CN1186451C - Technique for producing ethanol by using harmless recycling resources of domestic garbage turn to compost - Google Patents
Technique for producing ethanol by using harmless recycling resources of domestic garbage turn to compost Download PDFInfo
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- CN1186451C CN1186451C CN 03117223 CN03117223A CN1186451C CN 1186451 C CN1186451 C CN 1186451C CN 03117223 CN03117223 CN 03117223 CN 03117223 A CN03117223 A CN 03117223A CN 1186451 C CN1186451 C CN 1186451C
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- domestic refuse
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Abstract
The present invention relates to a process for producing ethanol by urban domestic refuse. The present invention is characterized in that first, the urban domestic refuse is classified; subsequently, the whole alcohol production process is finished through three working procedures: hydrolysis, fermentation and distillation. The process of the present invention has the advantages of harmless reutilization of the urban domestic refuse with large treating capacity, simple process equipment and few production procedures, obviously improves the harmless resource utilization degree of the urban domestic refuse, and greatly reduces the urban domestic refuse quantity. The ethanol produced by the method of the present invention can be used as industrial solvents, the ethanol yield reaches 90 to 91%, and the sugar utilization ratio reaches 93 to 94%. Compared with grain ethanol, the raw material cost is reduced by 70%. The method of the present invention has conspicuous social benefits, environmental protection benefits and considerable economic benefits.
Description
One, technical field
The invention belongs to the processing treatment of refuse, particularly a kind of resource utilization recoverying and utilizing method of domestic waste.
Two, background technology
In the composition of city daily life rubbish, what deal was maximum is organic waste matter, secondly is high molecular polymers such as waste or used plastics, is inorganic wastes once more.All produce a large amount of domestic wastes and how be able to reasonable processing every day, is a great problem of puzzlement society always.At present, on the garbage treatment problem, general city also rests on the backward traditional mode of taking the dell heap to bury, and a few cities can be used for burning electricity generation or makes fertilizer etc.; The Chinese invention patent application that it is CN1063711A that there was a publication number on August 19th, 1992 is open, it is a kind of prescription and compound method thereof of utilizing domestic refuse to make substitute diesel, its technical essential is to adopt spontaneous hydrocracking to handle under High Temperature High Pressure, prepared mixture is through distillation, the distillate that obtains is again through emulsification, the suitable composition of purifying out.But this prior art can only be the diesel oil fuel component with the hydrocracking under High Temperature High Pressure of the high molecular polymer in the domestic waste, and the great number of organic matters refuse can not be fully recycled, and whole technology is complicated, and condition is harsh.In a word, the recovery and utilization technology of existing domestic waste, its resource utilization degree is not high.
Three, summary of the invention
The objective of the invention is at above-mentioned the deficiencies in the prior art, propose a kind of domestic waste that utilizes of meter and produce alcoholic acid technology, make it to significantly improve the degree that the domestic waste resource utilization is recycled, can open up a new road for rationally effectively handling of domestic waste again, and obtain considerable economic.
Realize purpose of the present invention by the following technical solutions.
A kind of domestic waste harmless resource that utilizes is produced alcoholic acid technology, it is characterized in that earlier domestic waste being carried out sorting, realizes the whole process of production subsequently with three-procedure:
1) hydrolysis-with the rich cellulose that sub-elects and the organic waste matter of hemicellulose, with weight percent concentration be the dilute sulphuric acid of 0.5-5%, pack in the pressurized vessel by solid-to-liquid ratio 1: 0.7-4, under 120-200 ℃ of temperature and 0.6-1.5Mpa pressure condition, carried out airtight hydrolysis treatment 1-1.5 hour, and obtained containing the hydrolyzed solution of hexose;
2) fermentation-pH value is set up in hydrolysis is 3-6, change in the fermentor tank after filtration and after concentrating again, add the yeast of 0.5-1.5 weight part by per 1000 weight part hydrolysis liquid, be allowed to condition in the fermentor tank spontaneous fermentation 30-36 hour, make and contain 6-10% alcoholic acid fermented liquid;
3) distill-will contain 6-10% alcoholic acid fermented liquid, temperature is controlled at 80 ℃ and distills purification, obtains the industrial alcohol product.
Utilize domestic waste to produce alcoholic acid technology according to the present invention, can carry out the innoxious recycling of high throughput to domestic waste, and processing unit is simple, production process is few, the harmless resource that can significantly improve domestic waste utilizes degree, can make municipal wastes decrement significantly, recycle for the resource utilization of domestic waste and opened up a new way; Ethanol with the inventive method is produced can be widely used as industrial solvent, and the ethanol yield can reach 90-91%, and the utilization ratio of sugar can reach 93-94%, compares with grain alcohol, and its raw materials cost can reduce by 70%.In a word, the inventive method has remarkable social benefit, environmental benefit and considerable economic.
