Catalyst In Multiple Stages Patents (Class 208/74)
  • Patent number: 10646862
    Abstract: Systems and methods are provided for catalyst regeneration using a stoichiometric amount or less air for coke combustion.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: May 12, 2020
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Suriyanarayanan Rajagopalan, Mohsen N. Harandi
  • Patent number: 10633606
    Abstract: The present application generally relates to the introduction of a renewable fuel oil as a feedstock into refinery systems or field upgrading equipment. For example, the present application is directed to methods of introducing a liquid thermally produced from biomass into a petroleum conversion unit; for example, a refinery fluid catalytic cracker (FCC), a coker, a field upgrader system, a hydrocracker, and/or hydrotreating unit; for co-processing with petroleum fractions, petroleum fraction reactants, and/or petroleum fraction feedstocks and the products, e.g., fuels, and uses and value of the products resulting therefrom.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: April 28, 2020
    Assignee: Ensyn Renewables, Inc.
    Inventors: Barry A. Freel, Robert G. Graham
  • Patent number: 10344238
    Abstract: An oil-coal co-hydrotreating processing includes the following steps: pulverized coal, vacuum residue and recycle oil are mixed to prepare coal slurry. After mixed with hydrogen, catalyst and additive, oil-coal slurry is preheated into a slurry bed reactor with high reacting pressure for thermal cracking and hydrogenation reaction. After reaction, all the products go into the hot high pressure separator for separation of solid from the bottom and gas from the top. The gas obtained goes into the fixed bed reactor for further hydrocracking or refining, and the distillate obtained enter the fractionating tower. The vacuum gas oil from the bottom of fractionating tower is taken as recycle oil piped to the oil-coal slurry mixing device as solvent.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: July 9, 2019
    Assignee: CATECH TECHNOLOGY CO., LTD.
    Inventor: Suan Li
  • Patent number: 9650312
    Abstract: A process for upgrading residuum hydrocarbons is disclosed. The process may include: contacting a residuum hydrocarbon fraction and hydrogen with a first hydroconversion catalyst in a first ebullated bed hydroconversion reactor system; recovering a first effluent from the first ebullated bed hydroconversion reactor system; solvent deasphalting a vacuum residuum fraction to produce a deasphalted oil fraction and an asphalt fraction; contacting the deasphalted oil fraction and hydrogen with a second hydroconversion catalyst in a second hydroconversion reactor system; recovering a second effluent from the second hydroconversion reactor system; and fractionating the first effluent from the first ebullated bed hydroconversion reactor system and the second effluent from the second hydroconversion reactor system to recover one or more hydrocarbon fractions and the vacuum residuum fraction in a common fractionation system.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: May 16, 2017
    Assignee: Lummus Technology Inc.
    Inventors: Mario C. Baldassari, Ujjal K. Mukherjee, Ann-Marie Olsen, Marvin I. Greene
  • Patent number: 9446997
    Abstract: Provided is a method for producing aromatic hydrocarbons, by which a feedstock containing a hydrogenation-treated oil of a thermally cracked heavy oil obtainable from an ethylene production apparatus is brought into contact with a catalyst for monocyclic aromatic hydrocarbon production containing a crystalline aluminosilicate, and thereby aromatic hydrocarbons are produced. A raw material having an end point of the distillation characteristics of 400° C. or lower is used as the feedstock. The contact between the feedstock and the catalyst for monocyclic aromatic hydrocarbon production is carried out at a pressure of 0.1 MPaG to 1.5 MPaG.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: September 20, 2016
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Shinichiro Yanagawa, Ryoji Ida, Masahide Kobayashi
  • Patent number: 9440894
    Abstract: A process for upgrading residuum hydrocarbons is disclosed. The process may include: contacting a residuum hydrocarbon fraction and hydrogen with a first hydroconversion catalyst in a first ebullated bed hydroconversion reactor system; recovering a first effluent from the first ebullated bed hydroconversion reactor system; solvent deasphalting a vacuum residuum fraction to produce a deasphalted oil fraction and an asphalt fraction; contacting the deasphalted oil fraction and hydrogen with a second hydroconversion catalyst in a second hydroconversion reactor system; recovering a second effluent from the second hydroconversion reactor system; and fractionating the first effluent from the first ebullated bed hydroconversion reactor system and the second effluent from the second hydroconversion reactor system to recover one or more hydrocarbon fractions and the vacuum residuum fraction in a common fractionation system.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: September 13, 2016
    Assignee: Lummus Technology Inc.
