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Silica gel modified desulfurizing agent and preparation method thereof

A desulfurization agent and modification technology, applied in the field of desulfurization agent, can solve the problems of insufficient sulfur capacity and unsatisfactory desulfurization depth, etc., and achieve the effects of enhanced desulfurization effect, more recycling times, and good adsorption performance

Active Publication Date: 2018-05-15
通化鑫鸿新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the sulfur capacity and desulfurization depth of commonly used ordinary porous silica gel are not high enough, and the desulfurization depth is not satisfactory. It is necessary to modify ordinary porous silica gel to increase its sulfur capacity and desulfurization depth.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A silica gel modified desulfurizer, which is made up of the following raw materials in parts by weight:

[0027] Ethyl orthosilicate 230, aluminum dihydrogen phosphate 4, polyvinyl alcohol 2, ethylene bisstearamide 1, tetrabutyl titanate 20, cyanoethyl cellulose 3, lime powder 5, sodium myristate soap 3 , Potassium Monododecyl Phosphate 1, Palm Wax 3, Ammonium Ferrous Sulfate 0.2, Dibutyltin Dilaurate 1, Trimethylolpropane 2, Barium Stearate 4, 1-Hydroxyethyl-2-Oil Base imidazoline 1, tin dioxide 8.

[0028] A preparation method of silica gel modified desulfurizer, comprising the following steps:

[0029] (1) Take palm wax, add it to 8 times its weight in dichloromethane, put it into an oil bath with a temperature of 120°C, keep it warm and stir for 10 minutes, add barium stearate, stir to normal temperature, and get dichloromethane solution;

[0030] (2) Get trimethylolpropane, join in the dimethylformamide of its weight 10 times, stir evenly, obtain alkyl amide sol...

Embodiment 2

[0038] A silica gel modified desulfurizer, which is made up of the following raw materials in parts by weight:

[0039] Ethyl Orthosilicate 26, Aluminum Dihydrogen Phosphate 3, Polyvinyl Alcohol 1, Ethylene Bis Stearamide 0.7, Tetrabutyl Titanate 15, Cyanoethyl Cellulose 2, Lime Powder 3, Sodium Myristate Soap 2 -3. Potassium monododecyl phosphate 0.8, Palm wax 2-3, Ferrous ammonium sulfate 0.1, Dibutyltin dilaurate 0.5, Trimethylol propane 1, Barium stearate 2, 1-Hydroxyethyl -2-oleyl imidazoline 0.7, tin dioxide 5.

[0040] A preparation method of silica gel modified desulfurizer, comprising the following steps:

[0041] (1) Take palm wax, add it to 6 times its weight in dichloromethane, put it into an oil bath with a temperature of 110°C, keep it warm and stir for 7 minutes, add barium stearate, and stir to normal temperature to get dichloromethane solution;

[0042] (2) Get trimethylolpropane, join in the dimethylformamide of its weight 6 times, stir evenly, obtain alky...

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Abstract

The invention discloses a silica gel modified desulfurizing agent. The silica gel modified desulfurizing agent consists of the following raw materials in parts by weight: 26-30 parts of tetraethylortho silicate, 3-4 parts of aluminium dihydrogen phosphate, 1-2 parts of polyvinyl alcohol, 0.7-1 part of ethylene bis stearamide, 15-20 parts of tetrabutyl titanate, 2-3 parts of cyanoethyl cellulose, 3-5 parts of lime powder, 2-3 parts of sodium myrastate, 0.8-1 part of lauryl alcohol phosphoric acid ester potassium, 2-3 parts of palm wax, 0.1-0.2 part of ammonium ferrous sulfate, 0.5-1 part of dibutyltin dilaurate, 1-2 parts of trimethylolpropane, 2-4 parts of barium stearate, 0.7-1 part of 1-ethoxyl-2-oleic imidazoline and 5-8 parts of stannic oxide. The finished product is large in specificsurface area, high in activity, good in desulfurization performance, high in recycling frequency, good in stability and excellent in overall performance.

Description

technical field [0001] The invention belongs to the field of desulfurizers, and in particular relates to a silica gel modified desulfurizer and a preparation method thereof. Background technique [0002] Coke oven gas is an industrial gas rich in H2, CH4, and CO. Its industrial applications are mainly hydrogen extraction, direct combustion, and CCPP power generation. The quality of coke oven gas in downstream processes has its own requirements. There is a considerable amount of hydrogen sulfide in coke oven gas. Hydrogen sulfide is a kind of polluting substance. Direct emission will pollute the atmosphere. Its chemical properties are active, weakly acidic and reducing, and it is easy to interact with downstream substances and cause damage to downstream processes. greater impact. Therefore, the general coke oven gas utilization process will have certain requirements on the sulfur content of the coke oven gas entering the process. Even if it is directly burned, hydrogen sulfi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10K1/32
CPCC10K1/32
Inventor 张金风
Owner 通化鑫鸿新材料有限公司
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