
基本信息:
- 专利标题: 二氧化碳的纯化
- 申请号:CN201210431826.4 申请日:2012-11-02
- 公开(公告)号:CN103086375B 公开(公告)日:2017-06-27
- 发明人: P.希金博萨姆
- 申请人: 气体产品与化学公司
- 申请人地址: 美国宾夕法尼亚州
- 专利权人: 气体产品与化学公司
- 当前专利权人: 气体产品与化学公司
- 当前专利权人地址: 美国宾夕法尼亚州
- 代理机构: 中国专利代理(香港)有限公司
- 代理人: 孔青; 杨思捷
- 优先权: 13/289363 20111104 US
- 主分类号: C01B32/50
- IPC分类号: C01B32/50
Refrigeration duty in a carbon dioxide purification unit (CPU) operating at elevated pressure and sub-ambient temperature can be provided in at least a first part by indirect heat exchange (162) against at least latent heat of at least one liquid first refrigerant (116,132), preferably carbon dioxide liquid(s) produced in the CPU, thereby typically evaporating the liquid(s), and a second part by indirect heat exchange with sensible heat energy alone of a second refrigerant (206). The second refrigerant may be nitrogen gas imported from an integrated cryogenic air separation unit (ASU) or carbon dioxide liquid exported from the CPU, cooled and returned to the CPU. One advantage is that total power consumption of the CPU and an integrated ASU is reduced.
公开/授权文献:
- CN103086375A 二氧化碳的纯化 公开/授权日:2013-05-08