    Inventors: Mario C. Baldassari, Ujjal K. Mukherjee, Ann-Marie Olsen, Marvin I. Greene
  • Patent number: 9434892
    Abstract: A two stage Fluid Catalytic Cracking process and an apparatus for simultaneous production of light olefins such as ethylene and propylene and middle distillate range hydrocarbons, wherein a first flow reactor, preferably a downer and a second flow reactor, preferably a riser are operating at varying reaction severities using different catalyst systems with the regenerated catalyst entering the reactors inlet through independent regenerators. Mild cracking of the fresh feedstock is carried out in the first flow reactor of short residence time and the effluent of first flow reactor is separated in an intermediate separator/fractionator followed by re-cracking of the C4 hydrocarbons and naphtha range hydrocarbons, preferably C5-150° C. from the second product separation section and unconverted hydrocarbons (370° C.+) of first flow reactor, in the second flow reactor at higher severity employing different catalyst system.
    Type: Grant
    Filed: July 4, 2011
    Date of Patent: September 6, 2016
    Assignee: INDIAN OIL CORPORATION LTD.
    Inventors: Ponoly Ramachandran Pradeep, Sadhullah Mukthiyar, Gadari Saidulu, Debasis Bhattacharyya, Vetterkunnel Kumaran Satheesh
  • Patent number: 9234143
    Abstract: The present invention discloses catalytic cracking apparatus and process, which are useful for catalytic cracking of heavy oils with a high heavy oil conversion, a high propylene yield and low dry gas and coke yields.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: January 12, 2016
    Assignee: CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Chaogang Xie, Yongcan Gao, Weimin Lu, Jun Long, Yan Cui, Jiushun Zhang, Yinan Yang, Jianguo Ma, Zheng Li, Nan Jiang
  • Patent number: 9228138
    Abstract: A process and apparatus for recovering cycle oil from FCC CSO is described. By feeding the additional cycle oil to a hydrocracking unit additional diesel, naphtha and petrochemical feedstock may be obtained. The additional cycle oil is obtained by vacuum separation of the CSO. The described process and apparatus can provide additional recovery for a refiner.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: January 5, 2016
    Assignee: UOP LLC
    Inventors: Jibreel A. Qafisheh, Jill A. Bonucci, Xin X. Zhu, Boyd E. Cabanaw
  • Patent number: 9147901
    Abstract: A fuel cell system (1) with a fuel cell unit (2) including at least one fuel cell (3), as well as an anode gas feed (11) including a reformer (12). A reduced deposit of hydrocarbons on an anode (5) of the fuel cell (3), especially in case of a cold start of the fuel cell system (1), is achieved when the anode gas feed (11) has a reduction device (14), which is arranged between the reformer (12) and the anode (5).
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: September 29, 2015
    Assignee: Eberspächer Climate Control Systems GmbH & Co. KG
    Inventors: Karsten Reiners, Christian Weiss, Andreas Kaupert
  • Patent number: 9144780
    Abstract: A reactor design and configuration and a process for the catalytic dehydration of propanol to propylene where the reactor train is comprised of a multi-stage single reactor vessel or multiple reactor vessels wherein each stage and/or vessel has different length, internal diameter, and volume than the other stages and/or vessels and in addition the stages and/or reactor vessels are connected in series or in parallel arrangement, preferably used with an improved means of introducing the propanol feedstock and a heat carrying inert gas to the improved reactor train.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: September 29, 2015
    Assignee: Petron Scientech, Inc
    Inventors: Hassan Taheri, Yogendra Sarin, Brian Ozero
  • Patent number: 9132415
    Abstract: A method of upgrading heavy oil in which the heavy oil is preheated to above a boiling point of water to remove water as steam and lighter fractions as vapors. The heavy oil passes downwardly through a series of sequential horizontal heat gradients in a temperature gradient reactor. A temperature of each sequential heat gradient progressively increases so that lighter fractions of the heavy oil vaporize with minimal cracking and heavier heavy oil fractions continue to fall by force of gravity downwards. As they pass through further sequential heat gradients of progressively increasing temperature, they tend to crack into lighter fractions in the presence of nascent hydrogen. Coke, formed from heavier heavy oil fractions generated and deposited on a fluidized catalytic bed a bottom of the temperature gradient reactor, is fluidized with superheated steam. The superheated steam generates the nascent hydrogen required to promote hydrogen reactions by indirect heated steam reforming and water-gas shift reactions.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: September 15, 2015
    Assignees: 1304338 Alberta Ltd., 1304342 Alberta Ltd.
