发明名称 |
Process to separate nitrogen and methane |
摘要 |
A process for more efficiently separating nitrogen and methane using a double column cryogenic rectification nitrogen rejection unit wherein feed is passed through a high pressure stripping column prior to the nitrogen rejection unit. As a result, higher pressure methane can be recovered with reduced compression requirements, and an upgraded feed to the nitrogen rejection unit enables more efficient separation.
|
申请公布号 |
US4664686(A) |
申请公布日期 |
1987.05.12 |
申请号 |
US19860827165 |
申请日期 |
1986.02.07 |
申请人 |
UNION CARBIDE CORPORATION |
发明人 |
PAHADE, RAVINDRA F.;MALONEY, JAMES J.;HANDLEY, JAMES R. |
分类号 |
C07C7/04;F25J3/02;(IPC1-7):F25J3/02 |
主分类号 |
C07C7/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|