconization
- landfill
- preprocess method
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- 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
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0012—In-line filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1468—Removing hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1487—Removing organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
-
- 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
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/102—Removal of contaminants of acid contaminants
- C10L3/103—Sulfur containing contaminants
-
- 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
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/106—Removal of contaminants of water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/304—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/55—Compounds of silicon, phosphorus, germanium or arsenic
- B01D2257/556—Organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
-
- 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
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/54—Specific separation steps for separating fractions, components or impurities during preparation or upgrading of a fuel
- C10L2290/541—Absorption of impurities during preparation or upgrading of a fuel
-
- 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
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/54—Specific separation steps for separating fractions, components or impurities during preparation or upgrading of a fuel
- C10L2290/547—Filtration for separating fractions, components or impurities during preparation or upgrading of a fuel
-
- 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
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a pretreatment method of landfill gas. The pretreatment method at least comprises the steps of (A) introducing the landfill gas from a refuse landfill into a desulphurization device for desulphurization and discharging the generated wastewater into a discharge device; (B) conveying the desulphurized landfill gas into a desilicication device for desilicication and discharging the generated wastewater into the discharge device; (C) carrying out dehydration, namely treating the desilicicated landfill gas through a primary-efficiency filter device, primarily removing the moisture through a heat exchange device, removing a liquid phase through a gas-water separation device and discharging the generated wastewater into the discharge device; and (D) carrying out negative pressure extraction on the dehydrated landfill gas through a roots blower, emitting heat through an air cooling radiator and further removing impurities through a precise filter device to obtain the primarily treated landfill gas. The pretreatment method has a good landfill gas purifying pretreatment effect, and toxic and harmful impurities are effectively removed, so that the processing and using security is improved.
Description
Technical field
The present invention relates to a kind of garbage loading embeading desulfurization desiliconization etc. removes the preprocess method of poisonous and harmful impurity content, particularly
A kind of landfill gas preprocess method.
Background technology
In today of 21 century, the mankind are faced with two serious environmental problem challenges, are on the one hand waste management problems,
On the other hand it is greenhouse effects aggravation problem.
Conventional domestic rubbish disposal mode has：(1) sanitary landfills；(2) Composting treatment；(3) burning disposal.Wherein health
Landfill is the major way for processing domestic waste.At present, the house refuse that China has more than 80% takes sanitary landfills side
Formula process.The constituent of the rubbish landfill gas produced by garbage loading embeading is carbon dioxide, methane, nitrogen, oxygen, ammonia, sulphur
Change hydrogen and other organic gas.The rubbish landfill gas are a kind of potential clean energy resourcies, its calorific value is generally 7450～
22350KJ/m3, dehydration is removed after the impurity composition such as CO2, can further be improved calorific value, reach or close natural gas calorific value.
In typical rubbish landfill gas, methane content is about 45%～55%, and carbon dioxide content is about 40%～55%.If rubbish
Landfill gas are directly discharged can produce stronger greenhouse effects.According to statistics, in some developed countries such as the U.S., Germany, garbage loading embeading
Field has become the first big greenhouse gas emission source.However, at present major part cleaning equipment is only to the methane in rubbish landfill gas
Purified, and carbon dioxide is treated as waste gas and is drained in air, aggravates greenhouse effects.
Refuse landfill gas, also known as landfill gas, are the gas of rubbish generation in biodegradation process after landfill, with danger
Evil property；Landfill gas main component is methane, carbon dioxide, and wherein methane is about 45%～50%, carbon dioxide is 40%～
60%, also include hydrogen sulfide and siloxanes etc. containing a small amount of objectionable impurities；The landfill gas of working process were carried out, can be direct
Supply industry and greenhouse user, wherein for heating or the thermal efficiency highest of this mode biogas of industrial production；Landfill gas Jing are received
After collection, Jing compressors pressurized delivered to internal combustion unit, Jing burning conversions are transferred to electric power booster stations into electric energy, are transported to local electricity
Net is for users to use；Landfill gas are alternatively arranged as the power fuel of means of transport, Jing dewatered cleans in addition to for heat and power supply
As pipeline gas after process, carbon dioxide commercial is applied to, fuel as production methyl alcohol etc..
The content of the invention
To solve the above problems, the invention discloses a kind of landfill gas preprocess method, purifies with good landfill gas
Pretreating effect, effectively removes poisonous and harmful impurity content, so as to improve the security that its processing is used.
