Multifunctional raw gas purifying agent, preparation method and application method thereof

A raw gas, multi-functional technology, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve the problems of no conversion removal, less research on conversion removal, catalyst poisoning or corrosion, etc.

Active Publication Date: 2012-04-25
HAISO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In water gas, semi-water gas, coke oven gas, IGCC power generation gas and other raw materials, there is often a certain amount of H 2 S, COS, CS 2 , HCN, SO 2 and SO 3 , also contains ≤1% O 2 , these impurities will poison the downstream catalyst or corrode the downstream equipment, where H 2 S removal technology is relatively mature, and COS and CS have been studied in previous patents or industrial applications 2 hydrolysis, which is hydrolyzed to H 2 S, then remove (patent CN01106660.1), or use different catalysts or methods to remove COS and CS respectively 2 and HCN (patents CN02131302.4, CN02131303.2, CN02131304.0, CN02155489.7, CN031242596), or only study deoxidation or sulfur-resistant deoxidizers under sulfur-free conditions (patents ZL02135207.0, ZL93112631.2, CN200610019605.0 ), for the above-mentioned SO 2 and SO 3 There are few studies on the conversion and removal of the above-mentioned six impurities, and there are no patents and industrial application reports on the simultaneous conversion and removal of the above six impurities using a catalyst

Method used

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  • Multifunctional raw gas purifying agent, preparation method and application method thereof
  • Multifunctional raw gas purifying agent, preparation method and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 5 grams of ammonium molybdate, 7 grams of copper acetate, and 7 grams of magnesium chloride, mix them into 52 grams of water, add 10% ammonia solution to adjust the pH value to 9-12, heat and stir to prepare the active component impregnation solution, and the impregnation solution Pour into a beaker with 100 grams of active alumina carrier and soak for 4 hours, take it out and dry it at 120°C for 3 hours, then bake it at 300°C for 5 hours to obtain the multifunctional raw material gas purifier, coded as A.

Embodiment 2

[0026] Weigh 7 grams of ammonium molybdate, 9 grams of lead acetate, and 15 grams of potassium carbonate, mix them into 52 grams of water, add 10% ammonia solution to adjust the pH value to 9-12, heat and stir to prepare the active component impregnation solution, and the impregnation solution Pour into a beaker containing 100 grams of activated alumina carrier and soak for 4 hours, take it out and dry it at 120°C for 4 hours, then bake it at 280°C for 4 hours to obtain the multifunctional raw material gas purifier, coded as B.

Embodiment 3

[0028] Weigh 10 grams of ammonium molybdate, 5 grams of nickel oxalate, and 5 grams of sodium carbonate, mix them into 52 grams of water, add 10% ammonia solution to adjust the pH value to 9-12, heat and stir to prepare the active component impregnation solution, and impregnate Pour the liquid into a beaker with 100 grams of activated alumina carrier and soak for 4 hours, take it out, dry it at 120°C for 2 hours, and then roast it at 340°C for 6 hours to obtain the multifunctional raw material gas purifier, coded as C .

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Abstract

The invention relates to a multifunctional raw gas purifying agent, a preparation method and an application method thereof. According to the present invention, active alumina is adopted as a carrier, and the carrier loads ammonium molybdate, one or two materials selected from copper acetate, zinc acetate, lead acetate, nickel oxalate and ammonium metavanadate, and one material selected from magnesium chloride, potassium carbonate and sodium carbonate to prepare the multifunctional raw gas purifying agent, wherein the mass of the loaded ammonium molybdate is 1-10% of the mass of the carrier, the total mass of the other two or three loaded metal compounds is 10-25% of the mass of the carrier. The preparation method for the multifunctional raw gas purifying agent comprises: impregnating the carrier for 2-6 hours by the metal compound solution; drying for 2-4 hours at a temperature of 120 DEG C; carrying out baking for 4-6 hours at the temperature of 280-350 DEG C to prepare the multifunctional raw gas purifying agent. The multifunctional raw gas purifying agent of the present invention is adopted in the raw gases of water gas, semi-water gas, coke oven gas or IGCC power generation fuel gas to purify COS, CS2, HCN, SO2, SO3 O2 and other impurities, wherein the conversion rates of the COS, the CS2, the HCN, the SO2 and the SO3 are more than or equal to 90%, and the O2 removal rate is more than or equal to 95%.

Description

Technical field: [0001] The invention relates to a multifunctional raw material gas purifier and its preparation and application method in raw material gases such as water gas, semi-water gas, coke oven gas and IGCC power generation gas. Background technique: [0002] In water gas, semi-water gas, coke oven gas, IGCC power generation gas and other raw materials, there is often a certain amount of H 2 S, COS, CS 2 , HCN, SO 2 and SO 3 , also contains ≤1% O 2 , these impurities will poison the downstream catalyst or corrode the downstream equipment, where H 2 S removal technology is relatively mature, and COS and CS have been studied in previous patents or industrial applications 2 hydrolysis, which is hydrolyzed to H 2 S, then remove (patent CN01106660.1), or use different catalysts or methods to remove COS and CS respectively 2 and HCN (patents CN02131302.4, CN02131303.2, CN02131304.0, CN02155489.7, CN031242596), or only study deoxidation or sulfur-resistant deoxidize...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/81B01D53/48B01D53/54B01D53/46
Inventor 孔渝华王先厚雷军肖安陆钱胜涛刘华伟胡典明李木林张清建陈健魏华王贤超
Owner HAISO TECH
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