Method for pretreatment of biomass by water-ammonia coupling

A technology for pretreatment of biomass and biomass, applied in fermentation and other directions, can solve problems such as many by-products and high equipment requirements, achieve high recovery rate, solve environmental problems, and improve the efficiency of enzymatic hydrolysis and the effectiveness of enzymes.
CN103993053AActive Publication Date: 2014-08-20GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
Publication Date
2014-08-20

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Abstract

The invention provides a method for pretreatment of biomass by water-ammonia coupling. With lignocelluloses biomass as the raw material, the method is characterized by adopting a high temperature liquid water-ammonia process two-step pretreatment technology. The method specifically includes: firstly using high temperature and high pressure liquid water to hydrolyze the biomass so as to obtain a lignin and cellulose dominated solid product, then conducting ammonia hydrolysis on the solid product, further separating lignin, and then performing enzymolysis. With the advantages of environmental protection and high efficiency, the method provided by the invention can realize efficient and complete utilization of lignocelluloses biomass, the sugar loss is small, and the recovery rate is high. Through the process involved in the invention, resource utilization of forestry, agricultural and sugar industry waste can be achieved, and at the same time the environmental problems caused by waste can be solved.
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Description

technical field

[0001] The invention relates to the technical fields of biology and energy chemical industry, in particular to a biomass pretreatment method capable of realizing efficient and full utilization of various hydrolyzed products after lignocellulose is hydrolyzed. Background technique

[0002] Biomass energy is an important part of new energy, and it is a kind of natural and abundant renewable energy. Different from traditional direct combustion, the use of biomass to produce liquid fuels and chemical crafts can obtain higher added value and has broad prospects. The production of fuels and chemicals from sugar platforms has become a current research trend, and the production of sugar intermediates from lignocellulose hydrolysis has become an important basis. Lignocellulose hydrolysis refers to the process of hydrolyzing cellulose and hemicellulose into six-carbon sugars and five-carbon sugars under certain catalyst and reaction conditions. Dilute acid hydrolysis...

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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