Landfill gas preprocess method disclosed by the invention, at least comprises the steps：
A, desulfurizer desulfurization will be passed through from the landfill gas of refuse landfill, the waste water of generation enters drainage arrangement；
B, the landfill gas after desulfurization are sent into into desilication device desiliconization, the waste water of generation enters drainage arrangement；
C, dehydration：By the landfill gas Jing primarily efficient filter device after desiliconization, then institute is tentatively removed through heat-exchanger rig aqueous
Divide, then gas and water separator removes liquid phase, the waste water of generation enters drainage arrangement；
D, dehydration after landfill gas Jing roots blower negative pressure extracting, after through air-cooled radiator radiating, precise filtering device
The removal of impurity is further gone so as to obtain the landfill gas that preliminary treatment is finished.
Each of a kind of improvement of landfill gas preprocess method disclosed by the invention, desulfurizer and/or desilication device
Unit includes a gas-liquid separator with mist eliminator and a tourie；Suction line, connection are housed on gas-liquid separator
Unstripped gas pond, gas-liquid separator bottom is provided with discharging tube, and the bottom of gas-liquid separator is provided with mudhole, and mudhole is connected by pipeline
Drainage arrangement is led to, the outlet line connection primarily efficient filter device of the tourie equipped with absorbing medium；The absorbing medium correspondence
It is desulfurization absorbing medium or desiliconization absorbing medium when desulfurizer or desilication device.
A kind of improvement of landfill gas preprocess method disclosed by the invention, desulfurizer and/or desilication device each include
At least two desulfurization units or at least two desiliconization units.
A kind of improvement of landfill gas preprocess method disclosed by the invention, in desulfurizer and/or desilication device at least
Be arranged in parallel between two desulfurization units or at least two desiliconization units between be arranged in parallel.
A kind of improvement of landfill gas preprocess method disclosed by the invention, in desulfurizer and/or desilication device at least
Be arranged in series between two desulfurization units or at least two desiliconization units between be arranged in series.
A kind of improvement of landfill gas preprocess method disclosed by the invention, roots blower operationally adopts negative pressure extracting.
A kind of improvement of landfill gas preprocess method disclosed by the invention, on the gas-liquid interface of separator froth breaking is additionally provided with
Plate.
A kind of improvement of landfill gas preprocess method disclosed by the invention, froth breaking plate includes rigid core and is coated on core
Foaming structure on the outside of portion.
A kind of improvement of landfill gas preprocess method disclosed by the invention, the core of froth breaking plate is irony.Preferably, core
Surface also has the orientation texture for protruding its surface.It is further preferred that the length of projection is 0.01-0.03mm.We
Case is by the fiber reinforcement transition structure (projection) using appropriate protrusion length, and its protrusion is specifically long in core surface
Degree, so as to form appropriate " pinning " between core and surrounding layer, and by the control to the length, it is to avoid it is too short and
" pinning " DeGrain, does not significantly have influence on the performance of product, while avoiding to link enhancement effect between the two
Length when using long middle stress and in prominent interface to form larger torque but protuberance ruptures in interface, from
And overall performance is affected, be thus under this length has between the two fabulous combination reinforcing property, and strengthens
The wear-resistant and corrosive nature of material, and avoid the splitting of material.Meanwhile, the pinned structure can also be effectively excellent
Change the defect of the outer holding structure of froth breaking plate, so as to lift the overall corrosion resistance energy of froth breaking plate.And with the pinned structure on side
Strengthen the effect of froth breaking so as to produce effective shearing effect along going out to be formed more unique miniature broached-tooth design in edge
Really.It is further preferred that the oriented fibrous structure of fiber reinforcement transition structure is the iron amalgam being at least partially oriented.With body junction
The porous surface of structure forms induction face and further brushing mercury salt solution with irony thin layer, so as to realize the formation of iron amalgam,
Simultaneously by solution concentration and environment temperature so as to realizing orientation.By the epontic iron amalgam for adopting in the program,
So as to improve Surface binding energy power, the solid-state enhancing structure grown with it, so as to improve the binding ability with externally-packed structure, from
And anticorrosion antiwear performance is lifted, extend the service life of product.
A kind of improvement of landfill gas preprocess method disclosed by the invention, froth breaking plate is to be closed through chain by the Slab element of fritter
Form.Boundary length, and the unique sawtooth in matched edges can be increased so as to effectively strengthen defoaming effect.
Landfill gas preprocess method disclosed by the invention, with good landfill gas purification pretreating effect, effectively removes
Poisonous and harmful impurity content, so as to improve the security that its processing is used.
Description of the drawings
Fig. 1, a kind of structural representation of embodiment of landfill gas preprocess method disclosed by the invention.
