CN103290061A - Method for converting agricultural solid waste into vehicle gas - Google Patents
Method for converting agricultural solid waste into vehicle gas Download PDFInfo
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- CN103290061A CN103290061A CN2013102268180A CN201310226818A CN103290061A CN 103290061 A CN103290061 A CN 103290061A CN 2013102268180 A CN2013102268180 A CN 2013102268180A CN 201310226818 A CN201310226818 A CN 201310226818A CN 103290061 A CN103290061 A CN 103290061A
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- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention relates to a method for converting agricultural solid wastes into vehicle gas. The invention uses various agricultural solid wastes (such as xylose dregs, bagasse, corn straw, corn cob, agricultural product processing refuse and the like) and adopts digital control ultrasonic vapor explosion pretreatment technique, digital control high-efficiency two-phase moderate temperature anaerobic fermentation technique, digital control total system zero drainage technique, digital control pure physical partial pressure decarburization purification technique, and digital control hydraulic rodless marsh gas compressed storage and transportation system as well as integrated equipment to implement continuous balanced production of biomass gas (B-CNG); the main component methane content in the biomass gas is greater than or equal to 93%; and thus, the biomass gas can be used as a fuel for gas vehicles.
Description
Technical field
The present invention relates to the method that a kind of agricultural solid residue transforms vehicle fuel.
Background technology
Soar at current international oil price, the severe situation of China's hydrocarbon resources shortage, this project utilizes various industry solid waste (as xylose residue, bagasse, maize straw, corn cob, processing of farm products rubbish etc.), by using numerical control supersonic speed steam explosion preconditioning technique, numerical control efficient two-phase anaeration in normal temperature fermentation technique, numerical control total system zero-emission water technology, the pure physics dividing potential drop of numerical control decarburization purification techniques, numerical control hydraulic does not have five big gordian techniquies and equipment integration innovations such as rod-type biogas compressing, stalling and transporting system, realize balanced production biomass vehicle fuels (B-CNG) continuously, main component methane content 〉=95% wherein, alternative gasoline steam supply car travels.
Nineteen twenty-eight American scholar W.H.Muson proposes the processing of farm products solid waste is entered efficient anaerobic fermentation by the quick-fried liquid state that is decomposed into of vapour.Do not meet the quick-fried equipment of pseudo-vapour of quick-fried physical conception but only occurred some so far in the world, the inreal quick-fried equipment of vapour of realizing the W.H.Muson imagination.Be defined as during when outburst speed supersonic speed quick-friedly at physics circle, it is quick-fried in business circles outburst speed to be called vapour greater than spurting of velocity of sound hundred times.Temperature about quick-fried preceding 260 degree can be reduced to room temperature in 0.00875 second after real vapour is quick-fried, finish the acting of expanding, with agricultural solid residue inner cellulose, hemicellulose, lignin separation, for anaerobically fermenting provides basic ambient condition.And the heat that the has technology of spurting is spurted at material and is not realized temperature decrease after finishing, and boils its food of back still near 100 degree as pressure-cooking food, only is to have finished the process of boiling." the quick-fried retort of bilateral air agreement quick operating valve vapour " with the Chen Hong Zhang Faming of process institute of the Chinese Academy of Sciences is representative at home, it is a kind of by manually adding material, the hot spraying tank of interrupter duty, the whole process of spurting changes according to pressure height, single tank volume size, finishes to spurting about 10S greatly.And the quick-fried equipment of real vapour its produce time and tank volume, operating pressure is irrelevant.The popular explosion time of saying grenade is consistent with the explosion time of cookle, should not change explosion time because of the size of quick-fried body.Because prior art can not realize that real vapour is quick-fried, lack engineering thermodynamics adiabatic expansion acting basic condition, so agricultural solid residue can't be liquefied, enter anaerobically fermenting.
Another kind of foreign technology is the quick-fried reactor of continous way vapour that Canadian Stake Tecnnology company produces, and has multinomial patent.The spraying device that this technology is equipped with valve with paper industry continuous steamer and bottom is combined, and its pan feeding partly adopts the imperial formula grass of hinge plug sealing principle, and material is compressed into Steam explosive machine continuously from normal atmosphere.Cut with scissors imperial driving power 200KW.Because power consumption is huge and pan feeding cuts with scissors dragon because serious with the contact wear of material high pressure, general continuous one week of production is just changed, the every expensive about 30,000 yuan/root of hinge dragon employing special alloy manufacturing price.Because so material " quick-fried " go out after, do not possess cooling feature, equally be not a kind of real vapour quick-fried equipment greater than hundred times of velocities of sound high pressure time of releasing of its material.All do not have agricultural solid residue by the quick-fried pre-processing device that makes its hydrolysis of pure physics vapour both at home and abroad at present.
