Pretreatment process of biogas fermentation system

A biogas fermentation and pretreatment technology, applied in the field of biogas fermentation system, can solve the problems affecting the anaerobic fermentation rate of lignocellulosic raw materials, low raw material utilization rate, unfavorable environmental protection, etc., so as to improve biodegradation performance and biogas production rate , Improve the effect of anaerobic biological digestion efficiency

Inactive Publication Date: 2015-11-04
湖北绿鑫生态科技有限公司
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Problems solved by technology

[0003] The existing biogas fermentation system has the problems of relatively low gas production efficiency and long fermentation cycle. How to process lignocellulosic raw materials into raw materials with high gas production efficiency, short fermentation cycle, and convenient feeding and discharging through simple pretreatment technology is an important issue. The key to restricting the direct and efficient biogasification of lignocellulosic raw materials
The existing pretreatment process is mainly based on alkali treatment, but the alkalinity of the material increases after alkali treatment, which has an inhi

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  • Pretreatment process of biogas fermentation system

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[0013] It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0014] refer to figure 1 , an embodiment of the pretreatment process of the biogas fermentation system of the present invention is proposed, which can pretreat the lignocellulosic raw material 1 with high lignin content that needs to be subjected to biogas fermentation. Wherein, the lignocellulosic raw material 1 includes dry straw, that is, the general term for the stems and leaves (ears) of mature crops, such as wheat, rice, corn, potatoes, rape, cotton, sugarcane, peanuts and other crops after the seeds are harvested.

[0015] The process flow of the pretreatment process is as follows: the recovered lignocellulosic raw material 1 is sent to the unpacking and coarse powder machine 2 for cutting and coarse pulverization, and the length of the lignocellulosic raw material 1 after cutting and pulverizing is about...

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Abstract

The present invention discloses a pretreatment process of a biogas fermentation system. The process can pretreat lignocellulosic feedstock with high lignin content for biogas fermentation and is as follows: feeding recovered lignocellulosic feedstock to an unpacking crude powder machine for cutting and rough grinding; then cut and crushed lignocellulosic feedstock to the a plug flow decomposition generation tank provided with a central plug flow agitator for preliminary infiltration decomposition, wherein the plug flow decomposition generation tank is provided with reflux biogas, and the temperature in the plug flow decomposition generation tank can be controlled by waste heat form thermoelectricity combined production or other heat sources; slowly advancing the lignocellulosic feedstock through the central plug flow agitator, outputting the feedstock from the end of the plug flow decomposition generation tank, and sending the feedstock into a double helix of thermal decomposition kneading machine for thermal decomposition and knead operation to each a pasty state; and pumping the pasty lignocellulosic feedstock by a screw pump into an anaerobic reactor.

Description

technical field [0001] The invention relates to the technical field of a biogas fermentation system, in particular to a pretreatment process of a biogas fermentation system. Background technique [0002] While grain production continues to increase, the processing of wood fiber materials such as crops after harvest has become a particularly prominent problem. More than 30% of crop fiber materials are left idle every year. Although many supporting measures have been introduced in various places, it still cannot solve a large number of The status quo of crop fiber materials being idle, discarded, and burned has resulted in waste of resources and serious pollution to the environment. To solve the problem of idle fiber materials, it is necessary to find ways to use fiber materials extensively. Biogas fermentation production is the solution One of the best ways to deal with fiber materials is gradually becoming a key link in the development of eco-agricultural circular economy. ...

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Application Information

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IPC IPC(8): C12P5/02
CPCY02E50/30Y02P20/129
Inventor 熊炜赖纳·卡伦李进锋
Owner 湖北绿鑫生态科技有限公司
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