Exxonmobil Research and Engineering Company

Exxonmobil Upstream Research Company

Exxonmobile Research and Engineering Company

Edward W Corcoran

Frank Hershkowitz

Stephen M Cundy

Daniel Paul Leta

Eric Bart Sirota

Stephen Harold Brown

Martin Leo Gorbaty

David T Ferrughelli

Preeti Kamakoti

Anjaneya Sarma Kovvali

Paul F Keusenkothen

Harry William Deckman

Wieslaw J Roth

John Di-Yi Ou

Narasimhan Sundaram

David Stern

Miroslav Petro

Bruce T Kelley

Ronald Richard Chance

Bal K Kaul

Peter I Ravikovitch

Halou Oumar-Mahamat

P Scott Northrop

Pavel Kortunov

Kirk C Nadler

Paul Scott Northrop

Sebastian Carmen Reyes

Keith K Aldous

Avelino Corma Canos

Susana Valencia Valencia

Craig Y Sabottke

Brian Erik Henry

Peter C Rasmussen

Thomas Harding McWaid

Martin N Webster

Paul S Northrop

Li Song

Paul Lawrence Tanaka

Richard L Eckes

Miguel Palomino Roca

Angel Cantin Sanz

Marykathryn Lee

Andrew Kaldor

John H Hollenbach

Merryl J Miranda

James D Dearth

Lisa M Rogers

Yan Ying Chan

Fernando Rey Garcia

Yu Wang

Brian E Henry

Thomas H Mcwaid

Charanjit S Paur

Ronald R Chance

Wieslaw Roth

The present application is directed to a method and system for preparing gaseous utility streams from gaseous process streams, particularly, removing oil contamination from such streams prior to use in a dry gas seal. The methods and systems may include at least one kinetic swing adsorption process including pressure swing adsorption, temperature swing adsorption, calcination, and inert purge processes to treat gaseous streams for use in dry gas seals of rotating equipment such as compressors, turbines and pumps and other utilities. The adsorbent materials used include a high surface area solid structured microporous and mesoporous materials.

Method and apparatus for removal of oil from utility gas stream

The identification, synthesis, and use of an isomorphously substituted molecular sieve material having structural frameworks substituted with a preselected substitution element for a framework element of the molecular sieve material can result in a preferred transport controlling window size range for the optimal separation of a target gas component from a gaseous mixture containing said target gas component.

Identification and use of an isomorphously substituted molecular sieve material for gas separation

This invention relates to a process for producing a product stream with improved reduction of Conradson Carbon Residue ('CCR') and a reduced average boiling point from a heavy hydrocarbon feedstream utilizing a high-pressure, low-energy separation process. The invention may be utilized to reduce the CCR content and reduce the average boiling point in heavy hydrocarbon feedstreams, such as whole crudes, topped crudes, synthetic crude blends, shale oils, bitumen, oil from tar sands, atmospheric resids, vacuum resids, or other heavy hydrocarbon streams. This invention also results in a process with an improved CCR separation efficiency while maintaining permeate flux rates.

Reduction of conradson carbon residue and average boiling points utilizing high pressure ultrafiltration

This invention relates to an ultrafiltration process for separating a heavy hydrocarbon stream to produce an enriched saturates content stream(s) utilizing an ultrafiltration separations process. The enriched saturates content streams can then be further processed in refinery and petrochemical processes that will benefit from the higher content of saturated hydrocarbons produced from this separations process. The invention may be utilized to separate heavy hydrocarbon feedstreams, such as whole crudes, topped crudes, synthetic crude blends, shale oils, oils derived from bitumen, oils derived from tar sands, atmospheric resids, vacuum resids, or other heavy hydrocarbon streams into enriched saturates content product streams. The invention provides an economical method for separating heavy hydrocarbon stream components by molecular species instead of molecular boiling points.

