Mechanism and kinetics of methanol synthesis coupled with water-gas shift reaction.

The experimental data are reported on the kinetics of methanol synthesis and water-gas shift reaction. Under certain conditions of methanol synthesis, some anomalous kinetics was observed: an increase in the average rate of the reaction in the integral flow-type reactor with an increase in the contact time. This unusual behavior is stipulated by the coupling of methanol synthesis with the water-gas shift reaction. A modified scheme of the mechanism is proposed that accounts for this coupling.