Reaction conditions for methanol production from syngas
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I would like to ask about the reaction conditions for the industrial production of methanol from syngas. What are the operating temperature, operating pressure, and hydrogen-to-carbon ratio respectively? If changes in conversion and selectivity are not taken into account, which is more effective in reducing production costs: lowering the reaction pressure or lowering the reaction temperature?
The typical reaction conditions for methanol production from syngas are: an operating temperature of 200–300°C, and an operating pressure in the range of 10–100 Mpa. The hydrogen-to-carbon ratio ranges from 1.7 to 2.5. Without considering changes in conversion and selectivity, reducing the reaction pressure and lowering the reaction temperature can both decrease production costs. This is because reducing the reaction pressure lowers the recovery costs, while lowering the reaction temperature reduces energy consumption. However, in practice, both of these methods affect selectivity and conversion rate, so a choice must be made based on the specific circumstances. .