基本信息:
- 专利标题： 通过低温蒸馏分离空气的方法
- 专利标题（英）：Process for the separation of air by cryogenic distillation
- 申请号：CN201380051043.6 申请日：2013-09-13
- 公开(公告)号：CN105431698A 公开(公告)日：2016-03-23
- 发明人： B·达维迪安 , R·杜贝蒂尔-格勒尼耶 , J-M·佩龙 , B·索尼耶
- 申请人： 乔治洛德方法研究和开发液化空气有限公司
- 申请人地址： 法国巴黎
- 专利权人： 乔治洛德方法研究和开发液化空气有限公司
- 当前专利权人： 乔治洛德方法研究和开发液化空气有限公司
- 当前专利权人地址： 法国巴黎
- 代理机构： 北京市中咨律师事务所
- 代理人： 牛晓玲; 吴鹏
- 优先权： 12306195.4 2012.10.01 EP
- 国际申请： PCT/EP2013/068965 2013.09.13
- 国际公布： WO2014/053297 EN 2014.04.10
- 进入国家日期： 2015-03-30
- 主分类号： F25J3/04
- IPC分类号： F25J3/04
A process for the separation of air by cryogenic distillation operates either with a product ratio greater than 2.5, in which case nitrogen enriched liquid is sent from a storage tank (27) to the column system and nitrogen enriched gas (29) from the column system is compressed in a first compressor (33) having an inlet temperature of less than -50 DEG C and then warmed in the heat exchanger, or with a product ratio less than 2.5, in which case a second nitrogen rich gas removed from the column system is expanded in a turbine (73) having an inlet temperature lower than the ambient temperature or liquefied in a liquefier and nitrogen enriched liquid (57) is sent to the storage tank from the outlet of the turbine and/or from the column system and/or from the liquefier.