Process for the recovery of a light hydrocarbon fraction from marine loading operations
US5315832A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 12, 1993 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Feb 12, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G5/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The process for the recovery of light hydrocarbon fractions from off-gases derived from the transfer of petroleum material, particularly from a marine loading operation. One process comprises introducing the off-gases containing a light hydrocarbon fraction to be recovered into a refrigerated absorbent column through a liquid ring compressor, employing as a motive fluid a heavy hydrocarbon fraction, recovering a bottom stream from the absorber column having the heavy oil and the light hydrocarbon fraction, then venting an overhead air stream with a low total hydrocarbon content. The process also includes an integrated process for the recovery of light hydrocarbon fractions from off-gases and includes, in addition to a refrigerated absorber column, a recovery stripper column for the removal of the light hydrocarbon fraction from the bottom liquid of the absorber column and the recovery and recycling of a heavy hydrocarbon fraction for use in the absorber column and with the liquid ring compressor. The return of non-condensibles to the liquid ring compressor, both the absorber and the absorber recovery process systems provide for an efficient, low-cost and effective process for the r…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.