Biogas purification membrane bioreactor and biogas purification process system thereof

A membrane bioreactor and reactor technology are applied in the field of biogas purification process systems, which can solve the problems of high energy consumption and secondary environmental pollution, and achieve the effects of strong environmental adaptability, enhanced mass transfer speed, and uniform distribution.

Pending Publication Date: 2019-06-14
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But conventional CO 2 / CH 4 Separation membranes cannot completely remove CO 2 , and high energy consumption, easy to cause secondary environmental pollution and other characteristics

Method used

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  • Biogas purification membrane bioreactor and biogas purification process system thereof
  • Biogas purification membrane bioreactor and biogas purification process system thereof
  • Biogas purification membrane bioreactor and biogas purification process system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 and 2 As shown, a membrane bioreactor for biogas purification includes a reactor body 1, the reactor body 1 is a cuboid with closed ends, its height is 25 mm, its length is 250 mm, its width is 70 mm, and its total volume is 0.44 L. The effective volume is 0.27L; the shape can be flexibly selected as a cylinder according to actual needs, and the material is transparent and sealed plexiglass, and polyethylene, polypropylene or polyvinyl chloride can also be used.

[0033] The reactor body 1 is divided into an upper shell 2 and a lower shell 3 , the upper shell 2 and the lower shell 3 form a reaction tank inside, a liquid phase chamber in the upper shell 1 , and a gas phase chamber in the lower shell 2 . The top of the upper shell 2 is provided with a reactor circulating water inlet 4 and a reactor circulating water outlet 5. The reactor circulating water inlet 4 and the reactor circulating water outlet 5 are respectively located at the two ends of the u...

Embodiment 2

[0038] A membrane bioreactor for biogas purification, including a reactor body 1, the reactor body 1 is a cuboid with two ends closed, its height is 50mm, its length is 500mm, its width is 140mm, its total volume is 0.88L, and its effective volume is The volume is 0.54L, and the effective volume is 0.27L; the shape can be flexibly selected as a cylinder according to actual needs, and the material is transparent and sealed organic glass, and polyethylene, polypropylene or polyvinyl chloride can also be used.

[0039] The reactor body 1 is divided into an upper shell 2 and a lower shell 3 , the upper shell 2 and the lower shell 3 form a reaction tank inside, a liquid phase chamber in the upper shell 1 , and a gas phase chamber in the lower shell 2 . The top of the upper shell 2 is provided with a reactor circulating water inlet 4 and a reactor circulating water outlet 5. The reactor circulating water inlet 4 and the reactor circulating water outlet 5 are respectively located at t...

Embodiment 3

[0044] Such as image 3 As shown, a biogas purification process system includes the membrane bioreactor for biogas purification of Example 1, a circulating fluid storage bottle 11, a peristaltic pump 10, a pulse damper 13, a liquid phase sampling port 14, a gas cylinder 15, a gas Flow meter 16, water bath 17, lighting system 12; circulating fluid storage bottle 11 is located in water bath 17, and is connected with peristaltic pump 10, pulse damper 13, reactor circulating water inlet 4 of reactor body 1 in turn, and then through The reactor circulating water outlet 5 is connected back to the circulating fluid storage bottle 11; the gas cylinder 15 is connected to the reactor inlet 6 of the reactor body 1 through a gas flow meter 16, and the purified biogas is provided with an air bag through the gas outlet 7 For collection; the lighting system 12 is arranged at the upper end outside the reactor body.

[0045] During the biogas purification process, the peristaltic pump 10 pump...

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Abstract

The invention discloses a biogas purification membrane bioreactor and a biogas purification process system thereof. The bioreactor comprises a reactor body, wherein the reactor body comprises an uppercasing and a lower casing; the top of the upper casing is provided with a reactor circulation water inlet and a reactor circulation water outlet; a reactor air inlet and a reactor air outlet are formed in the bottom of the lower casing; a reaction groove is formed inside the upper casing and the lower casing; a liquid phase chamber is arranged inside the upper casing; a gas phase chamber is arranged in the lower casing; silicon rubber gaskets are arranged between the gas phase chamber and the liquid phase chamber; a flat plate membrane is arranged between the silicon rubber gaskets; microalgae is attached onto the flat plate membrane. The bioreactor uses the flat plate bioreactor for reducing the mass transfer resistance of the gas; the mass transfer efficiency of the biogas is improved;during the biogas purification, the microalgae can also be enriched; available biomass is obtained; the reactor has a simple structure, is convenient to operate, and has good sealing performance.

Description

technical field [0001] The invention belongs to the field of sustainable development and membrane bioreactors, and in particular relates to a biogas purification membrane bioreactor device and a biogas purification process system. Background technique [0002] Biogas is a kind of clean and renewable energy. Its components are mainly methane and carbon dioxide, and contain a small amount of oxygen, hydrogen, nitrogen, hydrogen sulfide, etc., among which CH 4 The content is 50%-70%, CO 2 The content is 30%-50%. CO in biogas 2 The energy density and calorific value of biogas are reduced, and the scope of utilization of biogas is limited. Biogas is purified into bio-natural gas (BNG), which can be used as fuel in vehicles, incorporated into natural gas pipeline networks, fuel cells, and chemical raw materials. Biogas purification refers to the removal of impurity components in biogas, making it into high-quality CH with high methane content, calorific value and quality of imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12C10L3/10
CPCY02W10/10
Inventor 陆勇泽陈悦李昕朱光灿余冉殷玥孙骥朱麒润
Owner SOUTHEAST UNIV
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