Reforming In All Stages Patents (Class 208/63)
  • Patent number: 10384186
    Abstract: Radiant fired heaters used with reactors are described. The apparatus includes at least two sets of radiant fired heaters, the first set being at a second height less than the first height. Each set of radiant fired heaters comprises at least one radiant fired heater. Each radiant fired heater has at least one process coil disposed within the heater, burners, and a flue gas outlet. There is at least one inlet manifold having an inlet and multiple outlets, with each outlet of the inlet manifold in fluid communication with one process coil inlet. There is an outlet manifold having multiple inlets and an outlet, with the multiple inlets in fluid communication with the process coil outlets. A method of selecting a reforming apparatus arrangement is also described.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: August 20, 2019
    Assignee: UOP LLC
    Inventors: Bryan J. Egolf, Kurt M. Vanden Bussche, William M. Hartman, Pengfei Chen, Ka Lok
  • Patent number: 9840413
    Abstract: A reformer assembly for a fuel cell includes a vortex tube receiving heated fuel mixed with steam. A catalyst coats the inner wall of the main tube of the vortex tube and a hydrogen-permeable tube is positioned in the middle of the main tube coaxially with the main tube.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: December 12, 2017
    Assignee: Energyield LLC
    Inventor: Robert Hotto
  • Patent number: 9023298
    Abstract: An apparatus for reforming a hydrocarbon stream is presented. The apparatus involves changing the design of reformers and associated equipment to allow for increasing the processing temperatures in the reformers and heaters. The reformers are operated under different conditions to utilize advantages in the equilibriums, but require modifications to prevent increasing thermal cracking and to prevent increases in coking.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: May 5, 2015
    Assignee: UOP LLC
    Inventors: Mark D. Moser, Clayton C. Sadler, Mark P. Lapinski, Kurt M. VandenBussche
  • Patent number: 8999143
    Abstract: A process is presented for increasing the aromatics content in a reformate process stream. The process modifies existing processes to change the operation without changing the reactors or heating units. The process includes bypasses to utilize heating capacity of upstream heating units, and passes the excess capacity of the upstream heating units to downstream process streams.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: April 7, 2015
    Assignee: UOP LLC
    Inventors: Clayton C. Sadler, Mark D. Moser
  • Publication number: 20140374312
    Abstract: Processes and apparatuses for producing aromatic compounds from a naphtha feed stream are provided herein. In an embodiment, a process for producing aromatic compounds includes heating the naphtha feed stream to produce a heated naphtha feed stream. The heated naphtha feed stream is reformed within a plurality of reforming stages that are arranged in series to produce a downstream product stream. The plurality of reforming stages is operated at ascending reaction temperatures. The naphtha feed stream is heated by transferring heat from the downstream product stream to the naphtha feed stream to produce the heated naphtha feed stream and a cooled downstream product stream.
    Type: Application
    Filed: June 19, 2013
    Publication date: December 25, 2014
    Inventors: David A. Wegerer, Keyur Y. Pandya
  • Patent number: 8906223
    Abstract: A process is presented for increasing the aromatics content in a reformate process stream. The process modifies existing processes to change the operation without changing the reactors or heating units. The process includes bypasses to utilize heating capacity of upstream heating units, and passes the excess capacity of the upstream heating units to downstream process streams.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: December 9, 2014
    Assignee: UOP LLC
    Inventors: Mark D. Moser, Clayton C. Sadler
  • Patent number: 8900442
    Abstract: A process is presented for increasing the aromatics content in a reformate process stream. The process modifies existing processes to change the operation without changing the reactors or heating units. The process includes bypasses to utilize heating capacity of upstream heating units, and passes the excess capacity of the upstream heating units to downstream process streams.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: December 2, 2014
    Assignee: UOP LLC
    Inventors: Clayton C. Sadler, Mark D. Moser
  • Patent number: 8882990
    Abstract: Embodiments of methods for making renewable diesel by deoxygenating (decarboxylating/decarbonylating/dehydrating) fatty acids to produce hydrocarbons are disclosed. Fatty acids are exposed to a catalyst selected from a) Pt and MO3 on ZrO2 (M is W, Mo, or a combination thereof), or b) Pt/Ge or Pt/Sn on carbon, and the catalyst decarboxylates at least 10% of the fatty acids. In particular embodiments, the catalyst consists essentially of 0.7 wt % Pt and 12 wt % WO3, relative to a mass of catalyst, or the catalyst consists essentially of a) 5 wt % Pt and b) 0.5 wt % Ge or 0.5 wt % Sn, relative to a mass of catalyst. Deoxygenation is performed without added hydrogen and at less than 100 psi. Disclosed embodiments of the catalysts deoxygenate at least 10% of fatty acids in a fatty acid feed, and remain capable of deoxygenating fatty acids for at least 200 minutes to more than 350 hours.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: November 11, 2014
    Assignee: Battelle Memorial Institute
