CN101818174A - Process for producing alcohol by using maize straws - Google Patents
Process for producing alcohol by using maize straws Download PDFInfo
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- CN101818174A CN101818174A CN201010138402A CN201010138402A CN101818174A CN 101818174 A CN101818174 A CN 101818174A CN 201010138402 A CN201010138402 A CN 201010138402A CN 201010138402 A CN201010138402 A CN 201010138402A CN 101818174 A CN101818174 A CN 101818174A
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- alcohol
- maize straw
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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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Abstract
The invention belongs to the field of processing of agricultural and sideline products and particularly relates to a process for producing alcohol by using maize straws. The process comprises the following steps of: pulverizing and silk-rubbing the maize straws; adding alcohol biochemical enzyme into the maize straws to perform enzymolysis in a mass ratio of 1:0.003-0.005; putting the raw materials after the enzymolysis into a fiber vacuum separator and adding steam until the temperature is between 80 and 93 DEG C; extracting the gas to condense into liquid; and distilling and removing impurities to obtain the alcohol. The process has the advantages of environmental protection, low energy consumption, low cost, high quality of produced alcohol and worthy popularization.
Description
(1) technical field
The invention belongs to the agricultural byproducts processing field, particularly a kind of maize straw is produced the technology of alcohol.
(2) background technology
Alcohol is a kind of important industrial raw material, is widely used in fields such as food, chemical and medicine industry, and it can partly substitute gasoline.The tool investigation, in the motor spirit that Anhui, Jiangsu, Shandong and 31 experimental cities of Hebei Si Sheng provide, the ratio of alcohol fuel has reached 13% at present.And before motor car engine not being transformed, the ratio of alcohol fuel can also increase by 2 percentage points again to 15%.If engine is done change slightly, this ratio then can reach 22%, has advantages such as safety, cleaning, regeneration.Fuel alcohol was fermenting raw materials production with molasses, potato class, corn, cereal mainly originally.But China has a large population and a few land, and it is rare to plough, and is that raw material is produced the national conditions that biofuel does not obviously meet China with grain.At this present situation, country is to being that raw material is produced biofuel alcohol and limited with grain, and according to the principle of " do not strive grain, do not strive ground with the people with the people ", non-grain raw materials such as emphasis Muller's fibers resource such as stalk are produced biofuel alcohol.Utilize stalk to make fuel alcohol, not only can obtain " continuable " raw material sources, but also can help increasing peasant income, this project technology can also be alleviated the pollution difficult problem that crop straw burning causes in addition.It is reported, about 600,000,000 tons of China's agricultural crop straw annual production is used for the less than 40% of papermaking, herding and life in the countryside fuel, is most ofly directly burned, this process is not only discharged a large amount of greenhouse gases carbonic acid gas and methane, also can cause detrimentally affect to air, traffic etc. simultaneously.
In China, maize straw is a kind of rich in natural resources, utilizing maize straw to produce fuel alcohol is to utilize renewable resource to solve an international big problem of liquid fuel, more and more come into one's own, many countries and enterprise have carried out this work, but also do not realize large-scale industrial production so far, and reason mainly is to exist following problem: (one) pollutes: stalk is undertaken by the highly basic decomposition, to produce a large amount of waste water in the production process, seriously polluted.(2) cost: the shape of stalk is longer, and transportation is got up and be inconvenient, and trucking costs is too high; The use cost of the high active cellulase of adaptation solid fermentation is mostly about 3000 yuan/ton at present; Output is than low, and present technology is one ton of alcohol of ten tons of raw material outputs, and Mierocrystalline cellulose is made the alcoholic acid cost and reached 6000 yuan to 7000 yuan per ton (general grain system alcoholic acid cost is 4800 yuan to 5000 yuan), and therefore, cost is very high.
(3) summary of the invention
The object of the present invention is to provide a kind of maize straw to produce the technology of alcohol, can overcome the defective that present technology is seriously polluted, cost is too high, be convenient to suitability for industrialized production.
The technical solution used in the present invention is as follows:
A kind of maize straw is produced the technology of alcohol, silk is pulverized, rubbed to maize straw, then according to 1: the mass ratio of 0.003-0.005 adds the alcohol biochemical enzyme and carries out enzymolysis, raw material behind the enzymolysis put in the fiber vacuum separation machine add steam to 80-93 ℃, then gas is extracted out and be condensed into liquid, promptly get alcohol after rectifying, the impurity elimination.
