Patents by Inventor Laurence O. Stine

Laurence O. Stine 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).

  • Patent number: 9963407
    Abstract: A process of oxidative dehydrogenation in a fluidized riser reactor is described. Hydrocarbon feed and catalyst are fed to the bottom of the fluidized riser reactor. Part of the hydrogen produced in the dehydrogenation reaction is oxidized using oxygen introduced into the riser reactor through oxygen injection ports to produce the heat required for the dehydrogenation reaction.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: May 8, 2018
    Assignee: UOP LLC
    Inventors: Laurence O. Stine, Bipin V. Vora, Malek Y. S. Ibrahim, Daniel H. Wei
  • Patent number: 9126174
    Abstract: One exemplary embodiment can be a hydroprocessing method. The hydroprocessing method can include providing a feed and a stream including hydrogen to a vessel. The vessel may have a catalyst collector and an internal riser. Generally, a catalyst circulates within the vessel by at least partially rising within the internal riser.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: September 8, 2015
    Assignee: UOP LLC
    Inventor: Laurence O. Stine
  • Publication number: 20140371504
    Abstract: A process of oxidative dehydrogenation in a fluidized riser reactor is described. Hydrocarbon feed and catalyst are fed to the bottom of the fluidized riser reactor. Part of the hydrogen produced in the dehydrogenation reaction is oxidized using oxygen introduced into the riser reactor through oxygen injection ports to produce the heat required for the dehydrogenation reaction.
    Type: Application
    Filed: June 18, 2013
    Publication date: December 18, 2014
    Inventors: Laurence O. Stine, Bipin V. Vora, Malek Y.S. Ibrahim, Daniel H. Wei
  • Publication number: 20140371503
    Abstract: A single stage dehydrogenation reactor system including a charge heater and one or more reactors is described. The hydrocarbon feed is combined with hydrogen and heated in a charge heater to a temperature lower than the dehydrogenation temperature to avoid thermal cracking. Before entering the dehydrogenation reactors, oxygen is added. The oxidative preheat then takes place in the presence of the dual functional catalyst which has dehydrogenation and selective oxidation activities. The oxygen selectively burns hydrogen and raises the reaction temperature, and the dehydrogenation reaction then occurs.
    Type: Application
    Filed: June 18, 2013
    Publication date: December 18, 2014
    Inventors: Daniel H. Wei, Laurence O. Stine
  • Publication number: 20130079571
    Abstract: One exemplary embodiment can be a hydrocarbon conversion method. Generally, the method includes providing a hydrocarbon stream having one or more C10-C14 hydrocarbons to a hydroprocessing zone and a donor solvent stream at least partially obtained from the hydroprocessing zone to a slurry hydrocracking zone. The hydroprocessing zone may have a vessel containing an internal riser. Usually, a hydroprocessing catalyst circulates within the vessel by at least partially rising within the internal riser.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: UOP, LLC.
    Inventor: Laurence O. Stine
  • Patent number: 8373014
    Abstract: Systems and processes for the alkylation of a hydrocarbon are provided that utilize a plurality of moving bed radial flow reactors. An olefin injection point can be provided prior to each reactor by providing a mixer that mixes olefin with a hydrocarbon feed, or with the effluent stream from an upstream reactor, to produce a reactor feed stream. Catalyst can be provided from the reaction zone of one reactor to the reaction zone of a downstream reactor through catalyst transfer pipes, and can be regenerated after passing through the reaction zones of the reactors. The moving bed radial flow reactors can be stacked in one or more reactor stacks.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: February 12, 2013
    Assignee: UOP LLC
    Inventors: Clayton C. Sadler, Mary Jo Wier, Laurence O. Stine, Christopher Naunheimer
  • Patent number: 8329028
    Abstract: Systems and processes for hydrocarbon conversion are provided that utilize a plurality of moving bed reactors. The reactors may be moving bed radial flow reactors. Optional mixers that mix a portion of a second hydrocarbon feed with the effluent stream from an upstream reactor, to produce reactor feed streams may be employed, and the reactor feed streams may be introduced at injection points prior to each reactor. Catalyst can be provided from the reaction zone of one reactor to the reaction zone of a downstream reactor through catalyst transfer pipes, and can be regenerated after passing through the reaction zones of the reactors. The moving bed reactors can be stacked in one or more reactor stacks.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: December 11, 2012
