Exxon Research and Engineering Company

Exxonmobil Research and Engineering Company

Other

Exxonmobil Upstream Research Company

David Craig Dalrymple

Guido Sartori

Saul Charles Blum

Warren A Thaler

David William Savage

Bruce Henry Ballinger

Mohsen Shahmirzadi Yeganeh

W S Ho

Liza Marie Monette

Dennis G Peiffer

William Edward Wales

Andreas Vogel

Walter Weissman

Randall David Partridge

Win-Sow Winston Ho

Robert P Mastondrea

Martin Leo Gorbaty

Bhupender S Minhas

William Neergaard Olmstead

Richard S Polizzotti

Arnold Lustiger

Craig Y Sabottke

Jack R Nyenhuis

Barbara Carstensen

Sheng-Yuan Hsu

Winston K Robbins

David P Yale

Shawn Michael Dougal

Nazish Hoda

Hemantkumar R Sahoo

Cheayao Zhang

Walter T Matuszek

Jianlin Wang

Craig Veleeke

Eric Herbolzheimer

Zhengyu Zhang

Arnold P Kushnick

David J Moser

The present systems and methods utilize a polyamic acid solution as a precursor to form a polyimide bead having desired properties. The polyamic acid solution may be formed into a polyamic acid droplet. The polyamic acid droplet is then processed to form a polyamic acid bead, such as by extraction of solvent to concentrate the polyamic acid or by partial chemical imidization of the polyamic acid. The polyamic acid bead is then better able to retain its shape during subsequent processing steps, such as drying and pressurizing, before final thermal imidization.

Systems and methods for forming high performance compressible objects

This invention relates to a polymeric membrane composition comprising an associating polymer. The polymer coating is characterized as having hard and soft segments where the hard segment comprises TMPA, combined with HDPA. The membrane may utilize a porous substrate.

Polymer membrane for separating aromatic and aliphatic compounds

A crosslinked polymeric membrane, such as a crosslinked polyvinyl sulfate membrane or a crosslinked copolymer polyvinyl sulfate and polyvinyl alcohol membrane, is provided. The membrane is suitable for use in an acid environment, and is suitable for recovering acid from a feed mixture comprising acid, hydrocarbons and water.

Acid tolerant polymeric membrane and process for the recovery of acid using polymeric membranes

This invention relates to a polymeric membrane composition utilizing the non-hazardous compound 4-aminophenyl disulfide ('APD'), a method of making the polymeric membrane, and a process for separating components of a feedstream utilizing the polymeric membrane. More particularly, but not by way of limitation, this invention relates to utilizing the polymeric membrane composition in a process for the separation of aromatics from a hydrocarbon feedstream containing aromatics and aliphatic compounds.

Membrane for separating aromatic and aliphatic compounds

The present invention relates to a method for inhibiting high temperature of corrosion-prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of phosphorous acid, typically up to 1000 wppm, to the metal surface.

Method for inhibiting corrosion using phosphorous acid

Eyeglasses are provided that have an inflatable bladder in the temple piece. The temple pieces of the frame do not extend to the ears of the wearer.

Eyeglass frame

The present invention relates to a method for inhibiting corrosion of corrosion-prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of certain sulfur and phosphorus-free aromatic compounds substituted with nitrogen, containing functional groups at the 5- or 3, 5-position, typically up to 1000 wppm, to the metal surface.

Method for inhibiting corrosion using certain phosphorus and sulfur-free compounds

The present invention relates to a method for inhibiting high temperature corrosion of corrosion prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of 4-sulfophthalic acid, typically up to 1000 wppm, to the metal surface.

Method for inhibiting corrosion using 4-sulfophthalic acid

The present invention relates to a method for inhibiting high temperature corrosion of corrosion prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of an additive aromatic compound tri-substituted with acidic functionalities selected from 5-hydroxyisophthalic acid and 1,3,5-benzenetricarboxylic acid, typically up to 1000 wppm, to the metal surface.

Method for inhibiting corrosion using certain aromatic acidic species

The present invention relates to a method for inhibiting high temperature corrosion of corrosion prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of triphenylstibine, typically up to 1000 wppm, to the metal surface.

Method for inhibiting corrosion using triphenylstibine

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 present invention is a process to remove a &plus;2 ionic charged, organically bound metal from a petroleum feed. The process includes contacting feed with aqueous carbon dioxide in the essential absence for emulsion formation.

Co2 treatment to remove organically bound metal ions from crude

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.

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Bloomsbury, NJ, United States of America

David Craig Dalrymple