Uop Lcc

Celanese International Corporation

Dean E Rende

Antoine Negiz

James E Rekoske

Edwin Paul Boldingh

Masao Takayama

Gregory J Gajda

Jeffery C Bricker

Gregory F Maher

Kouji Hara

Nobuyuki Aoi

Jeffrey L Boike

Stephen W Sohn

Paul T Barger

Bryan K Glover

Mark G Riley

Jayant Kumar Gorawara

David E Mackowiak

Paula L Bogdan

Andrea G Bozzano

Deng-Yang Jan

Robert L Bedard

R Joe Lawson

Tao Wang

Karl Z Steigleder

Andrew W Broerman

Stanley Joseph Frey

Peter K Coughlin

Vasant P Thakkar

John Qianjun Chen

Laura Elise Leonard

James A Johnson

Wei Pan

Mary Jo Wier

Bryan James Egolf

Guy B Woodle

Debarshi Majumder

Patrick Jerome Bullen

Jeffrey L Pieper

Gail L Gray

Jorge Charr

Christopher J Vogel

Paul G Wing

Yue Zhu

Jeffery Pieper

Steven B Philoon

Gary Malott

Gary S Malott

Catalysts used for catalytic reforming are treated with organic chloride to condition the catalysts. Chloride treaters may be located in the product streams to remove the chloride contaminants. The continuous catalyst reforming process, including the catalyst reformer unit and chloride treaters, may be monitored in order to predict when adsorbent replacement or regeneration is needed. For example, one or more sensors and measurement devices may be used to monitor certain conditions or parameters. A system may be configured to take one or more actions in response to certain conditions or parameters being met.

Remote monitoring of chloride treaters using a process simulator based chloride distribution estimate

A naphtha hydrotreating process involves the use of a sulfur guard bed (SGB) with a controlled bypass which allows for control of the sulfur in the feed to a downstream processing unit. The SGB is installed on the light ends stripper bottoms stream in a naphtha hydrotreating unit.

Naphtha hydrotreating process with sulfur guard bed having controlled bypass flow

Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes removing at least a portion of glycols from a hydrocarbon stream. 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 another hydrocarbon process. The method according to certain aspects includes controlling the level of glycols and in particular, dimethyl ethers of polyethylene glycol in the hydrocarbon stream.

Glycols removal and methane conversion process using a supersonic flow reactor

A process for removing at least one product from coal tar is described. The process involves extraction with an extraction agent or adsorption with an adsorbent. The extraction agent includes at least one of amphiphilic block copolymers, cyclodextrins, functionalized cyclodextrins, and cyclodextrin-functionalized polymers, and the adsorbent includes exfoliated graphite oxide, thermally exfoliated graphite oxide or intercalated graphite compounds.

Process for removing a product from coal tar

One exemplary embodiment can be a process for increasing a mole ratio of methyl to phenyl of one or more aromatic compounds in a feed. The process can include reacting an effective amount of one or more aromatic compounds and an effective amount of one or more aromatic methylating agents to form a product having a mole ratio of methyl to phenyl of at least about 0.1:1 greater than the feed.

Process for increasing a mole ratio of methyl to phenyl

A process for purifying at least one product from coal tar is described. The process involves separating a coal tar fraction having a boiling point in the range of about 180&#xb0; C. to about 230&#xb0; C. into an acidic portion and a non-acidic portion by contacting the fraction with a caustic compound. The acidic portion is separated into a cresol portion and a xylenol portion, and the non-acidic portion is separated into a naphthalene portion and a naphthalene co-boiler portion. The acidic portion and the non-acidic portions are separated by contacting with an adsorbent comprising small, discrete crystallites, the adsorbent having less than 10 wt % amorphous binder component. The various portions can be separated in a similar manner.

Process for purifying products from coal tar

Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes removing at least a portion of acids from a hydrocarbon stream. 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 another hydrocarbon process. The method according to certain aspects includes controlling the level of acids in the hydrocarbon stream by use of adsorbents or basic solutions.

Acids removal and methane conversion process using a supersonic flow reactor

The present invention provides a method of increasing stability of a catalyst used in a dehydrogenation process. The method includes storing fresh catalyst in a reduction zone, passing a gas through the reduction zone, introducing hydrocarbons and hydrogen gas into a reactor positioned downstream from the reduction zone to facilitate a dehydrogenation reaction, and replenishing spent catalyst in the reactor with fresh catalyst from the reduction zone. The gas has a moisture content at or below about 4000 ppmv and a temperature at or below about 290&#xb0; C. The reactor includes catalyst for increasing the rate of the dehydrogenation reaction. The moisture content of the gas may be reduced to at or below about 4000 ppmv by passing the gas through a drier or by using an inert gas stream. The temperature of the gas may also be reduced.

Effect of wet reduction on catalyst stability and methods of maintaining catalyst stability

A process for selective hydrogenation of hydrocarbons is presented. The process uses a catalyst to selectively hydrogenate acetylenes and diolefins to increase the monoolefins in a product stream. The catalyst in the process includes a layered structure with an inert inner core and an outer layer bonded to the inner core, where the outer layer is a metal oxide and has at least two metals deposited on the outer layer.

Methods for selective hydrogenation performance using a layered sphere catalyst with new formulations

One exemplary embodiment can be a process for increasing a mole ratio of methyl to phenyl of one or more aromatic compounds in a feed. The process can include reacting an effective amount of one or more aromatic compounds and an effective amount of one or more non-aromatic compounds to convert about 90%, by weight, of one or more C6non-aromatic compounds.

Process for increasing methyl to phenyl mole ratios and reducing benzene content in a motor fuel product

One exemplary embodiment can be a process using an aromatic methylating agent. Generally, the process includes reacting an effective amount of the aromatic methylating agent having at least one of an alkane, a cycloalkane, an alkane radical, and a cycloalkane radical with one or more aromatic compounds. As such, at least one of the one or more aromatic compounds may be converted to one or more higher methyl substituted aromatic compounds to provide a product having a greater mole ratio of methyl to phenyl than a feed.

Aromatic aklylating agent and an aromatic production apparatus

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

A catalyst for selective hydrogenation of hydrocarbons is presented. The catalyst selectively hydrogenates acetylenes and diolefins to increase the monoolefins in a product stream. The catalyst includes a layered structure with an inert inner core and an outer layer bonded to the inner core, where the outer layer is a metal oxide and has at least two metals deposited on the outer layer.

Layered sphere catalyst formulations for selective hydrogenation performance

Processes for preparing alkenyl alkanoates using a layered catalyst composition

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Arlington Heights, IL, United States of America

Dean E Rende