Review Article
Polymeric Gas-Separation Membranes for Petroleum Refining
Table 1
Processes where membrane technology is implemented [
25ā
27].
| Process | Gas to be separated from |
| Natural gas purification | H2S/CH4 | CO2/CH4 | H2O/CH4 | C3+/CH4 |
| Hydrocracker | H2/light hydrocarbons |
| Hydrotreatment | H2/H2S |
| Steam-methane reforming | H2/CO |
| Ammonia plant | H2/N2 |
| Polyolefin plant | VOCs/N2 |
| Refinery waste-gases | VOCs/Air | H2 from other gases | CH4 from other gases | CO2 from other gases |
|
|