CN101691537A - Integrated processing method for byproducts in lignocellulose-refining fuel ethanol - Google Patents
Integrated processing method for byproducts in lignocellulose-refining fuel ethanol Download PDFInfo
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- CN101691537A CN101691537A CN200910196584A CN200910196584A CN101691537A CN 101691537 A CN101691537 A CN 101691537A CN 200910196584 A CN200910196584 A CN 200910196584A CN 200910196584 A CN200910196584 A CN 200910196584A CN 101691537 A CN101691537 A CN 101691537A
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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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
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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Abstract
The invention relates to an integrated processing method for byproducts in lignocellulose-refining fuel ethanol. The main content of the method is to develop and utilize CO2, lignin, pretreatment waste liquid, alcohol yeast and alcohol waste liquor which are byproducts in the process of refining lignocellulose and to recover a small quantity of byproducts during production, namely fusel oil and aldehyde-ester. The treatment of waste gas, waste liquid and waste residue in the process of refining lignocellulose for fuel ethanol is integrated into one symbiotic mode, and the mode also comprises energy integration and water integration. The method has the advantages of utilizing the byproducts produced in every step of production to maximize the utilization value of the byproducts, developing and utilizing the byproducts in environment-protecting low-pollution ways to form a green industry chain in a full sense and effectively matching energy with water from a global view point so as to reduce energy consumption and save water. By implementing the method, the zero emission of waste in the process of refining lignocellulose for fuel ethanol can be achieved, and better economic benefit can be brought to enterprises.
Description
Technical field
The present invention relates to the integrated processing method of the by product in a kind of lignocellulose refining alcohol fuel, belong to Ecological Industrial and systems engineering research field.
Background technology
In recent years, oil crisis has promoted biomass refining alcohol fuel technology to develop fast in countries in the world.But it is all kinds of lignocellulose biomass raw material substitution grain resources production alcohol fuels of representative that the appearance of current crisis in food becomes to making the researchist to develop with the agricultural crop straw again.
Though lignocellulose refining alcohol fuel is beneficial to environment protection; but it is typical commercial run that its processing transforms; if the by product that unreasonable development and use lignocellulose refining alcohol fuel process produces not only can cause serious environmental to destroy, also can cause the wasting of resources.Lignocellulose refining alcohol fuel process can produce by product CO
2, xylogen, pre-treatment waste liquid, distillery yeast, alcohol waste lees solution, also have a spot of potato spirit, aldehydo-ester to produce in addition.These waste gas, waste residue, waste liquid all have very high utility value, these by products of reasonable development and to carry out the integrated and water of the energy of production process integrated be to solve the low important channel of current lignocellulose refining alcohol fuel economic benefit.
Current, the by product in the lignocellulose refining alcohol fuel process utilizes level lower, and main path is that all waste liquids are handled the back discharging in the lump, and waste residue is as fuel, and the development and use of other by product are then considered very few.The subject matter of doing like this is: do not analyze the utility value of each by product of being produced of step of production process, be general all waste liquids are handled together, waste residue handles together, do not realize that like this utility value of by product maximizes; Do not pay attention to by product CO in the production process
2, the development and use of distillery yeast and potato spirit, aldehydo-ester recovery.The potential residual heat resources are not recycled, caused the waste of resource.
Summary of the invention
The objective of the invention is to utilize the defective of approach at the by product in the current lignocellulose refining alcohol fuel process, provide the integrated processing method of the by product in a kind of lignocellulose refining alcohol fuel, to solve the low problem of current lignocellulose refining alcohol fuel economic benefit.
