Method for mixed bacterial strain to degrade and ferment cellulose for producing hydrogen

A technology for degrading cellulose and cellulose, applied in microorganism-based methods, fermentation, biochemical equipment and methods, etc., can solve the problems of low utilization rate of cellulose, low hydrogen production, and slow hydrogen production rate.
CN101008018AInactive Publication Date: 2007-08-01HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2007-08-01
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a method for degrading cellulose and generating hydrogen through fermentation with composited bacteria. It solves problems of low availability ratio, slow hydrogen generation speed, low hydrogen generation in current bacteria fermentating straw cellulose hydrogen generating technology. The method comprises following steps: (1) inoculating cellulose degradation and hydrogen generation bacteria X9 and high- effective hydrogen generation bacteria B49 into fermentating liquid which takes cellulose as substrate; (2) carrying out anaerobic fermentation at 35- 42 Deg. C, pH 3.0- 9.0 and with nitrogen gas as carrier gas for 4- 8 hours, and getting a large amount of hydrogen. The invention is characterized by simple operation, convenient managementm high hydrogen generation YH2 1760- 1810.3 ml per volume fermentation liquid, hydrogen generating speed of 51.2- 55.4 mmolH2 / gdrycell. H and high cellulose availability ratio of 74.5- 77.6%.
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Description

technical field

[0001] The invention relates to a method for degrading cellulose and fermenting hydrogen production. Background technique

[0002] As a clean high-grade secondary energy resource, hydrogen has attracted more and more attention from all over the world. Among various hydrogen production methods, the use of microorganisms to ferment biomass (organic wastewater, straw agricultural and forestry waste, organic waste, etc.) to produce hydrogen has multiple advantages such as pollution control, environmental protection and production capacity, and has broad development prospects. research topics of interest. Among them, the research on the use of straw-like lignocellulose and other cheap biomass to ferment hydrogen is particularly attractive, but the existing technology of microbial fermentation low-volume defects. Contents of the invention

[0003] The purpose of the present invention is to solve the defects of low cellulose utilization rate, slow hydrogen prod...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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