Eliminating foaming in hydrocarbon distillations
US4473465A · kind A · utility
4Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1983 |
| Grant date | Sep 25, 1984 |
| Priority date | — |
| Expiry date | Jan 17, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D19/0422
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for eliminating foam in hydrocarbon distillation systems where the foaming is caused by an ionic surface-active substance is involved. Foam is eliminated by the addition of an effective amount of a surfactant electrolytically opposite to the surface-active material already in the system. The surfactant added and the surface-active substance already in the system complex to form a non-foaming combination, allowing distillation to proceed without foaming.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.