Including External Recycle Loop Patents (Class 422/234)
  • Patent number: 10221077
    Abstract: The present invention refers to a process for the preparation of an aqueous solution comprising at least one earth alkali hydrogen carbonate and its uses. The process may be carried out in a reactor system comprising a tank (1) equipped with a stirrer (2), at least one filtering device (4) and a grinding device (18).
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: March 5, 2019
    Assignee: Omya International AG
    Inventors: Matthias Buri, Samuel Rentsch, Patrick A. C. Gane, René Vinzenz Blum, Martine Poffet
  • Patent number: 10196330
    Abstract: A process for conversion of natural gas to aromatic hydrocarbons in a catalytic membrane reactor is described herein. The catalytic membrane reactor comprises a dehydrogenation catalyst and a membrane that can selectively transport hydrogen under high temperature operating conditions such as 600° C. to 800° C. Aromatic hydrocarbons are produced stably for a long time by a process characterized by hydrogen co-feed with the reaction gases to the one end of the to the reaction zone while hydrogen is extracted selectively with use of the membrane as the reactive gas mix passes through the reaction zone.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: February 5, 2019
    Assignee: Protia AS
    Inventors: Per Kristian Vestre, Christian Kjølseth
  • Patent number: 9028762
    Abstract: A wet type exhaust gas desulfurization apparatus includes an absorption tower desulfurizing exhaust gas by causing the exhaust gas to come into gas-liquid contact with an absorbent, a spray mechanism spraying the absorbent into the tower, an oxidization mechanism provided in a bottom portion of the tower and supplying oxygen to the absorbent that accumulates inside the tower, a circulation mechanism feeding the absorbent from a discharge port formed in the bottom portion of the tower, to the spray mechanism, and a liquid ejection mechanism including a hydraulic nozzle ejecting liquid into the tower. In this apparatus, the oxidization mechanisms are provided with an interval in a horizontal direction relative to the discharge port. Furthermore, in the apparatus, the hydraulic nozzle is installed in the bottom portion of the tower and is provided at a location between the oxidization mechanism and the discharge port.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: May 12, 2015
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventor: Motofumi Ito
  • Publication number: 20150110685
    Abstract: A method and apparatus for method of continuously producing 1,1,1,2,3-pentafluoropropane with high yield is provided. The method includes (a) bringing a CoF3-containing cobalt fluoride in a reactor into contact with 3,3,3-trifluoropropene to produce a CoF2-containing cobalt fluoride and 1,1,1,2,3-pentafluoropropane, (b) transferring the CoF2-containing cobalt fluoride in the reactor to a regenerator and bringing the transferred CoF2-containing cobalt fluoride into contact with fluorine gas to regenerate a CoF3-containing cobalt fluoride, and (c) transferring the CoF3-containing cobalt fluoride in the regenerator to the reactor and employing the transferred CoF3-containing cobalt fluoride in Operation (a). Accordingly, the 1,1,1,2,3-pentafluoropropane can be continuously produced with high yield from the 3,3,3-trifluoropropene using a cobalt fluoride (CoF2/CoF3) as a fluid catalyst, thereby improving the reaction stability and readily adjusting the optimum conversion rate and selectivity.
    Type: Application
    Filed: December 30, 2014
    Publication date: April 23, 2015
    Inventors: ook jae Cho, Jae Kug Ryu, Bong Seok Kim, Donghyun Kim, Byounghun Park, su jin Park, Jin-A Jung, Daewoo Kim
  • Patent number: 9005534
    Abstract: In flue-gas desulfurization equipment, in order to gypsumize sulfur dioxide in a byproduct at approximately 100% and to make desulfurization rate approximately 100%, the flue-gas desulfurization equipment (1) according to the present invention is provided with a basket-shaped rotation cylinder (20) arranged in the fixing duct (10) in a state of being supported rotatably around a horizontal shaft (21), a rotation packed bed (30) formed by filling fillers for gas-liquid contact in the basket-shaped rotation cylinder (20), a slurry storage tank (40) having plural communication storage sections (41) located below the rotation packed bed (30) and divided by separation plates (43) each of which has a communication part (43a), and slurry spraying means (63) which are provided corresponding to the plural communication storage sections (41) and which spray the absorbent slurry extracted from the corresponding communication storage sections (41) to upper parts of the communication storage section (41) in the rotation p
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: April 14, 2015
    Inventor: Takeshi Kimura
  • Patent number: 8980192
    Abstract: Described herein are embodiments of systems and methods for oxidizing gases. In some embodiments, a reaction chamber is configured to receive a fuel gas and maintain the gas at a temperature within the reaction chamber that is above an autoignition temperature of the gas. The reaction chamber may also be configured to maintain a reaction temperature within the reaction chamber below a flameout temperature. In some embodiments, heat and product gases from the oxidation process can be used, for example, to drive a turbine, reciprocating engine, and injected back into the reaction chamber.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: March 17, 2015
    Assignee: Ener-Core Power, Inc.
