Patents by Inventor Charles L. Hemler
Charles L. Hemler 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: 8999250Abstract: One exemplary embodiment can be a process for mixing catalyst in a regenerator. The process can include providing a first stream of catalyst, a second stream of catalyst mixed with the first stream of catalyst, and an oxygen-containing gas to a chamber via a distributor of the regenerator. Generally, the chamber imparts a swirl to at least one of the oxygen-containing gas, the first catalyst, and the second catalyst for regenerating the catalyst.Type: GrantFiled: August 21, 2014Date of Patent: April 7, 2015Assignee: UOP LLCInventor: Charles L. Hemler, Jr.
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Publication number: 20140363352Abstract: One exemplary embodiment can be a process for mixing catalyst in a regenerator. The process can include providing a first stream of catalyst, a second stream of catalyst mixed with the first stream of catalyst, and an oxygen-containing gas to a chamber via a distributor of the regenerator. Generally, the chamber imparts a swirl to at least one of the oxygen-containing gas, the first catalyst, and the second catalyst for regenerating the catalyst.Type: ApplicationFiled: August 21, 2014Publication date: December 11, 2014Inventor: Charles L. Hemler, JR.
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Patent number: 8815761Abstract: One exemplary embodiment can be a process for mixing catalyst in a regenerator. The process can include providing a first stream of catalyst, a second stream of catalyst mixed with the first stream of catalyst, and an oxygen-containing gas to a chamber via a distributor of the regenerator. Generally, the chamber imparts a swirl to at least one of the oxygen-containing gas, the first catalyst, and the second catalyst for regenerating the catalyst.Type: GrantFiled: May 18, 2012Date of Patent: August 26, 2014Assignee: UOP LLCInventor: Charles L. Hemler, Jr.
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Publication number: 20130310244Abstract: One exemplary embodiment can be a process for mixing catalyst in a regenerator. The process can include providing a first stream of catalyst, a second stream of catalyst mixed with the first stream of catalyst, and an oxygen-containing gas to a chamber via a distributor of the regenerator. Generally, the chamber imparts a swirl to at least one of the oxygen-containing gas, the first catalyst, and the second catalyst for regenerating the catalyst.Type: ApplicationFiled: May 18, 2012Publication date: November 21, 2013Applicant: UOP, LLCInventor: Charles L. Hemler, JR.
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Publication number: 20120312722Abstract: One exemplary embodiment can be a process for fluid catalytic cracking The process can include providing a mixture of a fuel gas and at least one of steam and nitrogen to a catalyst stripping zone of a reaction zone. Usually, the fuel gas is added in an amount effective to add heat duty to a regeneration zone for a catalyst of the reaction zone.Type: ApplicationFiled: June 10, 2011Publication date: December 13, 2012Applicant: UOP, LLCInventors: Neal E. Cammy, Patrick D. Walker, Thomas William Lorsbach, Charles L. Hemler, JR.
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Publication number: 20070205139Abstract: A fluid catalytic cracking process includes feeding hydrocarbon into a riser in the presence of a catalyst, cracking the hydrocarbon in the riser in the presence of the catalyst to form a cracked stream, and separating the catalyst from the cracked stream. When in a gasoline mode, the hydrocarbon is fed through a first distributor into the riser, and when in a light olefin mode, the hydrocarbon is fed through a second distributor into the riser. The second distributor is positioned at a higher elevation than the first distributor.Type: ApplicationFiled: December 29, 2006Publication date: September 6, 2007Inventors: SATHIT KULPRATHIPANJA, Daniel N. Myers, Paolo Palmas, Mark W. Schnaith, Ismail B. Cetinkaya, Peter J. Van Opdorp, Charles L. Hemler
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Patent number: 6248297Abstract: An FCC apparatus places a quench chamber above a reactor vessel and a hot stripper below a reactor vessel to provide a progressively decreasing temperature profile up the structure of the FCC arrangement and equipment for sequential reaction control. A riser contains the primary catalytic reactions of the hydrocarbon vapor and delivers the reacted vapors to the reactor structure. Starting from the bottom of the structure the hot stripper has the highest temperature and desorbs or displaces hydrocarbons from the catalyst to terminate long residence time catalytic reactions. Above the hot stripper bulk separation equipment divides the main vapor and catalyst stream to limit residence time of major catalytic reactions. At a yet higher elevation and lower internal temperature quench equipment arrests thermal reactions of the vapor stream. This structure arrangement permits reliable control of reaction time to obtain desired products and enhances mechanical reliability of the structure.Type: GrantFiled: January 6, 1995Date of Patent: June 19, 2001Assignee: UOP LLCInventors: Laurence O. Stine, Charles L. Hemler, Carlos A. Cabrera, David A. Lomas