    Inventors: Jose Lourenco, MacKenzie Millar
  • Publication number: 20150136647
    Abstract: Methods and systems. For producing diesel arc provided. The method for producing diesel can include cracking a first hydrocarbon feed in a first riser under first cracking conditions to provide a first effluent containing a first light cycle oil, a heavy cycle oil, and a first bottoms and Fractionating at least a portion of the first effluent to separate the first bottoms and the heavy cycle oil from the first light cycle oil. The method can include cracking the separated first bottoms in a second riser under second cracking conditions to produce a second effluent containing a second light cycle oil and a second bottoms. The method can also include cracking the separated heavy cycle oil in the first riser under third cracking conditions to provide a third effluent and mixing the third effluent with the first hydrocarbon feed to provide the first cracking conditions.
    Type: Application
    Filed: November 21, 2013
    Publication date: May 21, 2015
    Applicant: KELLOGG BROWN & ROOT LLC
    Inventors: Gautham KRISHNAIAH, Yongchao Li, Yonglin Yang, Jesse Henry Williams, IV
  • Patent number: 8920630
    Abstract: A system comprising a riser reactor comprising a gas oil feedstock and a first catalyst under catalytic cracking conditions to yield a riser reactor product comprising a cracked gas oil product and a first used catalyst; a intermediate reactor comprising at least a portion of the cracked gas oil product and a second catalyst under high severity conditions to yield a cracked intermediate reactor product and a second used catalyst; wherein the intermediate reactor feedstock comprises at least one of a fatty acid and a fatty acid ester.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: December 30, 2014
    Assignee: Shell Oil Company
    Inventors: George A. Hadjigeorge, Weijian Mo, Colin John Schaverien
  • Patent number: 8888991
    Abstract: Heavy gas oil components, coking process recycle, and heavier hydrocarbons in the delayed coking process are cracked in the coking vessel by injecting a catalytic additive into the vapors above the gas/liquid-solid interface in the coke drum during the coking cycle. The additive comprises cracking catalyst(s) and quenching agent(s), alone or in combination with seeding agent(s), excess reactant(s), carrier fluid(s), or any combination thereof to modify reaction kinetics to preferentially crack these components. The quenching effect of the additive can be effectively used to condense the highest boiling point compounds of the traditional recycle onto the catalyst(s), thereby focusing the catalyst exposure to these target reactants. Exemplary embodiments of the present invention can also provide methods to (1) reduce coke production, (2) reduce fuel gas production, and (3) increase liquids production.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: November 18, 2014
    Inventor: Roger G. Etter
  • Patent number: 8778170
    Abstract: A process for producing light olefins and aromatics, which comprises reacting a feedstock with a catalytic cracking catalyst in at least two reaction zones, wherein the reaction temperature of at least one reaction zone downstream of the first reaction zone is higher than that of the first reaction zone and its weight hourly space velocity is lower than that of the first reaction zone. The spent catalyst is separated, from the reaction product vapor, regenerated, and then returned to the reactor. The reaction product vapor is separated to obtain the desired products, light olefins and aromatics. This process efficiently produces light olefins such as propylene, ethylene, etc from heavy feedstocks, wherein the yield of propylene exceeds 20% by weight, and produces aromatics such as toluene, xylene, etc at the same time.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: July 15, 2014
    Assignees: China Petroleum Chemical Corporation, Research Institute of Petroleum Processing Sinopec
    Inventors: Jun Long, Zhijian Da, Dadong Li, Xieqing Wang, Xingtian Shu, Jiushun Zhang, Hong Nie, Chaogang Xie, Zhigang Zhang, Wei Wang
  • Publication number: 20140034551
    Abstract: A process is described for maximizing the FCC middle distillates comprising the use of two different converters, operating in a coordinated manner that seeks to maximize the production of LCO for diesel, generating a specified gasoline and reducing fuel oil production. Converter “A” operates with a low contact time in the riser, of 0.2 to 1.5 sec. (preferably from 0.5 to 1.0 sec.) making a higher reaction temperature possible even at low severity, from 510° C. to 560° C. (preferably from 530° C. to 550° C.) and with a catalyst suitable to the maximization of LCO. Converter “B” possesses a high activity catalytic system, suited to cracking naphtha and DO generated in the first converter. Preferably, converter “B” has two separate risers, allowing the reaction temperatures of each to be adjusted independently according to the range most recommended for maximizing the cracking of each of the streams: 530° C. to 560° C. for the DO riser and 540° C. to 600° C. for the naphtha riser.