    Inventors: Richard T. Hallen, Karl O. Albrecht, Heather M. Brown, James F. White
  • Patent number: 8882992
    Abstract: The present invention relates to a multistage reforming process to produce a high octane product. A naphtha boiling range feedstock is processed in a multi-stage reforming process, in which the process involves at least 1) a penultimate stage for reforming the naphtha feedstock to produce a penultimate effluent 2) a final stage for further reforming at least a portion of the penultimate effluent 3) a regeneration step for the final stage catalyst. The severity of the penultimate stage can be increased during final stage catalyst regeneration in order to maintain the target RON of the reformate product and avoid reactor downtime.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: November 11, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Cong-Yan Chen, Stephen J. Miller, James N. Ziemer
  • Patent number: 8753503
    Abstract: One exemplary embodiment can be a process for producing a reformate by combining a stream having an effective amount of isopentane and a stream having an effective amount of naphtha for reforming. Generally, the naphtha has not less than about 95%, by weight, of one or more compounds having a boiling point of about 38-about 260° C. as determined by ASTM D86-07. The process may include introducing the combined stream to a reforming reaction zone. The combined stream can have an isopentane:naphtha mass ratio of about 0.10:1.00-about 1.00:1.00.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: June 17, 2014
    Assignee: UOP LLC
    Inventors: Steven L. Krupa, Mark P. Lapinski, Clayton C. Sadler
  • Patent number: 8702969
    Abstract: A hydrocracking process that includes a wax fraction hydrocracking step of hydrocracking the wax fraction contained within a Fischer-Tropsch synthetic oil to obtain a hydrocracked product, a gas-liquid separation step of using a multi-stage gas-liquid separator to separate the hydrocracked product into a gas component, a heavy oil component and a light oil component, a specific component content estimation step of determining the flow rate ratio between the heavy oil component and the light oil component, and using this flow rate ratio to determine an estimated value for the content of a specific hydrocarbon component contained within the hydrocracked product, and a control step of controlling the operation of the wax fraction hydrocracking step on the basis of this estimated value, so that the content of the specific hydrocarbon component falls within a predetermined range.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: April 22, 2014
    Assignees: Japan Oil, Gas and Metals National Corporation, Inpex Corporation, JX Nippon Oil & Energy Corporation, Japan Petroleum Exploration Co., Ltd., Cosmo Oil Co., Ltd., Nippon Steel Engineering Co., Ltd.
    Inventors: Kazuhiko Tasaka, Yuichi Tanaka, Marie Iwama
  • Patent number: 8679320
    Abstract: A process for reforming a hydrocarbon stream is presented. The process involves splitting a naphtha feedstream to at least two feedstreams and passing each feedstream to separation reformers. The reformers are operated under different conditions to utilize the differences in the reaction properties of the different hydrocarbon components. The process utilizes a common catalyst, and common downstream processes for recovering the desired aromatic compounds generated.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: March 25, 2014
    Assignee: UOP LLC
    Inventors: Manuela Serban, Antoine Negiz, Kurt M. VandenBussche
  • Patent number: 8658021
    Abstract: The present invention relates to a multistage reforming process to produce a high octane product. A naphtha boiling range feedstock is processed in a multi-stage reforming process, in which the process involves at least 1) a penultimate stage for reforming the naphtha feedstock to produce a penultimate effluent 2) a final stage for further reforming at least a portion of the penultimate effluent 3) a regeneration step for the final stage catalyst. The severity of the penultimate stage can be increased during final stage catalyst regeneration in order to maintain the target RON of the reformate product and avoid reactor downtime.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: February 25, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Cong-Yan Chen, Stephen J. Miller, James N. Ziemer, Ann J. Liang
  • Patent number: 8628655
    Abstract: A hydrocracking process that includes a wax fraction hydrocracking step of hydrocracking the wax fraction contained within a Fischer-Tropsch synthetic oil to obtain a hydrocracked product, a gas-liquid separation step of using a multi-stage gas-liquid separator to separate the hydrocracked product into a gas component, a heavy oil component and a light oil component, a specific component content estimation step of determining the flow rate ratio between the heavy oil component and the light oil component, and using this flow rate ratio to determine an estimated value for the content of a specific hydrocarbon component contained within the hydrocracked product, and a control step of controlling the operation of the wax fraction hydrocracking step on the basis of this estimated value, so that the content of the specific hydrocarbon component falls within a predetermined range.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: January 14, 2014
    Assignees: Japan Oil, Gas and Metals National Corporation, Inpex Corporation, JX Nippon Oil & Energy Corporation, Japan Petroleum Exploration Co., Ltd., Cosmo Oil Co., Ltd., Nippon Steel Engineering Co., Ltd.