Four, embodiment
Illustrate that with example the present invention utilizes domestic waste to produce the embodiment of ethanol below.
Get the organic waste matter of 1000 kilograms of rich cellulose that from domestic waste, sub-elect and half fiber earlier, get concentration again and be 700 kilograms of 1.1% dilute sulphuric acids, drop in the pressurized vessel, under air-tight state, temperature is controlled at 180 ± 5 ℃, pressure-controlling is about 0.8Mpa, allow it hydrolysis reaction take place 80 minutes, obtain to contain the hydrolyzed solution of hexose; Again hydrolyzed solution is set up pH value to 3-6, again after filtration and be condensed into the hydrolyzed solution that hexose concentration is 6-10%, it is changed in the fermentor tank, add the yeast of 0.5-1.5 weight part by 1000 weight part hydrolysis liquid, be allowed to condition at fermentation cylinder for fermentation 32 hours, and made and contain 6-10% alcoholic acid fermented liquid; At last the fermented liquid temperature is controlled at 80 ℃ and distills purification, obtain alcohol concn and be 50 kilograms of 95% industrial alcohols.
Claims (1)
1, a kind of domestic waste harmless resource that utilizes is produced alcoholic acid technology, it is characterized in that earlier domestic waste being carried out sorting, realizes the whole process of production subsequently with three-procedure:
1) hydrolysis-with the rich cellulose that sub-elects and the organic waste matter of hemicellulose, with weight percent concentration be the dilute sulphuric acid of 0.5-5%, pack in the pressurized vessel by solid-to-liquid ratio 1: 0.7-4, under 120-200 ℃ of temperature and 0.6-1.5Mpa pressure condition, carried out airtight hydrolysis treatment 1-1.5 hour, and obtained containing the hydrolyzed solution of hexose;
2) fermentation-hydrolyzed solution is set up pH value is 3-6, change in the fermentor tank after filtration and after concentrating again, yeast by per 1000 weight part hydrolysis liquid adding 0.5-1.5 weight part is allowed to condition at fermentation cylinder for fermentation 30-36 hour, makes and contains 6-10% alcoholic acid fermented liquid;
3) distill-will contain 6-10% alcoholic acid fermented liquid, temperature is controlled at 80 ℃ and distills purification, obtains the industrial alcohol product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03117223 CN1186451C (en) | 2003-01-24 | 2003-01-24 | Technique for producing ethanol by using harmless recycling resources of domestic garbage turn to compost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03117223 CN1186451C (en) | 2003-01-24 | 2003-01-24 | Technique for producing ethanol by using harmless recycling resources of domestic garbage turn to compost |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1431313A CN1431313A (en) | 2003-07-23 |
| CN1186451C true CN1186451C (en) | 2005-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03117223 Expired - Fee Related CN1186451C (en) | 2003-01-24 | 2003-01-24 | Technique for producing ethanol by using harmless recycling resources of domestic garbage turn to compost |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1186451C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101209452B (en) * | 2006-12-27 | 2012-01-11 | 李朝旺 | Multifunctional garbage processing method |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058097B (en) * | 2007-05-31 | 2011-04-06 | 张虎明 | Resource using method for food and drink garbage |
| CN101890423B (en) * | 2010-04-30 | 2012-04-11 | 郭东平 | Recycling method for cleaning and processing kitchen waste |
| CN102086076A (en) * | 2010-08-25 | 2011-06-08 | 天津德为环保工程设备有限公司 | Processing system of organism degradation reduction liquid in house refuses |
| CN104651010A (en) * | 2014-12-15 | 2015-05-27 | 民勤县家兴节能服务有限公司 | Method for making fuels by utilizing fermentation of waste cotton clothes |
| CN104561131A (en) * | 2015-01-28 | 2015-04-29 | 国药集团化学试剂有限公司 | Method for preparing industrial alcohol from urban solid waste |
-
2003
- 2003-01-24 CN CN 03117223 patent/CN1186451C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101209452B (en) * | 2006-12-27 | 2012-01-11 | 李朝旺 | Multifunctional garbage processing method |
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| Publication number | Publication date |
|---|---|
| CN1431313A (en) | 2003-07-23 |
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Granted publication date: 20050126 Termination date: 20140124 |