Process, method, and system for removing mercury from fluids
US9181497B2 · kind B2 · utility
2Cited by
55References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2013 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Feb 11, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/205
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Trace amount levels of non-volatile mercury in crude oil are reduced by contacting the crude oil with a water stream containing at least a monatomic water-soluble sulfur species such as sulfides and hydrosulfides. The non-volatile mercury is extracted into the water phase forming a mercury rich wastewater, yielding a treated crude oil having at less than 50% of the original non-volatile mercury level. The wastewater can disposed or recycled by injection into a reservoir. In one embodiment, the water stream consists essentially of produced water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.