Texaco Inc.

Texaco Chemical Inc.

Texaco Chemical Company

Huntsman Specialty Chemicals Corporation

Abb Lummus Global Inc.

Other

Pei-Shing E Dai

David E Sherwood, Jr

John F Knifton

Randall Hughes Petty

Bobby R Martin

Laurence D Neff

Robert J Taylor, Jr

Joseph A Durkin

Charles N Campbell, Ii

Roy E Pratt

Gerald V Nelson

Burton H Bartley

Govanon Nongbri

Chih-Hao Mark Tsang

Kyle Lee Preston

Rei-Yu Judy Hwan

Edward T Marquis

Edward H Holst

Charles N Campbell

Michael Cuscurida

Ernest L Yeakey

Terry L Renken

Yu-Hwa E Sheu

Mark Gilmore White

David Alan Bruce

Charles N Campbell Ii

Richard Vance Lawrence

Joseph Aaron Bertrand

David Edward Sherwood, Jr

A catalyst characterized by its ability to hydrotreat a charge hydrocarbon feed containing components boiling above 1000&deg; F., and sediment-formers, sulfur, metals, asphaltenes, carbon residue, and nitrogen is prepared by mulling a porous alumina support with a salt of a Group VIII metal oxide and with a salt of a Group VI-B metal oxide in the presence of an acid to provide a mixture, by extruding the mixture to form an extrudate, by drying the extrudate and by subjecting the dried extrudate to hydrothermal calcination to provide the catalyst.

Method of preparing a catalyst for use in the hydrotreating of high boiling hydrocarbon feedstocks

Disclosed is a novel binary sieve catalyst useful for olefin upgrading and fluid catalytic cracking which comprises

FCC process using binary molecular sieves having a core and shell of

A process for hydrotreating a hydrocarbon feed containing components boiling above 1000.degree. F. and sulfur, metals and carbon residue utilizing a heterogeneous catalyst having a specified pore size distribution, median pore diameter by surface area and pore mode by volume, to give a product containing a decreased content of components boiling above 1000.degree. F. and decreased sulfur, metals and carbon residue is disclosed. The process includes contacting the hydrocarbon feed with hydrogen in the presence of the catalyst at isothermal hydroconversion conditions. The catalyst includes an porous alumina support containing less than or equal to 2.5 wt % silica on the finished catalyst basis, and bearing 2.2 to 6 wt % of a Group VIII metal oxide, 7 to 24 wt % of a Group VIB metal oxide and preferably less than 0.2 wt % of a phosphorous oxide. The catalyst may be characterized as having a Total Surface Area of 215 to 245 m.sup.2 /g, a Total Pore Volume of 0.82 to 0.98 cc/g, a Median Pore Diameter by Surface Area of 91 to 104 .ANG., and a Pore Diameter Distribution in which 22.0 to 33.0% of the total Pore Volume is present as macropores of a diameter greater than 250 .ANG., 67.0 to 78.0% of the Total Pore Volume is present as micropores of a diameter less that 250 .ANG.. Greater than or equal to 65% of the micropore volume is present as micropores having a diameter +/-25 .ANG. about a Pore Mode by volume of 86-99 .ANG.. Less than 0.08 cc/g of the micropore volume is present in micropores with diameters less than 80 .ANG..

Hydroconversion process employing catalyst with specified pore size

Disclosed is a novel binary sieve catalyst useful for olefin upgrading and fluid catalytic cracking which comprises a crystalline zeolite metallosilicate core and a shell selected from an aluminum phosphate molecular sieve (AlPO.sub.4), a silicon-substituted aluminophosphate (SAPO), a metal aluminophosphate (MeAPO), and a crystalline metal aluminophosphate (MeAPSO) and is generally synthesized by a method comprising:

Binary molecular sieves having a core and shell of different structures

Methyl tertiary butyl ether is prepared from tertiary butyl alcohol and methanol in a plural stage process by (a) reacting tertiary butyl alcohol with methanol in a primary MTBE reaction zone containing a cationic ion-exchange resin catalyst to form a primary reaction product, (b) fractionating the primary reaction product in a primary distillation zone to provide a first lighter, lower boiling distillation fraction comprising isobutylene, methanol and methyl tertiary butyl ether and a first heavier, higher boiling distillation fraction comprising methanol, tertiary butyl alcohol and water, c) contacting the first heavier distillation fraction in a second stage reactor containing a second stage acidic, fluoride-treated Y-zeolite having a silica:alumina ratio of 100:1 to 10:1 and a unit cell size of from 24.20 to 24.45 .ANG. or a fluoride-treated silicoaluminophosphate (SAPO) molecular sieve having a pore size of from 5 .ANG. to 8 .ANG., under conversion conditions including a temperature of from 20.degree. to 300.degree. C. and a pressure of from 0 to 1000 psig to form a second stage reaction product rich in isobutylene and also containing methyl tertiary butyl ether; and (d) converting the isobutylene to additional methyl tertiary butyl ether.

