CN103923948B - It is a kind of to prepare ethyl alcohol, the co-production of biogas and biodiesel using organic waste - Google Patents
It is a kind of to prepare ethyl alcohol, the co-production of biogas and biodiesel using organic waste Download PDFInfo
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 239000003225 biodiesel Substances 0.000 title claims abstract description 16
- 239000010815 organic waste Substances 0.000 title claims abstract description 12
- 235000019441 ethanol Nutrition 0.000 title claims description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 238000000855 fermentation Methods 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 29
- 229920002678 cellulose Polymers 0.000 claims abstract description 24
- 239000001913 cellulose Substances 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 241000238631 Hexapoda Species 0.000 claims abstract description 18
- 230000004151 fermentation Effects 0.000 claims abstract description 18
- 230000002000 scavenging effect Effects 0.000 claims abstract description 11
- 239000002028 Biomass Substances 0.000 claims abstract description 10
- 235000000346 sugar Nutrition 0.000 claims abstract description 10
- 239000002351 wastewater Substances 0.000 claims abstract description 10
- 230000009466 transformation Effects 0.000 claims abstract description 8
- 210000003608 fece Anatomy 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 7
- 244000144977 poultry Species 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims abstract description 6
- 244000144972 livestock Species 0.000 claims abstract description 5
- 235000014633 carbohydrates Nutrition 0.000 claims abstract description 4
- 150000001720 carbohydrates Chemical class 0.000 claims abstract description 4
- 239000004519 grease Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 15
- 241000195493 Cryptophyta Species 0.000 claims description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 13
- 239000000446 fuel Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000010902 straw Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 229930006000 Sucrose Natural products 0.000 claims description 5
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- 239000005720 sucrose Substances 0.000 claims description 5
- 230000000813 microbial effect Effects 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 4
- 239000002910 solid waste Substances 0.000 claims description 4
- 108010059892 Cellulase Proteins 0.000 claims description 3
- 230000005526 G1 to G0 transition Effects 0.000 claims description 3
- 240000004808 Saccharomyces cerevisiae Species 0.000 claims description 3
- 238000005273 aeration Methods 0.000 claims description 3
- 229940106157 cellulase Drugs 0.000 claims description 3
- 239000002361 compost Substances 0.000 claims description 3
- 230000007062 hydrolysis Effects 0.000 claims description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- 150000002632 lipids Chemical class 0.000 claims description 3
- 239000010808 liquid waste Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000000243 photosynthetic effect Effects 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000003337 fertilizer Substances 0.000 claims 1
- 238000001556 precipitation Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 241000196324 Embryophyta Species 0.000 abstract description 18
- 235000010980 cellulose Nutrition 0.000 abstract description 18
- 229920002472 Starch Polymers 0.000 abstract description 8
- 235000019698 starch Nutrition 0.000 abstract description 8
- 239000008107 starch Substances 0.000 abstract description 8
- 239000003925 fat Substances 0.000 abstract description 6
- 235000019197 fats Nutrition 0.000 abstract description 6
- 230000007071 enzymatic hydrolysis Effects 0.000 abstract description 4
- 238000006047 enzymatic hydrolysis reaction Methods 0.000 abstract description 4
- 244000025254 Cannabis sativa Species 0.000 abstract description 3
- 244000017020 Ipomoea batatas Species 0.000 abstract description 3
- 235000002678 Ipomoea batatas Nutrition 0.000 abstract description 3
- 241000219000 Populus Species 0.000 abstract description 3
- 240000000111 Saccharum officinarum Species 0.000 abstract description 3
- 235000007201 Saccharum officinarum Nutrition 0.000 abstract description 3
- 244000057114 Sapium sebiferum Species 0.000 abstract description 3
- 235000005128 Sapium sebiferum Nutrition 0.000 abstract description 3
- KDRIEERWEFJUSB-UHFFFAOYSA-N carbon dioxide;methane Chemical compound C.O=C=O KDRIEERWEFJUSB-UHFFFAOYSA-N 0.000 abstract description 3
- 239000012978 lignocellulosic material Substances 0.000 abstract 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 14
- 238000011161 development Methods 0.000 description 8
- 239000002699 waste material Substances 0.000 description 8
- 239000001569 carbon dioxide Substances 0.000 description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 239000003895 organic fertilizer Substances 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- -1 sugar grass Chemical class 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 235000009754 Vitis X bourquina Nutrition 0.000 description 1
- 235000012333 Vitis X labruscana Nutrition 0.000 description 1
- 240000006365 Vitis vinifera Species 0.000 description 1
- 235000014787 Vitis vinifera Nutrition 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 239000012075 bio-oil Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000011514 vinification Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- 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
- Y02P20/133—Renewable energy sources, e.g. sunlight
-
- 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
Landscapes
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
It is the bioenergies such as raw material co-producing ethanol, biodiesel and biogas the present invention provides a kind of organic waste.Method provided by the invention through the following steps that realize: by lignocellulosic material pretreatment carry out enzymatic hydrolysis produce sugar, after alcohol fermentation, pass through anaerobic fermentation Biogas by adding feces of livestock and poultry to enzymatic hydrolysis residue, biogas residue passes through scavenging Insect transformation, organic wastewater is used as culture microalgae, and insect and microalgae are used to prepare biodiesel.Energy-source plant trans-utilization system, it collects the solids such as spent process water and biogas slurry, exhaust gas, biogas residue and separates and be enriched with process of methane carbon dioxide, for cultivating sugar grass, sugarcane etc. containing carbohydrate, and the starch-containing class such as purple sweet potato, the containing celluloses class such as poplar, the energy-source plants containing grease type such as Chinese tallow tree, biomass caused by these energy-source plants can be used to extract sugar source, starch, fat and cellulose again and be used to produce bioenergy.
