Exxonmobil Research and Engineering Company

Exxon Research and Engineering Company

Exxonmobil Chemical Patents Inc.

Bal K Kaul

Craig Y Sabottke

Joseph T O'Bara

Dennis G Peiffer

David Lawrence Stern

David William Savage

Narasimhan Sundaram

Joseph L Feimer

Wenyih Frank Lai

Scott Jeffrey Weigel

Lei Zhang

David Charles Calabro

John Di-Yi Ou

Quanchang Li

Paul Podsiadlo

Robert J Falkiner

Darryl Donald Lacy

James William Gleeson

Lawrence J Lawlor

Edward Niessen

Stuart S Goldstein

J Patrick Dennis

Mohsen N Harandi

Stuart S Shih

Rocco A Fiato

Simon Christopher Weston

Teh Chung Ho

Gordon Frederick Stuntz

Walter Weissman

Randall David Partridge

Mobae Afeworki

Xiaochun Xu

Dana Lynn Pilliod

Brenda Anne Raich

Sebastian Carmen Reyes

James J Schorfheide

Himanshu Gupta

Charanjit Singh Paur

Jeenok Theresa Kim

Edward W Corcoran

William Edward Wales

Kiara M Benitez

Edward Kantner

David N Zinkie

Richard L Eckes

David A Griffin

John W Viets

Jasmina Poturovic

Sean C Smyth

Barry J Berkowitz

Meghan Nines

Gerald D Dupre

G Bryce McGarvey

Robert J Franco

John H Thurtoll

Greg A Marshall

Myles W Baker

Abhash Nigam

Donald C Runaldue

Sanjay K Bhatia

Benoit Touffait

Herve Innocenti

Jamil Zaari

Meredith B Gustafsson

Brian S Fox

David A Masciola

Bowornsak Wanichkul

Fred Y Lo

Bellows,Richard J

Dana L Pilloid

Julian A Wolfenbarger

Methods of preparing organosilica materials, which are a polymer comprising of at least one independent cyclic polyurea monomer of Formula wherein each Ris a ZOZZSiZgroup, wherein each Zrepresents a hydrogen atom, a C-Calkyl group, or a bond to a silicon atom of another monomer unit; each Zand Zindependently represent a hydroxyl group, a C-Calkyl group, a C-Calkoxy group or an oxygen atom bonded to a silicon atom of another monomer unit; and each Zrepresents a C-Calkylene group bonded to a nitrogen atom of the cyclic polyurea are provided herein. Methods of preparing and processes of using the organosilica materials, e.g., for gas separation, color removal, etc., are also provided herein.

Organosilica materials and uses thereof

Methods are provided herein for separating an aromatic compound from a lube base stock by contacting a lube base stock containing an aromatic compound with an organosilica material.

Methods of separating aromatic compounds from lube base stocks

An improved process for catalytic reformers and their use for the catalytic reforming of petroleum naphthas. More particularly, the invention relates to an improved reformer unit which can be operated at higher throughput relative to compressor size. The invention utilizes pressure swing adsorption to improve the hydrogen content of hydrogen containing streams generated by and utilized in catalytic reforming processes. The invention also has the capability of enabling compressor-limited catalytic reforming units to be operated at increased capacities.

Catalytic reformer unit and unit operation

This invention relates to process for producing a reformate or gasoline product. The process involves a rapid cycle of reacting hydrocarbon feedstock to form the product and then regenerating the catalyst used in the reaction. The process can be carried out at relatively high liquid hourly space velocities and preferably at relatively low hydrogen to hydrocarbon ratios to produce a reformed product having relatively high liquid yield and hydrogen content.

Rapid cycle reforming process

This invention relates to an improved hydrotreating process for removing sulfur from naphtha and distillate feedstreams. This improved process utilizes a hydrotreating zone, an acid gas removal zone, and a pressure swing adsorption zone having a total cycle time of less than about 30 seconds for increasing the concentration of hydrogen utilized in the process.

Hydrotreating process with improved hydrogen management

An improved process for hydrocracking heavy petroleum feedstocks wherein hydrogen-containing streams associated with a hydrocracker are subjected to rapid cycle pressure swing adsorption having a cycle time of less than 30 S.