    Type: Application
    Filed: April 15, 2011
    Publication date: February 6, 2014
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Emanuel Freire Sandes, Leandro Morais Silva, William Richard Gilbert, Jose Geraldo Furtado Ramos
  • Patent number: 8551324
    Abstract: The present invention describes a process for the production of gasoline in a fluid catalytic cracking unit having at least one principal reactor operating using feeds with a low Conradson Carbon and a high hydrogen content, said process comprising recycling a coking cut either to a side chamber branching off the stripper or within the stripper itself by means of a tubular vessel within said stripper.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: October 8, 2013
    Assignee: IFP Energies nouvelles
    Inventors: Frederic Feugnet, Romain Roux
  • Publication number: 20130248420
    Abstract: One exemplary embodiment can be a process for fluid catalytic cracking. The process can include sending a first catalyst from a first riser reactor and a second catalyst from a second riser reactor to a regeneration vessel having a first stage and a second stage. The first catalyst may be sent to the first stage and the second catalyst may be sent to the second stage of the regeneration vessel. Generally, the first stage is positioned above the second stage.
    Type: Application
    Filed: March 21, 2012
    Publication date: September 26, 2013
    Applicant: UOP, LLC
    Inventor: Paolo Palmas
  • Patent number: 8394259
    Abstract: One exemplary embodiment can be a fluid catalytic cracking unit. The fluid catalytic cracking unit can include a first riser, a second riser, and a disengagement zone. The first riser can be adapted to receive a first feed terminating at a first reaction vessel having a first volume. The second riser may be adapted to receive a second feed terminating at a second reaction vessel having a second volume. Generally, the first volume is greater than the second volume. What is more, the disengagement zone can be for receiving a first mixture including at least one catalyst and one or more products from the first reaction vessel, and a second mixture including at least one catalyst and one or more products from the second reaction vessel. Typically, the first mixture is isolated from the second mixture.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: March 12, 2013
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Robert L. Mehlberg
  • Publication number: 20130056393
    Abstract: The invention provides for a process and apparatus for simultaneous conversion of lighter and heavier hydrocarbon feedstocks into improved yields of light olefins in the range of C2 to C4, liquid aromatics in the range C6 to C8 mainly benzene, toluene, xylene and ethyl benzene and other useful products employing at least two different reactors operated in series with respect to catalyst flow and parallel with respect to feed flow under different regimes and process conditions with same catalyst system.
    Type: Application
    Filed: March 30, 2011
    Publication date: March 7, 2013
    Applicant: INDIAN OIL CORPORATION LIMITED
    Inventors: Saravanan Subramani, Debasis Bhattacharyya, Reshmi Manna, Satyen Kumar Das, Tridib Sarkar, Santanam Rajagopal
  • Patent number: 8372265
    Abstract: Undesirable gas oil components are selectively cracked or coked in a coking vessel by injecting an additive into the vapors of traditional coking processes in the coking vessel prior to fractionation. The additive contains catalyst(s), seeding agent(s), excess reactant(s), quenching agent(s), carrier(s), or any combination thereof to modify reaction kinetics to preferentially crack or coke these undesirable components that typically have a high propensity to coke. Exemplary embodiments of the present invention also provide methods to control the (1) coke crystalline structure and (2) the quantity and quality of volatile combustible materials (VCMs) in the resulting coke. That is, by varying the quantity and quality of the catalyst, seeding agent, and/or excess reactant the process may affect the quality and quantity of the coke produced, particularly with respect to the crystalline structure (or morphology) of the coke and the quantity & quality of the VCMs in the coke.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: February 12, 2013
    Inventor: Roger G. Etter
  • Patent number: 8354018
    Abstract: A process is disclosed for catalytically converting two feed streams. The feed to a first catalytic reactor may be contacted with product from a second catalytic reactor to effect heat exchange between the two streams and to transfer catalyst from the product stream to the feed stream. The feed to the second catalytic reactor may be a portion of the product from the first catalytic reactor.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: January 15, 2013
    Assignee: UOP LLC
    Inventors: Laura E. Leonard, Jibreel A. Qafisheh, Robert L. Mehlberg
  • Publication number: 20130001129
    Abstract: A catalytic conversion process for increasing the cetane number barrel of diesel, in which contacting the feedstock oil with a catalytic cracking catalyst having a relatively homogeneous activity containing mainly the large pore zeolites in a catalytic conversion reactor, wherein the reaction temperature, residence time of oil vapors and weight ratio of the catalyst/feedstock oil are sufficient to obtain a reaction product containing from about 12 to about 60% by weight of a fluid catalytic cracking gas oil relative to the weight of the feedstock oil and containing a diesel; the reaction temperature ranges from about 420° C. to about 550° C.; the residence time of oil vapors ranges from about 0.1 to about 5 seconds; the weight ratio of the catalytic cracking catalyst/feedstock oil is about 1-about 10. The fluid catalytic cracking gas oil is fed into other unit for further treatment or is fed back to the initial catalytic conversion reactor.
