Patents Represented by Attorney Jerome E. Luecke
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Patent number: 4310471Abstract: Salts of surfactant alkyl aromatic sulfonic acids react with lower dialkyl sulfates under anhydrous conditions to form the corresponding novel lower alkyl sulfonate esters and as by-products, the salts of the corresponding alkyl sulfuric acid.Type: GrantFiled: February 28, 1980Date of Patent: January 12, 1982Assignee: Exxon Research & Engineering Co.Inventors: Alexis A. Oswald, Edmund J. Mozeleski
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Patent number: 4285193Abstract: A novel method for operating gas turbine combustors while minimizing the formation and discharge of pollutants such as NO.sub.x is described. In one embodiment, the use of more than one catalyst in series is employed to effect fuel oxidation at temperatures below flame temperature, thereby minimizing NO.sub.x formation.In another embodiment, a staged catalytic combustor is employed comprising a two zone combustion chamber involving a noncatalytic zone in which fuel is partially combusted under fuel rich conditions and combustion is completed in the second zone, utilizing catalytic oxidation with excess air to complete the combustion and minimize NO.sub.x formation.Still another embodiment concerns the use of a novel design for the primary combustion zone by which fuel is partially burned with substoichiometric amounts of air and, thereafter, the partially burned primary zone effluent is mixed into the secondary air stream where continued combustion proceeds at a temperature below that needed for NO.sub.Type: GrantFiled: October 24, 1978Date of Patent: August 25, 1981Assignee: Exxon Research & Engineering Co.Inventors: Henry Shaw, Alvin Skopp
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Patent number: 4202744Abstract: Hydrogen is produced in a cyclic metals oxidation/carbon reduction process. In particular, elemental iron or cobalt is oxidized in an aqueous solution of an alkali metal hydroxide with the simultaneous generation of hydrogen. The iron or cobalt oxidation products of the reaction are thereafter reduced to elemental iron or cobalt by contact with a carbonaceous reducing agent at elevated temperatures and the reduced material recycled for reoxidation. In an alternate operation, hydrogen is produced in a cyclic electrolytic/carbon reduction process wherein elemental iron or cobalt is electrolytically converted to corresponding oxidation products with the simultaneous generation of hydrogen. The electrolytic cell used in this process comprises a cathode, a magnetic anode that is adapted to attract and retain iron and/or cobalt particles and an aqueous electrolyte.Type: GrantFiled: May 14, 1979Date of Patent: May 13, 1980Assignee: Exxon Research & Engineering Co.Inventors: Yen-Chi Pan, John S. Batzold
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Patent number: 4199555Abstract: Nitrogen oxides are removed from gaseous mixtures comprising the same by contacting with a catalyst comprising a base metal component carried on a silica-alumina base in the presence of ammonia.Type: GrantFiled: August 23, 1978Date of Patent: April 22, 1980Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Takuji Itoh, Satoshi Sakurada, Nobuaki Tagaya
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Patent number: 4197192Abstract: Vanadium and nickel levels in petroleum feeds are decreased by oxidation of the feed prior to the usual processing or upgrading steps. An organic peroxyacid is used in the oxidation. The reduction in vanadium and nickel levels results in increased lifetime of catalysts used in subsequent processing steps such as in hydrodesulfurization or catalytic cracking.Type: GrantFiled: October 23, 1978Date of Patent: April 8, 1980Assignee: Exxon Research & Engineering Co.Inventor: Kenneth A. Gould
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Patent number: 4177289Abstract: N,N-dichloro-N-acyl compounds such as N,N-dichlorocarbamates, sulfonamides, amidosulfonamides selectively react with conjugated dienes to yield the corresponding 1,4-adducts, i.e. N-chloro-N-chlorocrotyl compounds. The N-chloro group of these adducts can be selectively reduced by aqueous sodium sulfite. Both the original and reduced adducts are effective fungicides, herbicides and bacteriocides.Type: GrantFiled: April 24, 1978Date of Patent: December 4, 1979Assignee: Exxon Research & Engineering Co.Inventors: Francis A. Daniher, Alexis A. Oswald
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Patent number: 4117083Abstract: A process for increasing the average reaction rate of reduction of UO.sub.2 F.sub.2. The UO.sub.2 F.sub.2 is treated with an organic compound which interacts with the UO.sub.2 F.sub.2. The combination is decomposed to yield UO.sub.2 F.sub.2 in a kinetically reactive state.Type: GrantFiled: December 21, 1976Date of Patent: September 26, 1978Assignee: Exxon Research & Engineering Co.Inventor: Edward T. Maas, Jr.