Hydrocracking of heavy feedstocks with improved hydrogen management

An improved hydrotreating process for removing sulfur from distillate boiling range feedstreams. This improved process utilizes a two stage hydrotreating process scheme, each stage associated with an acid gas removal zone wherein one of the stages utilizes a rapid cycle pressure swing adsorption zone to increase the concentration of hydrogen in the process.

Two stage hydrotreating of distillates with improved hydrogen management

A method for the removal of entrained hydrocarbons, particularly aromatics, from water by extracting the hydrocarbons in the water with a hydrocarbon which is relatively less soluble in the water than the entrained hydrocarbon. The hydrocarbons are then separated from the water by a process of coalescence/separation. The extractant is suitably a paraffinic hydrocarbon which, while having an affinity for the entrained hydrocarbon, is relatively less soluble in water than hydrocarbons such as aromatics. The hydrocarbons removed from the water can be recirculated to the feed with the composition of the recirculating phase being controlled to achieve the desired level of hydrocarbon removal.

Separation of hydrocarbons from water

This invention relates to the fabrication of a polymeric membrane and a process for utilizing the polymeric membrane for separating components of a feedstream. More particularly, but not by way of limitation, this invention relates to the fabrication of a polymeric membrane and a process for utilizing the polymeric membrane in the separation of aromatics from a hydrocarbon based feedstream. The membranes of the present invention possess low soft segment glass transition temperatures and improved separation characteristics.

Chemically cross-linked polymeric membranes and method of use

A method of drying liquid and gaseous hydrocarbons by contacting a feed stream of the hydrocarbon with an aqueous solution of a salt drying agent prior to passing the stream through a salt dryer to remove part of the water in the stream. The aqueous solution of the salt drying agent is generated in the salt dryer when the partly dried stream comes into contact with the drying salt and forms the solution. The solution is circulated in a loop from the salt dryer to the incoming feed and then through a liquid/liquid coalescer which removes a portion of the water together with dissolved salt from the mixture before the mixture is passed on to the salt dryer where further removal of water occurs. The salt dryer is off-loaded by a substantial factor by the initial partial dehydration and does not require to remove such a large amount of water; the salt consumption is therefore reduced in proportion to the amount of water removed in the treatment steps which precede the dryer.

Salt drying process

A method for removing ionic, organic and elemental mercury from aqueous streams such as wastewater streams from hydrocarbon processing. The method comprises four primary removal steps. First, a mercury precipitant is added to the stream to convert dissolved ionic species of mercury water-insoluble form. The majority of these precipitated solids, as well as other forms of particulate mercury, are subsequently removed by means of gas flotation. Following the flotation step, additional particulate and precipitated ionic mercury removal is accomplished with media filtration and finally, activated carbon acts to remove the remaining dissolved ionic mercury species as well as elemental and organic forms of mercury.

Wastewater mercury removal process

The present invention is directed to a process for producing a diesel fuel of enhanced cetane value from low cetane distillate and diesel boiling range fractions from poor crudes such as naphthenic crudes.

Process for improving the cetane rating of distillate and diesel boiling range fractions

The management of hydrogen in hydrogen-containing streams associated with petrochemical process units wherein the hydrogen-containing stream is subjected rapid cycle pressure swing adsorption to increase the concentration of hydrogen therein.

Hydrogen management in petrochemical process units

The present invention pertains to a process for the separation of aromatics from a feed stream, including aromatics and non-aromatics by selectively permeating the aromatics through a membrane comprising feeding a mixed phase vapor-liquid feed to a membrane wherein said liquid phase preferentially wets the surface of the membrane.

Membrane separation process using mixed vapor-liquid feed

This invention relates to a polymer membrane assembly for selective separation of permeate compositions by carbon weight. This invention also relates to a process for utilizing these polymer membrane assemblies in separation processes for selective carbon weight separation of hydrocarbon feedstreams components. More particularly, but not by way of limitation, this invention relates to the use membrane assemblies for the selective separation by carbon weight of aromatics from a hydrocarbon based feedstream.

Chromatographic membrane separation

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Randolph, NJ, United States of America

Bal K Kaul