CN102234947A - Pretreatment method for quickly degrading rice straw - Google Patents
Pretreatment method for quickly degrading rice straw Download PDFInfo
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- CN102234947A CN102234947A CN2010101504905A CN201010150490A CN102234947A CN 102234947 A CN102234947 A CN 102234947A CN 2010101504905 A CN2010101504905 A CN 2010101504905A CN 201010150490 A CN201010150490 A CN 201010150490A CN 102234947 A CN102234947 A CN 102234947A
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- rice straw
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Abstract
The invention relates to an industrial pretreatment process for quickly degrading rice straw. The process comprises the following steps: mechanically pressing rice straws into bricks; performing irradiation pretreatment through <60>Co-gamma rays of (0.5-1.5)*10<6>Gy; and performing mechanical crushing and 200-mesh sieving, wherein rice straw powder is used for producing the pretreatment raw material of cellulosic ethanol. By adopting the process, the specific density and processing amount of rice straw are increased, the rice straw powder is directly produced without mechanical grinding, the process is simplified, the fiber degrading efficiency of rice straw is improved, the usage of cellulase can be reduced, the pollution of acid and alkaline degradation treatment on environment is eliminated, and the consumption of heat energy is reduced.
Description
Technical field: the present invention relates to the processing technology that the industrialization of a kind of energy is degraded into the straw powder fast.
Background technology: traditional stalk ligocellulose degradation technology be with stalk lignocellulose process diluted acid diluted alkaline, microwave and preliminary treatment such as ultrasonic wave, steam blasting, or directly cellulase preparation is degraded into reducing sugar.Mainly have stalk transportation and cost of storage height at present in suitability for industrialized production is used, the soda acid consumption reclaims low greatly, and environmental pollution is serious, and retracting device costs an arm and a leg, the production cost height of cellulase, and enzymolysis efficiency is low, with problems such as the enzyme amount are big.
Summary of the invention: the purpose of this invention is to provide and a kind of the rice straw industrialization is degraded into the processing technology of straw powder fast, be pressed into rice straw brick, adopt again by the employing machine
60Co-gamma-rays or electron-beam accelerator radiation treatment.Compare with traditional handicraft, saved the acid in the traditional handicraft, alkali treatment process, reduced environmental pollution, treatment with irradiation has been destroyed stalk lignocellulose institutional framework, can directly straw be degraded into the straw powder, improve the degradation rate of rice-straw fibre, and can realize suitability for industrialized production.
The present invention is achieved in that the stalk brick that the rice straw machine is pressed into every cubic metre heavy 150～300 kilograms, adopts
60Co-gamma-rays or electron-beam accelerator radiation treatment, irradiation dose are 0.5～1.5 * 10
6Gy crosses 200 mesh sieves with the rice straw mechanical crushing behind the irradiation.To can be used for the cellulose hydrolyzation saccharification behind the straw powder packaging or as the raw material of animal feed.With
60Co-gamma-rays or electron-beam accelerator are handled and are replaced acid, steam blasting preliminary treatment, have reduced environmental pollution, have reduced the heat energy consumption, have improved the stalk cellulose degradation rate.Simplify technical process, improved enzymolysis efficiency and product yield, and can realize suitability for industrialized production.
The specific embodiment: 150kg rice straw machine is pressed into the stalk brick of 1 cubic metre of volume, and being placed on source strength is 200,000 Curie's
60Carry out radiation treatment in the Co-gamma emitter, irradiation dose 0.5～1.5 * 10
6Gy crosses 200 mesh sieves with the rice straw mechanical crushing behind the irradiation, then the straw powder is packed.
Claims (4)
1. the rice straw processing method of degraded fast, comprise with rice straw through machine be pressed into careless brick,
60Operations such as Co-gamma-rays or electron-beam accelerator radiation treatment, mechanical crushing, screening, packing is characterized in that rice straw changes its specific volume through the processing of machine pressure, adopts
60Co-γ irradiation preprocessing straw stalk brick carries out mechanical crushing again and becomes the straw powder.
2. a kind of rice straw according to claim 1 is the processing method of degraded fast, it is characterized in that employing machine pressure processing rice straw suitability for industrialized production stalk brick, makes its every cubic metre to reach 150～300 kilograms.
3. rice straw according to claim 1 is the processing method of degraded fast, it is characterized in that adopting 0.5～1.5 * 10
6Gy irradiation dose industrial treatment rice straw brick.
4. rice straw according to claim 1 is the processing method of degraded fast, it is characterized in that adopting mechanical crushing to become the straw powder to the straw after radiation treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101504905A CN102234947A (en) | 2010-04-20 | 2010-04-20 | Pretreatment method for quickly degrading rice straw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101504905A CN102234947A (en) | 2010-04-20 | 2010-04-20 | Pretreatment method for quickly degrading rice straw |
Publications (1)
| Publication Number | Publication Date |
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| CN102234947A true CN102234947A (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2010101504905A Pending CN102234947A (en) | 2010-04-20 | 2010-04-20 | Pretreatment method for quickly degrading rice straw |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561095A (en) * | 2012-02-26 | 2012-07-11 | 昆山华阳复合材料科技有限公司 | Degradable straw fiber |
| CN103589762A (en) * | 2013-11-12 | 2014-02-19 | 湖南农业大学 | Pretreatment method for improving saccharification efficiency of rape stalks |
| CN104039972A (en) * | 2011-12-22 | 2014-09-10 | 希乐克公司 | Processing of biomass material |
| CN105400844A (en) * | 2015-12-09 | 2016-03-16 | 湖南省农业科学院 | A method of producing modified rice straw powder, the modified rice straw powder and applications of the modified rice straw powder |
| CN109182391A (en) * | 2018-10-15 | 2019-01-11 | 湖南农业大学 | A method of irradiation pretreatment agricultural crop straw Biogas |
| CN116476191A (en) * | 2023-05-10 | 2023-07-25 | 华中农业大学 | Method for treating solid straw by combining calcium hydroxide and electron beam irradiation |
-
2010
- 2010-04-20 CN CN2010101504905A patent/CN102234947A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104039972A (en) * | 2011-12-22 | 2014-09-10 | 希乐克公司 | Processing of biomass material |
| CN102561095A (en) * | 2012-02-26 | 2012-07-11 | 昆山华阳复合材料科技有限公司 | Degradable straw fiber |
| CN102561095B (en) * | 2012-02-26 | 2014-05-21 | 昆山华阳复合材料科技有限公司 | Degradable straw fiber |
| CN103589762A (en) * | 2013-11-12 | 2014-02-19 | 湖南农业大学 | Pretreatment method for improving saccharification efficiency of rape stalks |
| CN105400844A (en) * | 2015-12-09 | 2016-03-16 | 湖南省农业科学院 | A method of producing modified rice straw powder, the modified rice straw powder and applications of the modified rice straw powder |
| CN105400844B (en) * | 2015-12-09 | 2019-02-15 | 湖南省农业科学院 | A kind of method producing modified straw straw powder and modified straw straw powder and its application |
| CN109182391A (en) * | 2018-10-15 | 2019-01-11 | 湖南农业大学 | A method of irradiation pretreatment agricultural crop straw Biogas |
| CN109182391B (en) * | 2018-10-15 | 2022-03-18 | 湖南农业大学 | Method for preparing biogas by irradiation pretreatment of crop straws |
| CN116476191A (en) * | 2023-05-10 | 2023-07-25 | 华中农业大学 | Method for treating solid straw by combining calcium hydroxide and electron beam irradiation |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111109 |