Process, method, and system for removing mercury from fluids
US8790427B2 · kind B2 · utility
5Cited by
81References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2013 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | Sep 6, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/80
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Trace levels of mercury in a natural gas are removed in a gas processing plant in an amine unit and/or a dehydrator. The mercury removal occurs concurrently with the removal of acid gases in an amine unit, e.g., an absorber or scrubber, with an amine solution containing a complexing agent. The mercury removal can also be carried out concurrently with the removal of water in a glycol dehydrator with the addition of a complexing agent to the glycol solution. Volatile mercury in the natural gas is removed by the complexing agent, forming non-volatile mercury species in the rich amine/glycol solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.