A kind of composite catalyst for catalytic burning ethyl acetate and its preparation method and application

An ethyl acetate, catalytic combustion technology, applied in combustion methods, physical/chemical process catalysts, combustion types, etc., can solve problems such as low low temperature activity, and achieve the effects of low cost, improved activity, and reduced oxide content
CN107930624BActive Publication Date: 2020-07-17XIAN ORIGIN CHEM TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
XIAN ORIGIN CHEM TECH
Publication Date
2020-07-17

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Abstract

The invention provides a composite catalyst for performing catalytic combustion on acetic ether. According to the catalyst, Al2O3 is taken as a carrier; metal Pd is taken as an active component; the mass of metal Pd is 0.1 to 0.5 percent of that of Al2O3; composite non-noble metal oxide is taken as an assistant and is formed by compounding CeO2 and SnO2, with a structural formula being CeO2-SnO2;the mass of CeO2 is 0.5 percent of that of Al2O3; the mass SnO2 is 4 to 20 percent of that of Al2O3. The invention further provides a method for preparing the catalyst and a method for performing catalytic combustion on acetic ether through the catalyst. The catalyst takes non-noble metal oxide as an assistant, and the assistant can increase the content of active oxygen on the surface of the catalyst and improve the activity of the catalytic, has high heat stability, and can rapidly and efficiently eliminate acetic ether in industrial tail gas.
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Description

technical field

[0001] The invention belongs to the technical field of catalysts, and in particular relates to a composite catalyst for catalytic combustion of ethyl acetate and its preparation method and application. Background technique

[0002] Ethyl acetate is a volatile organic compound that is extremely harmful to the ecological environment and human health. It is widely produced in petrochemical, printing, pharmaceutical and other production processes. In recent years, my country has successively promulgated a number of regulations to help the treatment of volatile organic compounds (VOCs). The catalysts usually used for the catalytic combustion of ethyl acetate are mainly divided into two categories: precious metals such as Pt, Pd, Rh, etc., and non-precious metal oxides Such as calcium iron ore, hexaaluminate, composite metal oxide, etc. Among them, although noble metal catalysts have good low-temperature activity, they are easily deactivated in the presence of wate...

Claims

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