System to reduce interface emulsion layer formation in an electrostatic dehydrator or desalter vessel through use of a low voltage electrostatic interface emulsion treatment system inside the vessel
US10745301B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2018 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Oct 18, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2201/46135
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A system for separating the components of an incoming oil-water mixture includes two electrode sets, one set arranged to apply an electrostatic field to an oil layer residing within a separator vessel and the other set arranged to apply an electrostatic field to the interface emulsion layer residing within the separator vessel. The first set of electrodes is in communication with a high voltage power source that ranges from 1 to 60 kV; the second set of electrodes is in communication with a low voltage power source that is no greater than 5 kV. Each set of electrodes may also be in communication with a second voltage source to provide increased power to promote effective coalescence. The system may also include power electronics to produce a variable amplitude and a variable frequency voltage supply to one or both electrode sets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.