发明名称 |
REFRIGERANT RECOVERY IN NATURAL GAS LIQUEFACTION PROCESSES |
摘要 |
Described herein is a method of removing refrigerant from a natural gas liquefaction system in which vaporized mixed refrigerant is withdrawn from the closed-loop refrigeration circuit and introduced into a distillation column so as to be separated into an overhead vapor enriched in methane and a bottoms liquid enriched in heavier components. Overhead vapor is withdrawn from the distillation column to form a methane enriched stream that is removed from the liquefaction system, and bottoms liquid is reintroduced from the distillation column into the closed-loop refrigeration circuit. Also described are methods of altering the rate of production in a natural gas liquefaction system in which refrigerant is removed as described above, and a natural gas liquefaction systems in which such methods can be carried out. |
申请公布号 |
EP3006874(A1) |
申请公布日期 |
2016.04.13 |
申请号 |
EP20150002857 |
申请日期 |
2015.10.06 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
JOHNSTON, BRIAN KEITH;KRISHNAMURTHY, GOWRI;ROBERTS, MARK JULIAN |
分类号 |
F25J1/00;F25J1/02 |
主分类号 |
F25J1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|