Patents by Inventor Albert B. Schwartz
Albert B. Schwartz 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: 5034362Abstract: There are provided aromatic conversion reactions for preparation of dialkylbenzenes, such as xylene and ethyltoluene, of enhanced para isomer content with a zeolitic catalyst composition of improved shape selectivity. The catalysts comprise certain zeolites which have been calcined at a high temperature of at least 649.degree. C. (i.e., 1200.degree. F.). These zeolites have a silica/alumina ratio of at least about 12 and a constraint index within the approximate range of 1 to 12. Examples of such zeolites include ZSM-5 and ZSM-11.Type: GrantFiled: August 18, 1989Date of Patent: July 23, 1991Assignee: Mobil Oil CorporationInventors: Pochen Chu, Francis G. Dwyer, Albert B. Schwartz
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Patent number: 4933069Abstract: A process for increasing the volume of feed throughput to the FCC by decreasing coke make under catalytic cracking conditions including a temperature of 950.degree. F. to about 1150.degree. F., a catalyst to feed ratio of 3:1 to 10:1 and a catalyst contact time of from about 1 to about 20 seconds in the presence of catalyst comprising framework silicon enriched ZSM-20.Type: GrantFiled: September 29, 1988Date of Patent: June 12, 1990Assignee: Mobil Oil CorporationInventors: Albin Huss, Jr., Albert B. Schwartz
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Patent number: 4899007Abstract: There are provided aromatic conversion reactions for preparation of dialkyl benzenes, such as xylene and ethyltoluene, of enhanced para isomer content with a zeolitic catalyst composition of improved shape selectivity. The catalysts comprise certain zeolites which have been calcined at a high temperature of at least 649.degree. C. (i.e., 1200.degree. F.). These zeolites have a silica/alumina ratio of at least about 12 and a constraint index within the approximate range of 1 to 12. Examples of such zeolites include ZSM-5 and ZSM-11.Type: GrantFiled: December 10, 1984Date of Patent: February 6, 1990Assignee: Mobil Oil CorporationInventors: Pochen Chu, Francis G. Dwyer, Albert B. Schwartz
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Patent number: 4868146Abstract: A surface-inactive shape selective metallosilicate catalyst, useful for the conversion of lower molecular weight olefins to liquid hydrocarbons such as gasoline, distillate, and high viscosity lube oils, is prepared by forming a silica shell on a medium pore metallosilicate core by crystallizing silica in the presence of fluoride ion onto the surface of the core.A novel catalyst composition is provided comprising an inner core portion and an outer portion disposed as a porous shell around the inner portion, wherein the inner portion consists essentially of metallosilicate zeolite having a medium pore structure, such as ZSM-5 or ZSM-23, and the outer portion comprising a fluoride-containing crystalline shell consisting essentially of silica substantially free of acid sites and having substantially the same crystalline structure as the inner core portion.Type: GrantFiled: August 25, 1988Date of Patent: September 19, 1989Assignee: Mobil Oil CorporationInventors: Pochen Chu, Albert B. Schwartz
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Patent number: 4818509Abstract: A continuous process is described for manufacturing a wide variety of zeolites having selected crystal sizes and other desired characteristics. Selected raw materials are fed to a precursor tank of relatively large capacity, wherein the resultant zeolite precursor slurry is held at temperatures of up to 180.degree. F. for 4-16 hours, with high shear agitation, as an induction period. The slurry is sent to a plurality of crystallization tanks before it possesses a total solids content exceeding 10% by weight and a crystalline content exceeding 15% by weight of the total solids content. The crystallization tanks are preferably operated in two stages. The first crystallizing stage is held at a temperature of 180.degree.-250.degree. F. for 2-72 hours. The second crystallizing stage is held at a temperature greater than 250.degree. F. for 2-16 hours.Type: GrantFiled: October 21, 1986Date of Patent: April 4, 1989Assignee: Mobil Oil CorporationInventors: Francis G. Dwyer, Albert B. Schwartz
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Patent number: 4788374Abstract: A surface-inactive shape selective metallosilicate catalyst, useful for the conversion of lower molecular weight olefins to liquid hydrocarbons such as gasoline, distillate, and high viscosity lube oils, is prepared by a process comprising forming a silica shell on a metallosilicate core by crystallizing silica in the presence of fluoride ion onto the surface of the core.Type: GrantFiled: December 23, 1987Date of Patent: November 29, 1988Assignee: Mobil Oil CorporationInventors: Pochen Chu, William E. Garwood, Albert B. Schwartz
