Process for cooling a hot vapor effluent of a hydrocarbon dehydrogenation zone and removing trace quantities of polynuclear aromatic compounds
US5849979A · kind A · utility
10Cited by
8References
11Claims
0Family size
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Key dates
| Filing date | Mar 6, 1997 |
| Grant date | Dec 15, 1998 |
| Priority date | — |
| Expiry date | Mar 6, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C7/11
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the removal of trace quantities of polynuclear aromatic compounds from the vapor effluent of a hydrocarbon dehydrogenation zone containing normally gaseous olefinic hydrocarbons, trace mononuclear aromatic compounds and trace polynuclear aromatic compounds by contacting the hot vapor effluent of a hydrocarbon dehydrogenation zone with a cold lean liquid absorption stream to absorb at least a portion of the trace polynuclear aromatic compounds to produce a rich liquid absorption stream and a gaseous olefin-containing hydrocarbon stream having a reduced concentration of polynuclear aromatic compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.