Sosoloid catalyst of methyl alkyl catalyzing burned and its preparation process

Abstract

A solid solution catalyst for the catalytic combustion of methane in air is disclosed. Its advantages are low combustion temp (500-680 deg.C), low cost and simple preparing process.

Description

technical field [0001] The invention relates to a catalyst for low-temperature catalytic combustion of methane and a preparation method thereof. Background technique [0002] As a kind of clean energy, natural gas has an increasing proportion in the energy structure. However, the combustion temperature of its main component methane is very high, so the combustion efficiency is low, and a small amount of NO is produced during the combustion process. X and incomplete combustion products, resulting in environmental pollution. Oxygen-enriched combustion of methane in the presence of catalysts is more environmentally friendly. [0003] The catalysts for the catalytic combustion of methane mainly include supported noble metals such as Pt, Pd and Rh, perovskite-type composite metal oxides, and supported transition metal catalysts. Supported noble metal catalysts such as Pt have good low-temperature catalytic activity for methane combustion, but these catalysts are expensive and ...

AI Technical Summary

Problems solved by technology

Supported noble metal catalysts such as Pt have good low-temperature catalytic activity for methane combustion, but such catalysts are expensive and have poor thermal stability, which limits their industrial applications.

Perovskite-type and transition metal oxide catalysts are also difficult to use on a large scale due to factors such as small specific surface area, poor mechanical strength and low activity.