    Inventors: Kazuhiko Tasaka, Yuichi Tanaka, Marie Iwama
  • Patent number: 8419929
    Abstract: The invention discloses a catalytic reforming system and a method thereof. The system comprises a heating device and a reaction device and is characterized in that the reaction device (2-1, 2-2) is connected with a high-pressure separator (4); the high-pressure separator (4) is connected with a stabilizer system (6); the lower part of the stabilizer system (6) is connected with an extraction system (8) through a pipeline; the extraction system (8) is connected with a raffinate oil cutting system (7) through a pipeline on one hand, the middle part of the raffinate oil cutting system (7) is connected with another reaction device (2-3, 2-4) through a pipeline and the heating device (1-3, 1-4); coal oil is directly recovered by the lower part of the raffinate oil cutting system (7) through a pipeline; and the other end of the third reaction device is connected with the high-pressure separator through a pipeline.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: April 16, 2013
    Assignee: Beijing Grand Golden-Bright Engineering & Technologies Co., Ltd.
    Inventor: Ranfeng Ding
  • Patent number: 8394258
    Abstract: The invention relates to a process for producing a new type of high-quality hydrocarbon base oil of biological origin. The process of the invention comprises ketonization, hydrodeoxygenation, and isomerization steps. Fatty acids and/or fatty acid esters based on a biological raw material are preferably used as the feedstock.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: March 12, 2013
    Assignee: Neste Oil Oyj
    Inventors: Eija Koivusalmi, Johan-Fredrik Selin, Juha Moilanen
  • Patent number: 8388829
    Abstract: Embodiments of methods for making renewable diesel by deoxygenating (decarboxylating/decarbonylating/dehydrating) fatty acids to produce hydrocarbons are disclosed. Fatty acids are exposed to a catalyst selected from a) Pt and MO3 on ZrO2 (M is W, Mo, or a combination thereof), or b) Pt/Ge or Pt/Sn on carbon, and the catalyst decarboxylates at least 10% of the fatty acids. In particular embodiments, the catalyst consists essentially of 0.7 wt % Pt and 12 wt % WO3, relative to a mass of catalyst, or the catalyst consists essentially of a) 5 wt % Pt and b) 0.5 wt % Ge or 0.5 wt % Sn, relative to a mass of catalyst. Deoxygenation is performed without added hydrogen and at less than 100 psi. Disclosed embodiments of the catalysts deoxygenate at least 10% of fatty acids in a fatty acid feed, and remain capable of deoxygenating fatty acids for at least 200 minutes to more than 350 hours.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 5, 2013
    Assignee: Battelle Memorial Institute
    Inventors: Richard T. Hallen, Karl O. Albrecht, Heather M. Brown, James F. White
  • Patent number: 8377386
    Abstract: Flow deflector that is capable of changing the flow direction of a fluid during passage through a duct. The duct is formed by an inner and outer duct, which creates an annular region in the duct. The flow deflector forces the fluid passing through the annular region of the duct to flow inside the inner duct, while the fluid passing through the inner duct is forced to flow through the annular region. Reactor tubes for catalytic reactors are formed by assembling tubes comprising said flow deflector and having a catalyst arranged in the inner tube.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: February 19, 2013
    Assignee: Haldor Topsoe A/S
    Inventors: Jesper Norsk, Esben Lauge Sørensen, Niklas Jakobsson
  • Patent number: 8366907
    Abstract: Embodiments of methods for making renewable diesel by deoxygenating (decarboxylating/decarbonylating/dehydrating) fatty acids to produce hydrocarbons are disclosed. Fatty acids are exposed to a catalyst selected from a) Pt and MO3 on ZrO2 (M is W, Mo, or a combination thereof), or b) Pt/Ge or Pt/Sn on carbon, and the catalyst decarboxylates at least 10% of the fatty acids. In particular embodiments, the catalyst consists essentially of 0.7 wt % Pt and 12 wt % WO3, relative to a mass of catalyst, or the catalyst consists essentially of a) 5 wt % Pt and b) 0.5 wt % Ge or 0.5 wt % Sn, relative to a mass of catalyst. Deoxygenation is performed without added hydrogen and at less than 100 psi. Disclosed embodiments of the catalysts deoxygenate at least 10% of fatty acids in a fatty acid feed, and remain capable of deoxygenating fatty acids for at least 200 minutes to more than 350 hours.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: February 5, 2013
    Assignee: Battelle Memorial Institute
    Inventors: Richard T. Hallen, Karl O. Albrecht, Heather M. Brown, James F. White
  • Patent number: 8366909
    Abstract: Processes for reforming of naphtha feedstocks are described. Briefly, a two stage naphtha reforming process is described. The first stage uses a low acidity beta zeolite catalyst under relatively mild reforming conditions to form an effluent. This effluent is passed to a subsequent stage where further reforming occurs using a catalyst containing ZSM-5 zeolite. The second stage is run under mild reforming conditions. The low pressures employed in the reforming process described maximize liquid product yield by avoiding unwanted cracking reactions and production of light products.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: February 5, 2013
    Assignee: Chevron U.S.A. Inc.
