Uop Lcc

Celanese International Corporation

Jeffery C. Bricker

Laurence O. Stine

Thomas A. Verachtert

Robert R. Frame

Jeffery C Bricker

Robert R Frame

Tamotsu Imai

John Qianjun Chen

Peter K Coughlin

Jennifer S Holmgren

Laurence O Stine

Thomas A Verachtert

Masao Takayama

James E Rekoske

Dean E Rende

Kouji Hara

Nobuyuki Aoi

Jeffrey L Boike

Deng-Yang Jan

Chunqing Liu

Blaise J Arena

Lubo Zhou

Ralph D Gillespie

Man-Wing Tang

Raisa Minkov

Sheila L Pollastrini

Jaime G Moscoso

Laszlo T Nemeth

Qianjun Chen

Anil Rajaram Oroskar

Kurt M Vanden Bussche

Gavin Paul Towler

Paula L Bogdan

Hayim Abrevaya

Leonid B Galperin

Tao Wang

David E Mackowiak

John M Foresman

Bryan L Benedict

Alakananda A Bhattacharyya

Joseph A Kocal

Bryan K Glover

Andrea G Bozzano

Maureen L Bricker

Mark G Riley

Andrew S Zarchy

Tai-Hsiang Chao

Mark J O'Hara

Gregory J Thompson

Debarshi Majumder

Guy B Woodle

Michelle J Cohn

Robert H Jensen

Syed A Faheem

Andrzej Z Ringwelski

Masaru Tatsushima

Andrey O Kuzmin

Bruce E Staehle

Lyle E Monson

Kenji Kikuchi

Koji Hara

Isao Tsunokuma

Hiroyuki Serizawa

A process for acid catalyzed alkylation involving the use of surfactants which form bi-continuous micro-emulsions with the liquid acid and the hydrocarbon is described. The bicontinuous phase formed between the hydrocarbon and liquid acid phases at surfactant addition facilitates and improves the liquid acid catalyzed alkylation reactions including motor-fuel alkylation reaction.

Liquid acid catalyzed alkylation process

Methods and systems are provided for converting methane in a feed stream to acetylene. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream may be treated to convert acetylene to a process stream having aromatic compounds. The acetylene stream can be reacted to generate larger hydrocarbon compounds, which are passed to a cyclization and aromatization reactor to generate aromatics. The method according to certain aspects includes controlling the level of carbon oxides in the hydrocarbon stream.

Production of aromatics from a methane conversion process

Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes processing the acetylene to form a hydrocarbon stream having vinyl chloride. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is be treated to convert acetylene to other hydrocarbon processes. The method according to certain aspects includes controlling the level of carbon monoxide in the hydrocarbon stream to limit downstream side reactions in the downstream processing units.

Production of vinyl chloride from a methane conversion process

Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes processing the acetylene to form a stream having acrylic acid. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is be treated to convert acetylene to acrylic acid. The method according to certain aspects includes controlling the level of carbon monoxide to prevent undesired reactions in downstream processing units.

Production of acrylic acid from a methane conversion process

Methods and systems are provided for converting methane in a feed stream to butanediol. The method includes processing acetylene as an intermediate stream to form a hydrocarbon stream including butanediol. A hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is treated to convert acetylene to another hydrocarbon process. The method according to certain aspects includes controlling the level of carbon monoxide to prevent undesired reactions in downstream processing units.

Production of butanediol from a methane conversion process

Methods and systems are provided for converting methane in a feed stream to acetylene. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream may be treated to convert acetylene to nitrogen based hydrocarbon compounds such as pyridines. The method includes the reaction of acetylene with ammonia and controlling the ratio of acetylene to ammonia to generate the desired nitrogen based hydrocarbon compound.

Production of nitrogen compounds from a methane conversion process

The present invention discloses a blends of an aromatic polyimide polymer and a polymer containing aromatic sulfonic acid groups that can be converted into polybenzoxazole (PBO) membranes for gas, vapor, and liquid separations. The PBO membranes that were prepared by thermal treating aromatic polyimide membranes containing between 0.05 and 20 wt-% of a poly(styrene sulfonic acid) polymer. These polymers showed up to 95% improvement in selectivity for CO/CHand H/CHseparations compared to PBO membranes prepared from corresponding aromatic polyimide membranes without a poly(styrene sulfonic acid) polymer.