Reference numerals list：
1st, drainage arrangement；2nd, desulfurizer；3rd, desilication device；
4th, primarily efficient filter device；5th, heat-exchanger rig；6th, roots blower；
7th, air-cooled radiator；8th, precise filtering device；9th, gas and water separator.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is further elucidated, it should be understood that following specific embodiments are only
For illustrating the present invention rather than limiting the scope of the present invention.It should be noted that word " front " following used in description,
" afterwards ", "left", "right", "up" and "down" refer to the direction in accompanying drawing, and word " interior " and " outward " refer respectively to direction or remote
From the direction of particular elements geometric center.
Embodiment 1
In the present embodiment, at least comprise the steps：
A, desulfurizer desulfurization will be passed through from the landfill gas of refuse landfill, the waste water of generation enters drainage arrangement；
B, the landfill gas after desulfurization are sent into into desilication device desiliconization, the waste water of generation enters drainage arrangement；
C, dehydration：By the landfill gas Jing primarily efficient filter device after desiliconization, then institute is tentatively removed through heat-exchanger rig aqueous
Divide, then gas and water separator removes liquid phase, the waste water of generation enters drainage arrangement；
D, dehydration after landfill gas Jing roots blower negative pressure extracting, after through air-cooled radiator radiating, precise filtering device
The removal of impurity is further gone so as to obtain the landfill gas that preliminary treatment is finished.
Embodiment 2
In the present embodiment, landfill gas preprocess method, its equipment includes drainage arrangement, desulfurizer, just desilication device, effect
Filter, heat-exchanger rig, roots blower, air-cooled radiator, precise filtering device, gas and water separator, wherein desulfurizer
Each unit include one with mist eliminator gas-liquid separator and a tourie；Inlet tube is housed on gas-liquid separator
Line, connection unstripped gas pond, gas-liquid separator bottom is provided with discharging tube, and the bottom of gas-liquid separator is provided with mudhole, and mudhole leads to
Piping is communicated to drainage arrangement, the outlet line connection primarily efficient filter device of the tourie equipped with absorbing medium；Absorbing medium
It is desulfurization absorbing medium in desulfurizer.
Embodiment 3
In the present embodiment, landfill gas preprocess method, its equipment includes drainage arrangement, desulfurizer, just desilication device, effect
Filter, heat-exchanger rig, roots blower, air-cooled radiator, precise filtering device, gas and water separator, wherein desilication device
Each unit include one with mist eliminator gas-liquid separator and a tourie；Inlet tube is housed on gas-liquid separator
Line, connection unstripped gas pond, gas-liquid separator bottom is provided with discharging tube, and the bottom of gas-liquid separator is provided with mudhole, and mudhole leads to
Piping is communicated to drainage arrangement, the outlet line connection primarily efficient filter device of the tourie equipped with absorbing medium；Absorbing medium
It is desiliconization absorbing medium in desilication device.
Embodiment 4
As shown in figure 1, in the present embodiment, landfill gas preprocess method, its equipment include drainage arrangement 1, desulfurizer 2,
Desilication device 3, primarily efficient filter device 4, heat-exchanger rig 5, roots blower 6, air-cooled radiator 7, precise filtering device 8, air water point
From device 9, wherein each unit of desulfurizer each includes a gas-liquid separator with mist eliminator and a suction
Closed cans, each unit of desilication device includes a gas-liquid separator with mist eliminator and a tourie；Gas-liquid separation
Suction line is housed, connection unstripped gas pond, gas-liquid separator bottom is provided with discharging tube, and the bottom of gas-liquid separator is provided with row on device
Dirty hole, mudhole is by pipeline communication to drainage arrangement, the outlet line connection primarily efficient filter of the tourie equipped with absorbing medium
Device；Absorbing medium is desulfurization absorbing medium in desulfurizer；Absorbing medium is desiliconization absorbing medium in desilication device.
From the landfill gas of landfill yard, through the desulfurization of desulfurizer 2, (digester of two parallel connections is removed in landfill gas
Hydrogen sulfide (containing severe toxicity, town B-grade Natural gas standard need to be removed to)) desiliconization (desiliconization of two parallel connections of desilication device 3 is entered afterwards
Tank, removes the silicon and other impurities in landfill gas), then Jing primarily efficient filters device 4 removes chalk dust removing or fine particle, then first changing
The tentatively removing moisture of thermal 5 removes steam with gas and water separator 9 again, then by the negative pressure extracting of roots blower 6, and after Jing
Cross that air-cooled radiator 7 radiates, precise filtering device 8 further goes the removal of impurity so as to obtain the landfill gas that preliminary treatment is finished.
Distinguish with examples detailed above, desulfurizer includes at least two desulfurization units.
