发明申请
US20170268821A1 SYSTEM AND METHOD FOR ENHANCED ARGON RECOVERY FROM A FEED STREAM COMPRISING HYDROGEN, METHANE, NITROGEN AND ARGON
审中-公开
基本信息:
- 专利标题： SYSTEM AND METHOD FOR ENHANCED ARGON RECOVERY FROM A FEED STREAM COMPRISING HYDROGEN, METHANE, NITROGEN AND ARGON
- 申请号：US15453942 申请日：2017-03-09
- 公开(公告)号：US20170268821A1 公开(公告)日：2017-09-21
- 发明人： Henry E. Howard
- 申请人： Henry E. Howard
- 主分类号： F25J3/02
- IPC分类号： F25J3/02 ; F25J5/00
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.