    Assignee: UOP LLC
    Inventors: Clayton C. Sadler, Mary Jo Wier, Laurence O. Stine, Christopher Naunheimer
  • Patent number: 8323476
    Abstract: Systems and processes for the hydroprocessing of a hydrocarbonaceous feed are provided that utilize a plurality of moving bed reactors. The reactors may be moving bed radial flow reactors. A hydrogen injection point can be provided prior to each reactor by providing a mixer that mixes hydrogen with a hydrocarbonaceous feed, or with the effluent stream from an upstream reactor, to produce a reactor feed stream. Catalyst can be provided from the reaction zone of one reactor to the reaction zone of a downstream reactor through catalyst transfer pipes, and can be regenerated after passing through the reaction zones of the reactors. The moving bed reactors can be stacked in one or more reactor stacks.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: December 4, 2012
    Assignee: UOP LLC
    Inventors: Clayton C. Sadler, Mary Jo Wier, Laurence O. Stine, Christopher Naunheimer
  • Patent number: 8230921
    Abstract: Enhanced recovery of crude oil from an oil well is provided by in-situ cracking of an oxygenated organic compound to form hydrogen. The crude oil is then hydrogenated and hydrogenation reaction products and crude oil are recovered from the oil well.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: July 31, 2012
    Assignee: UOP LLC
    Inventors: Laurence O. Stine, Paul T. Barger
  • Publication number: 20110240522
    Abstract: One exemplary embodiment can be a hydroprocessing method. The hydroprocessing method can include providing a feed and a stream including hydrogen to a vessel. The vessel may have a catalyst collector and an internal riser. Generally, a catalyst circulates within the vessel by at least partially rising within the internal riser.
    Type: Application
    Filed: March 28, 2011
    Publication date: October 6, 2011
    Applicant: UOP, LLC
    Inventor: Laurence O. Stine
  • Publication number: 20110152590
    Abstract: Systems and processes for the alkylation of a hydrocarbon are provided that utilize a plurality of moving bed radial flow reactors. An olefin injection point can be provided prior to each reactor by providing a mixer that mixes olefin with a hydrocarbon feed, or with the effluent stream from an upstream reactor, to produce a reactor feed stream. Catalyst can be provided from the reaction zone of one reactor to the reaction zone of a downstream reactor through catalyst transfer pipes, and can be regenerated after passing through the reaction zones of the reactors. The moving bed radial flow reactors can be stacked in one or more reactor stacks.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 23, 2011
    Applicant: UOP LLC
    Inventors: Clayton C. Sadler, Mary Jo Wier, Laurence O. Stine, Christopher Naunheimer
  • Publication number: 20110152591
    Abstract: Systems and processes for hydrocarbon conversion are provided that utilize a plurality of moving bed reactors. The reactors may be moving bed radial flow reactors. Optional mixers that mix a portion of a second hydrocarbon feed with the effluent stream from an upstream reactor, to produce reactor feed streams may be employed, and the reactor feed streams may be introduced at injection points prior to each reactor. Catalyst can be provided from the reaction zone of one reactor to the reaction zone of a downstream reactor through catalyst transfer pipes, and can be regenerated after passing through the reaction zones of the reactors. The moving bed reactors can be stacked in one or more reactor stacks.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 23, 2011
    Applicant: UOP LLC
    Inventors: Clayton C. Sadler, Mary Jo Wier, Laurence O. Stine, Christopher Naunheimer
  • Publication number: 20110147264
    Abstract: Systems and processes for the hydroprocessing of a hydrocarbonaceous feed are provided that utilize a plurality of moving bed reactors. The reactors may be moving bed radial flow reactors. A hydrogen injection point can be provided prior to each reactor by providing a mixer that mixes hydrogen with a hydrocarbonaceous feed, or with the effluent stream from an upstream reactor, to produce a reactor feed stream. Catalyst can be provided from the reaction zone of one reactor to the reaction zone of a downstream reactor through catalyst transfer pipes, and can be regenerated after passing through the reaction zones of the reactors. The moving bed reactors can be stacked in one or more reactor stacks.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 23, 2011