The present invention adopts following technical proposals:
The integrated processing method of the by product in a kind of lignocellulose refining alcohol fuel is characterized in that this method comprises the CO that pre-treatment waste liquid, ethanol fermentation produce
2, xylogen, distillery yeast, alcohol waste lees solution, aldehydo-ester handle and energy is integrated and water is integrated, specific as follows:
A. pre-treatment waste liquid fermentative production single cell protein: contain water-soluble hemicellulose and hydrolysate wood sugar thereof, pectinose in the pre-treatment waste liquid, utilize them to make carbon source, make fermentation strain, the preparation single cell protein with skin shape silk bacterium 851;
B.CO
2Synthetic complete degradable plastic: the CO that ethanol fermentation produces
2Purity is up to 90%, and its purity has reached the requirement of producing degradable plastics; The CO that collection is obtained
2Carry out polymerization and obtain CO
2Multipolymer;
C. xylogen is produced liquid ground film;
D. from the fermenting-ripening wine with dregs, isolate the yeast emulsion, directly as the fodder yeast body;
E. reclaim by product potato spirit and aldehydo-ester in the rectifying;
F. alcohol waste lees solution develops step by step: alcohol waste lees solution is through filtering, and filter residue is used to produce feed, the generating of filtrate fermentation producing methane, and the by product natural pond liquid of marsh gas fermentation processes is used for irrigation, natural pond slag as fertilizer;
G. the integrated approach of energy: alcohol waste lees solution fermentation producing methane, utilizing biogas to generate electricity is system's power supply again; The steam that generating produces is used for steam explosion pre-treatment or ethanol distillation and rectifying; Utilize marsh gas power generation institute heat production water to add hot feed; Utilize the waste heat driving absorptionmachine of rectifying tower cat head that ethanol fermentation liquid is cooled off, distillation stage high temperature distillate is used to add hot feed;
H. the integrated approach of water: the reuse water coolant is used to clean stalk, spice or washing water as water coolant; Collect cleaning stalk water and be back to the cleaning stalk through the simple filtration processing, the waste water of pre-treatment waste liquid manufacture order cell protein process is back to boiler feed water or spice water after the biological advanced treatment of film; The waste heat of marsh gas power generation (hot water) is as spice; Natural pond liquid behind the biogas fermentation is used for agricultural irrigation; The high temperature distillate of still-process discharging is used to add hot feed.
The present invention utilizes approach to compare with existing lignocellulose refining alcohol fuel by product, has following conspicuous substantive distinguishing features and advantage: develop each and go on foot the by product that production process produced, make the utility value maximization of by product; Develop each by product with environmental protection, low pollution channel, form the pollution-free industry chain on the complete meaning.For example, CO
2Make the raw material production degradable plastics, xylogen is made the raw material production mulch film; Considered the utilization step by step of by product, through filtering, filter residue is used as produces feed, the generating of filtrate fermentation producing methane, and biogas fermentation by product natural pond liquid is used for irrigating, the natural pond slag is used as fertilizer as alcohol waste lees solution; From the overall point of view, carry out effective coupling of energy and water, cut down the consumption of energy water saving.By the enforcement of this programme, the process of lignocellulose refining alcohol fuel can not only realize the zero release of refuse can also bringing favorable economic benefit for enterprise.
Description of drawings
Fig. 1 is a lignocellulose refining alcoholic acid fecund product symbiosis pattern.
The energy of Fig. 2 fecund product symbiosis pattern is integrated.
The water of Fig. 3 fecund product symbiosis pattern is integrated.
Concrete implementing method
The invention process is an example to produce 1.5 ten thousand tons fuel ethanol production enterprise per year, and implementing method is referring to Fig. 1,2,3.