    Inventor: Boris A. Maslov
  • Patent number: 8980193
    Abstract: Described herein are embodiments of systems and methods for oxidizing gases. In some embodiments, a reaction chamber is configured to receive a fuel gas and maintain the gas at a temperature within the reaction chamber that is above an autoignition temperature of the gas. The reaction chamber may also be configured to maintain a reaction temperature within the reaction chamber below a flameout temperature. In some embodiments, heat and product gases from the oxidation process can be used, for example, to drive a turbine, reciprocating engine, and injected back into the reaction chamber.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: March 17, 2015
    Assignee: Ener-Core Power, Inc.
    Inventors: Thomas Renau Denison, Boris A. Maslov
  • Patent number: 8951407
    Abstract: A simplified process is provided for creating hybrid crude oils and hybrid crude fractions with characteristics superior to the original. The process uniquely combines gases with crude oil or crude fractions in an effervescent turbulent manner at low temperatures and pressures and without the further aid of catalysts. The process breaks large chain hydrocarbons into smaller chain hydrocarbons, molecularly combines carbon, hydrogen, and/or hydrocarbon molecules from the gases with and into hydrocarbon molecules of the crude or crude fraction, and separates contaminants and impurities.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: February 10, 2015
    Assignee: Clean Global Energy, Inc.
    Inventors: Robert Miller, Delmar Guenther, Rick Lutterbach, Jeff Nichols
  • Patent number: 8926917
    Abstract: Described herein are embodiments of systems and methods for oxidizing gases. In some embodiments, a reaction chamber is configured to receive a fuel gas and maintain the gas at a temperature within the reaction chamber that is above an autoignition temperature of the gas. The reaction chamber may also be configured to maintain a reaction temperature within the reaction chamber below a flameout temperature. In some embodiments, heat and product gases from the oxidation process can be used, for example, to drive a turbine, reciprocating engine, and injected back into the reaction chamber.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: January 6, 2015
    Assignee: Ener-Core Power, Inc.
    Inventor: Boris A. Maslov
  • Patent number: 8834819
    Abstract: A powder lime calcining process comprises: transporting fine granules of limestones having a water content less than 4%, and a granule size less than 15 mm, from a raw material storing bin to a small material bin, transporting the materials from the small material bin into an airflow pipe by a belt conveyer, heating and drying the materials, sieving the materials by a sieving device, transporting granules into a cyclone cylinder deduster and a clothbag deduster in turn by airflow pipes, the fine powders of limestones after dedusted are transported into an intermediate bin; the materials within the intermediate bin are transported to four preheating cyclone cylinders by a pneumatic lift pump and airflow pipes, and are preheated and separated; the materials after separated are transported into three cooling cyclone cylinders for cooling and separating the materials, finally transported into a finished product bin by a finished product transporting system.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: September 16, 2014
    Assignee: Baoshan Iron & Steel Co., Ltd.
    Inventors: Jun Wei, Hua Gao, Bin Zhang, Guoqiang Liu
  • Patent number: 8821805
    Abstract: This application provides a process unit for the production of alkylate gasoline, comprising: a) a nozzle having an orifice that dispenses one or more recirculated streams comprising ionic liquid catalyst into a chamber in the nozzle, b) a conduit for introducing a hydrocarbon feed stream comprising an olefin to the orifice at a close distance from the orifice; and c) a throat connecting the chamber in the nozzle to an alkylation zone. The process unit can have multiple Venturi nozzles.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: September 2, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Huping Luo, Moinuddin Ahmed, Krishniah Parimi, Bong-Kyu Chang
  • Patent number: 8791304
    Abstract: The present invention relates to an apparatus for coproducting iso-type reaction product and alcohol from olefin, and a method for coproducting using the apparatus, in which the hydroformylation reactor provides a sufficient reaction area due to the broad contact surface area between the olefin and the synthesis gases that are the raw materials by a distributor plate installed in the reactor, and the raw materials can be sufficiently mixed with the reaction mixture due to the circulation of the reaction mixture so that the efficiency of the production of the aldehyde is excellent; and also the hydrogenation reactor suppresses the side reaction so that the efficiency for producing aldehyde and alcohol are all increased, and also iso-type reaction product and alcohol can be efficiently co-produced.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: July 29, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Dong-Hyun Ko, Moo-Ho Hong, Sung-Shik Eom, Yong-Jin Choe, O-Hak Kwon, Dae-Chul Kim, Jae-Hui Choi
  • Patent number: 8778294