The solid shape waste two phase process anaerobic fermentation technology of agricultural is representative with Capital Normal University " two step of solid waste (phase) fermentation method ".Its process is carried out acidifying for solids being placed in the spray Solid Bed earlier, and the acid solution that drip washing goes out enters the methanation fermentation container and produces biogas.Utilize the water outlet recirculation spray Solid Bed of methanation UASB, Solid Bed namely changes over to behind one section acidogenic fermentation automatically does fermentation and generation biogas.Its final product is biogas and solid organic fertilizer, and does not have unnecessary sewage to produce.But because its pan feeding of prior art and discharging are manual operation, do not have advanced automatic equipment guarantee, the factor of created gase fluctuation is bigger, can not realize the automatical and efficient production of extensive continous-stable.
Agricultural solid residue is after anaerobically fermenting gas processing biogas output, and utilisation technology all is with the removal of the CO2 in the biogas rather than to be used after low-cost separation, the low-cost liquefaction at present.What extensively adopt at present is the G-V method of steam regeneration, air regenesis G-V method, ammoniacal liquor method etc.They all without exception be that cost is separated CO2 from biogas with highly energy-consuming, consumptive material, discharged to the topsoil environment, and increase Greenhouse effect.
Being with the biogas behind separation of C O2 and the H2S aspect the high-value-use, methane content is increased to more than 95%, be compressed to 25Mpa and reach national CNG standard and enter vehicular energy.But be used at present that CH4 compressor cost is high, power consumption is excessive can not support the biogas high-value-use.For example its cost of the compressor of domestic famous manufacturer production is all 1,000,000 and more than the power consumption 300KW.
Summary of the invention
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: utilize the various processing of farm products solid waste that in the past are difficult for utilizing (to comprise xylose residue, bagasse, maize straw, corn cob, rotten agricultural-food, processing of farm products rubbish etc.), by using numerical control supersonic speed steam explosion preconditioning technique, numerical control efficient two-phase anaeration in normal temperature fermentation technique, numerical control total system zero-emission water technology, the pure physics dividing potential drop of numerical control decarburization purification techniques, numerical control hydraulic does not have five big gordian techniquies and equipment integration innovations such as rod-type biogas compressing, stalling and transporting system, realize balanced production biomass Sweet natural gases (B-CNG), wherein main component methane content 〉=95% continuously.Realize supersonic speed explosion velocity and the serialization production technology of the quick-fried equipment of vapour, each logistics numerically controlled automatic turnover in the diphasic anaerobic fermentation system realizes in pure physics dividing potential drop mode that methane and carbonic acid gas are high-purity and separates that it is integrated that no rod-type compressor is finished the gas compression storage.
Comparison with similar engineering: the present invention has realized the efficient processing to solid waste, has greatly expanded the process range of processing of farm products waste, makes the solid processing of farm products waste that accounts for most ratios obtain transforming and high-value-use; Compare with conventional stalk class fermentation technique, because the utilization of the quick-fried preconditioning technique of vapour has been established basis efficiently for the two phase process fermentation, realized the breakthrough of the fermentation efficiency order of magnitude, solid materials turnover simultaneously realizes serialization, automatization; Compare with processing of farm products waste normal temperature fermentation technology, adopt the advanced integrated insulation design in fermentation tank field, greatly reducing Lou, hot side amasss, realized the annual production continuously of middle temperature constant temperature anaerobically fermenting with lower energy consumption, make fermentation efficiency high and stablize, make biogas production become a kind of Industrial processes of annual steady and continuousization; Compare with general biogas purification techniques, the thinking of separating has been taked in decarburization for biogas, has increased the income of carbon dioxide by-product under the prerequisite that does not increase running cost, makes the comprehensive benefit of biogas improve 40%.In addition, the two-phase fermentation also makes the solid slag composition of generation single, can be used for industrial use widely, and has further improved the whole level of profitability of project; Compare with general biogas compressing, stalling and transporting technology, no longer adopt the normal reciprocating compressor, oil lubrication and separating of oil contradiction had both been avoided, make the compression process of gas more level off to reversible compression process again, make gas be down to minimum because of the interior energy increase that compression causes, guarantee the realization of physics dividing potential drop process, avoided huge heat-removal system, saved the compression energy consumption; Compare with general biogas high-value-use technology, this project takes to utilize commercial CNG circulation sale system schema, make combustion gas production process and technical indicator all meet the technological standard of present national compressed natural gas used as vehicle fuel, in conjunction with current domestic Sweet natural gas vehicle CNG situation in short supply particularly, the commercial operation risk of this project is greatly reduced.
The present invention is by using the quick-fried technology of supersonic speed vapour; do not add any chemical agent; externally do not discharge any waste water,waste gas and industrial residue, efficiently solve the quick hydrolysis problem of Mierocrystalline cellulose, hemicellulose, for the mass-producing engineering construction of this project research has been laid solid foundation.Because the fuel that biomass are produced belongs in the atmosphere nature carbon cycle scope, atmosphere is not produced new carbon emission, helps to reduce the environmental pressure that increases the weight of day by day that the alleviation fossil oil causes.At present, China pays much attention to renewable energy source development, can be that the renewable energy source of representative is rapidly developed in China power generation energy resource field with wind energy, sun power, water.But at mobile energy field, be that the biomass energy of representative is gone no further because of the cost threshold always with cellulosic ethanol, biodiesel technology.This project technical study is in case ripe the popularization with solving the serious day by day sharp contradiction of China's vehicle guaranteeding organic quantity sustainable growth and city tail gas pollution, makes renewable energy source enter mobile energy field sooner.
