Exxonmobil Research and Engineering Company

Exxonmobil Chemical Patents Inc.

Exxonmobil Technology and Engineering Company

Tda Research, Inc.

Exxonmobile Research and Engineering Company

Tda Research, Inc. W

Chuansheng Bai

Jihad Mohammed Dakka

Jean Willem Beeckman

Majosefina Cunningham

Adrienne J Thornburg

Stuart Leon Soled

Wenyih Frank Lai

Stephen John McCarthy

Preeti Kamakoti

Anita S Lee

William G Borghard

Aruna Ramkrishnan

Natalie Ann Fassbender

Sabato Miseo

Anjaneya Sarma Kovvali

Patrick P McCall

Jeannine Elizabeth Elliott

Christine Nicole Elia

Paul Podsiadlo

Prasenjeet Ghosh

William Ernest Lewis

Hans Thomann

Valery Sokolovskii

Hari Nair

David M Lowe

Jason Wu

Joshua I Cutler

Heather A Elsen

Jun Han

Vinh The Nguyen

Stuart S Shih

Daniel Paul Leta

Gary Brice McVicker

Jane C Cheng

Daniel Mark Giaquinta

Neeraj Sangar

Jonathan Martin McConnachie

Alfred Hagemeyer

Michael Salciccioli

Lorenzo C DeCaul

Anthony F Volpe

Michael Charles Kerby

Zhiguo Hou

Robert James Copeland

Hans K T Goris

Edward A Lemon

Nicholas S Rollman

Hyung Suk Woo

El-Mekki El-Malki

Theodore E Datz

Pallassana S Venkataraman

Mohsen N Harandi

Stephen Harold Brown

Paul Joseph Berlowitz

Larry Lee Iaccino

Michel A Daage

Doron Levin

Terry Eugene Helton

Scott Jeffrey Weigel

Lei Zhang

Shifang Luke Luo

Alfred Gerhard Hagemeyer

Thomas R Halbert

David C Dankworth

John Frances Brody

Benjamin S Umansky

Tilman W Beutel

Randolph John Smiley

Sebastian Carmen Reyes

Himanshu Gupta

Arun K Sharma

Robert J Falkiner

Sumathy Raman

Richard Charles Dougherty

Brandon J O'Neill

Juan D Henao

Joseph E Gatt

Girish Srinivas

Jennifer Schaefer Feeley

Xiaoying Bao

Partha Nandi

Jeremy W Bedard

Sophie Liu

Kiara M Benitez

Ali A Kheir

William J Tracy, Iii

Steven Webster Levine

Thomas Francis Degnan, Jr

Jenna L Walp

Peter W Jacobs

William W Lonergan

Emiel De Smit

John Henry Dunsmuir

Jocelyn A Gilcrest

Mark Leland Tiller

Bruce Derites

Robert Allen Bradway

Ronald Suryo

Quddus A Nizami

Todd P Marut

Described herein are novel and inventive dewaxing processes that employ dewaxing catalysts which are co-extrusions of two different zeolites, particularly two different 10MR zeolites or a co-extrusion of a 10MR zeolite and a 12MR zeolite in combination with a hydrogenation component. The hydrogenation component can be a mixture of non-noble metal components or a mixture of noble metal components. This novel and inventive process demonstrated a significant activity boost (as measured by increased cloud point reduction) and/or selectivity boost (as measured by reduced diesel loss) compared to either single zeolite component.

Process and materials for trim dewaxing of distillates

The disclosure generally relates to CCS sorbents, particularly for CO/HO displacement desorption process. The sorbents include an aluminum oxide support that includes alkali metal salts within the support, in the form of pseudo alkali aluminate. The sorbents also include alkali metal salt impregnated on the support. The sorbents demonstrate improved COloadings and better HO/COratios, as well as improved stability. Compositions and methods of making are disclosed.

High performance CO/HO displacement desorption sorbents and methods of making same

Compositions and methods of preparing the compositions are disclosed for sorbents and other surfaces that can adsorb and desorb carbon dioxide. A sorbent or surface can include a metal compound such as an alkali or alkaline earth compound and a support. The sorbent can be prepared by several methods, including an incipient wetness technique. The sorbents have a COadsorption and desorption profile. A sorbent having high levels of a metal compound and adsorbed COis disclosed.

Compositions for carbon dioxide separation using steam regeneration, and method for preparing same

A method of producing bifunctional catalysts by extrusion may include mixing an acid catalyst, a metal catalyst, optionally a binder, and a fluid to produce a dough; extruding the dough to form an extrudate; producing a powder from the extrudate; and calcining the powder to produce an acid/metal bifunctional catalyst. Such acid/metal bifunctional catalysts may be useful in, among other things, converting syngas to dimethyl ether in a single reactor.

Acid/metal bifunctional catalyst produced by extrusion

A method of producing bifunctional catalyst systems that include a carbon-coated metal catalyst may comprise: coating a metal catalyst particle with a carbon-containing small molecule to produce a coated metal catalyst particle; carbonizing the carbon-containing small molecule on the coated metal catalyst particle to produce a carbon-coated metal catalyst particle; and mixing the carbon-coated metal catalyst particle with an acid catalyst particle to produce an acid/metal bifunctional catalyst system. Further, a method of producing bifunctional catalyst systems that include a carbon-coated acid catalyst may be similarly performed by coating a metal catalyst particle with a carbon-containing small molecule to produce a coated metal catalyst particle; carbonizing the carbon-containing small molecule on the coated metal catalyst particle to produce a carbon-coated metal catalyst particle; and mixing the carbon-coated metal catalyst particle with an acid catalyst particle to produce an acid/metal bifunctional catalyst system.