    Inventor: Stephen J. Miller
  • Publication number: 20130026066
    Abstract: A process for refining naphtha that results in an improved octane value in a subsequent gasoline blend. Certain embodiments include separating a naphtha feed into light naphtha and heavy naphtha; separating the heavy naphtha into a paraffin stream and non-paraffin stream; introducing the light naphtha to a first isomerization unit, introducing the paraffin stream to a second isomerization unit; introducing the non-paraffin stream to a reforming unit and combining the resulting effluents to form a gasoline blend. The resulting gasoline blend has improved characteristics over gasoline blends that are made without introducing the paraffin stream to a second isomerization unit.
    Type: Application
    Filed: July 27, 2011
    Publication date: January 31, 2013
    Applicant: Saudi Arabian Oil Company
    Inventors: Cemal Ercan, Yuguo Wang, Mohammad R. Al-Dossary, Rashid M. Al-Othman
  • Publication number: 20120273392
    Abstract: A process for reforming a hydrocarbon stream is presented. The process involves splitting a naphtha feedstream to at least two feedstreams and passing each feedstream to separation reformers. The reformers are operated under different conditions to utilize the differences in the reaction properties of the different hydrocarbon components. The process utilizes a common catalyst, and common downstream processes for recovering the desired aromatic compounds generated.
    Type: Application
    Filed: March 23, 2012
    Publication date: November 1, 2012
    Applicant: UOP LLC
    Inventors: Manuela Serban, Antoine Negiz, Kurt M. VandenBussche
  • Patent number: 8282814
    Abstract: One exemplary embodiment of the present invention can be a fired heater for a hydrocarbon conversion process. The fired heater includes inlet and outlet headers or manifolds, a set of heater tubes with each heater tube having an inlet and an outlet, at least one restriction orifice adjacent the inlet of at least one heater tube. The restriction orifice may be within the inlet manifold and adjacent the inlet of a heater tube, or between the inlet manifold and the inlet to the heater tube. A process may include passing a hydrocarbon stream through the fired heater described herein during the course of operating a hydrocarbon conversion process.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: October 9, 2012
    Assignee: UOP LLC
    Inventor: Kenneth D. Peters
  • Publication number: 20120067774
    Abstract: Processes for increasing overall aromatics and xylenes yield in an aromatics complex are provided. A C8+ aromatics stream from an aromatics-rich reformate is separated into a C8 aromatics fraction and a C9+ aromatics fraction comprising higher alkyl group-substituted C9 and C10 aromatics. The C9+ aromatics fraction is separated into a lighter boiling, higher alkyl group-substituted C9 or C9/C10 aromatics fraction and a heavier boiling, C10+ or C11+ aromatics fraction. The lighter boiling, higher alkyl group-substituted C9 or C9/C10 aromatics fraction is isomerized to convert a portion of the higher alkyl group-substituted C9 or C9/C10 aromatics therein into methyl-enriched C9 aromatics or methyl-enriched C9/C10 aromatics. The methyl-enriched C9+ aromatics stream comprising the methyl-enriched C9+ aromatics stream or the methyl-enriched C9/C10 aromatics is transalkylated with a toluene-containing stream.