The preferred Henan Province of described alcohol biochemical enzyme Rui Teli Bioisystech Co., Ltd produces alcohol biochemical enzyme JJSH3/06,, can obtain by the market purchase.This enzyme enzyme activity (IU/g): 〉=9500; Water content (%) :≤5.0; Enzyme activity storage rate (room temperature, 2 years): 〉=90%.Saltout, the ammonium sulfate saturation ratio is 30-80%, organic solvent deposit, and organic solvent concentration is 40-90%.The enzyme work of this enzyme is high, the enzymolysis ability is strong, is convenient to adopt subsequent technique to extract highly purified ethanol.
Further, maize straw being pulverized is 3-3.5cm.The process that pulverize, rub silk, adds alcohol biochemical enzyme and packing can be carried out in the harvesting process, greatly facilitates transportation like this.
Seal after adding the alcohol biochemical enzyme, preserve or be embedded in underground in normal temperature.Can adopt the snakeskin bag of plastic lining film bag during sealing, the snakeskin bag should pass through purifying air, can 50Kg be one bag.After reaching 7 days, general enzymolysis time just can carry out next step operation; Wherein the raw material with sealing is embedded in undergroundly, not only reduces warehouse area but also play insulation effect, has reduced the cost of raw material storage.
Concrete, when the raw material that adds steam reaches the requirement temperature, can start the vacuum filtration pump with gas suction condenser, gas cooling is converted into liquid, owing to contain impurity and excess moisture in the liquid, again in addition rectifying of liquid, dehydration are removed impurity such as aldehyde fat, fusel wet goods, can extract and obtain the quality percentage composition and be not less than 99% alcohol.
Described condensation gets final product under normal temperature.
After alcoholic extraction finishes, the material in the fiber vacuum separation machine is carried out solid-liquid separation recycle.Solid and liquid can be used respectively at producing high value added product fiber, papermaking, wood sugar etc.
The present invention is that ethanol is made in the main raw material fermentation with the maize straw, the ratio of starting material and product is not more than 6.5: 1, quality product meets industrial spirit standard GB/T394.1-2008 fully, and production process is pollution-free substantially and by product has also all obtained sufficient recycling; Described technology whole production flow process is very short, time-saving while efficient improves greatly, energy consumption also is minimized, and finally reduces the price that maize straw is produced alcohol greatly, and cost can be controlled in 4000 yuan/ton.
The present invention has following advantage with respect to prior art:
Technology environmental protection of the present invention, less energy-consumption, low cost, the quality height of output alcohol is worthy to be popularized.
(4) description of drawings
Fig. 1 produces the process flow sheet of alcohol for maize straw of the present invention.
(5) embodiment:
Below with specific embodiment technical scheme of the present invention is described, but protection scope of the present invention is not limited thereto:
Below employed alcohol biochemical enzyme be that Henan Province Rui Teli Bioisystech Co., Ltd produces alcohol biochemical enzyme JJSH3/06.
Embodiment 1
Silk is pulverized, rubbed to 500 jin of exsiccant maize straws, then according to starting material: the alcohol biochemical enzyme is 1: 0.003 (mass ratio, ratio down together) adds the alcohol biochemical enzyme, divides the snakeskin bag of five the plastic lining film bags of packing into afterwards, and the snakeskin bag passes through purifying air in advance.Sealing back normal temperature is preserved to be embedded in and was stored and enzymolysis in underground seven days.Raw material behind the enzymolysis put in the fiber vacuum separation machine add steam, when temperature reaches 80 ℃, start the vacuum filtration pump, with alcohol gas suction condenser, gas cooling is converted into liquid, and impurity and moisture are removed in addition rectifying of liquid, dehydration, and conventional procedure extracts, obtain 99% 77 jin of alcohol products (the ethanol content survey meter of installing later when condenser shows that ethanol content stops to extract less than 5 °, down together).
Embodiment 2
Silk is pulverized, rubbed to 500 jin of exsiccant maize straws, and the ratio according to 1: 0.004 in starting material adds the alcohol biochemical enzyme, divides the snakeskin bag of five the plastic lining film bags of packing into afterwards, and the snakeskin bag passes through purifying air in advance.Be embedded in after the sealing and stored and enzymolysis in underground 60 days.Raw material behind the enzymolysis put in the fiber vacuum separation machine add steam, when temperature reaches 85 ℃, start the vacuum filtration pump, with alcohol gas suction condenser, gas cooling is converted into liquid, and impurity and moisture are removed in addition rectifying of liquid, dehydration, extracts to obtain 78.3 jin of 99% alcohol products.
