Sosoloid catalyst of methyl alkyl catalyzing burned and its preparation process

Abstract

A solid solution catalyst for the catalytic combustion of methane in air with low combustion temp (395-570 deg.C) is prepared from cerium oxide and cobalt oxide by urea combustion method.

Description

technical field [0001] The invention relates to a catalyst for methane low-temperature catalytic combustion and a preparation method thereof. Background technique [0002] Natural gas is known as a new generation of clean energy that can replace coal and oil due to its abundant reserves, low price, low pollution, and high thermal efficiency. However, the combustion temperature of its main component methane is very high (1600°C), so the combustion efficiency is low, and a small amount of NO will be produced during the combustion process. X and incomplete combustion products, causing environmental pollution. As a new method of energy utilization, catalytic combustion is being extensively studied. Catalytic combustion can reduce the combustion temperature of low-carbon hydrocarbons, reduce the generation of harmful gases, and the reaction conditions are easy to control. At the same time, the lower combustion temperature can also avoid the sintering of the catalyst itself, so...

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Problems solved by technology

Tian-Cun Xiao et al reported ZrO in Journalof Molecular Catalysis A: Chemical (2001(175): 111-123) 2 , MgO, Al 2 o 3 In the case of carrier-supported Co catalysts for methane catalytic combustion, Sheng-Fu Ji et al. reported the related research of Co-Mg solid solution catalysts for methane catalytic combustion in Catalysis Letters (2001 (75): 65-71). Both show good catalytic performance, but low temperature activity is still not good