Composite catalyst and method and system for in-situ elimination of carbon deposition of methane and carbon dioxide reforming catalyst

Abstract

The invention discloses a composite catalyst and a method and a system for in-situ elimination of carbon deposition of a methane carbon dioxide reforming catalyst. The composite catalyst is formed by mixing carbonate and a transition metal catalyst. The composite catalyst, the method and the system can effectively solve the problem of deactivation of the methane carbon dioxide reforming catalyst caused by carbon deposition in a reaction, and the long-time stability of the catalyst is improved.

Description

technical field [0001] The invention belongs to the technical field of methane reforming and carbon dioxide resource utilization, and relates to a composite catalytic body, a method and a system for in-situ elimination of carbon deposition in methane carbon dioxide reforming catalysts. Background technique [0002] my country is a big energy consumption country, but under the "oil-poor" national conditions of our country, the increasingly prominent problem of crude oil supply security restricts the development of petrochemical industry, and the conversion of methane (natural gas, coal bed methane and flue gas) into clean, high-addition High-value liquid fuels and chemical products are one of the important ways to solve my country's current petrochemical strategic security issues, and have important academic research value and engineering application prospects. Methane carbon dioxide reforming (DRM) synthesis gas reaction is one of the important links to convert methane and ca...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a composite catalyst body, a method and system for eliminating carbon deposits in methane carbon dioxide reforming catalysts in situ, the composite catalyst body, method and system can effectively solve methane carbon dioxide reforming Improve the long-term stability of the catalyst due to the deactivation problem of the catalyst due to carbon deposition in the reaction

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