Research method for improving biomass degradation and sugar alcohol conversion efficiency of cotton stalk
A technology for biomass degradation and conversion efficiency, applied in the field of bioenergy development
Inactive Publication Date: 2019-02-22
HUNAN AGRICULTURAL UNIV
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Problems solved by technology
At present, there are few reports on the relationship between cotton stalk pretreatment on cell wall components and enzymatic sugar production efficiency
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[0135] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0136] 1 Materials and methods
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Abstract
The invention discloses a research method for improving biomass degradation and sugar alcohol conversion efficiency of cotton stalk. Straw cell wall components and fine structures thereof and pretreatment degradation efficiency after steam explosion are studied, the relationship between the straw cell wall components and fine structures thereof and pretreatment degradation efficiency is discussedand analyzed, and a theoretical basis is provided for the effective use of the cotton stalk. It is found by the research and study of upland cotton and island cotton stalk, the island cotton is more suitable for serving as an energy plant compared with the upland cotton, and bioethanol is produced by using biomass energy. It is determined that a key structural factor of the cell wall component that affects the degradation efficiency of the cotton stalk is the degree of polymerization of cellulose. A steam explosion +0.25% H2SO4 two-step method improves the degradation efficiency of an originalsample by 5-6 times by greatly reducing the polymerization degree of the cellulose.
Description
technical field [0001] The invention belongs to the technical field of bioenergy development, and in particular relates to a research method for improving cotton stalk biomass degradation and sugar alcohol conversion efficiency. Background technique [0002] With the continuous development of the global economy, human consumption of energy is increasing. At present, the main sources of energy are still fossil energy such as coal and petroleum. Coal and oil are non-renewable energy sources. Overexploitation and burning of coal and oil have caused many countries to experience unprecedented energy and environmental pressures, such as global warming caused by the greenhouse effect, the impact of PM2.5 on human health, and acid rain. ecological hazards, etc. Western economically developed countries realized earlier that the era of traditional energy depletion is coming, and consciously transferred their high-energy-consuming industries to other countries, which undoubtedly acce...
Claims
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IPC IPC(8): C12P19/14C12P19/02C12P7/10
CPCC12P7/10C12P19/02C12P19/14C12P2203/00Y02E50/10
Inventor 黄妤乔波
Owner HUNAN AGRICULTURAL UNIV
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