CN109913506A - A kind of method that broomcorn straw prepares ethyl alcohol - Google Patents
A kind of method that broomcorn straw prepares ethyl alcohol Download PDFInfo
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- CN109913506A CN109913506A CN201711312573.8A CN201711312573A CN109913506A CN 109913506 A CN109913506 A CN 109913506A CN 201711312573 A CN201711312573 A CN 201711312573A CN 109913506 A CN109913506 A CN 109913506A
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- ethyl alcohol
- broomcorn straw
- alcohol
- prepares ethyl
- broomcorn
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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
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Processing Of Solid Wastes (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
The invention belongs to agricultural and sideline product comprehensive process field, in particular to method that a kind of broomcorn straw prepares ethyl alcohol.Broomcorn straw is crushed, rubs silk, then alcohol is added according to 1: 0.003-0.005 mass ratio to be digested with complex enzyme, raw material after enzymatic hydrolysis is put into fiber vacuum seperator plus steam is to 80-93 DEG C, gas extraction is then condensed into liquid, up to ethyl alcohol after rectifying, impurity elimination.The quality of present invention process environmental protection, low energy consumption, low cost, output ethyl alcohol is high, is worthy to be popularized.
Description
Technical field
The invention belongs to agricultural byproducts processing field, in particular to method that a kind of broomcorn straw prepares ethyl alcohol.
Background technique
Ethyl alcohol is a kind of important raw material of industry, is widely used in the fields such as food, chemical and medicine industry, it can partially be substituted
Gasoline.Tool investigation, in the motor petrol that 31 Anhui, Jiangsu, Shandong and Hebei Si Sheng experimental cities provide, alcohol fuel at present
Ratio had reached 13%.And before not being transformed to automobile engine, the ratio of alcohol fuel can also increase again
Add 2 percentage points to 15%.If slightly changed to engine, this ratio if, can reach 22%, have safe and clean, again
The advantages that raw.Alcohol fuel was originally mainly produced using molasses, potato, sorghum, cereal as fermenting raw materials.But China has a large population and a few land,
It ploughs rare, the national conditions in China is not obviously met using grain as waste bio-fuel.For this status, country is to grain
Food is limited for waste bio-fuel ethyl alcohol, and according to the principle of " do not strive grain with people, do not strive ground with people ", emphasis branch
It holds the non-grain raw materials such as fibre resources such as stalk and produces bio-fuel ethyl alcohol.Alcohol fuel is manufactured using stalk, can not only be obtained
" sustainable " raw material sources are obtained, and may also help in increasing peasant income, furthermore the Project Technical can also alleviate crop straw burning and lead
The pollution problem of cause.It is reported that about 600,000,000 tons of China's agricultural crop straw annual output, for papermaking, herding and life in the countryside fuel
Less than 40%, most of directly to be burned, a large amount of GHG carbon dioxide and methane is not only discharged in this process, simultaneously also
Adverse effect can be caused to air, traffic etc..
In China, broomcorn straw is a kind of resource abundant, is to utilize production-goods again using broomcorn straw production alcohol fuel
Source solves the problems, such as that one of liquid fuel is international big, is increasingly taken seriously, and many countries and enterprise have carried out this work,
But so far there are no large-scale industrial production is realized, reason, which essentially consists in, to be had the following problems: (one) pollution: stalk is
Progress is decomposed by highly basic, a large amount of waste water is generated in production process, it is seriously polluted.(2) cost: the shape of stalk compared with
Long, transport is got up and inconvenience, freight are excessively high；The use cost for adapting to the high active cellulase of solid fermentation at present is big
All at 3000 yuan/ton or so；Output ratio is low, and current technology is ten tons of raw material outputs, one ton of ethyl alcohol, and cellulose manufactures ethyl alcohol
Cost reaches 6000 yuan to 7000 yuan per ton (cost of general grain ethyl alcohol is 4800 yuan to 5000 yuan), and therefore, cost is non-
Chang Gao.
Summary of the invention
The purpose of the present invention is to provide a kind of methods that broomcorn straw prepares ethyl alcohol, and current process contamination can be overcome tight
The excessively high defect of weight, cost, is convenient for industrialized production.
The technical solution adopted by the invention is as follows:
A kind of method that broomcorn straw prepares ethyl alcohol, by broomcorn straw crush, rub silk, then according to 1: 0.003-0.005 matter
Amount ratio is added alcohol and is digested with complex enzyme, and the raw material after enzymatic hydrolysis is put into fiber vacuum seperator and adds steam to 80-
93 DEG C, gas extraction is then condensed into liquid, up to ethyl alcohol after rectifying, impurity elimination.
Further, it is sealed after alcohol complex enzyme being added, in being stored at room temperature or be embedded in underground.
Still further, crushing broomcorn straw for 3-3.5cm.
The condensation carries out under room temperature.
Further, after ethyl alcohol extracts, the substance in fiber vacuum seperator is carried out to be separated by solid-liquid separation recycling benefit
With.