    Applicant: UOP LLC
    Inventors: Clayton C. Sadler, Mary Jo Wier, Laurence O. Stine, Christopher Naunheimer
  • Publication number: 20100078172
    Abstract: Enhanced recovery of crude oil from an oil well is provided by in-situ cracking of an oxygenated organic compound to form hydrogen. The crude oil is then hydrogenated and hydrogenation reaction products and crude oil are recovered from the oil well.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Inventors: Laurence O. Stine, Paul T. Barger
  • Patent number: 7652181
    Abstract: An improved alkylation reactor design is disclosed. The design uses reactor effluent recycle to reduce the difference in temperature across the reaction zone improving selectivity and insuring the maintenance of a liquid phase in the reactor.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: January 26, 2010
    Assignee: UOP LLC
    Inventors: Robert J. Schmidt, Michael R. Smith, Elena Z. Maurukas, James A. Johnson, Laurence O. Stine
  • Patent number: 7037871
    Abstract: A process is disclosed for regenerating a hydrocarbon conversion catalyst comprising zeolite L with ozone. The catalyst is contacted with ozone at a temperature of from about 20 to about 250° C. and a concentration of ozone of from about 0.1 to about 5 mol-%. The catalyst may contain coke. The process at least partially restores the activity of the catalyst. The process is particularly useful for reforming and dehydrocyclodimerization catalysts.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: May 2, 2006
    Assignee: UOP LLC
    Inventors: Leonid B. Galperin, Laurence O. Stine, Margaret A. Stine, Timur V. Voskoboinikov
  • Patent number: 6689927
    Abstract: A process for the production of C8 alkenes with high selectivities to 2,4,4-trimethylpentene by the oligomerization of isobutene and/or n-butene at lower temperatures is disclosed. Higher proportions of heavy paraffins mixed with the butene feed in the oligomerization zone improve the selectivity to 2,4,4-trimethylpentene along with better selectivity to octene and lower selectivity to dodecene. Additionally, we have found that n-butene codimerizes with isobutene selectively to 2,4,4-trimethylpentene.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: February 10, 2004
    Assignee: UOP LCC
    Inventors: Robert R. Frame, Laurence O. Stine, Hayim Abrevaya
  • Patent number: 6649130
    Abstract: A hybrid reactor arrangement provides a reactive design that achieves higher acrylonitrile yield and lower catalyst circulating rate. The hybrid reactor design first passes a mixture of reactants and catalyst through a circulating bubbling bed reaction section. Heat exchange coils or other cooling medium in the bubbling bed reactor section maintain temperature in a range that will maximize the selectivity of reactants to the acrylonitrile product. The bubbling bed reactor section provides the initial conversion of the reactant. A circulating fluidized bed reaction zone finishes the conversion of reactants to a high yield under conditions that reduce the occurrence of secondary reactions that could otherwise produce unwanted by-products. The circulating fluidized bed reactor section maintains nearly plug flow conditions that allow continued conversion of unreacted feed components through primary reactions while limiting the time for secondary reactions to continue and diminish the final yield of products.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: November 18, 2003
    Assignee: UOP LLC
    Inventors: Robert L. Zhou, W. Patrick Dennler, Anil R. Oroskar, Bipin V. Vora, Hayim Abrevaya, Laurence O. Stine
  • Patent number: 6284938
    Abstract: A process for the production of C8 and higher carbon number alkene oligomers by the oligomerization of light olefins to heavier olefins is improved by the addition of heavy paraffins to the oligomerization zone. The recycle of the heavy paraffins extends the catalyst activity and improves the catalyst life. The non-reactive paraffin stream may be recycled through the process with minimal losses and make-up.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: September 4, 2001
    Assignee: UOP LLC
    Inventors: Laurence O. Stine, Brian S. Muldoon, Steven C. Gimre, Robert R. Frame
  • Patent number: 6248297
    Abstract: 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: Grant
    Filed: January 6, 1995
    Date of Patent: June 19, 2001
    Assignee: UOP LLC
    Inventors: Laurence O. Stine, Charles L. Hemler, Carlos A. Cabrera, David A. Lomas