    Abstract: The present invention relates to a process of preparing precipitated calcium carbonate (PCC) in a low energy intensity reactor in such a manner that the amount of solids in the PCC product can be raised to 35% or more without performing a dewatering step. The process comprises performing in parallel and in two or more separate reaction vessel the steps of contacting calcium hydroxide with a gas comprising carbon dioxide to allow formation of calcium carbonate, and adding calcium oxide, lime or dry calcium hydroxide or a combination of any of the three to a part of the resulting mixture of calcium hydroxide and calcium carbonate. The invention further provides a specialized reactor system as well as the use of this reactor system in the manufacture of PCC.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: July 15, 2014
    Assignee: Omya Development AG
    Inventors: Kaare Hvid Hansen, Mogens Pedersen
  • Publication number: 20140186233
    Abstract: Disclosed is a dust separating and carrier returning device, which comprises: an outer raw material transfer passage (1) and an inner carrier returning passage (2), and a sieve cage (4) with one end thereof connected with the raw material transfer passage (1) and the other end sealed; a spiral conveyer belt is provided between the sieve cage (4) and the carrier returning passage (2), with the two sides thereof connected to the inner wall of the sieve cage (4) and the outer wall of the carrier returning passage (2); and the end of the spiral conveyer belt is connected to the rear port of the carrier returning passage (2) via a guide plate (5). The above device achieves the dedusting of the carrier during the transmission process and the returning of the dedusted carrier to another working circle, thereby improving work efficiency and reducing the number of manufacturing process steps which in turn reduces the process cost.
    Type: Application
    Filed: August 30, 2011
    Publication date: July 3, 2014
    Applicant: JINAN YOUBANG HENGYU SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Bin Niu, Xiaolu Niu
  • Patent number: 8764859
    Abstract: A gas-generating apparatus includes a reaction chamber having a first reactant, a reservoir having an optional second reactant, and a self-regulated flow control device. The self-regulated flow control device stops the flow of reactant from the reservoir to the reaction chamber when the pressure of the reaction chamber reaches a predetermined level. Methods of operating the gas-generated apparatus and the self-regulated flow control device, including the cycling of a shut-off valve of the gas-generated apparatus and the cycling of the self-regulated flow control device are also described.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: July 1, 2014
    Assignee: Societe BIC
    Inventors: Alain Rosenzweig, Paul Adams, Andrew J. Curello, Floyd Fairbanks, Anthony Sgroi, Jr., Constance R. Stepan
  • Patent number: 8765066
    Abstract: A combustion exhaust gas processing device comprises: a dust collector collecting dust in a cement kiln combustion exhaust gas; a wet dust collector using sodium hypochlorite as a catalyst-poisoning-substance stripper for removing a catalyst-poisoning substance and mercury from a combustion exhaust gas which passed the dust collector; heaters downstream of the wet dust collector for heating the combustion exhaust gas from the wet dust collector; and a catalyst device from which NOx, a persistent organic pollutant, etc. in the heated combustion exhaust gas, are removed. An upstream side of the catalyst device is installed with an oxide catalyst such as titanium-vanadium and a downstream side is installed with a platinum catalyst as a noble-metal catalyst. The temperature of the combustion exhaust gas after the wet dust collector is increased up to 140° C. or more with the heaters to prevent decline in denitration efficiency of and the decomposition efficiency of a volatile organic compound.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: July 1, 2014
    Assignees: Taiheiyo Cement Corporation, Nippon Shokubai Co., Ltd.
    Inventors: Shinichiro Saito, Yasuhiro Uchiyama, Junichi Terasaki, Hisashi Kondo, Mitsuharu Hagi, Shinyuki Masaki
  • Patent number: 8758692
    Abstract: There is provided a synthesis reaction system which synthesizes a hydrocarbon compound by a chemical reaction of a synthesis gas including hydrogen and carbon monoxide as main components, and a slurry having solid catalyst particles suspended in liquid and which extracts the hydrocarbon compound from the slurry. The synthesis reaction system includes a reactor main body which accommodates the slurry, a separator which separates the hydrocarbon compound included in the slurry from the slurry, a first flow passage which allows the slurry including the hydrocarbon compound to flow to the separator from the reactor main body, a second flow passage which allows the slurry to flow to the reactor main body from the separator, and a fluid supply nozzle which supplies a fluid toward at least any one of the separator, the first flow passage, and the second flow passage.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: June 24, 2014
    Assignees: Nippon Steel Engineering Co., Ltd., Japan Oil, Gas and Metals National Corporation, Inpex Corporation, Nippon Oil Corporation, Japan Petroleum Exploration Co., Ltd., Cosmo Oil Co., Ltd.
