Formaldehyde synthesis comprises oxy-dehydrogenation of a gas phase containing methanol using molecular oxygen in the presence of a silver catalyst

摘要

Formaldehyde synthesis comprises oxy-dehydrogenation of gaseous phase containing methanol using molecular oxygen at 500-700[deg]C in the presence of a silver catalyst according to a reaction scheme given in the specification. The reaction medium of the process has: an oxygen content such as methanol:oxygen ratio being greater than 0.5; a nitrogen content of less than 60% such as a nitrogen:oxygen ratio being less than 4 and a methane content of 15-85% such as a methanol:methane ratio being 0.1-100.