Desulfurization solvent

A technology of solvent and defoamer, which is applied in the field of compound high-efficiency desulfurization solvent and its preparation, and can solve problems affecting the effect of desulfurization

Inactive Publication Date: 2008-09-17
顾泽元
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is: present MDEA desulfurization solvent exists and CO 2

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0015] 95 parts of N-methyldiethanolamine with a purity of 98wt%, 0.2 parts of dimethyl silicone oil, 0.05 parts of dimethylthiourea, 0.2 parts of 2,6-di-tert-butylphenol and 6 parts of phosphoric acid were stirred in a stirring tank to prepare into a uniform solution, that is, the desulfurization solvent.

example 2

[0017] 93.5 parts of N-methyldiethanolamine with a purity of 99 wt%, 0.1 part of simethicone, 0.03 part of 1,4-butanedithiol, 0.05 part of p-hydroxyanisole and 4 parts of butyric acid were stirred in a stirring tank to prepare into a uniform solution, that is, the desulfurization solvent.

example 3

[0019] 96 parts of N-methyldiethanolamine with a purity of 95 wt%, 0.1 part of simethicone, 0.03 part of thiodiethylene glycol, 0.05 part of hydroquinone and 4 parts of polyether phosphoric acid were stirred in a stirring tank to form a uniform solution, that is, the desulfurization solvent.

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PUM

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Abstract

The invention relates to a normal temperature high efficiency hydrogen sulfide remover and preparation method, in particular to a complex formulation type high efficiency desulphurization solvent and preparation method, which comprises n-methyldiethanolamine, defoamer, corrosion inhibitor, antioxidant, and strengthening agent; wherein, the content of the n-methyldiethanolamine is 93.5 to 96wt% in the desulphurization solvent; the preparation method of the desulfurizing agent is that 93.5 to 96 portion (the portion below is mass portion) of n-methyldiethanolamine, 0.05 to 0.2 portion of defoamer, 0.02 to 0.05 portion of corrosion inhibitor, 0.05 to 0.2 portion of antioxidant and 3 to 6 portion of strengthening agent are stirred in the stirred tank, and the even solution is acquired, which is desulphurization solvent. The normal temperature high efficiency hydrogen sulfide remover has an advantage of resolving the prior MDEA desulphurization solvent drawback of inferior performance of desulfurization caused by reaction with CO2.

Description

technical field [0001] The invention relates to a high-efficiency remover of hydrogen sulfide at room temperature and a preparation method thereof, in particular to a compound type high-efficiency desulfurization solvent and a preparation method thereof. Background technique [0002] At home and abroad, more and more attention has been paid to the research on the treatment of hydrogen sulfide waste gas. The desulfurization methods can be divided into dry method and wet method according to its weak acidity and strong reducing property. The dry method is to use the reducibility and flammability of hydrogen sulfide to desulfurize or directly burn with solid oxidant or adsorbent, including the Claus method, iron oxide method, activated carbon method and Carter Sulph method. The wet method is divided into liquid absorption method and absorption oxidation method according to the different desulfurization solvents used. The liquid absorption method includes a chemical absorption m...

Claims

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Application Information

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IPC IPC(8): B01D53/14
Inventor 顾泽元龚六兴陈政顾晓峰张炜王玉莲
Owner 顾泽元
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