Exxon Research and Engineering Company

Exxonmobil Research and Engineering Company

Bruce Henry Ballinger

Guido Sartori

David William Savage

David Craig Dalrymple

Saul Charles Blum

Martin Leo Gorbaty

W S Ho

David J Martella

Trikur Anantharaman Ramanarayanan

Michael Paul Anderson

Warren A Thaler

Robert P Mastondrea

William Neergaard Olmstead

Winston K Robbins

William Edward Wales

Robert E Noone

Win-Sow Winston Ho

The invention relates to processes for treating acidic crudes or fractions thereof to reduce or eliminate their acidity and corrosivity by addition of suitable amounts of Group IA or Group IIA oxides, hydroxides and hydrates and Group IIA metal naphthenate salts. The process has the additional benefits of reducing materials handling problems associated with treating acidic crude oils using liquid solvents and in reducing emulsion formation.

Process for decreasing the acid content and corrosivity of crudes

The invention relates to processes for treating acidic crudes or fractions thereof to reduce or eliminate their acidity by addition of effective amounts of crosslinked polymeric amines having a pKa of greater than 9 such as polyvinyl amine and anionic exchange resins having amino groups. The process has utility for crude processing.

Process for extraction of naphthenic acids from crudes

The present invention is a process for decreasing the acidity of a starting acidic crude oil by contacting an acidic crude with an effective excess of ammonia dissolved in said crude to form an ammonia-continuous oil discontinuous phase at a temperature and conditions sufficient to form the corresponding amide of the naphthenic acids. The process is useful in the processing of acidic crudes.

Process for treatment of petroleum acids with ammonia

The present invention relates to a process for reducing the acidity of a petroleum oil containing organic acids comprising treating said petroleum oil containing organic acids with an effective amount of an alcohol at a temperature and under conditions sufficient to form the corresponding ester of said alcohol.

Esterification of acidic crudes

The invention relates to processes for treating acidic crudes or fractions thereof to reduce or eliminate their acidity by addition of effective amounts of crosslinked polymeric amines. The process has utility for crude processing.

Process for decreased the acidity of crudes using crosslinked polymeric

The present invention is a process to remove a +2 ionic charged metal from a petroleum feed. The process includes contacting feed with carbon dioxide at a temperature between 40.degree. C. and 200.degree. C. and autogenous pressure. In a preferred embodiment the metal is a Group II metal. In particular, the metal is calcium.

CO.sub.2 treatment to remove +2 ionic metal from crude

Process for neutralization of petroleum acids using overbased detergents

The present invention is a process to remove a +2 ionic charged metal from a petroleum feed. The process includes contacting the feed with a resin that includes carboxyl, sulfonic and/or phosphonic groups. In a preferred embodiment the metal is a Group II metal. In particular, the metal is calcium.

Removal of +2 ion charged metal dissolved in a petroleum feed

The invention relates to a process for treating naphthenic acid--containing whole crudes or fractions thereof to reduce or eliminate their acidity by contacting the acidic whole crude or fraction at a temperature of from about 50.degree. C. to 350.degree. C. with a neutralizing amount of tetraalkylammonium hydroxide, preferably tetramethyl-ammonium hydroxide. The process has the additional benefits of reducing materials handling problems associated with treating oils using liquid solvents and in reducing emulsion formation.

Process for neutralization of petroleum acids

The invention relates to a process for treating naphthenic acid-containing whole crudes or fractions thereof to reduce or eliminate their acidity by contacting the acidic whole crude at a temperature of from about 60.degree. C. to 170.degree. C. with a neutralizing amount of alkali metal trialkylsilanolates. The process has the additional benefits of reducing materials handling problems associated with treating crudes using liquid solvents and in reducing emulsion formation.

Process for neutralization of petroleum acids using alkali metal

The present invention includes the use of crosslinked fluorinated polyolefin membranes membranes for the separation of aromatics from saturates, wherein aromatics can contain sulfur and nitrogen.

Fluorinated polyolefin membranes for aromatics/saturates separation

The present invention describes a method for the synthesis of saturated aliphatic polyesters by reaction of saturated or aromatic diacid chlorides with oligomeric aliphatic polyester diols, a method to thermally crosslink membranes prepared from the above saturated aliphatic polyesters, and the use of the crosslinked membranes to separate aromatics from saturates.

Saturated polyesters and crosslinked membranes therefrom for

The present invention described a method for the synthesis of saturated aliphatic polyesters by reaction of saturated or aromatic diacid chlorides with oligomeric aliphatic polyester diols, a method to thermally crosslink membranes prepared from the above saturated aliphatic polyesters, and the use of the crosslinked membranes to separate aromatics from saturates.

A new copolymer composition comprising the soft segment of an aliphatic polyester and the hard segment of a highly halogenated polyurethane containing from 3 to 36 halogen atoms is disclosed. The new halogenated polyurethane copolymer membrane has high thermal stability, and good selectivity and permeability for separation of an aromatic/saturate mixture.

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Bloomsbury, NJ, United States of America

Bruce Henry Ballinger