    Type: Application
    Filed: September 16, 2010
    Publication date: March 22, 2012
    Applicant: UOP LLC
    Inventors: Stanley J. Frey, Jason T. Corradi, Gregory Werba
  • Patent number: 8048290
    Abstract: The invention relates to a process for producing base oils, comprisings the steps where feedstock selected from ketones, aldehydes, alcohols, carboxylic acids, esters of carboxylic acids and anhydrides of carboxylic acids, alpha olefins, metal salts of carboxylic acids and corresponding sulphur compounds, corresponding nitrogen compounds and combinations thereof, is subjected to a condensation step and subsequently subjected to a combined hydrodefunctionalization and isomerization step.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: November 1, 2011
    Assignee: Neste Oil Oyj
    Inventors: Pekka Knuuttila, Eija Koivusalmi, Pekka Aalto, Rami Piilola
  • Patent number: 7981272
    Abstract: A process for reforming a hydrocarbon stream in a reforming unit can include passing a gas including a halogen-containing material from a product separation zone through an adsorption zone to remove at least some of the halogen-containing material before the gas enters a first reforming stage having at least one fixed bed reaction zone.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: July 19, 2011
    Assignee: UOP LLC
    Inventors: Gary A. Dziabis, Leon Yuan, David J. Fecteau
  • Patent number: 7967973
    Abstract: The invention relates to a process for producing a new type of high-quality hydrocarbon base oil of biological origin. The process of the invention comprises ketonisation, hydrodeoxygenation, and isomerization steps. Fatty acids and/or fatty acid esters based on a biological raw material are preferably used as the feedstock.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: June 28, 2011
    Assignee: Neste Oil Oyj
    Inventors: Jukka Myllyoja, Juha Jakkula, Pekka Aalto, Eija Koivusalmi, Johan-Fredrik Selin, Juha Moilanen
  • Publication number: 20110005971
    Abstract: The invention discloses a catalytic reforming system and a method thereof. The system comprises a heating device and a reaction device and is characterized in that the reaction device (2-1, 2-2) is connected with a high-pressure separator (4); the high-pressure separator (4) is connected with a stabilizer system (6); the lower part of the stabilizer system (6) is connected with an extraction system (8) through a pipeline; the extraction system (8) is connected with a raffinate oil cutting system (7) through a pipeline on one hand, the middle part of the raffinate oil cutting system (7) is connected with another reaction device (2-3, 2-4) through a pipeline and the heating device (1-3, 1-4); coal oil is directly recovered by the lower part of the raffinate oil cutting system (7) through a pipeline; and the other end of the third reaction device is connected with the high-pressure separator through a pipeline.
    Type: Application
    Filed: June 3, 2009
    Publication date: January 13, 2011
    Inventor: Ranfeng Ding
  • Patent number: 7850841
    Abstract: The invention relates to a process for producing high-quality hydrocarbon base oil particularly of biological origin. The process of the invention comprises aldol condensation, hydrodeoxygenation, and isomerization steps. Aldehydes and/or ketones, preferably of biological origin are used as the feedstock.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: December 14, 2010
    Assignee: Neste Oil Oyj
    Inventors: Eija Koivusalmi, Ilkka Kilpeläinen, Pirkko Karhunen, Jorma Matikainen
  • Publication number: 20100243521
    Abstract: One exemplary embodiment of the present invention can be a fired heater for a hydrocarbon conversion process. The fired heater includes inlet and outlet headers or manifolds, a set of heater tubes with each heater tube having an inlet and an outlet, at least one restriction orifice adjacent the inlet of at least one heater tube. The restriction orifice may be within the inlet manifold and adjacent the inlet of a heater tube, or between the inlet manifold and the inlet to the heater tube. A process may include passing a hydrocarbon stream through the fired heater described herein during the course of operating a hydrocarbon conversion process.
