CHROMIUM-RARE EARTH BASED CATALYSTS AND PROCESS FOR CONVERTING HYDROCARBONS TO SYNTHESIS GAS

摘要

Catalysts and processes for the catalytic conversion of hydrocarbons to carbonmonoxide and hydrogen employing new families of chromium-rare earth basedcatalysts are disclosed. One highly active and selective catalyst system,providing greater than 95 % CH4 conversion, and 97-98 % selectivity to CO andH2 by a net catalytic partial oxidation reaction, is a Ce-Cr-Ni containingcompound. A preferred process for the catalytic conversion of a hydrocarboncomprises contacting a feed stream comprising a methane-containing hydrocarbonfeedstock and an oxygen-containing gas with a chromium-rare earth containingcatalyst in a short contact time reactor maintained at partial oxidationpromoting conditions effective to produce synthesis gas.