Description
Technical field
The invention belongs to bioenergy preparation technical fields, and in particular to a kind of to prepare biological second using organic waste
The method of alcohol, biogas and biodiesel.
Background technique
China has currently achieved significant achievement in the development of biomass energy source domain, but quick with national economy
Development, the raising of people's living standard, China also proposed more energy demand also sharp increase to living environment
High request.The huge size of population determines that China cannot walk identical route in the development of bioenergy with developed country.
In view of the distinctive national conditions in China, the new raw material source of biomass energy is actively expanded, accelerates the utilization of abandoned biomass resource,
Organic Waste Water Treatment is combined with productions such as the bioenergies such as bio-ethanol, biogas and biodiesel, becomes useless
For treasured, to solve the serious resource that China faces at present, energy and environment crisis provides a practicable technology wound
Variation route, new thinking will be provided for China's sustainable economic development by granting popularization in fact, have extremely far-reaching society, economy
With environmental benefit.
Countries in the world today country payes attention to oil replacement, develops the research of bioenergy.Bioenergy is that have with agricultural etc.
Machine waste and a kind of emerging energy for carrying out production of energy for primary raw material using the energy-source plant that marginal land is planted.It is raw
The 75% of object energy cost is cost of material, and the bottlenecks of bioenergy are raw material sources and raw material guarantee, in China, because
The national conditions such as population, soil, grain, environment reality, raw material are more obvious to the restrictive function of Bioenergy development.Chinese biological energy
Source faces many difficulties and problems, and raw material resources shortage limits the large-scale production of bioenergy since grain resource is insufficient
It restricts, expands large-scale resources supplIes, biomass fuel again currently, not having using grain as the production of the biomass fuel of raw material
It is (Wang Ou an important factor for restricting biomass fuel large-scale development that resource, which is not implemented,.Chinese biological energy exploitation and application status
And development policies and future trend.Wine-making grape.2007.07.10-15).
Patent 201110052388 discloses a kind of using cellulose ethanol byproduct as the method for main material production biogas, benefit
It is primary raw material with cellulose ethanol production byproduct, using starch ethanol grain liquid as auxiliary material fermentation and biogas production.
It using soybean stalk is primary raw material that the CN200910217451.X present invention, which is a kind of, is mentioned by pretreatment of raw material, lignin
It takes, enzymatic saccharification fermentation preparing fuel ethanol, the main processes such as anaerobic ferment for methane, industrialized production alcohol fuel, wood
The method of comprehensive utilization of quality and biogas.Also the technical report of biogas and biological organic fertilizer integrated production system is related to, but
It is not produce sugar about carrying out enzymatic hydrolysis using crops stalks stalk pretreatment, after alcohol fermentation, by enzymatic hydrolysis residue addition poultry
Poultry manure is by anaerobic fermentation Biogas, and by scavenging Insect transformation, insect fat is used to prepare biodiesel biogas residue, has
Machine waste water is used as culture microalgae, does biodiesel, and the polypide extracted after fat may be used as protein feed, remaining residue
It can be used as organic fertilizer.