    Type: Application
    Filed: March 31, 2009
    Publication date: September 30, 2010
    Inventor: Kenneth D. Peters
  • Patent number: 7776207
    Abstract: A process for producing alkyl aromatic middle distillate fuels is described. The process includes (a) catalytically converting paraffinic naphtha to a composition containing benzene and olefins; (b) processing the olefin/benzene composition in an aromatic alkylation reactor to produce alkyl-benzene components (c) separating the alkyl aromatics from the unconverted naphtha; and (d) optionally recycling the unconverted paraffinic naphtha to the dehydrogenation/amortization reactor of step a.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: August 17, 2010
    Assignee: Syntroleum Corporation
    Inventors: Ramin Abhari, Paul Ahner
  • Patent number: 7740751
    Abstract: One exemplary embodiment of the present invention can be a hydrocarbon conversion process. The process may include passing a hydrocarbon stream through at least one heater including at least one burner, a radiant section, and a convection section. Generally, the stream passes through the radiant section and then through the convection section before exiting the heater. Desirably, the hydrocarbon stream includes, in percent or parts by weight based on the total weight of hydrocarbons in the stream: C4 or less: less than about 0.5%, sulfur or sulfur containing compounds: less than about 1 ppm, and nitrogen or nitrogen containing compounds: less than about 1 ppm. Preferably, the sulfur or sulfur containing compounds and the nitrogen or nitrogen containing compounds are measured as, respectively, elemental sulfur or nitrogen.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: June 22, 2010
    Assignee: UOP LLC
    Inventor: Kenneth D. Peters
  • Patent number: 7736491
    Abstract: A process for the fluid catalytic cracking of mixed hydrocarbon feeds from different sources is described, such as feeds A and B of different crackability, the process being especially directed to obtaining light fractions such as LPG and comprising injecting feed A in the base of the riser reactive section and feed B, of lower crackability, at a height between 10% and 80% of the riser, with feed B comprising between 5% and 50% of the total processed feed. The process requires that the feeds present differences in the contaminant content, improved dispersion of feeds A and B and feed B injection temperature same or higher than that of feed A.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: June 15, 2010
    Assignee: Petroleo Brasileiro S.A. - Petrobras
    Inventors: Claudia Maria de Lacerda Alvarenga Baptista, Henrique Soares Cerqueira, Emanuel Freire Sandes
  • Patent number: 7674363
    Abstract: Process to prepare a haze free base oil having a cloud point of below 0° C. and a kinematic viscosity at 100° C. of greater than 10 cSt by performing the following steps: (a) hydroisomerisation of a Fischer-Tropsch synthesis product, (b) isolating one or more fuel products and a distillation residue, (c) reducing the wax content of the residue by contacting the feed with a hydroisomerization catalyst under hydroisomerization conditions, and (d) solvent dewaxing the product of step (c) to obtain the haze free base oil.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: March 9, 2010
    Assignee: Shell Oil Company
    Inventors: Nicholas James Adams, Gilbert Robert Bernard Germaine
  • Patent number: 7638665
    Abstract: The benzene content in a gasoline pool is reduced by a process that hydrogenates a benzene-containing isomerization zone feedstream. The additional cyclic hydrocarbons produced by the saturation of benzene can be processed in the isomerization zone for ring opening to increase the available paraffinic feedstock or the isomerization zone can be operated to pass the cyclic hydrocarbons through to a product recovery section. The isomerization zone feedstream is treated to remove contaminants and dried before entering the hydrogenation zone.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: December 29, 2009
    Assignee: UOP LLC
    Inventor: David J. Shecterle
  • Patent number: 7550215
    Abstract: Low-energy, low-capital hydrogen production is disclosed. A reforming exchanger 14 is placed in parallel with an autothermal reformer (ATR) 10 to which are supplied a preheated steam-hydrocarbon mixture. An air-steam mixture is supplied to the burner/mixer of the ATR 10 to obtain a syngas effluent at 650°-1050° C. The effluent from the ATR is used to heat the reforming exchanger, and combined reformer effluent is shift converted and separated into a mixed gas stream and a hydrogen-rich product stream. High capital cost equipment such as steam-methane reformer and air separation plant are not required.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: June 23, 2009
    Assignee: Kellogg Brown & Root LLC
    Inventors: Avinash Malhotra, James Hanlan Gosnell
  • Patent number: 7538063
    Abstract: Bismuth- and phosphorus-containing naphtha reforming catalysts, methods of making such catalysts, and a naphtha reforming process using such catalysts.