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Patent number: 4115515Abstract: An improved method and apparatus for reducing NO.sub.x emissions to the atmosphere from stationary combustion sources. The improvement is accomplished by providing a plurality of zones and/or stages for injecting a suitable reducing gas and then injecting the reducing gas through one or more of said zones. The particular zone or zones actually used will be determined by temperature of the combustion effluent gas in the immediate vicinity thereof. Similarly, the exact composition of the reducing gas employed will be determined by the same temperature.Type: GrantFiled: June 2, 1977Date of Patent: September 19, 1978Assignee: Exxon Research and Engineering CompanyInventors: Arthur R. Tenner, David W. Turner
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Patent number: 4087383Abstract: Process for preparing shaped base materials for use in solid catalysts for commercial processes. The solid contact material is prepared by pre-soaking a porous solid particulate carrier material in an organic liquid, immersing the carrier without drying in a dilute acid solution for a given time interval, washing, drying and calcining the impregnated carrier. After calcination, the carrier is impregnated with an active material.Type: GrantFiled: February 18, 1976Date of Patent: May 2, 1978Assignee: Exxon Research & Engineering Co.Inventors: Martin O. Gernand, Dale D. Maness, Neville L. Cull
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Patent number: 4059418Abstract: Sulfur dioxide is removed from flue gases by contacting the flue gas at elevated temperature with a sorbent comprising a shaped refractory substrate of low surface area and an adherent oxide film impregnated with a transition metal or metal oxide which is selective for the removal of sulfur oxide from gas mixtures on the external surface of the substrate. A technique for laying down the adherent oxide film on the refractory substrate is also disclosed.Type: GrantFiled: March 17, 1975Date of Patent: November 22, 1977Assignee: Exxon Research & Engineering Co.Inventor: Neville L. Cull
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Patent number: RE29771Abstract: Sulfur dioxide is removed from gas mixtures such as flue gas containing the same by contacting the gas mixture with a solid sorbent comprising a porous gamma-alumina base, about 2 to 20 percent by weight (based on alumina) of a coating of a refractory oxide such as titanium dioxide, zirconium dioxide, or silica, and an active material, such as copper oxide, which is capable of selective removal of sulfur oxides from a gas mixture.Type: GrantFiled: September 19, 1977Date of Patent: September 19, 1978Assignee: Exxon Research & Engineering Co.Inventors: Neville L. Cull, Warren M. Smith
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Patent number: RE30125Abstract: This invention relates to a process for the removal of dissolved species from aqueous solutions, which comprises contacting said aqueous solution with an emulsion, said emulsion comprising an exterior phase which is characterized as being immiscible with said aqueous solution and yet permeable to said dissolved species, and an interior phase which contains a reactant capable of converting said dissolved species to a non-permeable form. The dissolved species permeate the exterior phase, into the interior phase where they are converted into nonpermeable forms and thus retained in the interior phase of said emulsion. The aqueous solution, depleted in said dissolved species, is separated from said emulsion and the emulsion cycled for reuse. In one preferred embodiment said dissolved species are ions, and an ion exchange compound is incorporated in the exterior phase of the emulsion, to promote the permeation of said ions through the exterior phase.Type: GrantFiled: October 13, 1978Date of Patent: October 23, 1979Assignee: Exxon Research & Engineering Co.Inventors: Norman N. Li, Robert P. Cahn, Adam L. Shrier
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Patent number: RE30179Abstract: The instant invention relates to an improvement in the liquid membrane process for removing soluble materials from solution. More specifically, in a process wherein soluble materials are removed from solution by contacting said solution with an emulsion, the external phase of which is immiscible with said solution and permeable to said soluble materials and the internal phase contains a reactant which reacts with said soluble material and converts said soluble material to a material which is insoluble and thus trapped in the internal phase, the improvement which comprises maintaining the concentration of said reactant in the internal phase of the emulsion at a level at which the concentration of said soluble material in the internal phase of the emulsion is less than the concentration to which it is desirable to lower said soluble material in said solution. Preferably the solution is aqueous and said soluble material is a salt.Type: GrantFiled: October 13, 1978Date of Patent: December 25, 1979Assignee: Exxon Research & Engineering Co.Inventors: Norman N. Li, Robert P. Cahn, Adam L. Shrier