    Inventor: Yasuhiro Onishi
  • Publication number: 20140154169
    Abstract: Systems and methods for thermally decomposing hydrocarbon feedstock may comprise a hydrocarbon feedstock, a non-oxidizing carrier gas, one or more heat exchangers, and a reaction chamber. The carrier gas may be used to transfer heat to the hydrocarbon feedstock. The heat exchanger(s) may be configured to heat the carrier gas. And the reaction chamber may be configured to receive hydrocarbon feedstock and heated carrier gas. Inside the reaction chamber, the hydrocarbon feedstock and the heated carrier gas may mix with one another causing the thermal decomposition reaction. The thermal decomposition reaction occurs in a substantially oxidant-free environment thereby eliminating or greatly reducing the production of carbon oxide byproducts. Hydrogen gas may be separated from a gaseous product stream that is thereafter collected from the reaction chamber. A portion of the gaseous product stream may be thermally coupled to the carrier gas and may thereafter be recycled through the system.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Applicant: Elwha LLC
    Inventors: Roderick A. Hyde, Lowell L. Wood, JR.
  • Publication number: 20140056791
    Abstract: A solvent solution for capture of CO2 from a stream includes a water soluble polymer comprising an amino group.
    Type: Application
    Filed: June 25, 2013
    Publication date: February 27, 2014
    Inventor: Stephen Alan Bedell
  • Patent number: 8648209
    Abstract: A biodiesel plant includes a loop-shaped reactor which circulates reactants, e.g., feed stock and a methanol catalyst mixture through mesh to mix the reactants and form crude biodiesel. The feed stock is preferably heated to about 200 to 210° F. After the reaction, methanol may be recovered. There may also be a tank for removal of glycerin from the crude biodiesel. In another embodiment, there is a method for reacting the feed stock and methanol catalyst mixture by circulating the reactants through a turbulence-creating path, such as by using mesh in the reactor.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: February 11, 2014
    Inventor: Joseph P. Lastella
  • Publication number: 20130334463
    Abstract: A system includes a capture system, a storage system, and a return system. The capture system is configured to receive an outlet gas from a gasification system and to extract a component gas of the outlet gas using a regenerable material during a start-up operation of the gasification system. The storage system is coupled to the capture system and is configured to store the component gas extracted by the capture system. The return system is configured to return the component gas from the storage system to the gasification system during a normal operation of the gasification system.
    Type: Application
    Filed: June 18, 2012
    Publication date: December 19, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Judeth Brannon Corry, Raul Eduardo Ayala, Tiffany Elizabeth Pinard Westendorf
  • Patent number: 8568510
    Abstract: A gas separation process for treating off-gas streams from reaction processes, and reaction processes including such gas separation. The invention involves flowing the off-gas across the feed side of a membrane, flowing a sweep gas stream, usually air, across the permeate side, and passing the permeate/sweep gas mixture to the reaction. The process recovers unreacted feedstock that would otherwise be lost in the waste gases in an energy-efficient manner.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: October 29, 2013
    Assignee: Membrane Technology and Research, Inc
    Inventors: Johannes G Wijmans, Richard W Baker, Timothy C Merkel
  • Publication number: 20130236369
    Abstract: Described herein are embodiments of systems and methods for oxidizing gases. In some embodiments, a reaction chamber is configured to receive a fuel gas and maintain the gas at a temperature within the reaction chamber that is above an autoignition temperature of the gas. The reaction chamber may also be configured to maintain a reaction temperature within the reaction chamber below a flameout temperature. In some embodiments, heat and product gases from the oxidation process can be used, for example, to drive a turbine, reciprocating engine, and injected back into the reaction chamber.
    Type: Application
    Filed: March 9, 2012
    Publication date: September 12, 2013
    Applicant: FLEXENERGY, INC.
    Inventors: Boris A. MASLOV, Douglas HAMRIN
  • Patent number: 8506839
    Abstract: This invention relates to a composition comprising water and at least one ionic liquid, and also to devices capable of executing an absorption cycle using such compositions as a refrigerant pair. This invention also provides a method of cooling using an absorption cycle comprising water as the refrigerant and at least one ionic liquid as the absorbent. The present invention also provides a method of heating using an absorption cycle comprising water as the refrigerant and at least one ionic liquid.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: August 13, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Mark Brandon Shiflett, Akimichi Yokozeki
  • Patent number: 8486340
    Abstract: Disclosed herein is an apparatus for continuously producing and pelletizing gas hydrates. The apparatus includes a gas supply unit, a water supply unit and a reactor. Gas and water are respectively supplied from the gas supply unit and the water supply unit into the reactor. The gas and water react with each other in the reactor. The reactor includes a dual cylinder unit which forms a gas hydrate in such a way as to squeeze a slurry of reaction water formed by the reaction between the gas and water. The dual cylinder unit includes an upper cylinder, a lower cylinder and a connection pipe which connects the upper cylinder to the lower cylinder. The connection pipe has passing holes through which the reaction water in the reactor flows into and out of the connection pipe.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: July 16, 2013
    Assignees: Korea Institute of Industrial Technology, Samsung Heavy Industries Co., Ltd., Hyundai Engineering Co., Ltd., Daewoo Engineering & Construction Co., Ltd., Sungilturbine Co., Ltd.
