Process for the removal of polynuclear aromatic compounds from a

Details Process for the removal of polynuclear aromatic compounds from a Process for the removal of polynuclear aromatic compounds from a

1995-07-17

1997-09-30

Caldarola, Glenn A.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By dehydrogenation

585807, C07C 700

Patent

active

056728042

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 cooling the vapor effluent to condense at least a portion thereof, up to five weight percent, by introducing the resulting cooled stream into a vapor-liquid separator to produce a vapor stream containing normally gaseous olefinic hydrocarbons and having a reduced concentration of polynuclear aromatic compounds and a liquid stream containing mononuclear and polynuclear aromatic compounds and by recovering the vapor stream comprising normally gaseous olefinic hydrocarbons having a reduced concentration of polynuclear aromatic compounds.

REFERENCES:
patent: 4430517 (1984-02-01), Imai et al.
patent: 5177293 (1993-01-01), Mitariten et al.
patent: 5481060 (1996-01-01), Scott et al.

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