Method and system for light olefin separation
US10683246B2 · kind B2 · utility
1Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2018 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Aug 8, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/702
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is provided for separation of light olefins and paraffins and particular for the separation of propylene and propane comprising sending at least one olefin/paraffin stream to a distillation column and a membrane unit to produce an olefin stream comprising at least 92 mol % olefin. In an embodiment of the invention where the membrane unit is placed downstream from the column which can produce propylene streams at polymer grade of over 99.5 mol % propylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.