Lummus Technology Inc.

Abb Lummus Global Inc.

Exxon Research and Engineering Company

Other

Catalytic Distillation Technologies

Abb Lummus Crest, Inc.

Chuen Yuan Yeh

Philip Jay Angevine

Zhiping Shan

Thomas Maschmeyer

Anne Mae Gaffney

Ruozhi Song

Lawrence L Murrell

Rudolf A Overbeek

Johannes Hendrik Koegler

Charles G Savini

Jacobus Cornelis Jansen

Jacobus Cornelius Jansen

Stephen Craig Arnold

Frits M Dautzenberg

Yun-Feng Chang

Tadeusz W Langner

Robert E Trubac

Bowden George Maingay

Leonardo Marchese

Heloise De Oliveira Pastore

Lothar Schuh

Nelleke Van Der Puil

Verena R Schmidt

Mohamed S Hamdy

Yun-feng Chang

Peter Wilhelm Gerhard Waller

Ruma Ghosh

Jinsuo Xu

Lawrence John Karas

Joakim A Carlborg

George D Suciu

William D Diana

Jingguang Chen

Xingtao Gao

Anatoly Alexander

Jamin Chen

Martin Kraus

Cemal Ercan

Herbert E Barner

Chiung Yuan Huang

Pal Rylandshom

Nelleke Vander Puil

Marshall J Margolis

Chuen M Yeh

Ming Z Chang

Peter Wilhelm

Xintao Gao

Emmanuel Van Broekhoven

Processes are provided for the production of butadiene from Ccontaining feed stocks that contain isobutene and/or isobutane in addition to n-butene(s) and/or n-butane. The processes of the present invention generally comprise feeding the feed stock to a combination butenes isomerization reaction and distillation tower for conversion of 1-butene to 2-butenes and separation from isobutene and isobutane, followed by an oxydehydrogenation unit to convert n-butenes to butadiene. The processes may also include additional isomerization and/or dehydrogenation steps for the tower overhead and bottoms streams to create additional isobutene and/or n-butenes for valued/uses, which may include additional production of butadiene. The feed to the system may comprise any mixture or separate feeding of Colefins and Cparaffins, at least one of which contains isobutene and/or isobutane.

Process for the production of butadiene

Processes for using a combination of carbon dioxide and oxygen in the dehydrogenation of hydrocarbons are provided. A hydrocarbon feedstock, carbon dioxide and oxygen are fed to an oxidative dehydrogenation reactor system containing one or more catalysts that promote dehydrogenation of the hydrocarbon feedstock to produce a dehydrogenated hydrocarbon product. The processes of the present invention may be used, for example, to produce styrene monomer by dehydrogenation of ethylbenzene using carbon dioxide and oxygen as oxidants.

Combined carbon dioxide and oxygen process for ethylbenzene dehydrogenation to styrene

A process for the oxidative dehydrogenation of ethane is disclosed. The process may include: contacting an ethane feed and an oxygen-containing gas in the presence of an oxidative dehydrogenation catalyst in an oxidative dehydrogenation reaction zone under conditions to oxidatively dehydrogenate at least a portion of the ethane to produce a product stream comprising ethylene, carbon oxides, water, and unreacted oxygen and ethane, wherein an oxygen concentration in the product stream is at least 0.1 mol %; contacting the product stream with an oxygen elimination catalyst in an oxygen elimination reaction zone to combust at least a portion of the oxygen; recovering from the oxygen elimination reaction zone an effluent having a reduced oxygen content; separating water from the effluent; separating carbon oxides and any non-condensable gas(es) from the ethylene and the unreacted ethane; and separating the ethylene from the unreacted ethane.

Process for producing ethylene via oxidative dehydrogenation (ODH) of ethane

A catalyst useful for the alkylation or transalkylation of aromatic compounds is disclosed. The catalyst is an acid-treated zeolitic catalyst produced by a process including contacting an acidic zeolitic catalyst comprising surface non-framework aluminum and framework aluminum with an organic dibasic acid at a catalyst to acid weight ratio in the range from about 2:1 to about 20:1 and at a temperature in the range from about 50&#xb0; C. to about 100&#xb0; C. to selectively remove at least a portion of the surface non-framework aluminum. The resulting catalyst may have a measured first-order rate constant, k, for the alkylation of benzene with propylene to form cumene, of at least 2.0 cm/s g.

Catalysts useful for the alkylation of aromatic hydrocarbons

Processes are provided for the production of butadiene from Ccontaining feed stocks that contain isobutene and/or isobutane in addition to n-butene(s) and/or n-butane. The processes of the present invention generally comprise feeding the feed stock to a combination butenes isomerization reaction and distillation tower for conversion of 1-butene to 2-butenes and separation from isobutene and isobutane, followed by an oxydehydrogenation unit to convert n-butenes to butadiene. The processes may also include additional isomerization and/or dehydrogenation steps for the tower overhead and bottoms streams to create additional isobutene and/or n-butenes for valued uses, which may include additional production of butadiene. The feed to the system may comprise any mixture or separate feeding of Colefins and Cparaffins, at least one of which contains isobutene and/or isobutane.

