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Production method of biogas

A biogas and biogas residue technology, applied in biological sludge treatment, waste fuel, fermentation, etc., can solve the problems of low gas production and short duration of gas production, and achieve the effect of high gas production

Inactive Publication Date: 2015-03-04
柳州东侯生物能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for preparing biogas, which can effectively prolong the duration of biogas production and increase its gas production, thereby solving the problems of short gas production duration and low gas production in the existing domestic biogas production technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The following raw materials are used in this embodiment: 3.0 kg of switchgrass, 4.2 kg of sorghum stalks, 5.0 kg of poultry manure, 1.5 kg of biogas residue and 1.5 kg of biological bacteria.

[0020] Its preparation method comprises the following steps:

[0021] A. The above-mentioned switchgrass and sorghum stalks were crushed respectively, and water was added to adjust the concentration to 20%, and then acidified at a constant temperature of 30°C to 40°C for 5 days to obtain an acidified feed solution;

[0022] B. Add the above-mentioned poultry manure, biogas residue and biological bacteria to the acidified feed liquid prepared in step A, mix evenly, and ferment at a constant temperature at 50°C to 60°C;

[0023] C. Collect the gas produced in the constant temperature fermentation process of step B.

[0024] Compared with the existing biogas production, the gas production time of this embodiment is extended by 40 days, and the gas production rate is increased by 70...

Embodiment 2

[0026] The following raw materials are used in this embodiment: 3.3 kg of switchgrass, 4.5 kg of sorghum straw, 4.6 kg of poultry manure, 2.0 kg of biogas residue and 1.0 kg of biological bacteria.

[0027] Its preparation method comprises the following steps:

[0028] A. The above-mentioned switchgrass and sorghum stalks were crushed respectively, and water was added to adjust the concentration to 20%, and then acidified at a constant temperature of 30°C to 40°C for 5 days to obtain an acidified feed solution;

[0029] B. Add the above-mentioned poultry manure, biogas residue and biological bacteria to the acidified feed liquid prepared in step A, mix evenly, and ferment at a constant temperature at 50°C to 60°C;

[0030] C. Collect the gas produced in the constant temperature fermentation process of step B.

[0031] Compared with the existing biogas production, the gas production time of this embodiment is extended by 39 days, and the gas production rate is increased by 70%...

Embodiment 3

[0033] The following raw materials are used in this embodiment: 3.5 kg of switchgrass, 4.0 kg of sorghum stalks, 4.5 kg of poultry manure, 2.5 kg of biogas residue and 2.0 kg of biological bacteria.

[0034] Its preparation method comprises the following steps:

[0035] A. The above-mentioned switchgrass and sorghum stalks were crushed respectively, and water was added to adjust the concentration to 20%, and then acidified at a constant temperature of 30°C to 40°C for 5 days to obtain an acidified feed solution;

[0036] B. Add the above-mentioned poultry manure, biogas residue and biological bacteria to the acidified feed liquid prepared in step A, mix evenly, and ferment at a constant temperature at 50°C to 60°C;

[0037] C. Collect the gas produced in the constant temperature fermentation process of step B.

[0038] Compared with the existing biogas production, the gas production time of this embodiment is extended by 45 days, and the gas production rate is increased by 71...

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PUM

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Abstract

The invention discloses a production method of biogas, belonging to the technical field of biomass energy production. The biogas is prepared from the following raw materials in parts by weight: 30-35 parts of panicum virgatum, 40-45 parts of sorghum stalks, 45-50 parts of animal dung, 15-25 parts of biogas residues and 10-20 parts of biological bacteria. The production method comprises the following steps of respectively crushing the panicum virgatum and the sorghum stalks, adding water to regulate the concentration to 20%, and then, acidizing at the constant temperature of 30-40 DEG C for 5 days to obtain an acidized solution; adding the animal dung, the biogas residues and the biological bacteria into the acidized solution, uniformly mixing all the components, and fermenting at the constant temperature of 50-60 DEG C; and collecting gases generated in the constant-temperature fermentation process. Compared with the existing biogas production technology, the production method disclosed by the invention has the advantages that the biogas production lasting time is longer, and the biogas yield is higher.

Description

technical field [0001] The invention relates to the technical field of biomass energy production, in particular to a method for preparing biogas. Background technique [0002] Biogas is a kind of combustible gas produced by various organic substances through the fermentation of microorganisms in the isolation of air (reducing conditions) and at a suitable temperature and pH value. Biogas belongs to secondary energy and is a renewable energy. [0003] At present, the existing domestic biogas production technology still stays at the technical stage of short gas production duration and low gas production. Contents of the invention [0004] The invention provides a method for preparing biogas, which can effectively prolong the duration of biogas production and increase its gas production, thereby solving the problems of short gas production duration and low gas production in the existing domestic biogas production technology . [0005] In order to solve the problems of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P5/02C02F11/04
CPCY02E50/30
Inventor 韦泉
Owner 柳州东侯生物能源科技有限公司
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