Summary of the invention
Present invention aims to overcome that defect of the existing technology, develops a kind of biological second of utilization organic waste preparation
The method of the method for alcohol, biogas and biodiesel, and organic wastewater caused by system production process is fully utilized, Gu
The wastes such as body waste and carbon dioxide reduce production cost to improve the transformation efficiency of bioenergy, realize bioenergy
Green preparation.The bioenergy method for combined use is divided into raw material and collects feed system, biochemical compound conversion system, conversion and cycle
It using multiple relatively independent systems such as system and product function system, interconnects each other, the waste liquid that system generates
Equal pollutants are all converted and are utilized in internal system.
What the present invention was achieved through the following technical solutions: straw lignocellulose is the portion that raw material produces alcohol fuel
Point, the unit is the following steps are included: (1) stalk is crushed: being crushed to straw lignocellulose, is crushed to 20 meshes；
And to stalk powder be added 1.0% NaOH solution；(2) it is saccharified by cellulose hydrolyzation, the straw powder made from step (1)
Cellulase is added in end, in 40 DEG C, under the conditions of pH is 4.5, stirring hydrolysis 48h obtains cellulose hydrolyzation saccharification liquid；
(3) temperature of cellulose hydrolyzation saccharification liquid is down to 35 DEG C in the fermenter by alcohol fermentation, and yeast 2g/L is added, and is carried out
Ferment at constant temperature reaction can obtain alcohol fuel.Biogas anaerobic fermentation part the following steps are included: (4) to (3) cellulose ethanol waste liquid
Carry out flocculation sedimentation processing；(5) substrate of anaerobic fermentation is mixed, is put into anaerobic fermentation pond, and by the way that feces of livestock and poultry is added
It is (20-30): 1, pH value 6.5-7.5 to adjust carbon, the nitrogen ratio of substrate, temperature is 30-35 DEG C, and anaerobic fermentation generates biogas；
(6) to being separated by solid-liquid separation after anaerobic fermentation；(7) biogas mixed gas carries out carbon dioxide separation and purifying；Scavenging elder brother
Worm converting wastes part: (8) obtain accessing scavenging insect in biogas residue to (6), cultivate 5-10 days at normal temperature, isolated
Insect body；Microbial oil bioreactor transform portion: (9) are pre- by biogas slurry remaining after fermentation and (1) and (3) process
Processing obtains sucrose-containing wastewater, then passes in bioreactor, the culture solution as culture algae；Control bioreactor temperature
18-25 DEG C is spent, the pH value of culture solution is 6.5-7.5 in bioreactor；(10) biogas for generating anaerobic fermentation is as algae
The carbon source of class breeding, is continuously passed into the bottom of bioreactor, by photosynthetic algae by aeration sand head
Carbon dioxide in biogas (7) is absorbed, the high-quality methane of purification is finally obtained；(11) in bioreactor, in algae
Class breeding reaches growth latter stage stationary phase, its part is harvested, and is mixed for extracting preparing biodiesel from lipid with (8)；
(12) remaining cellulose family residue may be added to (1) or (5) as one of raw material of cellulose ethanol or biogas and be sent into anaerobism hair
Ferment pond；(13) the biogas residue compost that anaerobic fermentation process (6) generates；Energy-source plant trans-utilization system collects spent process water and natural pond
The solids such as liquid, exhaust gas, biogas residue and separation and enrichment process of methane carbon dioxide, for cultivating the energy containing carbohydrate such as sugar grass, sugarcane
The starch-containing class energy-source plants such as source plant, and culture purple sweet potato, the containing celluloses class energy-source plant such as plantation poplar, plant Chinese tallow tree
Deng energy-source plant containing grease type, biomass caused by these energy-source plants can be used to extract sugar source, starch, fat and fibre again
Dimension element is used to produce bioenergy.In addition insect body albumen and organic fertilizer are obtained.
This project is intended to research and develop one kind with organic wastes such as lignocellulosic, feces of livestock and poultry, castoff of food and drink and waste water
Gurry be raw material co-producing bio ethyl alcohol, the method for biogas and biodiesel, using composite technology realize organic waste to
The conversion of bioenergy.The invention belongs to resource circulation utilization technical fields, and in particular to a kind of to utilize various organic wastes
The method that resourcable transformation prepares bio-ethanol, biogas and biodiesel.The present invention using microorganism, scavenging insect with
And the industrial chain bioconversion reactor of algae building converts stalk fibrid element, feces of livestock and poultry and its solid and liquid waste
Object carrys out the carbon dioxide in purifying marsh gas especially with microalgae, to obtain high-quality methane；Abundant trans-utilization system institute
The various organic wastewater solid organic castoffs generated can provide the energy of sugar, starch, fat and cellulose family for planting
Plant；Internal consumption and trans-utilization are all respectively obtained before and after conversion system in conjunction with to solid liquid waste caused by process,
And the comprehensive resource being proliferated in bioreactor recycles, and is finally reached the zero-emission of waste.
