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Ford Global Technolgoies, LLC

Union Carbide Corporation

David A Lesch

Stephen T Wilson

Chunqing Liu

Robert L Patton

Gregory J Gajda

Edith M Flanigen

Beckay J Mezza

Thomas M Reynolds

Lance Lyle Jacobsen

Brian S Konrad

Brent M Lok

Wei Pan

Linda Shi Cheng

Man-Wing Tang

Julio C Marte

Steven F Zink

Sesh Prabhakar

Joseph T Kozlowski

Sergio Sanchez

Gregory John Lewis

Paul T Barger

Peter K Coughlin

Jennifer S Holmgren

Jun Yang

Lorenz J Bauer

Christopher Mark Wolverton

Hemant W Dandekar

R Lyle Patton

Donald Siegel

Syed A Faheem

James G Vassilakis

John J Low

John I Hammerman

Naomi A Woodard

Andrea Sudik

Hermant W Dandekar

Cara Moy Roeseler

Chunoing Liu

Jw Adriaan Sachtler

Paul M Dosek

Cynthia R Berinti-Vondrasek

A catalyst is provided for hydrodeoxygenation and hydroisomerization of paraffins having higher activity. The catalyst contains a molecular sieve, such as SAPO-11, a metal component such as platinum and/or palladium or nickel tungsten sulfide or nickel molybdenum sulfide and a binder such as gamma alumina. The catalyst exhibits a high proportion of weak acid sites and a relatively equal distribution of the metal component on the molecular sieve and the binder.

Selective hydroisomerization catalyst

FAU type binderless zeolitic adsorbents and methods for making the FAU type binderless adsorbents are described. The binderless zeolitic adsorbent comprises a first FAU type zeolite having a silica to alumina molar ratio below 3.0; a binder-converted FAU type zeolite having a silica to alumina molar ratio of from about 2.5 to about 6.0, wherein the binder-converted FAU type zeolite may be 5-50% of the binderless zeolitic adsorbent; and cationic exchangeable sites within the binderless zeolitic adsorbent. The FAU type binderless adsorbents may be used for xylene separation and purification in selective adsorptive separation processes using binderless zeolitic adsorbents.

Binderless zeolitic adsorbents

The present invention generally relates to binderless zeolitic adsorbents and methods for making the binderless adsorbents. More particularly, the invention relates to FAU type binderless zeolitic adsorbents and methods for making the FAU type binderless adsorbents. The FAU type binderless adsorbents may be used for xylene separation and purification in selective adsorptive separation processes using binderless zeolitic adsorbents.

This invention involves a composition, a method of making, and an application of high plasticization-resistant chemically cross-linked polymeric membranes such as cross-linked cellulose acetate (CA) membrane. These cross-linked polymeric membranes with covalently interpolymer-chain-connected rigid networks showed no decrease in CO/CHideal selectivity under 690 kPa (100 psig) pure COpressure and also no COplasticization up to 3447 kPa (500 psig) pure COpressure. By using the method of chemical cross-linking as described in this invention, the separation characteristics of the polymeric membranes can be decisively improved. These new cross-linked polymeric membranes can be used not only for gas separations such as CO/CHand CO/Nseparations, O/Nseparation, olefin/paraffin separations (e.g. propylene/propane separation), iso/normal paraffins separations, but also for liquid separations such as pervaporation and desalination.

High plasticization-resistant cross-linked polymeric membranes for separations

The present invention discloses microporous aluminophosphate (AlPO) molecular sieve membranes and methods for making and using the same. The microporous AlPOmolecular sieve membranes, particularly small pore microporous AlPO-14 and AlPO-18 molecular sieve membranes, are prepared by three different methods, including in-situ crystallization of a layer of AlPOmolecular sieve crystals on a porous membrane support, coating a layer of polymer-bound AlPOmolecular sieve crystals on a porous membrane support, and a seeding method by in-situ crystallization of a continuous second layer of AlPOmolecular sieve crystals on a seed layer of AlPOmolecular sieve crystals supported on a porous membrane support. The microporous AlPOmolecular sieve membranes have superior thermal and chemical stability, good erosion resistance, high COplasticization resistance, and significantly improved selectivity over polymer membranes for gas and liquid separations, including carbon dioxide/methane (CO/CH), carbon dioxide/nitrogen (CO/N), and hydrogen/methane (H/CH) separations.

Microporous aluminophosphate molecular sieve membranes for highly selective separations

The present invention discloses an approach for making mixed matrix membranes (MMMs) and methods for using these membranes. These MMMs contain a continuous polymer matrix and dispersed microporous molecular sieve particles. This invention also pertains to control of the thickness of the thin dense selective mixed matrix membrane layer that is equal to or greater than the particle size of the largest molecular sieve particles for making large scale asymmetric MMMs. In particular, the invention is directed to making asymmetric flat sheet MMM by a phase inversion technique. The MMMs of the present invention exhibit at least 20% increase in selectivity compared to the polymer membranes prepared from their corresponding continuous polymer matrices. The MMMs of the present invention are suitable for a variety of liquid, gas, and vapor separations.