    Inventors: Ju Dong Lee, Hyoung Jae Kim, Sung Ryul Kim, Sang Yeon Hong, Hye Ok Park, Mun Keun Ha, Seok Ku Jeon, Hoon Ahn, Ta Kwan Woo
  • Patent number: 8455696
    Abstract: Production of a ketone or aldehyde prepared by condensation is optimized by dehydration and hydrogenation of a starting acetone/ketone or aldehyde in a reaction zone and wherein water is partially eliminated from such reaction product by at least one membrane pervaporation module, the pervaporation module being fed tangentially and situated laterally to the reaction zone and operating in a loop, and wherein a fraction of reaction product exiting the reaction zone is thus partially dehydrated and recycling such dehydrated concentrate to the reaction zone.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: June 4, 2013
    Assignee: Rhodia Poliamida E Especialidades LTDA
    Inventors: Roberto Nasser, Dalva Janine Rita, Joël Schwartz
  • Patent number: 8449848
    Abstract: Production of polycrystalline silicon in a substantially closed-loop process is disclosed. The processes generally include decomposition of trichlorosilane produced from metallurgical grade silicon.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: May 28, 2013
    Assignee: MEMC Electronic Materials, Inc.
    Inventors: Satish Bhusarapu, Yue Huang, Puneet Gupta
  • Patent number: 8431081
    Abstract: Solvent extraction is used to remove wax and contaminants from an iron-based Fischer-Tropsch catalyst in a natural circulation continuous-flow system. The wax-free catalyst is then subjected to controlled oxidation to convert the iron to its initial oxidized state, Fe2O3. Reactivation of the oxide catalyst precursor is carried out by addition of synthesis gas.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: April 30, 2013
    Assignee: Rentech, Inc.
    Inventors: Belma Demirel, Mark S. Bohn, Charles B. Benham, James E. Siebarth, Mark D. Ibsen
  • Patent number: 8398931
    Abstract: The invention provides a recirculating reactor for converting a substrate to a product. The reactor comprises a reaction chamber and a recirculation system, said recirculation system comprising a separator. The reaction chamber contains a catalyst, and comprises a chamber body, a chamber inlet and a chamber outlet. The recirculation system is adapted for recirculating liquid from the chamber outlet to the chamber inlet, and the separator is used for separating a by-product from the liquid.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: March 19, 2013
    Assignee: Agency for Science, Technology and Research
    Inventors: Jackie Y. Ying, Su Seong Lee, Jaehong Lim, Siti Nurhanna binte Riduan
  • Publication number: 20130004383
    Abstract: The formation of pollutants in a hydrocarbon reformer is reduced by use of flue gas recirculation. In typical systems and methods, a hydrocarbon reformer has air intake from an air intake fan where the hydrocarbon reformer produces flue gas exhaust. A portion of the flue gas exhaust is fed into an induced draft fan, wherein a flue gas recirculation (“FGR”) fan draws a portion of the flue gas exhaust located downstream of the induced draft fan. The portion of the flue gas is drawn towards an air intake conduit downstream of the air intake fan, which reduces a flame temperature within the hydrocarbon reformer and reduces the formation of NOx.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 3, 2013
    Applicant: FLUOR TECHNOLOGIES CORPORATION
    Inventors: Brent Stang, Peter H. Johnson
  • Patent number: 8317884
    Abstract: A gas-generating apparatus (10) includes a reaction chamber (18) containing a solid fuel component (24) and a liquid fuel component (22) that is introduced into the reaction chamber by a fluid path, such as a tube, nozzle, or valve. The flow of the liquid fuel to the solid fuel is self-regulated. Other embodiments of the gas-generating apparatus are also disclosed.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: November 27, 2012
    Assignee: Societe Bic
    Inventors: Andrew Curello, Floyd Fairbanks, Constance R. Stepan, Anthony Sgroi, Jr., Michael Curello
  • Patent number: 8298490
    Abstract: The present invention is directed to systems and methods of synthesizing trichlorosilane. The disclosed systems and methods can involve increasing the concentration of the solids in the slurry to recover or separate the volatilized metal salts and reduce the obstructions created by the solidification of the metal salts in downstream operations of the during trichlorosilane synthesis. Rather than heating to raise the temperature to vaporize chlorosilane compounds, and subsequently condensing the volatilized chlorosilane compounds, the present invention can involve increasing the solids concentration in the slurry stream by utilizing a non-condensable gas, such as hydrogen, to volatilize the chlorosilane components, which can consequently promote evaporative conditions that can reduce the slurry temperature. The lower slurry temperature results in a lower volatility of the metal salts, which reduces the likelihood of carryover to downstream unit operations.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: October 30, 2012
    Assignee: GTAT Corporation
    Inventors: Scott Fahrenbruck, Bruce Hazeltine
  • Publication number: 20120238779
    Abstract: The invention relates to a process for preparing aromatic amines by hydrogenation of corresponding nitroaromatics by means of hydrogen, and also an apparatus suitable for this purpose. In particular, the invention relates to a process for preparing toluenediamine (TDA) by hydrogenation of dinitrotoluene (DNT).