It compared with the conventional method, is it will be apparent that the present invention has abundant raw material, cost the advantages of the technology of the present invention
It is low, the advantages that by-product is few, zero-emission, high bioenergy yield.By the way that a variety of subjects and technique are combined, reach integrated
Innovation, to realize economic benefits, ecological effect, social effect perfection harmonious development.
Detailed description of the invention
Fig. 1: organic waste and compound conversion system produce bioenergy series of products schematic diagram
Fig. 2: being straw ethanol of the present invention and biogas anaerobic fermentation bound fraction schematic diagram.
Fig. 3: being biogas anaerobic fermentation carbon dioxide purification separation of the present invention and enriching section schematic diagram.
Fig. 4: being that present system solid waste and scavenging Insect transformation prepare biodiesel partial schematic diagram.
Fig. 5: being bio-oil bioreactor transform portion schematic diagram of the present invention.
Fig. 6: waste caused by organic waste and compound conversion process cultivates energy-source plant and recycles schematic diagram.
Specific embodiment
What the present invention was achieved through the following technical solutions: stalk is the part that raw material produces alcohol fuel, the unit
The following steps are included: (1) stalk is broken: being crushed to stalk, be crushed to 80 meshes；And to stalk wood fibre
1.0% NaOH solution is added in plain powder；(2) it is saccharified by cellulose hydrolyzation；Add in the stalk powder made from step (1)
Enter cellulase, in 40 DEG C, under the conditions of pH is 4.5, stirring hydrolysis 48h obtains cellulose hydrolyzation saccharification liquid；(3) second
The temperature of cellulose hydrolyzation saccharification liquid is down to 35 DEG C in the fermenter by alcohol fermentation, and yeast 2g/L is added, and carries out constant temperature
Fermentation reaction can obtain alcohol fuel.Biogas anaerobic fermentation part, the unit is the following steps are included: (4) are useless to (3) cellulose ethanol
Liquid carries out flocculation sedimentation processing；(5) substrate of anaerobic fermentation is mixed, is put into anaerobic fermentation pond, and by the way that animal dung is added
Just carbon, the nitrogen ratio to adjust substrate are (20-30): 1, pH value 6.5-7.5, and temperature is 30-35 DEG C, and anaerobic fermentation generates natural pond
Gas；(6) to being separated by solid-liquid separation after anaerobic fermentation；(7) biogas mixed gas carries out carbon dioxide separation and purifying；Scavenging
Insect transformation discarded sections: (8) obtain accessing scavenging insect in biogas residue to (6), cultivate 5-10 days, separate at normal temperature
To insect body；Microbial oil bioreactor transform portion: insect body albumen and organic fertilizer are in addition obtained.(9) will
Remaining biogas slurry and (1) and (3) process pre-process to obtain sucrose-containing wastewater after fermentation, then pass in bioreactor, as
Cultivate the culture solution of algae；18-25 DEG C of bioreactor temperature is controlled, the pH value of culture solution is 6.5- in bioreactor
7.5；(10) biogas for generating anaerobic fermentation is continuously passed into light by aeration sand head as the carbon source of algae reproduction
The bottom of bioreactor absorbs carbon dioxide in biogas (7) by photosynthetic algae, finally obtains the height of purification
Quality methane；(11) in bioreactor, reach growth latter stage stationary phase in algae reproduction, its part is harvested, with
(8) it is mixed for extracting preparing biodiesel from lipid；(12) remaining cellulose family residue may be added to (1) or (5) as fine
It ties up one of raw material of ethyl alcohol or biogas and is sent into anaerobic fermentation pond；(13) the biogas residue compost that anaerobic fermentation process (6) generates, the energy are planted
Object trans-utilization system collects spent process water and biogas slurry, exhaust gas solid and separation and enrichment process of methane carbon dioxide, for planting
Train the starch-containing class energy-source plants such as the energy-source plants containing carbohydrate such as sugar grass, sugarcane, and culture purple sweet potato, the fibre-bearings such as plantation poplar
Plain class energy-source plant plants the energy-source plants containing grease type such as Chinese tallow tree, and biomass caused by these energy-source plants can be used again
It is used to produce bioenergy to extract sugar source, starch, fat and cellulose.
