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Capturing and eliminating dry powder for efficiently removing hydrogen sulfide gas, and preparation method thereof

A technology for hydrogen sulfide and dry powder consumption is applied in chemical instruments and methods, separation methods, dispersed particle separation and other directions, which can solve the problems of low hydrogen sulfide removal rate and secondary pollution, and achieve good application prospects, high removal efficiency and good The effect of technical effects

Active Publication Date: 2019-04-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the technical problems to be solved by the present invention is the problem of low hydrogen sulfide removal rate in the prior art and easy to cause secondary pollution. A new efficient hydrogen sulfide gas removal dry powder is provided, which has high hydrogen sulfide removal rate, The advantages of not easy to cause secondary pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This implementation provides a dry hydrogen sulfide gas capture and elimination powder. The specific preparation method is: (1) Mix 1000g of granular activated carbon with 2L of deionized water, wash with water at 50°C for 4h, and then dry at 110°C for 10h Standby; (2) get the deionized water (solvent) mixing of gac 500g and 1000g after washing and drying, then add 5.0g FeCl 3 , 5.0gCuCl 2 and 5.0 g ZnCl 2 Composed modifier and 0.08g tetrabutylammonium bromide (accelerator), reacted at 60°C for 8h; (3) Turn off the heat source, and after the system temperature drops to room temperature, add 0.15g Na 2 CO 3 (regulator), reacted again for 5 hours; (4) suction filtered after the reaction, and washed with 500g of deionized water for several times, and then dried at 140°C for 20 hours; (5) finally crushed and sieved the dried product into The dry powder with a thickness of 5 μm to 15 μm is the dry powder for hydrogen sulfide gas capture and elimination. The ASAP2020 gas ...

Embodiment 2

[0032] This implementation provides a dry hydrogen sulfide gas capture and elimination powder. The specific preparation method is: (1) Mix 1000g of granular activated carbon with 2L of deionized water, wash with water at 50°C for 4h, and then dry at 110°C for 10h Standby; (2) get the deionized water (solvent) mixing of gac 500g and 1200g after washing and drying, then add 6.0g FeCl 3 , 4.0gCu(NO 3 ) 2 and 6.0g Zn(NO 3 ) 2 Composed modifier and 0.10g tetrabutylammonium bromide (accelerator), reacted at 60°C for 8h; (3) Turn off the heat source, and after the system temperature drops to room temperature, add 0.10g Na 2 CO3 (regulator), reacted again for 5 hours; (4) suction filtered after the reaction, and washed with 500g of deionized water for several times, and then dried at 140°C for 20 hours; (5) finally crushed and sieved the dried product into The dry powder with a thickness of 5 μm to 10 μm is the dry powder for hydrogen sulfide gas capture and elimination. The ASAP...

Embodiment 3

[0035] This implementation provides a dry hydrogen sulfide gas capture and elimination powder. The specific preparation method is: (1) Mix 1000g of granular activated carbon with 2L of deionized water, wash with water at 50°C for 4h, and then dry at 110°C for 10h Standby; (2) get the deionized water (solvent) mixing of gac 500g and 1000g after washing and drying, then add 3.0g Fe 2 (SO 4 ) 3 , 2.0g CuCl 2 and 5.0 g ZnCl 2 Composed modifier and 0.08g tetrabutylammonium bisulfate (accelerator), reacted at 60°C for 8h; (3) Turn off the heating source, and after the system temperature drops to room temperature, add 0.10g KHCO 3 (regulator), reacted again for 5 hours; (4) suction filtered after the reaction, and washed with 500g of deionized water for several times, and then dried at 140°C for 20 hours; (5) finally crushed and sieved the dried product into The dry powder with a thickness of 10 μm to 15 μm is the dry powder for hydrogen sulfide gas capture and elimination. The ...

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Abstract

The invention relates to capturing and eliminating dry powder for efficiently removing hydrogen sulfide gas, and a preparation method thereof. A purpose of the present invention is mainly to solve theproblems of low hydrogen sulfide removal rate and easy secondary pollution in the prior art. According to the technical scheme, the capturing and eliminating dry powder comprises granular active carbon, a modifier, a promoter and an adjusting agent, wherein the modifier comprises a soluble iron salt, a soluble copper salt and a soluble zinc salt according to a mass ratio of 1-10:1-10:1-10, the promoter is at least one selected from tetrabutylammonium bromide, tetrabutylammonium chloride and tetrabutylammonium hydrogen sulfate, the adjusting agent is at least one selected from K2CO3, Na2CO3, KHCO3 and NaHCO3, and based on the amount of the dried granular active carbon, the adding amount of the modifier is 1-5%, the adding amount of the promoter is 0.01-0.1%, and the adding amount of the adjusting agent is 0.01-0.05%. With the technical scheme, the problem in the prior art is well solved. The capturing and eliminating dry powder of the present invention can be used for the capturing andeliminating of hydrogen sulfide gas.

Description

technical field [0001] The invention relates to a dry powder for efficiently removing hydrogen sulfide gas and a preparation method thereof. Background technique [0002] Hydrogen sulfide gas is a colorless toxic gas with the smell of rotten eggs at normal temperature and pressure. It is a common odorous pollutant. Long-term exposure to hydrogen sulfide will threaten human health. In the "Odor Pollutant Emission Standard", Hydrogen sulfide is one of the pollutants whose emissions are strictly restricted. Hydrogen sulfide usually comes from oil refineries, natural gas purification plants, petrochemical plants, gas purification plants, nitrogen fertilizer plants, smelters, paper mills, printing and dyeing plants, tanneries, pesticide plants and other industries. The presence of hydrogen sulfide in the gas will have various harmful effects, such as oil and gas pipelines, which are ruptured due to the long-term corrosion of hydrogen sulfide acid; also, in the ammonia synthesis ...

Claims

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Application Information

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IPC IPC(8): B01D53/52B01D53/83B01D53/10
CPCB01D53/10B01D53/52B01D53/83B01D2251/10B01D2253/102
Inventor 闫柯乐肖安山朱胜杰张红星胡绪尧邹兵
Owner CHINA PETROLEUM & CHEM CORP
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