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

1999-06-22

Myers, Helane

Mineral oils: processes and products

Refining

Organic acid or phenol contaminant removal

208264, 208189, C10G 1700

Patent

active

059140305

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.), under a hydrogen pressure of 15 psig to 1000 psig (204.75 to 6996.33 kPa), and (c) sweeping the reactor containing said petroleum feed and said catalytic agent with hydrogen-containing gas at a rate sufficient to maintain the combined water and carbon dioxide partial pressure below about 50 psia (about 344.75 kPa).

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