    Type: Application
    Filed: October 20, 2010
    Publication date: January 3, 2013
    Applicants: Research Institute of Petroleum Processing, Sinopec, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Youhao Xu, Jianhong Gong, Congli Cheng, Shouye Cui, Zhihai Hu, Yun Chen
  • Publication number: 20120222991
    Abstract: Novel catalytic compositions for cracking of crude oil fractions are disclosed. The catalytic compositions comprise a basic material. When used in a cracking process, preferably a FCC process, the resulting LCO and HCO fractions have desirably low aromatics levels. Further disclosed is a one-stage FCC process using the catalytic composition of the invention. Also disclosed is a two-stage FCC process for maximizing the LCO yield.
    Type: Application
    Filed: April 2, 2012
    Publication date: September 6, 2012
    Applicant: ALBEMARLE NETHERLANDS B.V.
    Inventors: PAUL O'CONNOR, KING YEN YUNG, AVELINO CORMA CANOS, ELBERT ARJAN DE GRAAF, ERJA PÄIVI HELENA RAUTIAINEN
  • Patent number: 8206574
    Abstract: A reactor process added to a coking process to modify the quantity or yield of a coking process product and/or modify certain characteristics or properties of coking process products.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: June 26, 2012
    Inventor: Roger G. Etter
  • Patent number: 8137631
    Abstract: One exemplary embodiment can be a fluid catalytic cracking unit. The fluid catalytic cracking unit can include a first riser, a second riser, and a disengagement zone. The first riser can be adapted to receive a first feed terminating at a first reaction vessel having a first volume. The second riser may be adapted to receive a second feed terminating at a second reaction vessel having a second volume. Generally, the first volume is greater than the second volume. What is more, the disengagement zone can be for receiving a first mixture including at least one catalyst and one or more products from the first reaction vessel, and a second mixture including at least one catalyst and one or more products from the second reaction vessel. Typically, the first mixture is isolated from the second mixture.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: March 20, 2012
    Assignee: UOP LLC
    Inventors: Paolo Palmas, Robert L. Mehlberg
  • Patent number: 8076525
    Abstract: Process for the preparation of C3 and C4 olefins and gasoline by: (a) contacting in a fluidised bed reactor a light hydrocarbon feedstock with a first catalyst inventory comprising a medium pore size zeolite catalyst, wherein the first catalyst inventory is a fresh catalyst inventory; (b) combining at least part of the catalyst inventory as used in step (a) with one or more catalyst streams to form a second catalyst inventory comprising a medium pore size zeolite catalyst and a large pore size zeolite catalyst; (c) contacting a hydrocarbon feedstock with the second catalyst inventory in a reactor riser to form cracked products.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: December 13, 2011
    Assignee: Shell Oil Company
    Inventors: George A. Hadjigeorge, Colin John Schaverien, Nicolaas Wilhelmus Joseph Waij
  • Publication number: 20110108458
    Abstract: A process is disclosed for catalytically converting two feed streams. The feed to a first catalytic reactor may be contacted with product from a second catalytic reactor to effect heat exchange between the two streams and to transfer catalyst from the product stream to the feed stream. The feed to the second catalytic reactor may be a portion of the product from the first catalytic reactor.
    Type: Application
    Filed: November 9, 2009
    Publication date: May 12, 2011
    Applicant: UOP LLC
    Inventors: Laura E. Leonard, Jibreel A. Qafisheh, Robert L. Mehlberg
  • Publication number: 20100324232
    Abstract: A system comprising a riser reactor comprising a gas oil feedstock and a first catalyst under catalytic cracking conditions to yield a riser reactor product comprising a cracked gas oil product and a first used catalyst, a intermediate reactor comprising at least a portion of the cracked gas oil product and a second catalyst under high severity conditions to yield a cracked gasoline product and a second used catalyst, and a recycle conduit to send at least a portion of the cracked gas oil product to the riser reactor.