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: May 26, 2009
    Assignee: Shell Oil Company
    Inventor: Peter Tanev Tanev
  • Patent number: 7534925
    Abstract: The benzene content in a gasoline pool is reduced by a process that hydrogenates a benzene-containing isomerization zone feedstream. The additional cyclic hydrocarbons produced by the saturation of benzene can be processed in the isomerization zone for ring opening to increase the available paraffinic feedstock or the isomerization zone can be operated to pass the cyclic hydrocarbons through to a product recovery section. The isomerization zone feedstream is treated to remove contaminants and dried before entering the hydrogenation zone.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: May 19, 2009
    Assignee: UOP LLC
    Inventor: David J. Shecterle
  • Patent number: 7531704
    Abstract: The benzene content in a gasoline pool is reduced by a process that hydrogenates a benzene-containing isomerization zone feedstream. The additional cyclic hydrocarbons produced by the saturation of benzene can be processed in the isomerization zone for ring opening to increase the available paraffinic feedstock or the isomerization zone can be operated to pass the cyclic hydrocarbons through to a product recovery section. The isomerization zone feedstream is treated to remove contaminants and dried before entering the hydrogenation zone.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: May 12, 2009
    Assignee: UOP LLC
    Inventor: David J. Shecterle
  • Patent number: 7479217
    Abstract: The invention concerns a process for treating a hydrocarbon feed comprising a series of a first upstream process for hydrocarbon hydroconversion comprising at least one reaction chamber, the reaction or reactions occurring inside said chambers and employing at least one solid phase, at least one liquid phase and at least one gas phase, and a second downstream steam reforming process comprising at least one reaction chamber, characterized in that the said upstream process is carried out in a “slurry” and/or an ebullated bed mode and in that the downstream process comprises a first step for at least partial conversion of hydrocarbons heavier than methane into methane, termed the pre-reforming step, and in that the reaction or reactions occurring inside the chambers of the downstream stream reforming process enables the production of a reagent, namely hydrogen, which is necessary for the reactions in the first upstream process.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: January 20, 2009
    Assignee: Institut Francais du Petrole
    Inventors: Mathieu Pinault, Thierry Gauthier, Stéphane Kressmann, Arnault Selmen
  • Patent number: 7435329
    Abstract: A reforming and isomerization process has been developed. A reforming feedstream is charged to a reforming zone containing a reforming catalyst and operating at reforming conditions to generate a reforming zone effluent. Hydrogen and an isomerization feedstream is charged into an isomerization zone to contact an isomerization catalyst at isomerization conditions to increase the branching of the hydrocarbons. The isomerization catalyst is a solid acid catalyst comprising a support comprising a sulfated oxide or hydroxide of at least an element of Group IVB, a first component being at least one lanthanide series element, mixtures thereof, or yttrium, and a second component being a platinum group metal or mixtures thereof. The reforming zone effluent and the isomerization zone effluent are each separated to form a light ends stream and a product stream. The light ends streams are combined for processing in a net gas re-contacting zone.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: October 14, 2008
    Assignee: UOP LLC
    Inventors: Douglas A. Nafis, Gregory F. Maher, Lynn H. Rice, William D. Schlueter, Ralph D. Gillespie, Michelle J. Cohn
  • Patent number: 7410565
    Abstract: The chloride retention of an alumina catalyst over the course of operation and regeneration can be controlled and stabilized by incorporating a small amount of a component selected from the group including phosphorus, boron, titanium, silicon, and zirconium. Steam treatments have been used to simulate commercial hydrothermal stability and a small amount of the stabilizer component has been discovered which balances chloride retention. Moreover, in a multi-catalyst hydrocarbon conversion process, such as the two-step reforming of naphtha, it has been discovered that proper selection of a catalyst having lower chloride retention in combination with another catalyst having higher chloride retention results in a process with increased yield and/or higher octane gasoline.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: August 12, 2008
    Assignee: UOP LLC
    Inventors: Mark P. Lapinski, Leon Yuan, Mark D. Moser
  • Publication number: 20080110801
    Abstract: An exemplary process can include passing a hydrocarbon stream through a reforming unit. The reforming unit may include a heater, which in turn generally includes a convection section and a radiant section, and a plurality of reforming reaction zones. Generally, the hydrocarbon stream is heated in the convection section for reacting in one of the reforming reaction zones to which the hydrocarbon stream is sent and the hydrocarbon stream is heated in the radiant section of the heater for reacting in the other reforming reaction zone to which the hydrocarbon stream is sent.