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Patent number: 4754096Abstract: A process for the production of lubricant oil range hydrocarbon having increased viscosity index by oligomerization of lower olefins over medium pore shape selective acid zeolite catalyst. The preferred oligomerization process is conducted using 50 ppm to 5 weight percent of water vapor as cofeed, based on olefin and acid ZSM-5 zeolite.Type: GrantFiled: July 13, 1987Date of Patent: June 28, 1988Assignee: Mobil Oil CorporationInventors: Clarence D. Chang, John D. Dixon, Albert B. Schwartz, David S. Shihabi
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Patent number: 4628040Abstract: Uniform droplets of a bead-forming liquid are produced by positioning the end of a capillary tube in the throat of a venturi. An immiscible fluid flowing through the venturi detaches the droplets from the end of the capillary tube to produce uniform, spherical droplets which harden into spheroidal beads which have a uniform size.Type: GrantFiled: September 17, 1985Date of Patent: December 9, 1986Assignee: Mobil Oil CorporationInventors: Gary J. Green, Albert B. Schwartz
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Patent number: 4552648Abstract: A process for catalytically cracking a hydrocarbon feed in a reaction zone under catalytic cracking conditions in the absence of added hydrogen with a catalyst comprising a conventional cracking catalyst. The improvement comprises adding to the conventional cracking catalyst a thermally treated zeolite having a mole ratio of SiO.sub.2 :Al.sub.2 O.sub.3 of about 10:1 to 100:1 and a constraint index of about 1 to 12. Thermal treatment reduces the additive zeolite's alpha activity to about 1 to 10 prior to use.Type: GrantFiled: February 8, 1984Date of Patent: November 12, 1985Assignee: Mobil Oil CorporationInventors: Edward J. Rosinski, Albert B. Schwartz, Francis G. Dwyer
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Patent number: 4521298Abstract: A process for increasing gasoline octane number and/or total gasoline yield in catalytic cracking units by the addition of a very small amount of finely divided shape selective additive promoter, which additive promoter is not intimately combined with a substantial amount of another solid prior to contact with the cracking catalyst. The additive promoter is a zeolite characterized by a silica to alumina mole ratio greater than about 500 and a constraint index within the approximate range of 1 to 12.Type: GrantFiled: December 16, 1981Date of Patent: June 4, 1985Assignee: Mobil Oil CorporationInventors: Edward J. Rosinski, Albert B. Schwartz
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Patent number: 4517399Abstract: An improved process for the production of high viscosity lubricating oils obtained by reacting olefins over ZSM-5 type zeolites at elevated temperatures and pressures in order to obtain a liquid product and thereafter recovering a lube oil fraction from said liquid product is disclosed. The improvement resides in the use of large crystal ZSM-5 which has been found to enhance the viscosity index of lubes produced from olefins.Type: GrantFiled: August 9, 1984Date of Patent: May 14, 1985Assignee: Mobil Oil CorporationInventors: Arthur W. Chester, William E. Garwood, Albert B. Schwartz
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Patent number: 4473658Abstract: An improved moving bed continuous catalytic cracking process for cracking hydrocarbon feedstocks, such as gas oil, in the absence of added hydrogen, which includes the use of a minute amount of dispersed platinum supported directly on a cracking catalyst. The trace of platinum induces a substantial increase in the heat efficiency with which coke on catalyst is converted to CO.sub.2 in the regenerator section with minimal or no detriment to the cracking reaction.Type: GrantFiled: August 17, 1983Date of Patent: September 25, 1984Assignee: Mobil Oil CorporationInventor: Albert B. Schwartz
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Patent number: 4452958Abstract: There is provided the polymerization of 1-olefins such as ethylene with zeolite supported, chromium catalyst compositions. Chromium ions are ion exchanged with zeolites to produce such catalysts.Type: GrantFiled: May 23, 1983Date of Patent: June 5, 1984Assignee: Mobil Oil CorporationInventors: Arthur W. Chester, Murray: James G., Albert B. Schwartz