    Type: Application
    Filed: October 8, 2008
    Publication date: December 23, 2010
    Inventors: Weijian Mo, William Cross Glenn, George A. Hadjigeorge, Wallace Phelps Wilkins
  • Patent number: 7803265
    Abstract: A process is disclosed for converting distillate to gasoline-range hydrocarbons using a two-stage catalyst system including a first catalyst containing platinum, palladium, or platinum and palladium, and an acidic support, and a second catalyst containing iridium and an inorganic oxide support, and optionally nickel.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: September 28, 2010
    Assignee: ConocoPhillips Company
    Inventors: Tushar V. Choudhary, Paul F. Meier, Edward L. Sughrue, II, Walter E. Alvarez
  • Publication number: 20100236980
    Abstract: One exemplary embodiment can be a process for fluid catalytic cracking. The process can include withdrawing a catalyst from a reaction vessel to replace a catalyst inventory over a period of about 10- about 35 days for maximizing propylene yield.
    Type: Application
    Filed: March 20, 2009
    Publication date: September 23, 2010
    Inventors: Lawrence L. Upson, Brian W. Hedrick, Keith Allen Couch
  • Publication number: 20100163455
    Abstract: A system comprising a riser reactor comprising a gas oil feedstock and a first catalyst under catalytic cracking conditions to yield a riser reactor product comprising a cracked gas oil product and a first used catalyst; a intermediate reactor comprising at least a portion of the cracked gas oil product and a second catalyst under high severity conditions to yield a cracked intermediate reactor product and a second used catalyst; wherein the intermediate reactor feedstock comprises at least one of a fatty acid and a fatty acid ester.
    Type: Application
    Filed: April 10, 2008
    Publication date: July 1, 2010
    Inventors: George A. Hadjigeorge, Weijian Mo, Colin John Schaverien
  • 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: 7692057
    Abstract: The present invention provides a process for producing lower olefins by catalytic cracking a feedstock comprising an olefins-enriched mixture containing C4 or higher olefins and optionally an organic oxygenate compound. The technical problem mainly addressed in the present invention is to overcome the defects presented in the prior art including low yield and selectivity of lower olefins as the target products, and short regeneration period of catalyst.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: April 6, 2010
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology Sinopec
    Inventors: Zaiku Xie, Juntao Liu, Weimin Yang, Siqing Zhong, Yanhui Yuan, Huiming Zhang
  • Patent number: 7584789
    Abstract: A method for producing a crude product is disclosed. Formation fluid is produced from a subsurface in situ heat treatment process. The formation fluid is separated to produce a liquid stream and a first gas stream. The first gas stream includes olefins. The liquid stream is fractionated to produce one or more crude products. At least one of the crude products has a boiling range distribution from 38° C. and 343° C. as determined by ASTM Method D5307. The crude product having the boiling range distribution from 38° C. and 343° C. is catalytically cracked to produce one or more additional crude products. At least one of the additional crude products is a second gas stream. The second gas stream has a boiling point of at most 38° C. at 0.101 MPa.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: September 8, 2009
    Assignee: Shell Oil Company
    Inventors: Weijian Mo, Augustinus Wilhelmus Maria Roes, Vijay Nair
  • Patent number: 7544333
    Abstract: A device for the fluidized bed cracking of a hydrocarbon charge using two reaction chambers linked together by a cooling particles transferrer, a fractionating column and conduits to supply the hydrocarbonated effluents from each of the two chambers to the fractionating column. The fractionating column has, internally, at least two different areas: a first partitioned fractionating area in the form of two compartments, each of which communicates with a second common fractionating area. The conduits for the supply of effluents from the first and the second reaction chamber terminate, respectively, in the first and second compartment of the partitioned fractionating area. A recycler and an injector are provided for recycling and injecting into one of the reaction chambers of at least one cut drawn off from the partitioned fractionating compartment of the effluents of the other reaction chamber.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: June 9, 2009
    Assignee: Total Raffinage Distribution S.A.
    Inventors: Marcellin Espeillac, Pierre Crespin
  • Publication number: 20090107881
    Abstract: Methods and systems for hydrocracking a heavy oil feedstock using, a colloidally or molecularly dispersed catalyst (e.g., molybdenum sulfide) which provide for concentration of the colloidally dispersed catalyst within the lower quality materials requiring additional hydrocracking. In addition to increased catalyst concentration, the inventive systems and methods provide increased reactor throughput, increased reaction rate, and of course higher conversion of asphaltenes and lower quality materials. Increased conversion levels of asphaltenes and lower quality materials also reduces equipment fouling, enables the reactor to process a wider range of lower quality feedstocks, and can lead to more efficient use of a supported catalyst if used in combination with the colloidal or molecular catalyst.