    Type: Application
    Filed: November 9, 2006
    Publication date: May 15, 2008
    Inventors: Leon Yuan, David J. Fecteau, William M. Hartman, William D. Schlueter
  • Patent number: 7351325
    Abstract: A process and apparatus for catalytic reforming of hydrocarbons wherein the effluent stream from the first and/or second reactor of a reforming train with several reactors in series is cooled in a multistage process to remove aromatic compounds in the reacting medium prior to being reheated and returned to subsequent reactors for additional reaction to occur. The partial removal of aromatic compounds enhances the driving force for the conversion of paraffins and naphthenes by making the equilibrium more favorable to such conversion. The removal of aromatic compounds reduces the size of downstream process equipment thereby reducing capital costs and lowering energy usage. It is possible to add additional feed streams to reactors downstream of the intermediate reactor effluent cooling step thereby making the process unit capable of processing more feedstock to produce more product.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: April 1, 2008
    Assignee: Saudi Arabian Oil Company
    Inventor: Emigdio Jesus Salmon
  • Patent number: 7285205
    Abstract: In a regenerative reforming facility using a series of moving beds, a direct supply of regenerated catalyst, optionally reduced is passed into at least two of the reactors of the series. Spent catalysts from different reactors are passed into a common mixing apparatus so as to provide a homogeneous degree of coke on the spent catalysts which are thereafter passed to a regenerator. The feedstock and the intermediate effluents continue to circulate in succession relative to the reactors. The invention makes it possible in particular to reduce the operating pressure of the units to less than 0.2 MPa.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: October 23, 2007
    Assignee: Institut Francias du Petrole
    Inventors: Eric Sanchez, Dominique Casanave
  • Patent number: 7220349
    Abstract: The invention concerns a process for producing middle distillates from an effluent produced by a Fischer-Tropsch unit, comprising optional fractionation to obtain at least one heavy fraction with an initial boiling point in the range 120-200° C., said heavy fraction or said effluent optionally being hydrotreated, then bringing it into contact with a first amorphous hydrocracking/hydroisomerization catalyst that contains at least one noble group VIII metal, the effluent obtained is distilled, then the residual fraction boiling above the middle distillates and/or a portion of the middle distillates is brought into contact with a second amorphous hydrocracking/hydroisomerization catalyst containing at least one noble group VIII metal. The invention also concerns a unit.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: May 22, 2007
    Assignees: Institut Francais du Petrole, AGIP Petroli S.p.A., ENI S.p.A., EniTecnolgie SpA
    Inventors: Eric Benazzi, Christophe Gueret
  • Patent number: 7220505
    Abstract: Low-energy, low-capital hydrogen production is disclosed. A reforming exchanger 14 is placed in parallel with an autothermal reformer (ATR) 10 to which are supplied a preheated steam-hydrocarbon mixture. An air-steam mixture is supplied to the burner/mixer of the ATR 10 to obtain a syngas effluent at 650°-1050° C. The effluent from the ATR is used to heat the reforming exchanger, and combined reformer effluent is shift converted and separated into a mixed gas stream and a hydrogen-rich product stream. High capital cost equipment such as steam-methane reformer and air separation plant are not required.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: May 22, 2007
    Assignee: Kellogg Brown & Root LLC
    Inventors: Avinash Malhotra, James Hanlan Gosnell
  • Patent number: 7217303
    Abstract: The present invention provides an improvement in the process of producing hydrogen from hydrocarbon-containing streams. A cyclic reforming process, referred to as pressure swing reforming, provides an efficient means for producing a hydrogen containing synthesis gas for fuel cell applications. Pressure swing reforming may be integrated with shift reactions, preferential oxidation, and membrane separation, achieving thermal and material efficiencies relative to conventional hydrogen production. In one embodiment, at least some synthesis gas which is first produced in the pressure swing reforming process is combusted with air to provide the heat for the regeneration step of the pressure swing reforming process.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: May 15, 2007
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Frank Hershkowitz, Paul J. Berlowitz, Randall D. Partridge
  • Patent number: 7067052
    Abstract: A process for reforming a hydrocarbon feed containing precursors of ethylbenzene, e.g., C8 isoalkane and/or C8 isoalkene precursors of ethylbenzene, that results in the formation of reduced amounts of ethylbenzene. The process is carried out in a catalytic reforming unit comprised of a plurality of operatively connected reactors comprising at least one lead reforming reactor and a tail reforming reactor. The process is carried out by reforming the feed in at least one lead reactor which contains a first reforming catalyst and a catalyst effective for converting ethylbenzene and further reforming the product of the lead reactor in the tail reactor that contains a second reforming catalyst.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: June 27, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jain-Kai Hung, Thomas H. Colle, Xiaobing Feng, Gary D. Mohr, Krishna Kulai Rao
  • Patent number: H2244
    Abstract: A reforming process in which a hydrocarbon feed containing aliphatic hydrocarbons is converted to a hydrocarbon product comprising an increased proportion of aromatics by passage over a reforming catalyst in a sequence of moving bed reactors operating under reforming conditions including moderate hydrogen pressure. The process is applicable when a former fixed moving bed reformer has been converted to moving bed reactor operation with the recycle and other ancillary equipment retained so that moderate pressure (hydrogen partial pressure at least 11 barg) is required, usually with a catalysts such as Pt/Re which tend to exhibit excessive hydrogenolysis activity in moving bed service. The recycle hydrogen stream is split with a portion going to at least one reactor subsequent to the first reactor.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: August 3, 2010
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Russell T. Clay, Stuart S. Goldstein