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SYSTEM AND METHOD FOR ENHANCED ARGON RECOVERY FROM A FEED STREAM COMPRISING HYDROGEN, METHANE, NITROGEN AND ARGON
SYSTEM AND METHOD FOR ENHANCED ARGON RECOVERY FROM A FEED STREAM COMPRISING HYDROGEN, METHANE, NITROGEN AND ARGON
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机译:增强从氢,甲烷,氮和氩的进料流中氩回收的系统和方法
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摘要
A system and method for argon and nitrogen extraction from a feed stream comprising hydrogen, methane, nitrogen and argon, such as tail gas of an ammonia production plant is provided. The disclosed system and method provides for nitrogen-argon rectification and the methane rejection within a column system comprised of at least one distillation column. Nitrogen and argon are further separated and to produce liquid products. An argon stripping column arrangement is disclosed where residual argon is further removed from the methane-rich fuel gas and recycled back to the feed stream.
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