Patents by Inventor Andras G. T. G. Kortbeek
Andras G. T. G. Kortbeek has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5073661Abstract: The invention relates to a process for the preparation of hydrocarbons, wherein a feed comprising methanol is contacted at reaction conditions with a catalyst comprising:(i) a porous carrier material selected from the group comprising silica, alumina, and mixtures thereof;(ii) cobalt as a metal component deposited on the porous carrier material; and(iii) a promoter selected from the group comprising zirconium, titanium, chromium, ruthenium, iron, magnesium, zinc, thorium and uranium.Type: GrantFiled: December 19, 1990Date of Patent: December 17, 1991Assignee: Shell Oil CompanyInventors: Bob Scheffer, Andras G. T. G. Kortbeek
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Patent number: 5023389Abstract: The invention relates to a process for preparing normally liquid hydrocarbon products such as middle distillates and methyl-t-butylether from a hydrocarbon feed containing linear and branched olefins (e.g. propane and butenes in light ends) comprising at least the following steps:i) selectively converting branched olefins in the feed in the presence of a catalyst into a normally liquid hydrocarbonaceous product (e.g. MTBE);ii) separating linear olefins from product obtained in step (i), andiii) catalytically oligomerizing linear olefins obtained from step (ii) into liquid hydrocarbons such as middle distillates.Type: GrantFiled: February 10, 1989Date of Patent: June 11, 1991Assignee: Shell Oil CompanyInventors: Pierre Grandvallet, Andras G. T. G. Kortbeek, Johannes P. Van Den Berg, Karl-Heinz Robschlager
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Patent number: 4992479Abstract: Process for the preparation of methanol by contacting a gaseous mixture comprising carbon monoxide and hydrogen with a novel catalytic system formed by combining (a) a copper salt (b) an alcohol, and (c) a complex hydride, and allowing the combined components to react.Type: GrantFiled: October 26, 1989Date of Patent: February 12, 1991Assignee: Shell Oil CompanyInventors: Arjan Van Dijk, Eit Drent, Andras G. T. G. Kortbeek
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Patent number: 4835335Abstract: A two-stage catalytic conversion process for converting an olefins-containing feed is disclosed which comprises contacting the feed in a first stage under substantially non-oligomerizing conditions with a catalyst comprising at least one metal (X) selected from the group consisting of metals from Groups 1a, 1b, 2a, 2b, 4b, 5b, 6b and 8 of the Periodic Table of the Elements and contacting the effluent from the first stage in the second stage under olefin oligomerization conditions at a temperature which is at least 50.degree. C. above the operating temperature of the first stage with a catalyst comprising at least one metal (Z) selected from the group consisting of metals from Groups 1b, 2a, 2b, 4b, 5b, 6b, and 8 on a mordenite-type of crystalline trivalent metal (Q) silicate.Type: GrantFiled: March 2, 1988Date of Patent: May 30, 1989Assignee: Shell Oil CompanyInventors: Johannes P. van den Berg, Pierre Grandvallet, Andras G. T. G. Kortbeek
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Patent number: 4440875Abstract: Process for the production of hydrocarbons from synthesis gas in which the gas is passed at elevated pressure and temperature over a catalyst consisting of zirconium oxide promoted with at least one alkali metal compound. Preferably the zirconium oxide has a specific surface area in the range from 20 to 500 m.sup.2 /g and the alkali metal compound is potassium oxide. A major part of the product consists of butene.Type: GrantFiled: August 16, 1982Date of Patent: April 3, 1984Assignee: Shell Oil CompanyInventors: Andras G. T. G. Kortbeek, Guy Barre, Jean M. Durel
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Patent number: 4410637Abstract: A process for the preparation of a hydrocarbon mixture from a mixture of carbon monoxide and hydrogen, using a catalyst combination containing one or more metal components with catalytic activity for the conversion of an H.sub.2 /CO mixture into acyclic hydrocarbons, e.g., Ru, Co, Fe, Ni and Cr, and as carrier a laminar compound capable of absorbing metal ions or metal salts by intercalation. Preferably the laminar compound is a laminar crystalline silicate, e.g., magadiite.Type: GrantFiled: October 23, 1981Date of Patent: October 18, 1983Assignee: Shell Oil CompanyInventors: Andras G. T. G. Kortbeek, Emmanuel E. A. Neel, Guy Barre
