Uop Lcc

Alliedsignal Inc.

The United States of America As Represented by the Department of Energy

Santi Kulprathipanja

Richard W Neuzil

Stephen W Sohn

Michael T Cleary

Anil Rajaram Oroskar

Sudhir S Kulkarni

James W Priegnitz

Chunqing Liu

Bipin Virpal Vora

Laszlo T Nemeth

Richard R Willis

William A Leet

Stephen T Wilson

Edward W Funk

Terry L Marker

Bryan K Glover

Jennifer S Holmgren

R Joe Lawson

Peter R Pujado

James E Rekoske

John D Sherman

Norman N Li

Richard E Marinangeli

Thomas R Fritsch

Rusty M Pittman

Simon H Hobbs

Herman S Bloch

Armand J DERosset

Kenneth K Kuhnle

Marjorie S Patton

Stanley Joseph Frey

Gregory John Lewis

Joseph A Kocal

Gavin Paul Towler

Stephen Frederic Yates

David W House

Blaise J Arena

Suheil F Abdo

Lubo Zhou

Stephen R Dunne

James A Johnson

Robert S Haizmann

Lisa M Knight

Leonid B Galperin

Frank S Modica

Lynn H Rice

YuPo J Lin

Chin-Hsiung Chang

Sarabjit Singh Randhava

Gregory F Maher

Seth W Snyder

Linda Shi Cheng

John Markovs

Jamie Allen Hestekin

Mark E Schott

Thomas W Lorsbach

Michael P Henry

Daniel A Kauff

Jack Hurst

Jeffrey J Chiou

Stanley A Gembicki

Michael H Quick

John Y Park

John J Low

Annabelle I Benin

Richard L Fergin

Arthur M Landis

Bruce A Briggs

Daniel R Sioui

Y Alice Chang

Amedeo Napolitano

Cara Moy Roeseler

Timur V Voskoboinikov

Benjamin C Spehlmann

Yan Li

Jidapa Soontraratpong

Jutima Charoenphol

Darryl M Johnson, Sr

Scott A Strong

Scott E Commissaris

A method for separating a xylene from a feed mixture by contacting the feed mixture with a bed of adsorbent comprising metal organic framework crystals selective to the xylene.

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A mixed matrix adsorbent is found for use in the removal of light alkanes from a gasoline stream. The mixed matrix comprises two adsorbents with one adsorbent having an LTA type structure and the other adsorbent having an MFI structure.

Mixed matrix adsorbent for separation of gasoline components

A simulated moving bed adsorptive separation process for preparing the separate feed streams charged to naphtha reforming unit and a steam cracking unit has been developed. The feed stream to the overall unit is passed into the adsorptive separation unit. The desorbent in the adsorptive separation is C12 hydrocarbons. The simulated moving bed adsorptive separation separates the components of the feed stream into a normal paraffin stream, which is charged to the steam cracking process, and non-normal hydrocarbons which are passed into a reforming zone. The desorbent is readily separated from the normal paraffin stream and from the non-normal paraffin stream and the simulated moving bed adsorption zone is operated at an A/Fn ratio of from about 0.90 to about 0.92.

Ethylene production by steam cracking of normal paraffins

Processes for olefin/paraffin separation utilizing porous, hydrophobic poly(ether ether ketone) (PEEK) membranes are provided. In accordance with an exemplary embodiment, a process for olefin/paraffin separation comprises providing a porous membrane formed of PEEK polymer functionalized with hydrophobic groups, the porous membrane having a first surface and a second surface. The first surface of the porous membrane is contacted with a feed comprising an olefin and a paraffin and a permeate is caused to flow from the second surface of the porous membrane. The permeate has a concentration of the paraffin that is higher than a concentration of the paraffin of the feed.

Processes for olefin/paraffin separation utilizing porous, hydrophobic poly(ether ether ketone) membranes

The present invention is for crosslinked membranes and in particular for crosslinked poly(ethylene oxide)-cellulose acetate-silsesquioxane (PEO-CA-Si) organic-inorganic hybrid membranes and their use in gas separation. These crosslinked PEO-CA-Si membranes were prepared by in-situ sol-gel co-condensation of crosslinkable PEO-organotrialkoxysilane and CA-organotrialkoxysilane polymers in the presence of acetic acid catalyst during the formation of membranes. The crosslinkable PEO- and CA-organotrialkoxysilane polymers were synthesized via the reaction between the hydroxyl groups on PEO (or on CA) and the isocyanate on organotrialkoxysilane to form urethane linkages under mild conditions. The crosslinked PEO-CA-Si membranes exhibited both increased selectivity of CO/Nand COpermeability as compared to a CA membrane, suggesting that these membranes are very promising for gas separations such as CO/Nseparation.