    Type: Application
    Filed: October 31, 2007
    Publication date: April 30, 2009
    Applicant: HEADWATERS TECHNOLOGY INNOVATION, LLC
    Inventors: Robert K. Lott, Yu-Hwa Chang
  • Patent number: 7517500
    Abstract: A process and apparatus are disclosed contacting hydrocarbon feed with catalyst in a reactor vessel under conditions more vigorous than bubbling bed conditions and preferably fast fluidized flow conditions. The vigorous conditions assure thorough mixing of catalyst and feed to suppress formation of dry gas and the promotion of hydrogen transfer reactions.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: April 14, 2009
    Assignee: UOP LLC
    Inventor: David A. Lomas
  • Publication number: 20090000984
    Abstract: Processes for maximizing low aromatics LCO yield and/or propylene yield in fluid catalytic cracking are disclosed. The processes employ catalytic compositions that comprise a predominantly basic material and little to no large pore zeolite.
    Type: Application
    Filed: June 9, 2008
    Publication date: January 1, 2009
    Applicant: ALBEMARLE NETHERLANDS B.V.
    Inventors: Elbert Arjan De Graaf, Raymond Paul Fletcher, King Yen Yung, Erja Paivi Helena Rautiainen
  • Patent number: 7462275
    Abstract: The present invention relates to a process for the conversion of hydrocarbon streams with 95% true boiling point less than 400° C. to very high yield of liquefied petroleum gas in the range of 45-65 wt % of feed and high octane gasoline, the said process comprises catalytic cracking of the hydrocarbons using a solid fluidizable catalyst comprising a medium pore crystalline alumino-silicates with or without Y-zeolite, non crystalline acidic materials or combinations thereof in a fluidized dense bed reactor operating at a temperature range of 400 to 550° C., pressure range of 2 to 20 kg/cm2 (g) and weight hourly space velocity in range of 0.1 to 20 hour?1, wherein the said dense bed reactor is in flow communication to a catalyst stripper and a regenerator for continuous regeneration of the coked catalyst in presence of air and or oxygen containing gases, the catalyst being continuously circulated between the reactor-regenerator system.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: December 9, 2008
    Assignee: Indian Oil Corporation Limited
    Inventors: Asit Kumar Das, Debasis Bhattacharyya, Gadari Saidulu, Satayen Kumar Das, Bandaru Venkata Hari P. Gupta, Ramakrishnan Ramanarayanan, Latoor Lal Saroya, Konduri Lakshminarayana, Marri Rama Rao, Vinod Ramchandra Upadhyay, Sukumar Mandal, Deepa Meghavathu, Arumugam Velayutham Karthikeyani, Wadharwa Ram Kalsi, Arvind Pratap Singh, Veena Bansal, Ashok Kumar Tiwari, Venkatachalam Krishnan, Satish Makhija, Sobhan Ghosh, Niranjan Raghunath Raje
  • Patent number: 7427349
    Abstract: The present invention relates to the field of hydroprocessing, and more particularly relates to a process directed to fuels hydrocracking and distillate feed hydrofining. This process has at least two stages. A relatively unconverted hydrofined product may be removed prior to the second stage, providing flexibility. In another embodiment, fresh feed may be added prior to the second stage. In both embodiments, fuels production is maintained at a constant level.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: September 23, 2008
    Assignee: Chevron U.S.A. Inc.
    Inventors: Ujjal K. Mukherjee, Kevin L. Hofer, Darush Farshid
  • Patent number: 7393992
    Abstract: Sudstituted the abstract with a new abstract as follows: The invention relates to a continuous process for separation a mixture of hydrocarbons which has beenobtained by extractive distillation of C4 fraction useing a selective solvent and the hydrocarbons from the fraction C4 which are more readily soluble in the selective solvent than are the butanes and the butenes. The mixture is fed into a first distillation column in which it is separated into a steam which is taken off at the top and comprises 1,3-butadiene, propyne, possibly further low boilers and possibly water and a bottom stream comprising 1,3-butadiene, 1,2-butadiene, acetylenes and possibly further high boilers, with the proportion of 1,3-butadiene in the bottom stream from the distillatin column being regulated in such a way that it is at least sufficiently high to dilute the acetylenes to outside the range in which there is a risk of spontaneous decomposition.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: July 1, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Hill, Klaus Kindler, Bernd Heida
  • Patent number: 7323099
    Abstract: A process for selectively producing C2 to C4 olefins from feedstock such as a gas oil or resid. The feedstock is reacted in a first stage comprising a fluid catalytic cracking unit wherein it is converted in the presence of a mixture of conventional large pore zeolitic catalyst and a medium pore zeolitic catalyst to reaction products, including a naphtha boiling range stream. The naphtha boiling range stream is introduced into a second stage where it is contacted with a catalyst containing from about 10 to about 50 wt. % of a crystalline zeolite having an average pore diameter less than about 0.7 nanometers at reaction conditions which include temperatures ranging from about 500 to about 650° C. and a hydrocarbon partial pressure from about 10 to about 40 psia (about 70 to about 280 kPa).