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Patent number: 4306047Abstract: A TiCl.sub.3 olefin polymerization catalyst component is prepared by reducing TiCl.sub.4 with an aluminum trihydrocarbyl compound in a molar ratio of Ti:Al of 2.7:1 to 4.0:1 in the presence of diisoamyl ether and a hydrocarbon solvent by gradually adding TiCl.sub.4 to the aluminum trihydrocarbyl compound and at least a substantial proportion of the diisoamyl ether at a temperature of from 15.degree. to 50.degree. C. during a period of from 0.7 to 2.5 hours to produce a precipitate of TiCl.sub.3, and thereafter converting the precipitate into active TiCl.sub.3 by heating at a temperature of from 80.degree. to 110.degree. C. during at least 30 minutes. The active TiCl.sub.3, when combined with a conventional organoaluminum cocatalyst, provides a stereospecific catalyst for the polymerization of alpha monoolefins having high activity, good morphology and good stereospecificity.Type: GrantFiled: October 17, 1980Date of Patent: December 15, 1981Assignee: Shell Oil CompanyInventors: Andras G. T. G. Kortbeek, Wilhelmina J. M. van der Linden-Lemmers
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Patent number: 4269732Abstract: A TiCl.sub.3 olefin polymerization catalyst component is prepared by reducing TiCl.sub.4 with an aluminum trihydrocarbyl compound in a molar ratio of Ti:Al of 2.7:1 to 4.0:1 in the presence of diisoamyl ether and a hydrocarbon solvent by gradually adding TiCl.sub.4 to the aluminum trihydrocarbyl compound and at least a substantial proportion of the diisoamyl ether at a temperature of from 15.degree. to 50.degree. C. during a period of from 0.7 to 2.5 hours to produce a precipitate of TiCl.sub.3, and thereafter converting the precipitate into active TiCl.sub.3 by heating at a temperature of from 80.degree. to 110.degree. C. during at least 30 minutes. The active TiCl.sub.3, when combined with a conventional organoaluminum cocatalyst, provides a stereospecific catalyst for the polymerization of alpha monoolefins having high activity, good morphology and good stereospecificity.Type: GrantFiled: July 17, 1979Date of Patent: May 26, 1981Assignee: Shell Oil CompanyInventors: Andras G. T. G. Kortbeek, Wilhelmina J. M. van der Linden-Lemmers
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Patent number: 4259466Abstract: A titanium trichloride-catalyzed process for stereospecific polymerization of alpha-olefins, particularly propylene, to produce polymers of relatively high bulk density comprises employing as the TiCl.sub.3 catalyst component, used with an aluminum alkyl cocatalyst, a 0.1 to 30 millimicron fraction of a TiCl.sub.3 composition produced by(a) reacting TiCl.sub.4 with a complexing agent in a molar ratio of from 1:0.3 to 1:2;(b) reacting an organo-aluminum compound with a complexing agent in a molar ratio of at most 1:0.25;(c) reducing the complexed TiCl.sub.4 with the complexed organo-aluminum compound over a period of less than one hour at a temperature within the range 60.degree. to 110.degree. C. to produce TiCl.sub.3 particles having an average particle size of from 50 to 500 .mu.m;(d) subjecting the TiCl.sub.3 particles to a treatment to reduce the average particle size thereof to less than 50 .mu.m, and(e) classifying the TiCl.sub.Type: GrantFiled: November 8, 1979Date of Patent: March 31, 1981Assignee: Shell Oil CompanyInventors: Andras G. T. G. Kortbeek, Adrianus A. Van Der Nat
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Patent number: 4192774Abstract: A process for the preparation of an active TiCl.sub.3 catalyst which comprises:(a) reacting TiCl.sub.4 with a complexing agent in a molar ratio of from 1:0.3 to 1:2;(b) reacting an organo-aluminum compound with a complexing agent in a molar ratio of at most 1:0.25;(c) reducing the complexed TiCl.sub.4 with the complexed organo-aluminum compound over a period of less than one hour at a temperature within the range 60.degree. to 110.degree. C. to produce TiCl.sub.3 particles having an average particle size of from 50 to 500 .mu.m;(d) subjecting the TiCl.sub.3 particles to a treatment to reduce the average particle size thereof to less than 50 .mu.m, and(e) classifying the TiCl.sub.3 particles to separate a fraction having an average particle size of from 0.1 to 30 .mu.m.Type: GrantFiled: January 18, 1979Date of Patent: March 11, 1980Assignee: Shell Oil CompanyInventors: Andras G. T. G. Kortbeek, Adrianus A. van der Nat