A catalyst for the oxidative dehydrogenation of a paraffin to form an olefin, the catalyst having a general formula MoVXYOwherein: X=at least one of Nb and Ta; Y=at least one of Te, Sb, Ga, Pd, W, Bi and Al; a=1.0; b=0.05 to 1.0; c=0.001 to 1.0; d=0.001 to 1.0; and n is determined by the oxidation states of the other elements. The catalyst may have a selectivity to the olefin of at least 90 mole % at a paraffin conversion of at least 65%.

Catalysts for the conversion of paraffins to olefins and use thereof

A process for forming a catalyst useful for the production of an olefin from a hydrocarbon is disclosed. The process may include: admixing at least one of elemental metals and compounds to form a multi-metal composition comprising Mo, V, Nb, Te and at least one of Ni and Sb; adjusting the pH of the multi-metal composition by adding nitric acid; drying the acidified multi-metal composition; calcining the dried multi-metal composition; and grinding the calcined multi-metal composition. The ground multi-metal composition may then be sized or shaped to form a mixed metal oxide catalyst. Alternatively, the ground multi-metal composition may be treated with an acid, optionally annealed, and sized or shaped to form a mixed metal oxide catalyst.

Process for making catalysts useful for the conversion of paraffins to olefins

A method for making a mesoporous or combined mesoporous/microporous inorganic oxide includes reacting a source of inorganic oxide with a complexing agent at a complexation temperature to provide a complex; decomposing the complex to provide a porous material precursor having an inorganic oxide framework containing at least some organic pore-forming agent; and removing the organic pore forming agent from the inorganic oxide framework by solvent extraction and/or calcination.

Method for making mesoporous or combined mesoporous and microporous inorganic oxides

A process for treating organic compounds includes providing a composition which includes a substantially mesoporous structure of refractory oxide containing at least 97% by volume of pores having a pore size ranging from about 15 &#x212b; to about 30 &#x212b; and having a micropore volume of at least about 0.01 cc/g, wherein the mesoporous structure has incorporated therewith at least about 0.02% by weight of at least one catalytically and/or chemically active heteroatom selected from the group consisting of Al, Ti, V, Cr, Zn, Fe, Sn, Mo, Ga, Ni, Co, In, Zr, Mn, Cu, Mg, Pd, Pt and W, and the catalyst has an X-ray diffraction pattern with one peak at 0.3&#xb0; to about 3.5&#xb0; at 2 theta (&#x3b8;). The catalyst is contacted with an organic feed under reaction conditions wherein the treating process is selected from alkylation, acylation, oligomerization, selective oxidation, hydrotreating, isomerization, demetalation, catalytic dewaxing, hydroxylation, hydrogenation, ammoximation, isomerization, dehydrogenation, cracking and adsorption.

Mesoporous material with active metals

A catalytic material includes microporous zeolites supported on a mesoporous inorganic oxide support. The microporous zeolite can include zeolite Beta, zeolite Y (including 'ultra stable Y'&#x2014;USY), mordenite, Zeolite L, ZSM-5, ZSM-11, ZSM-12, ZSM-20, Theta-1, ZSM-23, ZSM-34, ZSM-35, ZSM-48, SSZ-32, PSH-3, MCM-22, MCM-49, MCM-56, ITQ-1, ITQ-2, ITQ-4, ITQ-21, SAPO-5, SAPO-11, SAPO-37, Breck-6, ALPO-5, etc. The mesoporous inorganic oxide can be e.g., silica or silicate. The catalytic material can be further modified by introducing some metals e.g. aluminum, titanium, molybdenum, nickel, cobalt, iron, tungsten, palladium and platinum. It can be used as catalysts for acylation, alkylation, dimerization, oligomerization, polymerization, hydrogenation, dehydrogenation, aromatization, isomerization, hydrotreating, catalytic cracking and hydrocracking reactions.

Zeolite composite, method for making and catalytic application thereof

A method for making a zeolite includes providing a reaction mixture containing mixed inorganic oxides and an organic templating agent, heating the reaction mixture, removing the templating agent at a temperature of no greater than 550&#xb0; C. and under conditions such that the resulting zeolite is has an AAI of at least 1.2. The zeolite is preferably zeolite beta, TEA-mordenite or TEA-ZSM-12.

Zeolites and molecular sieves and the use thereof

Mesoporous aluminum oxides with high surface areas have been synthesized using inexpensive, small organic templating agents instead of surfactants. Optionally, some of the aluminum can be framework-substituted by one or more other elements. The material has high thermal stability and possesses a three-dimensionally randomly connected mesopore network with continuously tunable pore sizes. This material can be used as catalysts for dehydration, hydrotreating, hydrogenation, catalytic reforming, steam reforming, amination, Fischer-Tropsch synthesis and Diels-Alder synthesis, etc.

Mesoporous aluminum oxide, preparation and use thereof

An aromatic alkylation process includes contacting an aromatic compound with an alkylating agent in the presence of a zeolite beta in a reaction zone under alkylation reaction conditions, wherein said zeolite beta is a high performance zeolite beta possessing a ratio of strong acid sites/weak acid sites greater than 1. The high performance zeolite beta is superior to conventional zeolite beta in the aromatics alkylation reaction, such as benzene alkylation with ethylene for ethylbenzene production, and benzene alkylation with propylene for cumene production.

Process for benzene alkylation and transalkylation of polyalkylated aromatics over improved zeolite beta catalyst

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Edison, NJ, United States of America

Chuen Yuan Yeh