Acid/metal bifunctional catalyst systems produced with carbon coatings

Methods of producing metal catalysts can include mixing two or more metal salts and an aluminum salt in water to produce a metal catalyst precursor solution; mixing the metal catalyst precursor solution and an alkali metal buffer solution to produce a precipitate; ion exchanging the alkali metal in the precipitate for a non-alkali cation to produce a low-alkali metal precipitate comprising 3 wt % or less alkali metal by weight of the precipitate on a dry basis; producing a powder from the low-alkali metal precipitate; and calcining the powder to produce a metal catalyst. Such metal catalysts may be useful in producing bifunctional catalyst systems that are useful in, among other things, converting syngas to dimethyl ether in a single reactor.

Metal catalysts with low-alkali metal content and acid/metal bifunctional catalyst systems thereof

Methods of producing metal catalysts can include mixing two or more metal salts and an aluminum salt in water to produce a metal catalyst precursor solution having a pH of about 2.5 to about 4.0; mixing the metal catalyst precursor solution and a basic solution having a pH of about 10 to about 13 to produce a mixture with a pH of about 6 to about 7 and a precipitate; producing a powder from the precipitate; and calcining the powder to produce a metal catalyst. Such metal catalysts may be useful in producing bifunctional catalyst systems that are useful in, among other things, converting syngas to dimethyl ether in a single reactor.

Metal catalyst synthesis and acid/metal bifunctional catalyst systems thereof

A method of producing a acid/metal bifunctional catalyst may include: mixing an acid catalyst, a metal catalyst, and a fluid to produce a slurry, wherein the acid catalyst is present at 50 wt % or less relative to a total catalyst weight in the slurry; heating the slurry; producing a powder from the slurry; and calcining the powder to produce the acid/metal bifunctional catalyst. Such acid/metal bifunctional catalyst would be useful in the direct conversion of syngas to dimethyl ether as well as other reactions.

Acid/metal bifunctional catalysts produced by slurry methods

The disclosure generally relates to CCS sorbents, particularly for CO/HO displacement desorption process. The sorbent includes an aluminum oxide support and an alkali metal salt impregnated on the support, and a silicon modification of the sorbent to reduce water uptake by the sorbent and make it more hydrophobic. The silicon modification can be an organosilyl moiety added after the initial sorbent is complete, or a silica source added to the aluminum oxide structure, typically via impregnation. The sorbents demonstrate better HO/COratios. Compositions and methods of making are disclosed.

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Disclosed are processes for conversion of a feedstock comprising Caromatic hydrocarbons to lighter aromatic products in which the feedstock and optionally hydrogen are contacted in the presence of the catalyst composition under conversion conditions effective to dealkylate and transalkylate said Caromatic hydrocarbons to produce said lighter aromatic products comprising benzene, toluene and xylene. The catalyst composition comprises a zeolite, a first metal, and a second metal, and is treated with a source of sulfur and/or a source of steam.

Heavy aromatics conversion processes and catalyst compositions used therein

The disclosure generally relates to CCS sorbents, particularly for CO/HO displacement desorption process. The sorbents include an aluminum oxide support that includes two alkali metal salts impregnated on the support. The two alkali metals include a potassium metal salts and a second alkali metal salt which is not potassium. The second metal salt disrupts poisoning effects that degrade sorbent lifetime. The sorbents demonstrate improved COloadings and better HO/COratios, as well as improved stability. Compositions and methods of making are disclosed.

Mixed metal sorbents for CO/HO displacement desorption

Methods are provided for performing selective hydrodesulfurization on a naphtha boiling range stream naphtha boiling range portion of a feed. It has been unexpectedly discovered that hydrodesulfurization with improved octane retention can be performed by using a catalyst that comprises CoMo supported on a catalyst support that includes a zeotype framework. By using a catalyst support including a zeotype framework, an unexpectedly high amount of octane in the naphtha boiling range portion of the hydrodesulfurized effluent is maintained.

Naphtha hydrodesulfurization

Systems and methods are provided for conversion of gas phase reactants including CO and Hto Cproducts using multiple catalysts in a single reactor while reducing or minimizing deactivation of the catalysts. Separate catalysts can be used that correspond to a first catalyst, such as a catalyst for synthesis of methanol from synthesis gas, and a second catalyst, such as a catalyst for conversion of methanol to a desired Cproduct. The separate catalysts can be loaded into the reactor in distinct layers that are separated by spacer layers. The spacer layers can correspond to relatively inert particles, such as silica particles. Optionally, the spacer layer can include an adsorbent, such as boron supported on alumina or boron carbide particles. The adsorbent can be suitable for selective adsorption of the one or more reaction products (such as one or more reaction by-products), to allow for further reduction or minimization of the deactivation of the conversion catalysts.

Layered catalyst loading for synthesis gas conversion

Methods, catalysts, and corresponding catalyst precursors are provided for performing dewaxing of diesel or distillate boiling range fractions. The dewaxing methods, catalysts, and/or catalyst precursors can allow for production of diesel boiling range fuels with improved cold flow properties at desirable yields. The catalysts and/or catalyst precursors can correspond to supported metal catalysts and/or catalyst precursors that include at least one noble metal, such as Pt, at least one Group 8-10 base metal, preferably a non-noble Group 8-10 base metal, such as Ni and/or Co along with a Group 6 metal, such as Mo and/or W as supported metals along. The support can include a zeolitic framework structure. The catalyst precursors can be formed, for example, by impregnating a support including a zeolitic framework structure with impregnation solution(s) that also includes a dispersion agent.

Noble metal and base metal dewaxing catalyst

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Phillipsburg, NJ, United States of America

Chuansheng Bai