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Patent number: 5234578Abstract: The simultaneous use of lift gas in a riser zone that, operates above 975.degree. F. (525.degree. C.) and directly transfers catalyst and hydrocarbons to a series of cyclone separators, the stripping of spent catalyst in a heated stripper zone for the recovery of additional hydrocarbon vapors, and the immediate quenching of a converted hydrocarbon feed upon leaving a cyclone separator raises the octane and product yield in an FCC process. The process uses the specific steps of passing regenerated catalyst particles into the lower section of a substantially vertical riser conversion zone at a temperature greater than 975.degree. F. and accelerating the particles up the riser by contact with a lift gas comprising C.sub.3 and lighter hydrocarbons to a velocity of at least 1.2 meters per second. A series of injection nozzles introduce the feed into the moving catalyst in an upper portion of the riser in an amount that will maintain an average temperature of at least 520.degree. C. in the riser.Type: GrantFiled: September 26, 1991Date of Patent: August 10, 1993Assignee: UOPInventors: Laurence O. Stine, Charles L. Hemler, Carlos A. Cabrera, David A. Lomas
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Patent number: 4425301Abstract: A catalyst regeneration process and apparatus for the oxidative removal of coke from a coke contaminated fluid catalyst. The process comprises a high temperature coke combustion zone, a catalyst disengagement zone and an external heat removal zone. A mixture of coke contaminated catalyst, oxygen containing gas, hot regenerated catalyst and cool regenerated catalyst from the heat removal zone are contacted in the high temperature combustion zone, the temperature of which is controlled by adjusting the rate at which catalyst is recycled from the heat removal zone. The temperature of the catalyst-gas mixture is controlled by adjusting the rate at which hot catalyst is recycled from the disengagement zone.Type: GrantFiled: November 3, 1982Date of Patent: January 10, 1984Assignee: UOP Inc.Inventors: Anthony G. Vickers, Harold U. Hammershaimb, Charles L. Hemler, Jr.
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Patent number: 4374750Abstract: A catalyst regeneration process and apparatus for the oxidative removal of coke from a coke contaminated fluid catalyst. The process comprises a high temperature coke combustion zone, a catalyst disengagement zone and an external heat removal zone. A mixture of coke contaminated catalyst, oxygen containing gas, hot regenerated catalyst and cool regenerated catalyst from the heat removal zone are contacted in the high temperature combustion zone, the temperature of which is controlled by adjusting the rate at which catalyst is recycled from the heat removal zone. The temperature of the catalyst-gas mixture is controlled by adjusting the rate at which hot catalyst is recycled from the disengagement zone.Type: GrantFiled: August 3, 1981Date of Patent: February 22, 1983Assignee: UOP Inc.Inventors: Anthony G. Vickers, Harold U. Hammershaimb, Charles L. Hemler, Jr.
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Patent number: 4198287Abstract: A method for regenerating a coke-contaminated cracking catalyst with the simultaneous carefully controlled combustion of CO to CO.sub.2 within a regeneration zone to produce regenerated catalyst and flue gas. Novel features of the method include adding to the regeneration zone, independently of the cracking catalyst, a CO oxidation promoter and combusting CO to CO.sub.2 in the presence of the promoter and regenerated catalyst. The oxidation promoter may be added to the regeneration zone in amounts to control the CO concentration in the flue gas, a regeneration zone temperature, or the residual carbon concentration on regenerated catalyst.Type: GrantFiled: February 17, 1978Date of Patent: April 15, 1980Assignee: UOP Inc.Inventors: Charles L. Hemler, Jr., Laurence O. Stine
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Patent number: 4148751Abstract: A method for regenerating a coke-contaminated cracking catalyst with the simultaneous carefully controlled catalyzed combustion of CO to CO.sub.2 within a regeneration zone to produce regenerated catalyst and flue gas. Novel features of the method include adding to the regeneration zone, independently of the cracking catalyst, a supported CO oxidation promoter and combusting CO to CO.sub.2 in the presence of the promoter and regenerated catalyst. A supported oxidation promoter may be added to the regeneration zone in amounts to control the CO concentration in the flue gas, a regeneration zone temperature, or the residual carbon concentration on regenerated catalyst.Type: GrantFiled: June 17, 1976Date of Patent: April 10, 1979Assignee: UOP Inc.Inventors: Charles L. Hemler, Jr., Laurence O. Stine
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Patent number: 4108795Abstract: A method for regenerating a coke-contaminated cracking catalyst with the simultaneous carefully controlled combustion of CO to CO.sub.2 within a regeneration zone to produce regenerated catalyst and flue gas. Novel features of the method include adding to the regeneration zone, independently of the cracking catalyst, a liquid comprising a soluble CO oxidation promoter selected from the group consisting of the noble metals and compounds thereof and combusting CO to CO.sub.2 in the presence of the promoter and regenerated catalyst. The liquid may be added to the regeneration zone in amounts to control the CO concentration in the flue gas, a regeneration zone temperature, or the residual carbon concentration on regenerated catalyst.Type: GrantFiled: November 1, 1976Date of Patent: August 22, 1978Assignee: UOP Inc.Inventors: Charles L. Hemler, Laurence O. Stine