Chemistry of hydrocarbon compounds – Plural serial diverse syntheses – With hydrocarbon recycle from later to earlier synthesis
Patent
1997-03-26
1998-11-03
Caldarola, Glenn
Chemistry of hydrocarbon compounds
Plural serial diverse syntheses
With hydrocarbon recycle from later to earlier synthesis
585310, 585737, 585739, 585940, C07C 100, C07C 513
Patent
active
058311394
ABSTRACT:
A process combination is disclosed to selectively upgrade naphtha in accordance with expected trends leading to more-aliphatic gasolines. Such gasolines contain lower concentrations of aromatics and have lower end points with concomitant reduced harmful automotive emissions. The present process combination converts the higher-boiling portion of the naphtha, yields isobutane and other isoparaffins which are particularly suitable for upgrading or blending, and reduces cyclics in intermediate processing steps.
REFERENCES:
patent: 3788975 (1974-01-01), Donaldson
patent: 5334792 (1994-08-01), Del Rossi et al.
patent: 5463155 (1995-10-01), Galperin et al.
patent: 5498810 (1996-03-01), Bogdan et al.
Copending application Ser. No. 08/151,692 (Galperin et al) filed Nov. 15, 1993.
Bogdan Paula L.
Galperin Leonid B.
Holmgren Jennifer S.
Schmidt Robert J.
Caldarola Glenn
Conser Richard E.
Dang Thuan D.
McBride Thomas K.
Spears Jr. John F.
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