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Catalyst for catalytic combustion of chlorine-containing organic waste gas

A catalytic combustion, organic waste gas technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, combustion methods, etc., can solve the problem of low initial activity, poor resistance to chlorine poisoning, and poor selectivity. Good and other problems, to achieve good treatment effect, low cost, good selectivity

Active Publication Date: 2013-10-23
杭州润信科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of low initial activity, poor resistance to chlorine poisoning, CO 2 With the shortcomings of poor selectivity to HCl, it provides a catalyst for catalytic combustion of chlorine-containing organic waste gas, which is suitable for catalytic combustion and degradation of various CVOCs

Method used

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  • Catalyst for catalytic combustion of chlorine-containing organic waste gas
  • Catalyst for catalytic combustion of chlorine-containing organic waste gas
  • Catalyst for catalytic combustion of chlorine-containing organic waste gas

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Weigh 0.694 g Ni(NO 3 ) 2 ·6H 2 O, 0.138 g NH 4 VO 3 , Add 100ml deionized water to make a solution. Then, 0.222 g of oxalic acid was added to the solution, and magnetically stirred at 60° C. for 20-30 min until the solute was completely dissolved to obtain an active component impregnation solution.

[0023] Weigh 2 grams of TiO 2 Powder carrier, immerse it in the active component impregnation solution, then transfer all the impregnation solution and carrier to the Erlenmeyer flask, evaporate the solution to dryness at 70°C, dry at 110°C for 12 hours, and bake at 500°C In 5 hours, Ni with a metal element loading of 10% can be prepared 0.7 -V 0.3 / TiO 2 catalyst.

Embodiment 2

[0025] Weigh 0.694 g Ni(NO 3 ) 2 ·6H 2 O, 0.138 g NH 4 VO 3 , Add 100ml deionized water to make a solution. Then, 0.222 g of oxalic acid was added to the solution, and magnetically stirred at 60° C. for 20-30 min until the solute was completely dissolved to obtain an active component impregnation solution.

[0026] Weigh out 2 grams of Al 2 o 3 Powder carrier, immerse it in the active component impregnation solution, then transfer all the impregnation solution and carrier to the Erlenmeyer flask, evaporate the solution to dryness at 70°C, dry at 110°C for 12 hours, and bake at 500°C In 5 hours, Ni with a metal element loading of 10% can be prepared 0.7 -V 0.3 / Al 2 o 3 catalyst.

Embodiment 3

[0028] Weigh 0.694 g Ni(NO 3 ) 2 ·6H 2 O, 0.138 g NH 4 VO 3 , Add 100ml deionized water to make a solution. Then, 0.222 g of oxalic acid was added to the solution, and magnetically stirred at 60° C. for 20-30 min until the solute was completely dissolved to obtain an active component impregnation solution.

[0029] Weigh 2 g of ZrO 2 Powder carrier, immerse it in the active component impregnation solution, then transfer all the impregnation solution and carrier to the Erlenmeyer flask, evaporate the solution to dryness at 70°C, dry at 110°C for 12 hours, and bake at 500°C In 5 hours, Ni with a metal element loading of 10% can be prepared 0.7 -V 0.3 / ZrO 2 catalyst.

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Abstract

The invention discloses a catalyst for catalytic combustion of chlorine-containing organic waste gas. The catalyst consists of a carrier and an active ingredient loaded on the carrier, wherein the carrier is TiO2, Al2O3, ZrO2 or SiO2, and the active ingredient is composed of nickel oxide and an active auxiliary; the active auxiliary is oxide of one or more then one element of copper, manganese, cerium, iron, chrome and vanadium; the mass of all metallic elements in the active ingredient is 5-40 wt% of the mass of the carrier, preferably 10%, and the mass ratio of the total metallic elements in the active auxiliary to Ni is 1.0: (1.0-5.0). Furthermore, the invention discloses a preparation method of the catalyst. The elements of the active ingredient of the catalyst provided by the invention are transition metal and rare-earth metal oxides, and the catalyst is free of noble metal and low in cost; and the catalyst has the advantages of high activity, high selectivity, high stability and the like.

Description

(1) Technical field [0001] The invention relates to the technical field of air pollution control, in particular to a catalyst for catalytic combustion of chlorine-containing organic waste gas and a preparation method thereof, and its application in catalytic combustion of chlorine-containing organic waste gas (CVOCs). (2) Background technology [0002] Chlorine-containing volatile organic compounds (CVOCs) are widely used in chemical engineering, pesticides, pharmaceuticals, preservatives, dyes, coatings, textiles and electronics industries. The common ones are dichloromethane (DCM), chloroform (CF), dichloroethane (DCE), trichloroethylene (TCE), chlorobenzene (CB), etc., which are used as a common organic solvent and chemical production The semi-finished products in the process are widely used, and the large amount of discharge has great harm to the environment and human health. Compared with degradation technologies such as photocatalysis, plasma corona discharge, adsorpt...

Claims

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Application Information

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IPC IPC(8): B01J23/847B01J23/889B01J23/83B01J23/755B01J23/86F23G7/07
Inventor 卢晗锋宁星杰黄海凤周瑛陈银飞
Owner 杭州润信科技有限公司
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