Embodiment 3
Silk is pulverized, rubbed to 500 jin of exsiccant maize straws, and the ratio according to 1: 0.005 in starting material adds the alcohol biochemical enzyme, divides the snakeskin bag of five the plastic lining film bags of packing into afterwards, and the snakeskin bag passes through purifying air in advance.Sealing back normal temperature is preserved to be embedded in and was stored and enzymolysis in underground 180 days.Raw material behind the enzymolysis put in the fiber vacuum separation machine add steam, when temperature reaches 90 ℃, start the vacuum filtration pump, with alcohol gas suction condenser, gas cooling is converted into liquid, and impurity and moisture are removed in addition rectifying of liquid, dehydration, extracts to obtain 80.5 jin of 99% alcohol products.
Claims (6)
1. a maize straw is produced the technology of alcohol, it is characterized in that, silk is pulverized, rubbed to maize straw, then according to 1: the mass ratio of 0.003-0.005 adds the alcohol biochemical enzyme and carries out enzymolysis, raw material behind the enzymolysis put in the fiber vacuum separation machine add steam to 80-93 ℃, then gas is extracted out and be condensed into liquid, promptly get alcohol after rectifying, the impurity elimination.
2. maize straw as claimed in claim 1 is produced the technology of alcohol, it is characterized in that, described alcohol biochemical enzyme is that Henan Province Rui Teli Bioisystech Co., Ltd produces alcohol biochemical enzyme JJSH 3/06.
3. maize straw as claimed in claim 1 or 2 is produced the technology of alcohol, it is characterized in that, seals after adding the alcohol biochemical enzyme, preserves or is embedded in underground in normal temperature.
4. maize straw as claimed in claim 3 is produced the technology of alcohol, it is characterized in that, maize straw is pulverized be 3-3.5cm.
5. maize straw as claimed in claim 4 is produced the technology of alcohol, it is characterized in that condensation is carried out under normal temperature.
6. maize straw as claimed in claim 1 is produced the technology of alcohol, it is characterized in that, after alcoholic extraction finishes, the material in the fiber vacuum separation machine is carried out solid-liquid separation recycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010138402XA CN101818174B (en) | 2010-04-02 | 2010-04-02 | Process for producing alcohol by using maize straws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010138402XA CN101818174B (en) | 2010-04-02 | 2010-04-02 | Process for producing alcohol by using maize straws |
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| Publication Number | Publication Date |
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| CN101818174A true CN101818174A (en) | 2010-09-01 |
| CN101818174B CN101818174B (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010138402XA Expired - Fee Related CN101818174B (en) | 2010-04-02 | 2010-04-02 | Process for producing alcohol by using maize straws |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104232695A (en) * | 2014-09-22 | 2014-12-24 | 卢仁华 | Method for brewing alcohol through fermentation of plant fibers |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998058071A1 (en) * | 1997-06-18 | 1998-12-23 | Dusan Ciric | The procedure for obtaining ethyl-alcohol from cellulose |
| CN101130792A (en) * | 2007-08-06 | 2008-02-27 | 周继新 | Method for producing fuel alcohol by straw enzymolysis |
| US20080318291A1 (en) * | 2003-03-25 | 2008-12-25 | Langhauser Leon H | Corn and fiber refining |
-
2010
- 2010-04-02 CN CN201010138402XA patent/CN101818174B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998058071A1 (en) * | 1997-06-18 | 1998-12-23 | Dusan Ciric | The procedure for obtaining ethyl-alcohol from cellulose |
| US20080318291A1 (en) * | 2003-03-25 | 2008-12-25 | Langhauser Leon H | Corn and fiber refining |
| CN101130792A (en) * | 2007-08-06 | 2008-02-27 | 周继新 | Method for producing fuel alcohol by straw enzymolysis |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104232695A (en) * | 2014-09-22 | 2014-12-24 | 卢仁华 | Method for brewing alcohol through fermentation of plant fibers |
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| CN101818174B (en) | 2012-12-05 |
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