The present invention is that main fermenting raw materials manufacture ethyl alcohol with broomcorn straw, and the ratio of raw material and product is not more than 6.5: 1,
Product quality complies fully with industrial alcohol standard GB/T/T394.1-2008, production process is substantially pollution-free and by-product also all
Sufficient recycling is obtained；The entire production procedure of the technique is very short, time-saving while efficiency greatly improves,
Energy consumption is also minimized, and finally substantially reduces the price of broomcorn straw production ethyl alcohol, and cost is can be controlled within 4000 yuan/ton.
The present invention compared with the existing technology, has the advantage that
The quality of present invention process environmental protection, low energy consumption, low cost, output ethyl alcohol is high, is worthy to be popularized.
Specific embodiment:
Below the technical scheme of the invention is illustrated by a specific example, but the scope of the present invention is not limited thereto:
Embodiment 1
500 jin of dry broomcorn straws are crushed, rub silk, then according to raw material: alcohol complex enzyme is 1: 0.003 (matter
Measure ratio, similarly hereinafter) ratio be added alcohol complex enzyme, be distributed into the snakeskin bag of five plastic lining film bags later, snakeskin bag is pre-
First pass through air cleaning.It is stored at room temperature after sealing and is embedded in underground and is stored and digested for seven days.Raw material after enzymatic hydrolysis is put into fibre
It ties up and adds steam in vacuum separation machine, when temperature reaches 80 DEG C, alcohol gas is pumped into condenser, gas by starting vacuum filtration pump
Cooling is converted into liquid, and liquid is subject to rectifying, dehydration removal impurity and moisture, conventional program and is extracted, 99% ethyl alcohol is obtained
77 jin of product (the ethanol content measuring instrument installed below when condenser shows that less than 5 ° stoppings of ethanol content are extracted, similarly hereinafter).
Embodiment 2
500 jin of dry broomcorn straws are crushed, rub silk, and alcohol is added with again in the ratio in raw material according to 1: 0.004
Synthase, is distributed into the snakeskin bag of five plastic lining film bags later, and snakeskin bag first passes through air cleaning in advance.Underground is embedded in after sealing
It is stored and is digested within 60 days.Raw material after enzymatic hydrolysis is put into fiber vacuum seperator plus steam opens when temperature reaches 85 DEG C
Dynamic vacuum filtration pump, is pumped into condenser for alcohol gas, and gas cooling is converted into liquid, liquid is subject to rectifying, dehydration removes
Impurity and moisture, extraction obtain 78.3 jin of alcohol product of 99%.
Embodiment 3
500 jin of dry broomcorn straws are crushed, rub silk, and alcohol is added with again in the ratio in raw material according to 1: 0.005
Synthase, is distributed into the snakeskin bag of five plastic lining film bags later, and snakeskin bag first passes through air cleaning in advance.It is stored at room temperature after sealing
Underground is embedded in be stored and digested within 180 days.Raw material after enzymatic hydrolysis is put into fiber vacuum seperator plus steam, temperature reach
At 90 DEG C, starting vacuum filtration pump, alcohol gas is pumped into condenser, gas cooling is converted into liquid, by liquid be subject to rectifying,
Dehydration removal impurity and moisture, extraction obtain 80.5 jin of alcohol product of 99%.
Claims (5)
1. a kind of method that broomcorn straw prepares ethyl alcohol, which is characterized in that broomcorn straw is crushed, rubs silk, then according to 1:
The mass ratio of 0.003-0.005 is added alcohol and is digested with complex enzyme, and the raw material after enzymatic hydrolysis is put into fiber vacuum separation
In machine plus steam is to 80-93 DEG C, gas extraction is then condensed into liquid, up to ethyl alcohol after rectifying, impurity elimination.
2. the method that broomcorn straw as described in claim 1 prepares ethyl alcohol, which is characterized in that close after addition alcohol complex enzyme
Envelope, in being stored at room temperature or be embedded in underground.
3. the method that broomcorn straw as claimed in claim 2 prepares ethyl alcohol, which is characterized in that crushing broomcorn straw for 3-
3.5cm。
4. the method that broomcorn straw as claimed in claim 3 prepares ethyl alcohol, which is characterized in that condensation carries out under room temperature.
5. the method that broomcorn straw as described in claim 1 prepares ethyl alcohol, which is characterized in that, will be fine after ethyl alcohol extracts
Substance in dimension vacuum separation machine carries out separation of solid and liquid recycling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711312573.8A CN109913506A (en) | 2017-12-12 | 2017-12-12 | A kind of method that broomcorn straw prepares ethyl alcohol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711312573.8A CN109913506A (en) | 2017-12-12 | 2017-12-12 | A kind of method that broomcorn straw prepares ethyl alcohol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109913506A true CN109913506A (en) | 2019-06-21 |
Family
ID=66957043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711312573.8A Pending CN109913506A (en) | 2017-12-12 | 2017-12-12 | A kind of method that broomcorn straw prepares ethyl alcohol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109913506A (en) |
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2017
- 2017-12-12 CN CN201711312573.8A patent/CN109913506A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190621 |