Mixed organic solution for trapping CO2 and SO2 acid gas through phase transformation

A technology of organic solution and acid gas, applied in separation methods, dispersed particle separation, chemical instruments and methods, etc., can solve the problem of high regeneration energy consumption, achieve high absorption capacity, stable oxidation, and high desorption rate

Active Publication Date: 2016-02-03
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention aims to solve the problem of high regeneration energy consumption in the decarburization and desulfurization of the organic amine regeneration method, and the present invention is realized through the following technical scheme

Method used

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  • Mixed organic solution for trapping CO2 and SO2 acid gas through phase transformation
  • Mixed organic solution for trapping CO2 and SO2 acid gas through phase transformation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The capture of CO by phase change 2 , SO 2 A mixed organic solution of acid gas, the mixed organic solution is composed of an organic amine absorbent and an organic solvent, the organic amine absorbent is piperazine with a mass of 25 kg, and the organic solvent is ethanol with a mass of 75 kg.

[0028] The mixed organic solution prepared in this example was tested to remove CO2 under normal temperature and pressure. 2 The efficiency reaches 97%.

Embodiment 2

[0030] The capture of CO by phase change 2 , SO 2 The mixed organic solution of acid gas, this mixed organic solution is made up of organic amine absorbent and organic solvent, and described organic amine absorbent is piperazine, and quality is 15kg, and described organic solvent is diethylene glycol monomethyl ether, and quality is 85kg.

[0031] The mixed organic solution prepared in this example was experimentally deSO at normal temperature and pressure. 2 The efficiency reaches 95%.

Embodiment 3

[0033] The capture of CO by phase change 2 , SO 2 The mixed organic solution of acid gas, the mixed organic solution is made up of organic amine absorbent and organic solvent, and described organic amine absorbent is ethylenediamine, and mass is 30kg, and described organic solvent is diethylene glycol monomethyl ether, mass It is 70kg.

[0034] The mixed organic solution prepared in this example was tested to remove CO2 under normal temperature and pressure. 2 The efficiency reaches 98%.

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Abstract

The invention relates to a mixed organic solution for trapping CO2 and SO2 acid gas through phase transformation, and belongs to the technical field of environmental protection and gas purification. The mixed organic solution is prepared from, by mass, 5-35 parts of organic amine absorbing agents and 65-95 parts of organic solvent; one of chain amines, diamines, steric hindered amines, alcohol amines and amides or mixtures of more than two of chain amines, diamines, steric hindered amines, alcohol amines and amides which are mixed in any proportion is/are adopted as the organic amine absorbing agents; one of alcohols, ethers, ketones and esters or mixtures of more than two of alcohols, ethers, ketones and esters which are mixed in any proportion is/are adopted as the organic solvent. The mixed organic solution aims at solving the problem that regeneration energy consumption is high in decarbonizing and desulfurizing of an organic amine regeneration method.

Description

technical field [0001] The invention relates to a method for capturing CO by phase change 2 , SO 2 The invention relates to a mixed organic solution of acid gas, which belongs to the technical field of environmental protection and gas purification. Background technique [0002] Environmental pollution is a topic of great concern in the world today. The emissions that cause environmental pollution mainly include COx, SO 2 , NOx and soot, among which CO 2 A large amount of emissions will lead to global warming, climate anomalies, SO 2 A large amount of discharge will cause serious environmental pollution problems such as acid rain and air pollution (such as smog). [0003] Atmospheric CO 2 , SO 2 In addition to natural phenomena, it mainly comes from the combustion and utilization of fossil fuels, such as thermal power generation, iron and steel smelting, non-ferrous metal smelting, cement and other industries. Along with the development process of social industrializa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/14
Inventor 赵文波刘佳驹张政陈媛李艳红
Owner KUNMING UNIV OF SCI & TECH
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