    Type: Application
    Filed: March 15, 2012
    Publication date: September 20, 2012
    Applicant: BASF SE
    Inventors: Gerrit WATERS, Johannes Büttner, Andreas Raichle, Markus Hiller, Peter Renze, Michael Herrich, Helmut Rüger, Burkhard Hantel, Arndt Hofmann, Rüdiger Fritz, Kathrin Richter, Holgar Braunsberg, Lothar Bruntsch
  • Patent number: 8269028
    Abstract: Method and apparatus for producing biodiesel fuel, i.e., alkyl ester, from vegetable and/or animal oil. A transesterification catalyst is prepared in a base catalyst tank by spraying alkyl alcohol under pressure through jets at metal hydroxide pellets until the pellets have fully reacted with the alcohol. The oil is heated and transesterified in the presence of alkyl alcohol and the transesterification catalyst in a closed, recirculating transesterification flow system under slight cavitation to yield product alkyl ester and product glycerol. Cavitation is achieved by permitting air to enter the transesterification flow system through an adjustable air inlet valve. When permitted to stand, product alkyl ester forms an upper layer that is decanted and subjected to purification steps, to remove particulates and alkyl alcohol from the product alkyl ester, and a lower layer of product glycerol is drained away.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: September 18, 2012
    Inventor: Michael F. Pelly
  • Patent number: 8263007
    Abstract: The present invention relates to a slurry bed loop reactor comprising a riser and at least one downcomer (3), wherein two ends of the riser are connected to two ends of the downcomer (3) via lines (16) and (7), respectively. The riser comprises a reaction section (1) and a settling section (2) with an increased tube diameter disposed on the reaction section (1). A gas outlet (13) exists at the top of the settling section (2). Each of the downcomers (3) is divided into a filtrate section (5) and a slurry section (6) by filter medium (4), wherein the filtrate section (5) is connected to a liquid outlet (10); two ends of the slurry section (6) are respectively connected to two ends of the riser, and the filtrate region (5) may further be connected to a back purging system.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: September 11, 2012
    Assignees: China Petroleum Chemical Corporation, Research Institute of Petroleum Processing, Sinopec
    Inventors: Zhanzhu Zhang, Lifeng Hu, Xiaojin Tang, Shaobing Wang, Shuandi Hou, Junyi Mao, Hongliang Qu
  • Patent number: 8246914
    Abstract: One exemplary embodiment can be a fluid catalytic cracking system. The system can include a reaction zone operating at conditions to facilitate olefin production and including at least one riser. The at least one riser can receive a first feed having a boiling point of about 180-about 800° C., and a second feed having more than about 70%, by weight, of one or more C4+ olefins.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: August 21, 2012
    Assignee: UOP LLC
    Inventors: Robert L. Mehlberg, Keith Allen Couch, Brian W. Hedrick, Zhihao Fei
  • Publication number: 20120207648
    Abstract: An improved process and apparatus for the selective reaction of terpenes (including mono-, sesqui-, di-terpenes, and others in the terpene family), alpha-olefin oligomers (OOA's), and related olefins to their respective dimeric product in high purity using heterogeneous acid catalyst concurrent with full utilization of energy created in the process. Embodiments of the invention carry out a unique and highly efficient dimerization of terpenes, alpha-olefin oligomers (OOA's), and olefins using cost effective catalysts and low cost equipment that are ideally suited for commercialization of jet/turbine and diesel biofuel processes producing fuels with high flashpoints and superb cold flow properties.
