Development of new technology for 80% reduction of energy consumption in production of chemical materials from natural gas

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We investigated silicomolybdic acid (SMA) catalysts for the direct synthesis of methanol and formaldehyde by partial oxidation of methane (POM) which is expected to reduce the energy consumption significantly. In order to prevent the aggregation of SMA which contributes to a catalytic deactivation, we prepared the SMA catalysts encaged in pores of Zeolite Y and in hollow silica particles. The product yields in POM were higher than those over the zeolite- and silica-supported SMA catalysts, indicating the effectiveness of the encaged SMA catalysts. However, we have not achieved the catalytic performance for practical use.