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: January 29, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Brian Erik Henry
  • Patent number: 7316773
    Abstract: The present invention relates to a catalytic cracking process and a device used in the process in particular, the present invention provides a catalytic cracking process, which comprises which comprises: 1) catalytic cracking a feedstock in the first riser for less than about 1.5 second and sending the resultant stream into the first separating device,; 2) catalytic cracking the recycle oil obtained from the first separating device in the second riser for less than about 1.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: January 8, 2008
    Assignees: Petrochina Company Limited, University of Petroleum China
    Inventors: Jianfang Zhang, An Ma, Honghong Shan, Chaohe Yang, Genlin Niu, Yongshan Tu, Feng Du, Yudong Sun, Zheng Li, Chunyi Li, Zhongxiang Han
  • Patent number: 7300565
    Abstract: The invention relates to a process to prepare a microcrystalline wax and a middle distillate fuel by (a) hydrocracking/hydroisomerizing a Fischer-Tropsch product, wherein the weight ratio of compounds having at least 60 or more carbon atoms and compounds having at least 30 carbon atoms in the Fischer-Tropsch product is at least 0.2 and wherein at least 30 wt % of compounds in the Fischer-Tropsch product have at least 30 carbon atoms, (b) performing one or more distillate separations on the effluent of step (a) to obtain a middle distillate fuel fraction and a microcrystalline wax having an initial boiling point of between 500 and 600° C.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: November 27, 2007
    Assignee: Shell Oil Company
    Inventor: Arend Hoek
  • Patent number: 7261807
    Abstract: The propylene production of a fluid catalytic cracking unit employing a large pore zeolite cracking catalyst, produces more propylene by adding a naphtha cracking riser and a medium pore zeolite catalytic component to the unit, and recycling at least a portion of the naphtha crackate to the naphtha riser. The large pore size zeolite preferably comprises a USY zeolite and the medium pore size is preferably ZSM-5. Propylene production per unit of naphtha feed to the naphtha riser is maximized, by using the 60–300° F. naphtha crackate as the feed.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: August 28, 2007
    Assignee: ExxonMobil Research and Engineering Co.
    Inventors: B. Erik Henry, William A. Wachter, George A. Swan, III
  • Patent number: 7083762
    Abstract: The present invention is directed to a hydrocarbon conversion apparatus and process. The apparatus comprises the following: a plurality of riser reactors, each having a first end into which a catalyst is fed, a second end through which the catalyst can exit, and optionally a center axis extending therebetween. The apparatus also includes a separation zone having a plurality of inlets, each inlet not being oriented along the center axes of the riser reactors, the separation zone being provided to separate the catalyst from products of a reaction conducted in the hydrocarbon conversion apparatus. A plurality of deviating members are also provided, each deviating member being in fluid communication between the second end of a respective riser reactor and a respective inlet of the separation zone. The apparatus also includes a catalyst retention zone provided to contain catalyst, which is fed to the riser reactors.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: August 1, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Keith Holroyd Kuechler, James R. Lattner, Nicolas P. Coute, Jeffrey S. Smith, Justin Leonard Krieger
  • Patent number: 6905591
    Abstract: The present invention provides a catalytic cracking reactor system and process in which a riser reactor is configured to have two sections of different radii in order to produced improved selectivity to propene and butenes as products.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: June 14, 2005
    Assignee: Stone & Webster Process Technology, Inc.
    Inventor: Warren S. Letzsch
  • Patent number: 6869521
    Abstract: A process and apparatus are disclosed contacting hydrocarbon feed with catalyst in a reactor vessel under conditions more vigorous than bubbling bed conditions and preferably fast fluidized flow conditions. The vigorous conditions assure thorough mixing of catalyst and feed to suppress formation of dry gas and the promotion of hydrogen transfer reactions.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: March 22, 2005
    Assignee: UOP LLC
    Inventor: David A. Lomas