Distinguish with examples detailed above, desilication device includes at least two desiliconization units.
Distinguish with examples detailed above, desulfurizer includes at least two desulfurization units and desilication device includes at least two
Individual desiliconization unit.
Distinguish with examples detailed above, when desulfurizer includes at least two desulfurization units, in desulfurizer at least two
It is arranged in parallel between individual desulfurization unit.
Distinguish with examples detailed above, when desilication device includes at least two desiliconization units, in desilication device at least two
It is arranged in parallel between individual desiliconization unit.
Distinguish with examples detailed above, desulfurizer includes at least two desulfurization units and desilication device includes at least two
During individual desiliconization unit, it is arranged in parallel between at least two desulfurization units in desulfurizer and in desilication device at least two
It is arranged in parallel between desiliconization unit.
Distinguish with examples detailed above, when desulfurizer includes at least two desulfurization units, in desulfurizer at least two
It is arranged in series between individual desulfurization unit.
Distinguish with examples detailed above, when desilication device includes at least two desiliconization units, in desilication device at least two
It is arranged in series between individual desiliconization unit.
Distinguish with examples detailed above, desulfurizer includes at least two desulfurization units and desilication device includes at least two
During individual desiliconization unit, it is arranged in series between at least two desulfurization units in desulfurizer and in desilication device at least two
It is arranged in series between desiliconization unit.
Distinguish with examples detailed above, roots blower operationally adopts negative pressure extracting.
Distinguish with examples detailed above, be additionally provided with froth breaking plate on the gas-liquid interface of separator.
Distinguish with examples detailed above, froth breaking plate includes rigid core and the foaming structure being coated on the outside of core.
Distinguish with examples detailed above, the core of froth breaking plate is irony.
Distinguish with examples detailed above, core surface also has the orientation texture for protruding its surface.
Distinguish with examples detailed above, the length of projection is that (length of projection can also be to include to 0.01mm
And it is arbitrary in being not limited to be exemplified below：0.02、0.03、0.014、0.016、0.017、0.019、0.022、0.023、0.025、
0.027th, other arbitrary values in the range of 0.028,0.029 and 0.01-0.03mm).
Distinguish with above-described embodiment, the oriented fibrous structure of fiber reinforcement transition structure (i.e. projection) is orientation
Iron amalgam.
Distinguish with above-described embodiment, the oriented fibrous structure of fiber reinforcement transition structure is the iron amalgam of orientation.
Distinguish with above-described embodiment, the oriented fibrous structure of fiber reinforcement transition structure is the iron amalgam of orientation, is taken
It is perpendicular to silastic surface to direction.
Distinguish with above-described embodiment, the oriented fibrous structure of fiber reinforcement transition structure is the iron amalgam of orientation, is taken
It is to incline with silastic surface to direction.
Distinguish with above-described embodiment, the oriented fibrous structure of fiber reinforcement transition structure is the iron amalgam of orientation, is taken
It is to incline with silastic surface to direction, its angle of inclination is 30 degree, and (angle of inclination can also be to include, without being limited to following
It is arbitrary in act：31st, 32,33,34,35,36,37,38,39,40,41,42,43,44,45 and 30-45 degree in the range of its
Its arbitrary value).The interior iron amalgam of the range of tilt angles cause the binding ability between silicon rubber and composite protection layer and its
The effect for obtaining strengthening 30-50% is compared in his direction when being orientated, this be make use of pinning and inclination angle it is chimeric between coordinate and obtain
's.
Embodiment 5
In the present embodiment, preprocess method has the structure of embodiment 3, and froth breaking plate includes rigid core and is coated on
Foaming structure on the outside of core is foamed silastic material, and the silicon rubber is, wt%：Silicone oil 0.153%, hydroxy silicon oil
3.05%th, methyl vinyl silicon kautschuk 1.27%, mica powder 12.37%, pyrolytic silicon dioxide 33.6%, carbon fiber
0.375%th, balance of Methyl-ethylenvinyl gum and inevitable impurity, it is 35.5 that core surface is formed with orientation angle of inclination
The iron amalgam of degree length 0.0173mm.Landfill gas are pre-processed by the present embodiment product in Ningbo periphery refuse landfill, if
Standby continuous operation 100,000 hours, without apparent damage, sulphur, silicone content are respectively less than in gas after process on equipment each several part equal surface
2ppm, while bubble storage is less than 3% in separator, froth breaking plate is damaged without obvious crackle.
