Partial oxidation of methane to synthesis gas on catalysts based on metal honeycomb supports

Abstract

To develop effective catalysts based on metal meshy supports for the reaction of the methane partial oxidation to synthesis gas there were the comparative tests of metal catalysts (Pd, Ni, Co, Cu, supported on a metal grid and fechral foil) obtained two ways: thermochemical and electrochemical deposition of metals. Tests were carried out in the temperature range 680–1000 °C in a flow reactor (internal diameter 10 mm) with integrated catalyst in the form of a twisted roll of wire mesh or fechral foil. It is shown that the metal supports (grid or foil) with metals (palladium, nickel) putted on them are promising for use as catalysts in the production of synthesis gas by the reaction of partial oxidation of methane in a narrow range of the molar ratio oxygen/methane (O2/СН4 = = 0,45÷0,55). In the study of catalyst surfaces by SEM there was revealed that the thermochemical deposition of VIII group metal more extensive area of active metals is formed, providing even at 900 °C almost 100 % conversion of methane with selectivity for CO over 90 %.