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A method for extracting methane from feces

A technology of excrement and extraction, applied in chemical instruments and methods, biological sludge treatment, gas fuel, etc.

Active Publication Date: 2021-03-16
吉林省富泰航环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the problems shown above, this method is based on subjecting feces to a high-temperature thermal process to obtain methane gas, then further purifying the methane gas to obtain higher concentration of methane gas, and finally collecting higher concentration of methane gas to make compressed natural gas

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  • A method for extracting methane from feces
  • A method for extracting methane from feces
  • A method for extracting methane from feces

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Embodiment Construction

[0063] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0064] Biogas is a mixture of gases that can be burned. Biogas is a flammable gas produced by anaerobic digestion of organic matter by microorganisms. The main component of biogas, methane, is an ideal gas fuel, which can be burned after being mixed with an appropriate amount of air. The calorific value of pure methane per cubic meter is 34,000 kilojoules, and the calorific value of ...

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Abstract

The invention discloses a method for extracting methane from excrement. The method comprises the following steps: injecting a preset volume of water into the excrement; after water injection is finished, evaporating the excrement at a preset temperature and then extracting to obtain first-concentration methane gas; purifying the first-purity methane gas to obtain second-concentration methane gas,wherein the second concentration is far greater than the first concentration; and collecting the second-concentration methane gas to make compressed natural gas. The generated methane gas is further purified to obtain high-concentration methane gas for manufacturing compressed natural gas, the prepared methane raw material is better, thus the situation that automobile cannot be braked halfway in automobile braking process is avoided, the problem in the prior art that the compressed natural gas cannot meet the material combustion condition of the internal combustion engine of the automobile andthe automobile cannot be braked due to the low concentration of methane in the compressed natural gas is effectively solved.

Description

technical field [0001] The invention relates to the technical field of new energy development, in particular to a method for extracting methane from feces. Background technique [0002] Biogas is a mixture of gases that can be burned. Biogas is a flammable gas produced by anaerobic digestion of organic matter by microorganisms. The main component of biogas, methane, is an ideal gas fuel, which can be burned after being mixed with an appropriate amount of air. The calorific value of pure methane per cubic meter is 34,000 kilojoules, and the calorific value of biogas per cubic meter is about 20,800-23,600 kilojoules. That is, after 1 cubic meter of biogas is completely burned, it can produce the heat equivalent to 0.7 kg of anthracite. Compared with other gases, it has better antiknock performance and is a good clean fuel. The natural gas extracted from biogas can be burned directly as fuel for internal combustion engines. The production material chain is combustion gas, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L3/08C10L3/10C02F11/00C02F11/04
CPCC02F11/00C02F11/04C10L3/08C10L3/103C10L3/104C10L3/106C10L2270/02C10L2290/08C10L2290/44Y02E50/30
Inventor 杨帆
Owner 吉林省富泰航环境科技有限公司