The first step: have up to a million tons pre-treatment waste liquid to produce in year approximately.Collect the pre-treatment waste liquid of steam explosion pretreatment stage, utilize it to make carbon source it is squeezed into fermentor tank, make fermentation strain with skin shape silk bacterium 851, the lignocellulose that adopts 75 ℃ of hot water lixiviate steam explosions to cross carries out detoxification, carry out the fermentation of high-density single cell protein with hemicellulose hydrolysate simultaneously, the dry bacterial powder protein content that obtains reaches 46%; Its main technique flow process: steam explosion hemicellulose hydrolysate → repeated fed-batch fermentation → fermented liquid concentrates → spraying drying.In detail production method is with reference to Chen Hongzhang the research of manufacture order cell protein " the hemicellulose steam explosion hydrolyzate continuously ferment ";
Second step: Nian Yueke collects CO
2Nearly ten thousand tons.CO because of the ethanol fermentation generation
2Purity has reached the requirement of producing degradable plastics, collects CO at fermentation stage
2, epoxy compounds and rare earth combination catalyst are joined in the dry in advance autoclave of crossing, feed the CO of 515～610MPa then
2, under 60～80 ℃ of temperature, by regulating the motor mixing speed, behind the reaction 14h, polymerization obtains CO
2Multipolymer; Concrete production technology is with reference to " carbonic acid gas and the epoxy compounds synthesising biological degradative plastics " of Gao Jianping;
The the 3rd: 1.5 ten thousand tons in year recyclable approximately xylogen.From waste dregs liquid, isolate xylogen, in lignin liquor, add a small amount of formaldehyde and make linking agent, add small amount of short or other soluble high-molecular compound again, add some tensio-active agents and pore forming material in addition, the liquid mixture of making like this, be sprayed onto soil surface with atomizer, form the uniform foam of a thick-layer, just form the layer of even mulch film behind the froth breaking at soil surface; Concrete production technology is with reference to Jiang Tingda " xylogen ";
The 4th: year is collected 1000 tons of distillery yeasts approximately.From waste dregs liquid, isolate the yeast emulsion, just can be directly as fodder yeast; Concrete grammar is with reference to Ma Xiaojian " fuel ethanol production and utilisation technology ";
The the 5th: from rectifying tower, separate potato spirit and aldehydo-ester, year 75 tons of recyclable approximately potato spirit, 300 tons of aldehydo-esters.Concrete recovery method is with reference to Ma Xiaojian " fuel ethanol production and utilisation technology ";
The 6th: year produces 220,000 tons of alcohol waste lees solutions approximately.Collect alcohol waste lees solution in the distillation stage,, filtrate is squeezed into fermentor tank carry out biogas fermentation, collect biogas and generate electricity, the filter residue drying just can be made distiller's dried grain feed DDG by filtering; Biogas fermentative liquid is filtered, natural pond liquid is as irrigating again, and the natural pond slag is regulated soil as fertilizer.。Concrete grammar is with reference to Liu Ronghou " reparation technology of alcohol fuel and example ";
The integrated concrete implementing method of energy: alcohol waste lees solution fermentation producing methane, utilize biogas to generate electricity again and be system's power supply; The steam that generating produces is used for steam explosion pre-treatment or ethanol distillation and rectifying; Utilize marsh gas power generation institute heat production water to add hot feed; Utilize the waste heat driving absorptionmachine of rectifying tower cat head that ethanol fermentation liquid is cooled off, distillation stage high temperature distillate is used to add hot feed.Concrete grammar is with reference to Wang Sheng " lithium-bromide absorption-type refrigerating machine and relative merits thereof "
The integrated concrete implementing method of water: the reuse water coolant is used to clean stalk, spice or washing water as water coolant; Collect cleaning stalk water and be back to the cleaning stalk through the simple filtration processing, the waste water of pre-treatment waste liquid manufacture order cell protein process is back to boiler feed water or spice water after the biological advanced treatment of film; The waste heat of marsh gas power generation (hot water) is as spice; Natural pond liquid behind the biogas fermentation is used for agricultural irrigation; The high temperature distillate of still-process discharging is used to add hot feed.
Claims (1)
1. the integrated processing method of the by product in the lignocellulose refining alcohol fuel is characterized in that this method comprises the CO that pre-treatment waste liquid, ethanol fermentation produce
2, xylogen, distillery yeast, alcohol waste lees solution, aldehydo-ester handle and energy is integrated and water is integrated, specific as follows:
A. pre-treatment waste liquid fermentative production single cell protein: contain water-soluble hemicellulose and hydrolysate wood sugar thereof, pectinose in the pre-treatment waste liquid, utilize them to make carbon source, make fermentation strain, the preparation single cell protein with skin shape silk bacterium 851;
B.CO
2Synthetic complete degradable plastic: the CO that ethanol fermentation produces
2Purity is up to 90%, and its purity has reached the requirement of producing degradable plastics; The CO that collection is obtained
2Carry out polymerization and obtain CO
2Multipolymer;
C. xylogen is produced liquid ground film;
D. from the fermenting-ripening wine with dregs, isolate the yeast emulsion, directly as the fodder yeast body;
E. reclaim by product potato spirit and aldehydo-ester in the rectifying;
F. alcohol waste lees solution develops step by step: alcohol waste lees solution is through filtering, and filter residue is used to produce feed, the generating of filtrate fermentation producing methane, and the by product natural pond liquid of marsh gas fermentation processes is used for irrigation, natural pond slag as fertilizer;
G. the integrated approach of energy: alcohol waste lees solution fermentation producing methane, utilizing biogas to generate electricity is system's power supply again; The steam that generating produces is used for steam explosion pre-treatment or ethanol distillation and rectifying; Utilize marsh gas power generation institute heat production water to add hot feed; Utilize the waste heat driving absorptionmachine of rectifying tower cat head that ethanol fermentation liquid is cooled off, distillation stage high temperature distillate is used to add hot feed;
H. the integrated approach of water: the reuse water coolant is used to clean stalk, spice or washing water as water coolant; Collect cleaning stalk water and be back to the cleaning stalk through the simple filtration processing, the waste water of pre-treatment waste liquid manufacture order cell protein process is back to boiler feed water or spice water after the biological advanced treatment of film; The waste heat of marsh gas power generation (hot water) is as spice; Natural pond liquid behind the biogas fermentation is used for agricultural irrigation; The high temperature distillate of still-process discharging is used to add hot feed.
