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Soybean straw industrialization methane production and method for extracting cellulose and lignin

A technology for soybean straw and cellulose, which is applied in the fields of renewable energy and resources and environment, can solve problems such as unfavorable production of small and medium-sized biogas, and achieve significant economic and social benefits.

Inactive Publication Date: 2010-01-20
陈福库
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Problems solved by technology

At the same time, Heilongjiang Province is an alpine region, and the lowest temperature in winter is -20~-30°C, which is extremely unfavorable for the production of small and medium-sized biogas in rural areas

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  • Soybean straw industrialization methane production and method for extracting cellulose and lignin

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Embodiment

[0031] The annual processing of soybean straw is 30,000 tons. As a production unit, if the moisture content of the straw is 20%, the processing of soybean straw is 4.17 tons per hour, and its absolute dry weight is 3.33 tons. The cycle of aerobic fermentation and acidification fermentation is calculated as 15 days, and the cycle of biogas fermentation is calculated as 25 days. The volume of each tank is 50 cubic meters. According to the calculation of material balance, 90 acidification fermentation tanks and 210 biogas fermentation tanks are required, totaling 300, with a total volume of 15,000 cubic meters. A continuous steam explosion machine with a processing capacity of 5 tons / hour is selected for steam explosion treatment. As the hydrocyclone, a 6-10 stage hydrocyclone with a processing capacity of 12-15 cubic meters per hour is selected. The separation ratio of the spiral separator is 60-75% of the clear liquid, 20-30% of the suspension liquid, and 10-15% of the sludge,...

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Abstract

The invention provides a technical method which uses soybean straw as main raw material to industrially produce methane in large scale, and simultaneously extracts cellulose and lignin from waste residue from fermented and decomposed organisms so that soybean straw is fully utilized, the economic benefit is increased and the industrialization production benefit is obvious. The produced methane can be directly used for generating electricity, resident gas and the like; the methane also can be compressed so that carbon dioxide gas is liquefied and separated and the content of the methane in the methane reaches more than 85%; the methane is stored in high pressure and used for environmental protection material of automobiles. The extracted cellulose and lignin are used for papermaking and chemical industry raw materials.

Description

technical field [0001] The invention relates to a method for industrially producing biogas from soybean straw and extracting cellulose and lignin, and belongs to the technical field of renewable energy and resource environment. Background technique [0002] At present, global oil resources are increasingly scarce and oil prices remain high. Biomass biogas technology as a renewable energy source has been applied and developed for decades, but most of them are small and medium-sized farmer-style production methods. The first purpose is to treat livestock manure and some crop straws to reduce environmental pollution; the second is to generate biogas to replace part of the energy. [0003] Heilongjiang Province is the main soybean producing area in my country. From 2006 to 2008, the average soybean planting area was 55 million mu, with an annual output of 9 million tons of soybean straw, of which about 20-25% were used for livestock feed, and about 10-15% were used for rural fir...

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Application Information

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IPC IPC(8): C12P5/02D21C5/00C07G1/00C05F5/00C02F3/02
CPCY02E50/343Y02E50/30
Inventor 陈福库崔振民孙艳富陈辰
Owner 陈福库
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