    Type: Application
    Filed: March 21, 2012
    Publication date: August 16, 2012
    Inventor: Michael E. Wright
  • Publication number: 20120208902
    Abstract: An enhanced Fischer-Tropsch process for the synthesis of sulfur free, clean burning, green hydrocarbon fuels, examples of which include syndiesel and aviation fuel. Naphtha is destroyed in a hydrogen generator and recycled as feedstock to a syngas (FT) reactor in order to enhance the production of syndiesel from the reactor. A further variation integrates a second hydrogen generator capturing light hydrocarbon gas for conversion to hydrogen and carbon monoxide which supplements the Fischer-Tropsch reactor. The result is a considerable increase in the volume of syndiesel formulated. A system for effecting the process is also characterized in the specification.
    Type: Application
    Filed: February 10, 2011
    Publication date: August 16, 2012
    Inventors: Steve KRESNYAK, Timothy William GILES
  • Publication number: 20120184792
    Abstract: The invention relates to an arrangement for feeding heat-sensitive feedstock to a fixed-bed reactor system comprising means for product recycle and a fixed-bed reactor system comprising a fixed-bed reactor comprising at least one reaction zone having at least one catalyst bed and said reaction zone comprising a cold feed distributor arranged on top of each catalyst bed and a conventional distributor arranged above each cold feed distributor. Also a method is provided for feeding heat-sensitive feedstock to a fixed-bed reactor system wherein said fixed-bed reactor system comprises means for product recycle and a fixed-bed reactor comprising at least one reaction zone having at least one catalyst bed and said reaction zone comprising a cold feed distributor arranged on top of each catalyst bed and a conventional distributor arranged above each cold feed distributor.
    Type: Application
    Filed: January 13, 2012
    Publication date: July 19, 2012
    Applicant: NESTE OIL OYJ
    Inventors: Juha SOLANTIE, Kari J. Koivisto
  • Patent number: 8192696
    Abstract: A system and process for continuous production of fatty acid methyl esters (FAME) from the fatty acid triglycerides of waste oil via transesterification in the presence of a reusable sugar-based catalyst. The system and process incorporates re-cycling and re-use of waste by-product streams to result in a near-zero emissions, with a 97% product yield mix consisting of almost pure biodiesel and a very small percentage of impurities including glycerol.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: June 5, 2012
    Inventors: Stephanie Marie Gurski, Anam Kazim, Hoi Ki Cheung, Amani Obeid
  • Publication number: 20120136181
    Abstract: A method of removing alkalinity and salt from a nitroaromatic product downstream of water washing to remove mineral acids and alkaline washing to remove salts of organic acids, comprises washing the product stream with an acidic aqueous solution, prior to the step of removing excess organic reactant, by steam stripping or distillation. Acid removed from the stripper or column is recycled back for use in the acidic washing. The acidic washing is done instead of the neutral washing step of the prior art. It removes residual salt and decreases the level of entrained colloidal water in the nitroaromatic product.
    Type: Application
    Filed: August 18, 2009
    Publication date: May 31, 2012
    Applicant: NORAM INTERNATIONAL LIMITED
    Inventor: Sergio Berretia
  • Publication number: 20120123139
    Abstract: A process for the continuous purification of biodiesel (fatty acid alkyl esters (FAAE)) is described using a powdered, granulated or extruded adsorbent. The adsorbent is contained in a column system and is regenerated for reuse multiple times. The crude biodiesel is contacted with an adsorbent packed into a column, or multiple columns in series, for a sufficient amount of time to remove impurities such as, but not limited to, soaps, metals, free glycerin, sterol glucosides and many of the other impurities that reduce the stability of biodiesel. The resulting finished biodiesel exiting the column(s) is ready for the methanol recovery process. Once the adsorbent no longer removes the desired amount of impurities, it is regenerated for reuse. The solvent used for the regeneration process is reclaimed and reused by recycling it back to the transesterification reaction.
    Type: Application
    Filed: December 27, 2011
    Publication date: May 17, 2012
    Inventors: James R. MUNSON, Brian S. Cooke, Bryan L. Bertram
  • Patent number: 8178054
    Abstract: Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: May 15, 2012
    Assignee: Grupo Petrotemex, S. A. DE C. V.
    Inventors: Alan George Wonders, Lee Reynolds Partin, Wayne Scott Strasser, Marcel de Vreede
  • Patent number: 8178059
    Abstract: A system for supplying chlorine to and recovering chlorine from a polysilicon plant may include a brine treatment system, at least one membrane cell, a chlorine drying system, a chlorine compression system, a hydrogen drying system, a hydrogen compression system, a hydrogen chloride synthesis/desorption system, a hydrogen chloride liquefaction system, a liquefied hydrogen chloride storage system, a hydrogen chloride vaporizer, and a waste conversion and filtration system. These systems may be operatively joined to generate hydrogen chloride gas for delivery to the polysilicon plant. A method for supplying chlorine to the polysilicon plant may include generating hydrogen gas and chlorine gas from recovered and raw salt, converting at least a portion of the hydrogen gas and at least a portion of the chlorine gas to hydrogen chloride, passing the hydrogen chloride through a cryogenic column, vaporizing the hydrogen chloride, and providing the vaporized hydrogen chloride to the polysilicon plant.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: May 15, 2012
    Assignee: CH2M HILL Engineers, Inc.
