Methane partial oxidation method using a dense oxygen selectively permeable ceramic film

摘要

Disclosed is a method for partial oxidation of methane wherein a methane partial oxidation catalyst based on Ni or on noblemetal such as Ru that has low tendency of carbon precipitation, in such a quantity as deactivation of the catalyst due to oxidation does not occur, is disposed in a two-dimensional arrangement in the vicinity of the surface of the ceramic membrane where oxygen comes out thereof in the upstream of the gas flow that contains methane in the oxygen permeation membrane reactor, and the methane partial oxidation catalyst that has low tendency of carbon precipitation is disposed in a three-dimensional arrangement with respect to the ceramic membrane in the downstream of the gas flow that contains methane in the reactor, while supplying steam to the gas that contains methane and is fed to the reactor in a proportion of 0.25 to 0.5 to the carbon content in the gas. IMAGE