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Total sulfides removing solvent and preparation thereof

A technology of sulfur solvent and preparation steps, applied in the field of desulfurization solvent and preparation thereof, can solve problems such as insufficient comprehensive desulfurization capacity, and achieve the effects of solving pollution and treatment difficulties, saving material consumption and energy consumption

Inactive Publication Date: 2008-09-17
王胜利
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide an improved N-methyldiethanolamine (MDEA) desulfurization solution, which overcomes the insufficient comprehensive desulfurization ability of the existing MDEA desulfurization solution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Add 30 kg of N-methyldiethanolamine (MDEA) into the reactor, then add 0.5 kg of simethicone, methicone, and sulfolane to the reactor while stirring, and then add 69.5 kg of the mixture mixed according to 1:1. After that, continue to stir the mixture evenly. Sampling inspection shows that the product is light yellow or milky white slightly viscous liquid. The liquid is completely miscible with water, not easy to foam, and has good stability.

Embodiment 2

[0022] Add 30 kg of N-methyldiethanolamine (MDEA) into the reaction kettle, and then add 0.5 kg of simethicone oil, monoethanolamine, sterically hindered amine, and isopropanolamine into the reaction kettle while stirring according to the ratio of 1:1: 1 Mixed mixture 69.5kg, after adding, continue to stir the mixed solution evenly. Sampling inspection shows that the product is light yellow or milky white slightly viscous liquid. The liquid is completely miscible with water, not easy to foam, and has good stability.

Embodiment 3

[0024] Add 30 kg of N-methyldiethanolamine (MDEA) into the reactor, then add 0.5 kg of simethicone oil, sulfolane, and monoethanolamine to the reactor while stirring, and then add 69.5 kg of a mixture of 1:1 mixture, after the addition, Continue to stir the mixture evenly. Sampling inspection shows that the product is light yellow or milky white slightly viscous liquid. The liquid is completely miscible with water, not easy to foam, and has good stability.

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PUM

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Abstract

The invention discloses a desulfurizing total sulfur solvent, which comprises n-methyldiethanolamine (MDEA), defoamer and activator; wherein, the content of the n-methyldiethanolamine is 30 to 95wt% in the decarburization solvent; the content of the defoamer is 0.1 to 0.5wt% in the decarburization solvent; the content of the activator is 5 to 69.5wt% in the decarburization solvent. The desulfurizing total sulfur solvent has the advantages of resolving the prior desulfurizing total sulfur solvent drawback that hydrogen sulfide can not be removed and alkaline solution is required to remove hydrogen sulfide in the subsequent handling, low material and energy consumption, and no environmental pollution and easy process of waste alkaline residue.

Description

technical field [0001] The invention relates to the technical field of gas desulfurization, in particular to a total sulfur removal solvent and a preparation method thereof. Background technique [0002] At present, more and more attention has been paid to the research on the treatment of hydrogen sulfide waste gas at home and abroad. The desulfurization method can be divided into dry method and wet method according to its weak acidity and strong reducing property. [0003] 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. [0004] The wet method is divided into two types according to the different desulfurizers used: liquid absorption method and absorption oxidation method. The liquid absorption method includes a chemical absorption method using an alkaline solution, a physical absorpt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/14
Inventor 王胜利
Owner 王胜利
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