Process and system for removal of light ends and non-condensables to prevent buildup in an olefin/paraffin membrane separation process
US11136280B2 · kind B2 · utility
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4References
11Claims
0Family size
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Key dates
| Filing date | May 29, 2019 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | May 29, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2215/64
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Systems and processes are provided to prevent light ends such as methane, ethylene and ethane from building up in an olefin/paraffin separation system that uses a combination of a membrane and distillation column for this separation. In one embodiment a small stripper column is provided downstream from a selective hydrogenation reactor. In the other embodiment, a surge vessel with a receiver is added to the retentate stream of the membrane unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.