Process for reducing total acid number of crude oil

Details Process for reducing total acid number of crude oil Process for reducing total acid number of crude oil

1998-05-05

1999-07-27

Myers, Helane

Mineral oils: processes and products

Refining

Organic acid or phenol contaminant removal

208264, 208189, C10G 1700

Patent

active

059285028

ABSTRACT:
The invention comprises a method for reducing the amount of carboxylic acids in petroleum feeds comprising the steps of (a) adding to said petroleum feed a catalytic agent comprising an oil soluble or oil dispersible compound of a metal selected from the group consisting of Group VB, VIB, VIIB and VIII metals, wherein the amount of metal in said petroleum feed is at least about 5 wppm, (b) heating said petroleum feed with said catalytic agent in a reactor at a temperature of about 400 to about 800.degree. F. (about 204.44 to about 426.67.degree. C.) and a pressure of about atmospheric to about 1000 psig (about 6996.33 kPa) in the substantial absence of hydrogen, and (c) sweeping the reactor containing said petroleum feed and said catalytic agent with an inert gas to maintain the combined water and carbon dioxide partial pressure below about 50 psia (344.75 kPa).

REFERENCES:
patent: 2734019 (1956-02-01), Miller
patent: 3870626 (1975-03-01), Plundo et al.
patent: 3876532 (1975-04-01), Plundo et al.
patent: 4740295 (1988-04-01), Bearden, Jr. et al.

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