    Inventor: James T. Sims
  • Publication number: 20120093708
    Abstract: Provided is an extracting and separating device which includes: an ash reactor 12 for preparing a solution having a temperature of about 60° C. by using incineration ash containing sodium, potassium, and chlorine; a cooling crystallizer 16 for reducing the temperature of the solution to 30° C. to produce and separate potassium chloride; an absorption tower 11 for reacting the solution with carbon dioxide-containing gas to produce and separate sodium hydrogen carbonate; and a circulation path 13 for returning to the ash reactor 12 a liquid obtained after the production and separation of the potassium chloride in the cooling crystallizer 16 and the sodium hydrogen carbonate in the absorption tower 11.
    Type: Application
    Filed: July 22, 2010
    Publication date: April 19, 2012
    Inventors: Shuji Hamano, Tsunehira Yamamoto, Satoshi Okumura, Katsuya Sasaki
  • Patent number: 8152873
    Abstract: A system is disclosed to generate hydrogen. The system includes a fuel cartridge, a cartridge interface, and a fuel cartridge receiver. The fuel cartridge includes a liquid permeable material with one or more cavities that encloses a solid anhydrous chemical hydride. The fuel cartridge also includes a housing that is heat and pressure resistant that houses the liquid permeable material, and a liquid. The fuel cartridge also includes one or more liquid sources that introduce the liquid into the housing such that the liquid contacts at least a portion of the liquid permeable material.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: April 10, 2012
    Assignee: Trulite, Inc
    Inventors: Kevin Shurtleff, Eric Ladd, John Patton, Chris Brydon, Ken Pearson
  • Patent number: 8118893
    Abstract: A gas-generating apparatus includes a reaction chamber having a first reactant, a reservoir having an optional second reactant, and a self-regulated flow control device. The self-regulated flow control device stops the flow of reactant from the reservoir to the reaction chamber when the pressure of the reaction chamber reaches a predetermined level. Methods of operating the gas-generated apparatus and the self-regulated flow control device, including the cycling of a shut-off valve of the gas-generated apparatus and the cycling of the self-regulated flow control device are also described.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: February 21, 2012
    Assignee: Societe Bic
    Inventors: Alain Rosenzweig, Paul Adams, Andrew J. Curello, Floyd Fairbanks, Anthony Sgroi, Jr., Constance R. Stepan
  • Patent number: 8114192
    Abstract: A gas separation process for treating off-gas streams from reaction processes, and reaction processes including such gas separation. The invention involves flowing the off-gas across the feed side of a membrane, flowing a sweep gas stream, usually air, across the permeate side, and passing the permeate/sweep gas mixture to the reaction. The process recovers unreacted feedstock that would otherwise be lost in the waste gases in an energy efficient manner.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: February 14, 2012
    Assignee: Membrane Technology & Research, Inc
    Inventors: Richard W. Baker, Johannes G. Wijmans, Timothy C. Merkel
  • Patent number: 8097219
    Abstract: An apparatus for providing reaction of fluids and separation of products with increased residence time. The apparatus includes a stationary shell, a rotating hollow cylindrical component disposed in the stationary shell, a residence-time increasing device external to the stationary shell, a standpipe for introducing fluid into an interior cavity of the hollow cylindrical component from the residence-time increasing device, a first outlet in fluid flow communication with the interior cavity of the hollow cylindrical component for a less dense phase fluid, and a second outlet in fluid flow communication with the interior cavity of the hollow cylindrical component for a more dense phase fluid.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: January 17, 2012
    Assignee: UT-Battelle LLC
    Inventors: Joseph F Birdwell, Jr., Harold L. Jennings, Joanna McFarlane, Constantino Tsouris
  • Patent number: 8097213
    Abstract: Material delivery systems, methods of delivering material and methods of calibrating such systems and methods are disclosed. The material delivery system includes a delivery vessel, a load cell, and automated weight calibration device. The delivery vessel has at least an outlet adapted for coupling to an unit. The load cell is configured to provide a metric indicative of an amount of material in the delivery vessel. The automated weight calibration device is configured to impart a known force onto the at least one load cell. A method includes delivering material to a unit and determining how much material is delivered by a change in weight of a delivery vessel, wherein the delivery vessel comprises a load cell; applying a known calibration force to the load cell; and comparing a metric from the load cell of the known calibration with an expected metric.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: January 17, 2012
    Assignee: Intercat Equipment, Inc.
    Inventors: Al Vierheilig, Brian Dorcheus