Two-stage etherification of tertiary butyl alcohol using second stage

A tertiary butyl alcohol charge stock contaminated with from about 0.5 to about 2 wt. % of corrosive oxygen-containing impurities, including peroxides and formates, is passed through an oxygenates decomposition reactor containing a bed of a basic zeolite catalyst to decompose the peroxides and oxygen-containing impurities, including peroxides and formates, and to dehydrate a portion of the tertiary butyl alcohol to form isobutylene and water to form a substantially less-corrosive tertiary butyl alcohol feedstock that is substantially free from oxygen-containing impurities, including formates that is suitable for reaction with methanol in a methyl tertiary butyl ether etherification reactor to form a methyl tertiary butyl ether etherification reaction product from which methyl tertiary butyl ether can be recovered.

Method for the purification of tertiary butyl alcohol for use in the

Disclosed is a novel process for the synthesis of a metal-containing aluminophosphate having a layered structure and novel optically active metal-containing aluminophosphates useful as enantio-selective catalysts, which comprises:

Synthesis of metal--containing aluminophosphates with layered structure

Methyl tertiary butyl ether is prepared from TBA contaminated with oxygen-containing impurities by decomposing the impurities to gaseous products, by charging the thus-treated tertiary butyl alcohol and methanol to an etherification reactor to form an etherification reaction product, by distilling the etherification reaction product to provide a lower boiling fraction containing isobutylene, methanol and methyl tertiary butyl ether by charging the lower boiling fraction to a finishing reactor to react the isobutylene and methanol contained therein to from additional MTBE and by recovering MTBE from the etherification reaction product and the isobutylene conversion product.

Method for the manufacture of methyl tertiary butyl ether from tertiary

Disclosed is a method for decomposing formate esters, free acids and peroxides in a tertiary butyl alcohol stream to produce noncondensible gas products which comprises reacting said tertiary butyl alcohol stream or a methyl tertiary butyl alcohol stream containing formate esters over a catalyst comprising a non-noble Group VIII metal and a metal of Group IB on a support comprising an inert composition mixed with a hydrotalcite-like composition.

Catalytic decomposition of formate impurities in tertiary butyl alcohol

Disclosed is a method for producing alkyl tertiary alkyl ethers which comprises reacting t-butanol with an alkanol in the presence of a catalyst which exhibits extended life comprising .beta.-zeolite modified with one or more metals selected from the group consisting of Group IA and Group IIIB of the Periodic Table and continuously contacting said alkanol and t-butanol in a molar amount from about 10:1 to 1:10 over said zeolite catalyst at a temperature of about 20.degree. C. to about 250.degree. C. and a pressure of about atmospheric to about 1000 psig.

One-step synthesis of methyl t-butyl ether from t-butanol using

Disclosed is a one-step process intended as an alternative to catalytic reforming which upgrades naphthas by simultaneously saturating aromatics, isomerizing paraffins and selectively cracking heavier hydrocarbons which comprises contacting heavy naphtha feedstock in a reforming zone with a catalyst comprising a solid acid, optionally with a binder of Group III and/or IV of the Periodic Table, having a metal from Group VIII of the Periodic Table deposited thereon, wherein the reaction conditions are much milder than those typically used in catalytic reforming.

Single-step process to upgrade naphthas to an improved gasoline blending

Disclosed is a one-step method for synthesis of methyl tertiary butyl ether, diisopropyl ether and isopropyl ether from crude streams containing acetone, methanol and t-butyl alcohol which comprises reacting an acetone-rich feed over a bifunctional catalyst comprising 5-45% by weight of a catalyst consisting essentially of a hydrogenation catalyst selected from the group consisting of one or more metals selected from the group consisting of IB, VIB or VIII of the Periodic Table and a heteropoly acid on a 55%-95% of the total weight of the catalyst of a support comprising a compound selected from the group consisting of:

Isopropyl alcohol and diispropyl ether production from crude by-product

Disclosed is a catalyst comprising a porous alumina support bearing 2.5-6 wt % of a non-cobalt Group VIII metal oxide, 14.5-25 wt % of a Group VI-B metal oxide, and 0-4 wt % of a phosphorus oxide, said catalyst having a Total Surface Area of 240-320 M.sup.2 /g, Pore Volume of 0.65-0.90 cc/g, and a Pore Diameter Distribution whereby 50-62.8% of the Total Pore Volume is present as micropores of diameter 55-115 .ANG., 27.5-37% of the Total Pore Volume is present in large pores of a diameter greater than 160 .ANG. and 20-30.5% of the Total Pore Volume is present as macropores of diameter greater than 250 .ANG..

A two-step integrated process for the generation of diisopropyl ether from a crude by-product acetone stream which comprises:

Integrated process for the production of isopropyl alcohol and

Disclosed is a fluid catalytic cracking process for cracking gas oils and naphtha which provides improved selectivity for C.sub.3 -C.sub.5 olefins employing a catalyst comprising a novel zeolite characterized by a large number of secondary pores, a substantially decreased Lattice Constant of below about 24.19 .ANG., and a substantially decreased Acid Site Density, attained by hydrothermal and acid-treating of an ultrastable Y-zeolite.

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Port Arthur, TX, United States of America

Pei-Shing E Dai