Multi-pressure process for the preparation of ammonia

摘要

A process and a device for the production of ammonia at different pressure levels may involve removing gases that are inert (inert gases) or harmful with regard to ammonia synthesis from the process in a process step before the ammonia synthesis so that enrichment of these is decreased or suppressed. For example, with respect to a gas mixture that includes hydrogen, nitrogen, water, methane, carbon monoxide, and carbon dioxide, at least part of the water, at least part of the methane, at least part of the carbon monoxide, and at least part of the carbon dioxide may be removed from the gas mixture before the synthesis of the ammonia occurs.