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Hydrogenation catalyst and application thereof in treatment of sulfur-containing waste gas

A technology of hydrogenation catalyst and hydrogenation activity, which is applied in the direction of chemical instruments and methods, separation methods, and separation of dispersed particles, and can solve problems such as affecting economic benefits, high catalyst production costs, insufficient hydrogenation activity and desulfurization activity, and achieves Effect of improving utilization rate and high hydrogenation catalytic activity

Pending Publication Date: 2021-06-01
阜阳莱纳环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hydrogenation catalysts currently used in industrial plants generally have shortcomings such as insufficient hydrogenation activity and desulfurization activity, and high catalyst production costs, which affect economic benefits.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019]A hydrogenated hydrocatalyst comprising a hydrogenated metal component of cobalt and molybdenum, as well as ammonia molecular sieves carrying cobalt and molybdenum hydrogen-hydrogenated metal components, and the preparation method thereof includes:

[0020]S1, 15GZSM-5 molecular sieve powder was dried at 500 ° C for 5 hours, and then stirred in an ammonium nitrate solution (10 wt%), stirred at 80 ° C for 2 h, filtered and washed with deionized water, 120 ° C for 15 h, obtained Ammonia molecular sieve;

[0021]S2, the above-mentioned ammonia molecular sieve was added to a mixed solution of cobalt nitrate and ammonium molybdate (specifically, 11148 g of six-water nitrate and 1.7623 g of tetrahydrate molybdate) were dissolved in 20 ml of deionized water), stirred and uniform. 0.5h, then impregnated at room temperature, then dried at 120 ° C for 3 h, then put it into the muffle furnace, and the hydrogenation catalyst was obtained at 500 ° C.

Embodiment 2

[0023]A hydrogenation catalyst comprising a hydrogenated metal component of nickel and molybdenum, as well as ammonia molecular sieves loaded with nickel and molybdenum hydrogen-hydrogen gene, and the preparation method thereof includes:

[0024]S1, 15GZSM-5 molecular sieve powder was dried at 500 ° C for 5 hours, and then stirred in an ammonium nitrate solution (10 wt%), stirred at 80 ° C for 2 h, filtered and washed with deionized water, 120 ° C for 15 h, obtained Ammonia molecular sieve;

[0025]S2, the above-mentioned ammonia molecular sieve was added to a mixed solution of nickel nitrate and ammonium molybdate (specifically, 1,0636 g of six nitrate nickel and 1.7623 g of tetrahydrate molybdate was dissolved in 20 ml of deionized water), stirred and uniform. 0.5h, then impregnated at room temperature, then dried at 120 ° C for 3 h, then put it into the muffle furnace, and the hydrogenation catalyst was obtained at 500 ° C.

Embodiment 3

[0027]A hydrogenation catalyst comprising a hydrogenated metal component of nickel and molybdenum, and a ammonia molecular sieve loaded with nickel and molybdenum hydrogen-hydrogenated metal components, and the preparation method includes:

[0028]S1, 15GZSM-5 molecular sieve powder was dried at 500 ° C for 5 hours, and then stirred in an ammonium nitrate solution (10 wt%), stirred at 80 ° C for 2 h, filtered and washed with deionized water, 120 ° C for 15 h, obtained Ammonia molecular sieve;

[0029]S2, the above-mentioned ammonia molecular sieve is added to a mixed solution of nickel nitrate and ammonium bias (specifically 1.0636 g of nickel nickel nickel and 2.6213 g of hexahydrate tungstate) in 20 ml of deionized water dissolved in 20 ml of deionized water), stirred well Ultrasonic 0.5 h, then impregnated at room temperature, then dried at 120 ° C for 3 h, then placed in a muffle furnace, baked at 500 ° C for 5 hours, i.e., the hydrogenation catalyst obtained.

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PUM

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Abstract

The invention provides a hydrogenation catalyst and an application thereof in treatment of sulfur-containing waste gas. The hydrogenation catalyst comprises a hydrogenation active metal component and an ammonia type molecular sieve loaded with the hydrogenation active metal component, wherein the ammonia type molecular sieve is obtained by carrying out ammonium ion exchange on a molecular sieve and an ammonium salt. According to the hydrogenation catalyst, the desulfurization efficiency in a sulfur-containing waste gas treatment process is remarkably improved.

Description

Technical field[0001]The present invention relates to the field of exhaust gas treatment, and more particularly to a hydrogenation catalyst and its application in treatment of sulfur-containing exhaust.Background technique[0002]Coke oven gas, natural gas, petroleum accompanying and refinery exhaust gas contained a large number of organic sulfur compounds, including carbonyl sulfur, thioether, thiol, thiophene, etc., organic sulfur compounds have toxicity, and their emissions from gas will have an environment and human body It has caused harm, and when these gases continue for industrial production, the organic sulfur compound can cause the catalyst inactivation used in industrial reactions, affect the catalytic performance of the catalyst, resulting in a decrease in industrial yield, such as when using coke oven gas to form methanol Generally, the general methanol synthesis catalyst requires a total sulfur content of the coke oven gas to be less than 0.1 ppm, even more advanced meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/48
CPCB01D53/8603B01D2255/20769B01D2255/20746B01D2255/50B01D2255/20753B01D2255/504
Inventor 程鹏周典曹雨
Owner 阜阳莱纳环保科技有限公司
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