Molecular sieve/polymer asymmetric flat sheet mixed matrix membranes

This invention describes a new concept of flexible template-directed microporous partially pyrolyzed polymeric membranes which have greatly improved performance in separation of gas pairs compared to their precursor polymeric membranes. Organic hosts, such as crown ethers, cyclodextrins (CDs), calixarenes (CXs), and spherands, or polymeric additives, such as poly(ethylene glycol) (PEG) and polyvinylpyrrolidone (PVP) were used as the micropore-forming templates. Micropore-forming template/polymer blend membranes comprising organic micropore-forming templates embedded in a polymer matrix were prepared by dissolving the organic micropore-forming templates in the polymer solution followed by solution-casting and solvent evaporation or solvent exchange. Low-temperature selectively pyrolyzing micropore-forming templates in the micropore-forming template/polymer blend membranes at a nitrogen flow resulted in the formation of flexible microporous partially pyrolyzed polymeric membranes.

Flexible template-directed microporous partially pyrolyzed polymeric membranes

The present invention discloses a new type of high performance mixed matrix membranes (MMMs) and methods for making and using the same. The MMMs comprise a continuous polymer matrix and at least two types of molecular sieves dispersed therein. The continuous polymer matrix in the MMM contains at least one type of polymer. The MMM in the form of a dense film, asymmetric flat sheet membrane or otherwise prepared exhibits simultaneously improved selectivity and permeability for gas separations compared to polymer membranes made from a continuous polymer matrix without any molecular sieves or with only one type of molecular sieve. MMMs of the present invention are suitable for a wide range of gas, vapor, and liquid separations such as alcohol/water, CO/CH, H/CH, O/N, CO/N, olefin/paraffin, iso/normal paraffins, and other light gases separations.

High performance mixed matrix membranes incorporating at least two kinds of molecular sieves

The present invention discloses a novel method of making high performance mixed matrix membranes (MMMs) using stabilized concentrated suspensions of solvents, uniformly dispersed polymer stabilized molecular sieves, and at least two different types of polymers as the continuous blend polymer matrix. MMMs as dense films or asymmetric flat sheet or hollow fiber membranes fabricated by the method described in the current invention exhibit significantly enhanced permeation performance for separations over the polymer membranes made from the continuous blend polymer matrix. MMMs of the present invention are suitable for a wide range of gas, vapor, and liquid separations such as alcohol/water, CO/CH, H/CH, O/N, CO/N, olefin/paraffin, iso/normal paraffins, and other light gases separations.

Gas separations using high performance mixed matrix membranes

Method of making high performance mixed matrix membranes using suspensions containing polymers and polymer stabilized molecular sieves

A reversible hydrogen storage composition having an empirical formula of:LiNMgBHwhere 0.4&#x2266;x&#x2266;0.8; 0.2&#x2266;y&#x2266;0.6; 0&#x3c;z&#x2266;0.4, x+y+z=1 and 'w' varies from 0 to 2x+2y+4z. This composition shows greater low temperature reversible hydrogen storage compared to binary systems such as MgH&#x2014;LiNH.

Multi-component hydrogen storage material

The present invention is for high performance UV-cross-linked membranes from polymers of intrinsic microporosity (PIMs) and the use of such membranes for separations. More specifically, the invention involves the methods of making UV-cross-linked membranes from PIMs. These membranes were prepared by cross-linking the UV-cross-linkable membranes from PIMs by exposure to UV-radiation. Pure gas permeation test results demonstrate that the UV-cross-linked membranes from PIMs exhibit CO/CHperformance well above the Robeson's polymer upper bound trade-off curve for CO/CHseparation. They have more than doubled selectivity for CO/CHand extremely high permeability of COcompared to the original UV-cross-linkable membranes from PIMs. These membranes also show excellent separation performance for CO/N, H/CH, O/N, and propylene/propane separations. These high performance UV-cross-linked membranes are very useful for gas and liquid separations such as CO/CH, CO/N, H/CH, O/N, olefin/paraffin, deep desulfurization of gasoline and diesel fuels, and ethanol/water separations.

UV-cross-linked membranes from polymers of intrinsic microporosity for liquid separations

A process for preparing beads of various compositions has been developed. The process involves preparing a reaction mixture of sources of framework elements of a molecular sieve. The reaction mixture can optionally contain molecular sieve seeds. Additional sources of the framework elements are added to give a concentration above the critical supersaturation limit thereby forming beads. Depending on the composition of the reaction mixture and the reaction conditions one can obtain beads which are substantially amorphous, to beads that are substantially crystalline molecular sieve. These beads in turn can be further processed to deposit a molecular sieve layer onto the beads.

Process for preparing molecular sieve beads

A process for preparing a layered composition has been developed. The composition comprises an inner core and an outer layer comprising a molecular sieve. The process involves providing a slurry comprising inner core particles and sources of the framework elements of the molecular sieve. To this slurry there are added nutrient(s), i.e. framework element sources thereby forming crystals of the molecular sieve which agglomerate onto the inner core. The process is carried out for a time sufficient to form a layer of desired thickness.

Process for preparing a layered molecular sieve composition

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Hoffman Estates, IL, United States of America

David A Lesch