Enhancement of saturates content in heavy hydrocarbons utilizing ultrafiltration

A heavy residual petroleum feed boiling above 650&#xb0; F.(345&#xb0; C.+) is subjected to membrane separation to produce a produce a permeate which is low in metals and Microcarbon Residue (MCR) as well as a retentate, containing most of the MCR and metals, the retentate is then subjected to hydroconversion at elevated temperature in the presence of hydrogen at a hydrogen pressure not higher than 500 psig (3500 kPag) using a dispersed metal-on-carbon catalyst to produce a hydroconverted effluent which is fractionated to give naphtha, distillate and gas oil fractions. The permeate from the membrane separation may be used as FCC feed either as such or with moderate hydrotreatment to remove residual heteroatoms. The process has the advantage that the hydroconversion may be carried out in low pressure equipment with a low hydrogen consumption as saturation of aromatics is reduced.

Hydroconversion process for petroleum resids using selective membrane separation followed by hydroconversion over carbon supported metal catalyst

A heavy residual petroleum feed boiling above 650&#xb0; F.+ (345&#xb0; C.+) is subjected to hydroconversion at elevated temperature in the presence of hydrogen at a hydrogen pressure not normally higher than 500 psig (3500 kPag) using a dispersed metal-on-carbon catalyst to produce a hydroconverted effluent which is fractionated to form a low boiling fraction and a relatively higher boiling fraction which is subjected to membrane separation to produce a permeate which is low in metals and Microcarbon Residue (MCR) as well as a retentate, containing most of the MCR and metals. The process has the advantage that the hydroconversion may be carried out in low pressure equipment with a low hydrogen consumption as saturation of aromatics is reduced.

Hydroconversion process for petroleum resids by hydroconversion over carbon supported metal catalyst followed by selective membrane separation

This invention relates to a process for separating a heavy hydrocarbon stream to produce at least one permeate product stream and at least one retentate product stream. The process utilizes an ultrafiltration process to designed to maximize the quality of the permeate and retenate product streams as well as process embodiments which improve permeate production quantities as well as improve the quality of the product streams obtained by the separations process. In preferred embodiments, the process includes configuration and operational parameters to maximize permeate yield and selectivity.

Process for separating a heavy oil feedstream into improved products

This invention relates to a process of producing an upgraded product stream from steam cracker tar feedstream suitable for use in refinery or chemical plant processes or for utilization in fuel oil sales or blending. This process utilizes an ultrafiltration process for separating the steam cracker tar constituents resulting in a high recovery, low-energy process with improved separation and product properties.

Production of an upgraded stream from steam cracker tar by ultrafiltration

The present invention relates to a process for improving a deasphalting unit process by producing an improved feedstream for the deasphalting process via ultrafiltration of a vacuum resid-containing feedstream. In particular, the present invention produces an improved quality feedstream to a solvent deasphalting process which results in improved deasphalted oil (DAO) production rates and/or higher quality deasphalted oils. The present invention can be particularly beneficial when used in conjunction with an existing deasphalting equipment to result in improved deasphalted oil (DAO) production rates and/or higher quality deasphalted oils from the existing deasphalting equipment without the need for significant equipment modifications to the existing deasphalting unit.

Deasphalter unit throughput increase via resid membrane feed preparation

The present invention is a method for operating a rapid cycling pressure swing adsorption (RCPSA) having a cycle time, T, to separate a feed gas into a non-adsorbed gas and tail gas. The method includes the steps of passing the feed gas having a purity of F % at high pressure into a first end of a bed which selectively adsorbs the tail gas and passes the product gas out a second end of the bed for a time, F. The product gas has a purity, P %, and a rate of recovery of R %. Then the bed is cocurrently depressurized for a time, t, followed by countercurrently depressurizing the bed for a time, t. The bed is then purged for a time, t, wherein desorbate (tail gas) is released at the first end of the bed at a pressure greater than 30 psig, Subsequently the bed is repressurized for a duration, t.R&#x3e;80%, P/F&#x2267;1.1 or R&#x2267;90%, 0&#x3c;P/F &#x3c;1.1.

Integration of rapid cycle pressure swing adsorption with refinery process units (hydroprocessing, hydrocracking, etc.)

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Easton, PA, United States of America

Edward W Corcoran