Gas composition control
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Plant No. 1 has an annual production capacity of 300,000 tons of ammonia or 300,000 tons of methanol; it is currently being converted from a process focused on ammonia production to one focused on methanol production. The process involves fixed-interval or oxygen-enriched gas generation furnaces, atmospheric-pressure wet desulfurization, full low-temperature conversion, conversion-desulfurization, pressure swing adsorption for carbon removal, further desulfurization, and the removal of low-pressure methanol (or hydrocracking of the methanol to produce ammonia). What are some good practices for regulating the gas composition in this entire system? What specific details need to be paid attention to during the ammonia transamination or alcohol transamination process?
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The required gases vary; attention must be paid to controlling the gas composition. For ammonia synthesis, hydrogen and nitrogen are used, and the gas entering the reactor must not contain CO or CO2. In contrast, methanol production requires hydrogen, CO, CO2, and nitrogen all of them. Media such as sulfides are strictly prohibited from entering the reactor