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| CN200910196584A CN101691537A (en) | 2009-09-27 | 2009-09-27 | Integrated processing method for byproducts in lignocellulose-refining fuel ethanol |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503594A (en) * | 2011-10-12 | 2012-06-20 | 马健 | Method for producing high-efficiency organic fertilizer by using wastewater from alcoholic fermentation |
| CN102732565A (en) * | 2012-07-23 | 2012-10-17 | 农业部沼气科学研究所 | Method of producing methane by utilizing straws and waste wine distillation liquor together |
| CN103266141A (en) * | 2013-04-11 | 2013-08-28 | 清华大学 | Ecological method of co-production of fuel ethanol and biogas |
| CN103764851A (en) * | 2011-07-15 | 2014-04-30 | 格林菲尔德专业醇类公司 | Conditioning of biomass for improved C5/ C6 sugar release prior to fermentation |
| CN106107052A (en) * | 2016-07-06 | 2016-11-16 | 无锡市华东电力设备有限公司 | A kind of method utilizing sweet potato fuel alcohol grain slag producing fodder |
| US10202312B2 (en) | 2012-03-05 | 2019-02-12 | Iogen Energy Corporation | Process for producing a fuel from lignocellulosic feedstock |
-
2009
- 2009-09-27 CN CN200910196584A patent/CN101691537A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103764851A (en) * | 2011-07-15 | 2014-04-30 | 格林菲尔德专业醇类公司 | Conditioning of biomass for improved C5/ C6 sugar release prior to fermentation |
| US9150936B2 (en) | 2011-07-15 | 2015-10-06 | Greenfield Specialty Alcohols Inc. | Conditioning of biomass for improved C5/C6 sugar release prior to fermentation |
| CN103764851B (en) * | 2011-07-15 | 2017-03-08 | 格林菲尔德专业醇类公司 | Regulation biomass being carried out for improving C5/C6 sugar release before fermentation |
| CN102503594A (en) * | 2011-10-12 | 2012-06-20 | 马健 | Method for producing high-efficiency organic fertilizer by using wastewater from alcoholic fermentation |
| US10202312B2 (en) | 2012-03-05 | 2019-02-12 | Iogen Energy Corporation | Process for producing a fuel from lignocellulosic feedstock |
| US10766826B2 (en) | 2012-03-05 | 2020-09-08 | Iogen Energy Corporation | Process for producing a fuel from lignocellulosic feedstock |
| CN102732565A (en) * | 2012-07-23 | 2012-10-17 | 农业部沼气科学研究所 | Method of producing methane by utilizing straws and waste wine distillation liquor together |
| CN102732565B (en) * | 2012-07-23 | 2014-12-10 | 农业部沼气科学研究所 | Method of producing methane by utilizing straws and waste wine distillation liquor together |
| CN103266141A (en) * | 2013-04-11 | 2013-08-28 | 清华大学 | Ecological method of co-production of fuel ethanol and biogas |
| CN106107052A (en) * | 2016-07-06 | 2016-11-16 | 无锡市华东电力设备有限公司 | A kind of method utilizing sweet potato fuel alcohol grain slag producing fodder |
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Open date: 20100407 |