Antifoulants for crude oil
US4107030A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1977 |
| Grant date | Aug 15, 1978 |
| Priority date | — |
| Expiry date | Feb 17, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G9/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
As antifoulants in the processing of crude oil to minimize deposition of condensates and polymeric deposits on heat exchangers, compounds of the following structure have been utilized: ##STR1## X = OH, NH.sub.2, NHR, NHCH.sub.2 CHOHR (R = straight or branched chain alkyl containing 2 to 20, preferably 6 to 16, carbon atoms.) PA1 Y = h, ch.sub.2 PA1 M = ammonia, amine containing 1-54 carbons where the total number of carbon atoms in X and M is .gtoreq. 8 but .ltoreq. 54. PA1 n .gtoreq. 1 As preferred compounds, sulfanilic acid amine salts are preferred in the above formula where X = NH.sub.2, NHR, NHCH.sub.2 CHOHR. Also preferred are phenolic compounds which are sulfonated and subsequently partially or completely neutralized with amines as in the above formula where X = OH. The compounds show an effective dosage range from about 40 ppm to 300 ppm and the effective percent reduction in fouling in crude oils ranging from 42-94%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.