发明名称 |
PROCESS FOR PRODUCING PURIFIED NATURAL GAS |
摘要 |
The invention provides a process for producing purified natural gas, the process comprising the steps of : (a) expanding a pressurised natural gas stream comprising at least 4 ppmv of mercaptans and supplying the resulting de-pressurised natural gas stream to a first separation column, in which first separation column the natural gas stream is separated into a gaseous overhead stream enriched in methane and a first fraction enriched in mercaptans; (b) withdrawing the gaseous first separation column overhead stream enriched in methane from the separation column to obtain the purified natural gas; (c) withdrawing the fraction enriched in mercaptans from the separation column; (d) optionally supplying the withdrawn fraction comprising mercaptans to a second separation column, in which second separation column the fraction comprising mercaptans is separated into an overhead stream enriched in ethane and a second fraction enriched in mercaptans; (e) removing mercaptans either from the first fraction enriched in mercaptans or from the second fraction enriched in mercaptans. |
申请公布号 |
EA014132(B1) |
申请公布日期 |
2010.10.29 |
申请号 |
EA20090000590 |
申请日期 |
2007.10.23 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
DEMMERS ANTONIUS, MARIA;KAART SANDER;KODDE ADRIAAN, JOHANNES |
分类号 |
F25J1/02;B01D53/52;C10L3/10;F25J3/02 |
主分类号 |
F25J1/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|