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Patent number: 4354963Abstract: A single particle catalyst composition prepared by forming a homogeneous mixture containing iron, a hydrogel matrix and a crystalline acidic aluminosilicate zeolite having a silica-to-alumina ratio of at least 12, a pore size greater than about 5 angstrom units, and a contraint index of about 1 to 12.Type: GrantFiled: April 24, 1981Date of Patent: October 19, 1982Assignee: Mobil Oil CorporationInventors: Stephen A. Butter, Arthur W. Chester, Albert B. Schwartz
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Patent number: 4350614Abstract: Non-hyrogenative endothermic catalytic cracking of hydrocarbon, particularly petroleum, fractions at relatively low pressures and high temperatures in a system where the endothermic heat required for cracking is supplied by catalyst as the heat transfer medium, which catalyst has been heated by burning coke deposited on the catalyst during cracking; and wherein a decomposable compound of platinum, palladium, ruthenium, iridium, osmium, rhodium or rhenium, is introduced into contact with the cracking catalyst during said process.Type: GrantFiled: September 26, 1980Date of Patent: September 21, 1982Assignee: Mobil Oil CorporationInventor: Albert B. Schwartz
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Patent number: 4309280Abstract: A process is provided for increasing gasoline octane number and/or total gasoline yield in catalytic cracking units by the addition of a very small amount of finely divided shape selective additive promoter, which additive promoter is not intimately combined with a substantial amount of another solid prior to contact with the cracking catalyst. The additive promoter, in one embodiment, is a crystalline aluminosilicate zeolite having a silica to alumina mole ratio greater than about 12 and a constraint index within the approximate range of 1 to 12.Type: GrantFiled: July 18, 1980Date of Patent: January 5, 1982Assignee: Mobil Oil CorporationInventors: Edward J. Rosinski, Albert B. Schwartz
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Patent number: 4298695Abstract: A method is disclosed for the conversion of synthesis gas to a liquid hydrocarbon product having a boiling range of less than 400.degree. F. at a 90% overhead utilizing a novel catalyst prepared from finely divided iron powder or iron oxide. The novel method involves contacting synthesis gas with a single particle catalyst containing iron, a crystalline acidic aluminosilicate zeolite having a silica-to-alumina ratio of at least 12, a pore size greater than about 5 Angstrom units, and a constraint index of about 1 to 12, and a matrix. The catalyst does not contain promoters.Type: GrantFiled: February 11, 1980Date of Patent: November 3, 1981Assignee: Mobil Oil CorporationInventors: Stephen A. Butter, Arthur W. Chester, Albert B. Schwartz
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Patent number: 4265787Abstract: Operation of regenerators of commercial equipment for catalytic cracking of hydrocarbon feedstock, such as gas oil, in the absence of added hydrogen is improved considerably by use of a cracking catalyst which contains a minute amount, as low as fractions of a part per million (ppm), of a metal from periods 5 and 6 of Group VIII of the Periodic Table or rhenium. These powerful dehydrogenation metals, in the amounts here used, do not have serious adverse effect on the cracking operation and reduce CO content of flue gases from the regenerator to negligible amounts.Type: GrantFiled: April 17, 1978Date of Patent: May 5, 1981Assignee: Mobil Oil CorporationInventor: Albert B. Schwartz
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Patent number: 4258218Abstract: An improved process using a rare earth-containing catalyst is provided. The catalyst comprises a composite of matrix and rare earth or of zeolite, rare earth and matrix, usually alumina. The rare earth can be a single metal or a mixture of rare earth metals. The process involved is the conversion of alcohols or ethers to gasoline boiling range hydrocarbons.Type: GrantFiled: January 25, 1979Date of Patent: March 24, 1981Assignee: Mobil Oil CorporationInventors: Francis G. Dwyer, Albert B. Schwartz
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Patent number: RE32239Abstract: An improved moving bed continuous catalytic cracking process for cracking hydrocarbon feedstocks, such as gas oil, in the absence of added hydrogen, which includes the use of a minute amount of dispersed platinum supported directly on a cracking catalyst. The trace of platinum induces a substantial increase in the heat efficiency with which coke on catalyst is converted to CO.sub.2 in the regenerator section with minimal or no detriment to the cracking reaction.Type: GrantFiled: May 24, 1985Date of Patent: September 2, 1986Assignee: Mobil Oil CorporationInventor: Albert B. Schwartz