Embodiment 6
In the present embodiment, preprocess method has the structure of embodiment 3, and froth breaking plate includes rigid core and is coated on
It is 2.75 microns by the painting formed after the coated drying of caoutchouc latex liquid that foaming structure on the outside of core is 3 layers of gross thickness
Layer, core surface is plane.Landfill gas are pre-processed by the present embodiment product in Guangzhou periphery refuse landfill, and equipment connects
Reforwarding row 80,000 hours, without apparent damage, sulphur, silicone content are respectively less than 5ppm in gas after process on equipment each several part equal surface, while
Bubble storage is less than 5% in separator, and froth breaking plate is damaged without obvious crackle.
This place embodiment is in place of the claimed non-limit of technical scope midrange and in embodiment technology
The equal replacement of single or multiple technical characteristics is formed new technical scheme in scheme, equally all in application claims
In the range of protection；Simultaneously the present invention program it is all enumerate or unrequited embodiment in, in the same embodiment each
Parameter is merely representative of an example (i.e. a kind of feasible scheme) of its technical scheme, and does not exist between parameters strict
Cooperation and qualified relation, wherein each parameter can be replaced mutually when stating without prejudice to axiom and the present invention and asking, special declaration
Except.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned technological means, also includes
Constituted technical scheme is combined by above technical characteristic.The above is the specific embodiment of the present invention, should be referred to
Go out, for those skilled in the art, under the premise without departing from the principles of the invention, can also make some
Improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of landfill gas preprocess method, it is characterised in that at least comprise the steps：
A, desulfurizer desulfurization will be passed through from the landfill gas of refuse landfill, the waste water of generation enters drainage arrangement；
B, the landfill gas after desulfurization are sent into into desilication device desiliconization, the waste water of generation enters drainage arrangement；
C, dehydration：By the landfill gas Jing primarily efficient filter device after desiliconization, then contained humidity is tentatively removed through heat-exchanger rig, then
Gas and water separator removes liquid phase, and the waste water of generation enters drainage arrangement；
D, dehydration after landfill gas Jing roots blower negative pressure extracting, after through air-cooled radiator radiating, precise filtering device enter one
Step goes the removal of impurity so as to obtain the landfill gas that preliminary treatment is finished.
2. landfill gas preprocess method according to claim 1, it is characterised in that the desulfurizer and/or desiliconization are filled
Each unit put includes a gas-liquid separator with mist eliminator and a tourie；Entrance is housed on gas-liquid separator
Pipeline, connection unstripped gas pond, gas-liquid separator bottom is provided with discharging tube, and the bottom of gas-liquid separator is provided with mudhole, mudhole
By pipeline communication to drainage arrangement, the outlet line connection primarily efficient filter device of the tourie equipped with absorbing medium；The suction
It is desulfurization absorbing medium or desiliconization absorbing medium when receiving medium correspondence desulfurizer or desilication device.
3. landfill gas preprocess method according to claim 2, it is characterised in that the desulfurizer and/or desiliconization are filled
Put and each include at least two desulfurization units or at least two desiliconization units.
4. landfill gas preprocess method according to claim 3, it is characterised in that the desulfurizer and/or desiliconization are filled
Be arranged in parallel between at least two desulfurization units put or at least two desiliconization units between be arranged in parallel.
5. landfill gas preprocess method according to claim 3, it is characterised in that the desulfurizer and/or desiliconization are filled
Be arranged in series between at least two desulfurization units put or at least two desiliconization units between be arranged in series.
6. landfill gas preprocess method according to claim 1, it is characterised in that the roots blower is operationally adopted
Negative pressure extracting.
7. landfill gas preprocess method according to claim 1, it is characterised in that on the gas-liquid interface of the separator
It is additionally provided with froth breaking plate.
8. landfill gas preprocess method according to claim 7, it is characterised in that the froth breaking plate includes rigid core
With the foaming structure being coated on the outside of core.
9. landfill gas preprocess method according to claim 8, it is characterised in that the core of the froth breaking plate is irony.
10. according to the arbitrary described landfill gas preprocess method of claim 1,7-9, it is characterised in that the froth breaking plate is served as reasons
The Slab element of fritter is closed through chain and formed.
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| CN201611232664.6A CN106635212A (en) | 2016-12-28 | 2016-12-28 | Pretreatment method of landfill gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611232664.6A CN106635212A (en) | 2016-12-28 | 2016-12-28 | Pretreatment method of landfill gas |
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| CN201611232664.6A Pending CN106635212A (en) | 2016-12-28 | 2016-12-28 | Pretreatment method of landfill gas |
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| CN111569542A (en) * | 2020-05-18 | 2020-08-25 | 新沂百川畅银新能源有限公司 | Pretreatment device and treatment method for landfill gas |
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