Embodiment
Below will be described in detail the preferred embodiments of the present invention; Should be appreciated that preferred embodiment only for the present invention is described, rather than in order to limit protection scope of the present invention.
A kind of agricultural solid residue transforms the method for vehicle fuel, utilize the processing of farm products solid waste, by using numerical control supersonic speed steam explosion preconditioning technique, numerical control efficient two-phase anaeration in normal temperature fermentation technique, numerical control total system zero-emission water technology, the pure physics dividing potential drop of numerical control decarburization purification techniques, numerical control hydraulic not to have rod-type biogas compressing, stalling and transporting system five big gordian techniquies and equipment integration innovation, realize balanced production biomass Sweet natural gases (B-CNG), wherein main component methane content 〉=95% continuously.After finishing the quick-fried pre-treatment of supersonic speed vapour, make the pulp of solid biomass outward appearance, micro-cell organize quick-fried broken target to be achieved, for efficient diphasic anaerobic fermentation provides prerequisite.
As further preferred, the processing of farm products solid waste comprises xylose residue, bagasse, maize straw, corn cob, rotten agricultural-food, processing of farm products rubbish.
As further preferred, each logistics numerically controlled automatic turnover technology in the diphasic anaerobic fermentation system realizes in pure physics dividing potential drop mode that methane and carbonic acid gas are high-purity and separates that it is integrated that no rod-type compressor is finished the gas compression storage.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention with preferred embodiment openly as above, yet, be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, be the content that does not break away from technical solution of the present invention in every case, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification all belong in the scope of technical solution of the present invention.
Claims (3)
1. an agricultural solid residue transforms the method for vehicle fuel, utilize the processing of farm products solid waste, by using numerical control supersonic speed steam explosion preconditioning technique, numerical control efficient two-phase anaeration in normal temperature fermentation technique, numerical control total system zero-emission water technology, the pure physics dividing potential drop of numerical control decarburization purification techniques, numerical control hydraulic not to have rod-type biogas compressing, stalling and transporting system five big gordian techniquies and equipment integration innovation, realize balanced production biomass Sweet natural gases (B-CNG), wherein main component methane content 〉=95% continuously.
2. a kind of agricultural solid residue transforms the method for vehicle fuel according to claim 1, it is characterized in that the processing of farm products solid waste comprises xylose residue, bagasse, maize straw, corn cob, rotten agricultural-food, processing of farm products rubbish.
3. a kind of agricultural solid residue transforms the method for vehicle fuel according to claim 1, it is characterized in that, each logistics numerically controlled automatic turnover technology in the diphasic anaerobic fermentation system, realize in pure physics dividing potential drop mode that methane and carbonic acid gas are high-purity and separate that no rod-type compressor is finished gas compression and stored integrated.
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| CN2013102268180A CN103290061A (en) | 2013-05-29 | 2013-05-29 | Method for converting agricultural solid waste into vehicle gas |
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| CN2013102268180A CN103290061A (en) | 2013-05-29 | 2013-05-29 | Method for converting agricultural solid waste into vehicle gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103740766A (en) * | 2014-01-09 | 2014-04-23 | 太仓市金诸农业发展有限公司 | Fuel additive for biogas power generation |
| CN105800889A (en) * | 2016-04-28 | 2016-07-27 | 农业部沼气科学研究所 | Method for producing methane by strengthening anaerobic dry fermentation of dehydrated sludge |
| CN106978448A (en) * | 2017-03-22 | 2017-07-25 | 中溶科技股份有限公司 | A kind of method and system of xylose residue efficient anaerobic producing methane |
-
2013
- 2013-05-29 CN CN2013102268180A patent/CN103290061A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 李鲁予等: "农业固体废弃物转化为车用燃气（B-CNG）技术研究", 《科技创新导报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103740766A (en) * | 2014-01-09 | 2014-04-23 | 太仓市金诸农业发展有限公司 | Fuel additive for biogas power generation |
| CN105800889A (en) * | 2016-04-28 | 2016-07-27 | 农业部沼气科学研究所 | Method for producing methane by strengthening anaerobic dry fermentation of dehydrated sludge |
| CN105800889B (en) * | 2016-04-28 | 2019-05-10 | 农业部沼气科学研究所 | A method of strengthening dewatered sludge anaerobic dry fermentation methane phase |
| CN106978448A (en) * | 2017-03-22 | 2017-07-25 | 中溶科技股份有限公司 | A kind of method and system of xylose residue efficient anaerobic producing methane |
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Application publication date: 20130911 |