Crosslinked organic-inorganic hybrid membranes and their use in gas separation

New ionic liquid-solid-polymer mixed matrix membranes were proposed for gas separations such as COremoval from natural gas or N. For the new mixed matrix membranes, the solids such as carbon molecular sieves, microporous molecular sieves, MCM-41 type of mesoporous molecular sieves, or polymer of intrinsic microporosity (PIM) are coated (or impregnated) with ionic liquids such as 1-butyl-3-methyl imidazolium bis[trifluoromethylsulfonyl]amide. The ionic liquids coated or impregnated solids are then dispersed in the continuous polymer matrix to form mixed matrix membranes. These hybrid mixed matrix membranes will combine the properties of the continuous polymer phase, the ionic liquids, and the dispersed ionic liquids coated or impregnated solids phase, which will possibly open up new opportunities for gas separation processes such as COseparation from natural gas or flue gas.

Ionic liquid-solid-polymer mixed matrix membranes for gas separations

Adsorbents and methods for the adsorptive separation of para-xylene from a mixture containing at least one other Caromatic hydrocarbon (e.g., a mixture of ortho-xylene, meta-xylene, para-xylene, and ethylbenzene) are described. Suitable binderless adsorbents (e.g., formulated with the substantial absence of an amorphous material that normally reduces selective pore volume), particularly those with a water content from about 3% to about 5.5% by weight, improve capacity and/or mass transfer. These properties are especially advantageous for improving productivity in low temperature, low cycle time adsorptive separation operations in a simulated moving bed mode.

Binderless adsorbents and their use in the adsorptive separation of para-xylene

The present invention relates to a membrane contactor assisted extraction system and method for extracting a single phase species from multi-phase working solutions. More specifically one preferred embodiment of the invention relates to a method and system for membrane contactor assisted water (MCAWE) extraction of hydrogen peroxide (HO) from a working solution.

Membrane contactor assisted water extraction system for separating hydrogen peroxide from a working solution, and method thereof

The present invention is a process for producing phenyl-alkanes by paraffin adsorptive separation followed by paraffin dehydrogenation and then by alkylation of a phenyl compound by a lightly branched olefin. The adsorptive separation step employs a silicalite adsorbent and, as the desorbent, a C-Clinear paraffin, a C-Ccycloparaffin, a branched paraffin such as isooctane, or mixtures thereof. The effluent of the alkylation zone comprises paraffins that are recycled to the adsorptive separation step or to the dehydrogenation step. This invention is also a process that that sulfonates phenyl-alkanes having lightly branched aliphatic alkyl groups that to produce modified alkylbenzene sulfonates. In addition, this invention is the compositions produced by these processes, which can be used as detergents having improved cleaning effectiveness in hard and/or cold water while also having biodegradability comparable to that of linear alkylbenzene sulfonates, as lubricants, and as lubricant additives. This invention is moreover the use of compositions produced by these processes as lubricants and lubricant additives.

Phenyl-alkane compositions produced using an adsorptive separation section

Adsorbents and methods for the adsorptive separation of meta-xylene from a mixture containing at least one other Caromatic hydrocarbon (e.g., a mixture of ortho-xylene, meta-xylene, para-xylene, and ethylbenzene) are described. Suitable adsorbents comprise sodium zeolite Y having an average crystallite size from about 50 to about 700 nanometers. The adsorbents provide improved separation efficiency, which may be associated with a higher meta-xylene mass transfer rate and/or other beneficial effects. Exemplary desorbents for use in the process may comprise toluene, benzene, or indan.

Adsorbent and process for the separation of meta-xylene from aromatic hydrocarbons

A process for separating C8 aromatics is disclosed. The process uses at least two adsorbents, and in particular a BaX zeolite and a KY zeolite, for the separation of para-xylene from a mixture of C8 aromatics.

Mixed matrix adsorbent for para-xylene separation

An adsorbent for removal of impurities from silicone based solvents is presented. The adsorbent is regenerable for repeated use in cleaning silicone based solvents.

Process for removing contaminants from silicone-based solvents

The present invention comprises a process for removal of oxygenates from a paraffin-rich or olefin-rich paraffin stream which comprises passing a feed stream, comprising one or more Cto Cfeed paraffins or Cto Colefin-rich paraffin stream and one or more oxygenates through an adsorbent bed comprising one or more adsorbents selected from silica gel, activated alumina and sodium x zeolites to remove essentially all of said oxygenates; and recovering said paraffins. A second adsorbent bed may be employed to more thoroughly remove these oxygenates.

Process for removal of oxygenates from a paraffin stream

Citric acid is separated from a fermentation broth containing gluconic acid by using an adsorbent comprising a water-insoluble, macroreticular or gel, strongly or weakly basic anionic exchange resin possessing quaternary or tertiary amine functional groups, said a anionic exchange resin having a cross-linked acrylic or styrene resin matrix and a desorbent comprising water or dilute sulfuric acid. The pH of the feed is maintained below the first ionization constant (pKa) of citric acid to maintain selectivity.

Separation of citric acid from gluconic acid in fermentation broth using a weakly or strongly basic anionic exchange resin adsorbent

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Inverness, IL, United States of America

Santi Kulprathipanja