Method for reducing Conradson carbon content of petroleum stream

Details Method for reducing Conradson carbon content of petroleum stream Method for reducing Conradson carbon content of petroleum stream

1995-05-12

1996-05-07

Phasge, Arun S.

Electrolysis: processes, compositions used therein, and methods

Electrolytic material treatment

Organic

204514, 204559, 204567, C25B 100

Patent

active

055142524

ABSTRACT:
The present invention provides a method for decreasing the Conradson carbon ("Concarbon") number of petroleum feedstreams by passing an electric current through a mixture of a petroleum stream, typically having a Conradson carbon residue of at least about 0.1% and an aqueous electrolysis medium at a pH and cathodic voltage for a time sufficient to decrease the Conradson carbon number of the petroleum stream. The electrolysis medium contains quaternary carbyl or hydrocarbyl onium salts; inorganic hydroxides such as NaOH or KOH, or mixtures thereof. A cathodic voltage of 0 V to -3.0 V vs. Saturated Calomel Electrode (SCE) and a pH of 6-14, preferably 7 to 14, more preferably above 7 to 14 are used.
The invention has utility for converting less economically desirable refinery feeds to feeds that are more valuable.

REFERENCES:
patent: 3344045 (1967-02-01), Neikam
patent: 3401101 (1968-09-01), Keller, Jr.
patent: 3915819 (1975-10-01), Bell et al.
patent: 4187156 (1980-02-01), Coleman et al.
Danly, "Devel. of Commerc. of the Monsanto Electrochem. Adiponitrile Process," Ch. 7, pp. 147-164 in Electrosyn. From Lab. To Pilot Prod., J. D. Genders and D. Fletcher, eds, publ. The Electrosyn. Co., E. Amherst, N.Y. (1990) * no month provided.

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