Claims (1)
1. a kind of prepare ethyl alcohol using organic waste, the co-production of biogas and biodiesel, what the co-production generated
CO in spent process water, exhaust gas, biogas residue solid and separation and enrichment process of methane2, for cultivating energy-source plant containing carbohydrate, plantation
Containing cellulose class energy-source plant, plants energy-source plant containing grease type, and biomass caused by these energy-source plants is used to extract sugar
Source, fat and cellulose produce bioenergy, it is characterised in that it is that raw material produces alcohol fuel by straw lignocellulose
Part, biogas anaerobic fermentation part, scavenging Insect transformation discarded sections and microbial oil bioreactor conversion portion
It is grouped as；
Straw lignocellulose is the part that raw material produces alcohol fuel, comprising the following steps: (1) straw lignocellulose
It is broken: straw lignocellulose is crushed, and the NaOH for being added 1.0% to straw lignocellulose powder is molten
Stalk powder and sucrose-containing wastewater is made in liquid；(2) it is saccharified as cellulose hydrolyzation: in the stalk powder made from step (1)
Cellulase is added, under the conditions of 40 DEG C, pH are 4.5, stirring hydrolysis 48h obtains cellulose hydrolyzation saccharification liquid；(3)
Alcohol fermentation: being down to 35 DEG C for the temperature of cellulose hydrolyzation saccharification liquid in the fermenter, and yeast 2g/L is added, and carries out permanent
Warm fermentation reaction can obtain alcohol fuel；
Biogas anaerobic fermentation part, comprising the following steps: (4) flocculate to organic solid liquid waste after (3) alcohol fermentation
Precipitation process respectively obtains solid waste and sucrose-containing wastewater；(5) solid waste that process (4) obtains is put into anaerobism hair
Ferment pond, and adjusting carbon, the nitrogen ratio of substrate by the way that feces of livestock and poultry is added is (20-30): and 1, pH value 6.5-7.5, temperature are
30-35 DEG C, anaerobic fermentation generates biogas mixed gas；(6) residue after anaerobic fermentation is separated by solid-liquid separation, obtains biogas residue
With biogas slurry remaining after fermentation；(7) biogas mixed gas carries out CO2Separation and purifying；
(8) it scavenging Insect transformation discarded sections: obtains accessing scavenging insect in biogas residue to (6), cultivates 5- at normal temperature
10 days, isolated insect body；
Microbial oil bioreactor transform portion, comprising the following steps: (9) sucrose-containing wastewater that obtains (1) process and
(3) the remaining substance after process alcohol fermentation is mixed with biogas slurry remaining after (6) fermentation, is then passed in bioreactor, is made
For the culture solution for cultivating algae；18-25 DEG C of bioreactor temperature is controlled, the pH value of culture solution is 6.5- in bioreactor
7.5；(10) carbon source of the biogas mixed gas for generating (5) as algae reproduction, is continuously passed through by aeration sand head
To the bottom of bioreactor, by photosynthetic algae to CO in biogas mixed gas2It is absorbed, after finally obtaining purification
High-quality methane；(11) in bioreactor, reach growth latter stage stationary phase in algae reproduction, harvested, with (8)
Gained insect body is mixed for extracting preparing biodiesel from lipid；(12) remaining cellulose family residue may be added to (1) or
(5) anaerobic fermentation pond is sent into as one of raw material of ethyl alcohol or biogas；(13) the biogas residue compost conduct that anaerobic fermentation process generates
The fertilizer of energy-source plant.
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| CN112795486B (en) * | 2020-12-30 | 2023-09-19 | 兴源环境科技股份有限公司 | Method for synchronously producing ethanol by livestock and poultry manure microalgae cultivation |
| CN112813113B (en) * | 2020-12-30 | 2022-11-08 | 兴源环境科技股份有限公司 | Method for producing bio-oil by synergism of livestock and poultry manure |
| CN113800722A (en) * | 2021-10-09 | 2021-12-17 | 沈阳航空航天大学 | Method for co-producing methane-bio-oil by coupling domestic sewage anaerobic digestion with microalgae culture |
| CN114045311A (en) * | 2021-10-25 | 2022-02-15 | 中国科学院广州能源研究所 | Method for preparing biogas from citrus pulp |
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