Process for the removal of carbon dioxide and heavy hydrocarbons
US11260337B2 · kind B2 · utility
0Cited by
18References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2019 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Apr 23, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention provides a process to purify a gas stream by using an adsorbent bed and a secondary device to remove heavy hydrocarbons with a recycle stream then sent first to a vessel containing an amine solvent to remove acid gases including carbon dioxide and hydrogen sulfide and then in most embodiments of the invention sending the treated gas stream to a dehydration unit such as an adsorbent bed or to a triethylene glycol absorbent to remove water. The invention further provides improved integration of the process streams to allow for smaller amine solvent and dehydration units as compared to the prior art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.