Process flow of coal-to-methanol and sulfur control requirements.
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Which friend knows the process flow of coal-to-methanol production and the requirements for sulfur control?
Do you need a large-scale process? Still the methanol process? Gasification, conversion, low-temperature acidic gas removal, compression and desulfurization – methanol synthesis, methanol distillation. Before methanol synthesis, desulfurization and compression are necessary, with the total sulfur content having to be at the ppb level. Generally, ZnO desulfurization is sufficient.
Reply to 1# jgsong157: For methanol production, the total sulfur content in the purified gas generally needs to be less than 0.1 ppm. Desulfurization can generally be achieved using low-temperature methanol washing.