Retarding deposition of paraffin from crude oil or natural gas with alkaline liquids
US4722398A · kind A · utility
3Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1986 |
| Grant date | Feb 2, 1988 |
| Priority date | — |
| Expiry date | Mar 7, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/931
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An improved method for inhibiting the deposition of paraffins on the surface of equipment in contact with crude oil or natural gas streams containing paraffins. The deposition of paraffins may be reduced by first contacting the equipment with a sulfur trioxide containing fluid and then adding an aqueous solution containing hydroxyl ions to the crude oil or natural gas streams containing paraffins which are in contact with the equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.