Polybenzoxazole membranes

Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes processing acetylene as an intermediate stream to form a stream having oxygenates. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream may be treated to convert acetylene to oxygenates through subsequent reactors.

Production of oxygenates from a methane conversion process

Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes processing the acetylene to form a stream having acrylic acid. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is to be treated to convert acetylene to acrylic acid. The method according to certain aspects includes controlling the level of carbon monoxide to prevent undesired reactions in downstream processing units.

The present invention discloses a novel method to improve the selectivities of polybenzoxazole (PBO) membranes prepared from aromatic polyimide membranes for gas, vapor, and liquid separations. The PBO membranes that were prepared by thermal treating aromatic polyimide membranes containing between 0.05 and 20 wt-% of a poly(styrene sulfonic acid) polymer. These polymers showed up to 95% improvement in selectivity for CO/CHand H/CHseparations compared to PBO membranes prepared from corresponding aromatic polyimide membranes without a poly(styrene sulfonic acid) polymer.

Method to improve the selectivity of polybenzoxazole membranes

The present invention discloses high performance polybenzoxazole membranes prepared from aromatic poly(o-hydroxy amide) membranes by thermal cyclization and a method for using these membranes. The polybenzoxazole membranes were prepared by thermal treating aromatic poly(o-hydroxy amide) membranes in a temperature range of 200&#xb0; to 550&#xb0; C. under inert atmosphere. The aromatic poly(o-hydroxy amide) membranes used for making the polybenzoxazole membranes were prepared from aromatic poly(o-hydroxy amide) polymers comprising pendent phenolic hydroxyl groups ortho to the amide nitrogen in the polymer backbone. In some embodiments of the invention, the polybenzoxazole membranes may be subjected to an additional crosslinking step to increase the selectivity of the membranes. These polybenzoxazole membranes showed significantly improved permeability for gas separations compared to the precursor aromatic poly(o-hydroxy amide) membranes and are not only suitable for a variety of liquid, gas, and vapor separations, but also can be used in catalysis and fuel cells.

Polybenzoxazole membranes prepared from aromatic polyamide membranes

A layered composition which can be used in various processes has been developed. The composition comprises an inner core such as a cordierite core and an outer layer comprising a refractory inorganic oxide, a fibrous component and an inorganic binder. The refractory inorganic oxide layer can be alumina, zirconia, titania, etc. while the fibrous component can be titania fibers, silica fibers, carbon fibers, etc. The inorganic oxide binder can be alumina, silica, zirconia, etc. The layer can also contain catalytic metals such as gold and platinum plus other modifiers. The layered composition is prepared by coating the inner core with a slurry comprising the refractory inorganic oxide, fibrous component, an inorganic binder precursor and an organic binding agent such as polyvinyl alcohol. The composition can be used in various hydrocarbon conversion processes including production of vinyl acetate.

Layered composition and processes for preparing and using the composition

Processes for preparing alkenyl alkanoates using a layered catalyst composition

A layered composition which can be used in various processes has been developed. The composition comprises an inner core such as a cordierite core and an outer layer comprising a refractory inorganic oxide, a fibrous component and an inorganic binder. The refractory inorganic oxide layer can be alumina, zirconia, titania, etc. while the fibrous component can be titania fibers, silica fibers, carbon fibers, etc. The inorganic oxide binder can be alumina, silica, zirconia, etc. The layer can also contain catalytic metals such as gold and platinum plus other modifiers. The layered composition is prepared by coating the inner core with a slurry comprising the refractory inorganic oxide, fibrous component, an inorganic binder precursor and an organic binding agent such as polyvinyl alcohol. The composition can be used in various hydrocarbon conversion processes.

Growing community of inventors

Buffalo Grove, IL, United States of America

Jeffery C Bricker