This paper reports on the scaling-up of a one-step methanol production
process from the laboratory scale to the pilot scale. This lays the
foundation for the industrialization of a one-step process for preparing
DMM from methanol. After a long period of operation in the circulating
fluidized bed, the Fe-Mo/HZSM-5 catalyst was shown to have high
stability and carbon deposition resistance, and the regeneration effect
of the circulating regeneration fluidized bed was better. In addition,
in-situ DRIFTS was used to explore the effects of reaction time, the
Mo-Fe ratio and carrier Si-Al ratio on the reaction and product
distribution. It was found that the synergistic effect of oxidation
centers and acid centers was the fundamental reason for the excellent
catalytic performance of the Fe-Mo/HZSM-5 catalyst. And proposed the
reaction mechanisms in the one-step synthesis of methylal via methanol
oxidation.
Reaction mechanisms and catalysis in the one-step synthesis of methylal via methanol oxidation