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An acid gas trapping agent and an absorbent containing the trapping agent

A technology of acid gas and collector, applied in the field of separation, can solve the problems of solvent erosion of materials, small absorption capacity, high regeneration heat, etc., and achieve the effect of high absorption capacity and low concentration absorption capacity

Active Publication Date: 2015-08-19
JIANGSU DAXIN ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, in the normal pressure state, or more specifically in the treatment of flue gas containing acid gas, the single-component absorbent MEA is the most preferred, but its absorption performance needs to be further improved, there are still Disadvantages such as small absorption capacity, high regeneration heat, and solvent erosion of materials

Method used

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  • An acid gas trapping agent and an absorbent containing the trapping agent
  • An acid gas trapping agent and an absorbent containing the trapping agent
  • An acid gas trapping agent and an absorbent containing the trapping agent

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Experimental program
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Effect test

Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0016] Solution preparation:

[0017] (1) First of all, according to the needs, directly purchase the corresponding collector raw materials.

[0018] (2) Then, under normal temperature and normal pressure, an appropriate amount of collector raw material is weighed and mixed with water to prepare an absorbent.

[0019] Its preparation standard is as follows:

[0020]

[0021] Wherein the structural formula of formula I, formula II-5 is as follows:

[0022]

[0023] Absorbent Capacity Test:

[0024] according to figure 1 As shown in , set up the absorption capacity measurement device.

[0025] The prepared solution of a compound having a triaminetetracarbonate-butyl structure at a certain concentration is loaded into the absorption reactor 3 respectively.

[0026] At room temperature, open the pressure reducing valve and inlet valve of gas cylinder ...

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Abstract

The invention relates to the field of separation technologies, in particular to an acidic gas trapping agent and an absorbent containing the same. The trapping agent has a three-ammonia four-carbon tert-butyl group molecular structure or a symmetrical dumbbell type molecular structure containing two three-ammonia four-carbon tert-butyl groups. Compared with that of the conventional acidic gas trapping technology, a three-ammonia four-carbon tert-butyl group structural compound solution is used for trapping acidic gas and has the absorptive capacity which is far higher than that of the conventional absorbent; and the acidic gas trapping agent has the characteristics of low concentration and high absorptive capacity and is high in performance.

Description

technical field [0001] The invention relates to the technical field of separation, in particular to an acid gas trapping agent and an absorbent containing the trapping agent. Background technique [0002] Global warming and environmental pollution are becoming more and more serious, which have attracted great attention from all over the world. Acid gases such as carbon dioxide and hydrogen sulfide are considered to be the main pollutants that need to be captured and recycled due to their greenhouse effect, high toxicity and odor. Capturing carbon dioxide in exhaust gas and other mixed gases, reducing its emissions, realizing a low-carbon economy, and reducing the concentration of carbon dioxide in the atmosphere are common problems and challenges faced by mankind. It is the basic requirement of environmental protection to recover the hydrogen sulfide in the mixed gas such as exhaust gas to meet the environmental protection emission standard. Various high-efficiency, low-ene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/78
Inventor 陆建刚花爱春许正文承玲林凤英樊璠
Owner JIANGSU DAXIN ENVIRONMENTAL SCI & TECH