What is the relationship between the amount of methanol synthesis catalyst and the reaction pressure, and what is an appropriate value for the synthesis pressure?
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The relationship between the amount of methanol synthesis catalyst and reaction pressure – what is the most appropriate pressure for methanol synthesis? Currently, methanol production capacities range from 50 kilograms to 90 kilograms. So, what amount is considered appropriate? I believe increasing the catalyst dosage to reduce the synthesis pressure can lead to energy savings; therefore, the synthesis pressure should be reduced as much as possible, provided that the catalyst permits it. The measure is to increase the amount of catalyst. Do everyone think it’s feasible?
Why does reducing pressure lower energy consumption? Is the power in the compression stage low? Actually, there are other ways: by increasing the pressures in the gasification, conversion, and low-temperature methanol washing processes, it becomes unnecessary to use a compression stage. Moreover, with higher pressures, the energy consumption associated with low-temperature methanol washing can also be **reduced**. After the pressure is reduced, the equipment becomes larger, which may lead to increased space requirements and costs, as well as a higher amount of catalyst that needs to be used. . . After the equipment becomes larger, the amount of catalyst used decreases; could this lead to insufficient residence time, forcing an increase in the catalyst amount? The oxygen pressure used for gasification is quite high; it’s easy to increase the pressure, so there’s no need to reduce it.
Not only does more catalyst need to be used, but the size of the synthesis tower also has to increase, which leads to higher investment costs. Furthermore, does an oversized synthesis tower meet the requirements for manufacturing and transportation?