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Bio-gas two-stage normal-pressure decarbonization device

A biogas and decarbonization technology, which is applied to the separation of dispersed particles, chemical instruments and methods, separation methods, etc., can solve the problems of small biogas flow and cannot use medium-pressure decarbonization, and achieves low cost, simple structure, and convenient manufacture Effect

Inactive Publication Date: 2010-05-12
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to design a two-stage atmospheric pressure decarburization device for biogas that can be used under normal pressure for the problem that the biogas flow rate is small and cannot be used for medium-pressure decarburization

Method used

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Such as figure 2 shown.

[0020] A two-stage atmospheric pressure decarburization device for biogas, which is composed of at least two stacked packed towers 1, figure 2 The two-layer structure adopted in the present embodiment is illustrated by taking a two-layer packed tower as an example, and the structure with more than two layers can be deduced by analogy, wherein the bottom of the packed tower 1 at the bottom is provided with a biogas inlet 2 and a bottom absorption liquid Regeneration circulation outlet 7, the packed tower 1 at the top is provided with a biogas outlet 3, and the upper part of the packed layer 6 of each packed tower 1 is provided with an absorption liquid spray pipe 8, wherein the absorption liquid in the upper packed tower 1 is sprayed The absorption liquid ejected from shower pipe 8 can be one or more combinations of m...

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Abstract

The invention relates to a bio-gas two-stage normal-pressure decarbonization device which is characterized by at least comprising filler towers (1) formed by overlapping through two stages, wherein the bottom of the filler tower (1) positioned at a bottom layer is provided with a bio-gas inlet (2) and a bottom layer absorption liquid regenerative cycle outlet (7), the filler tower (1) positioned at a top layer is provided with a bio-gas outlet (3), the upper part of a filler layer (6) of each filler tower (1) is provided with an absorption liquid spraying pipe (8), a baffle plate is arranged between the adjacent filler towers (1), an air elevation pipe (5) which is communicated with the adjacent filler towers (1) is arranged on the baffle plate (4) in a penetrating way, a liquid drop hole is arranged on the baffle plate (4) and is connected with a liquid drop pipe (9) which introduces absorption liquid settled on the baffle plate out of the filler towers, and the liquid drop pipe (9) extends out of the filler towers (1) from the bottoms of the adjacent filler towers (1) or the bottom of the filler tower (1) at the bottom layer. The invention features simple structure, convenient manufacture and low cost.

Description

technical field [0001] The invention relates to an environmental protection device, in particular to a decarbonization device, in particular to a biogas double-stage normal-pressure decarburization device for biogas decarburization. Background technique [0002] As we all know, biogas such as biogas, digestion gas, and landfill gas contains carbon dioxide gas with a content ranging from more than 10% to more than 50%. Removing carbon dioxide from biogas can increase the amount of combustible gas. content, improve the quality of gas, and facilitate the recycling of separated carbon dioxide gas to reduce greenhouse gas emissions. [0003] At present, the commonly used decarbonization technologies include solvent absorption method and pressure swing adsorption method. Among them, solvent absorption method has become an important method in the field of decarbonization due to its advantages of thorough separation effect, less emission of combustible gas components, and low energy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/18
Inventor 陈泽智龚惠娟张孟群
Owner NANJING UNIV
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