And Recovering Heat By Indirect Heat Exchange Patents (Class 203/21)
  • Patent number: 9315732
    Abstract: An ash filter and reboiler (ash filter/reboiler) includes an inlet tube heat exchanger including an outer column (column) having a vapor inlet tube through an inlet of the column coupled therein to receive fuel vapors including entrained ash particles and to direct the fuel vapors including the entrained ash particles out from a bottom of the vapor inlet tube toward a bottom portion of the column. A cooler over the bottom portion of the column for condensing the fuel vapors including the entrained ash particles to liquid fuel. A pump coupled to an outlet in a bottom of the column is for pumping out an ash particle laden portion of the liquid fuel. A heater is above the cooler for vaporizing the liquid fuel into reboiled vapor, and a vapor outlet is at a top of the column for releasing the reboiled vapors out from the column.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: April 19, 2016
    Assignee: Infinitus Renewable Energy, LLC
    Inventor: David W. Fowler
  • Publication number: 20150075967
    Abstract: A distilling device having a vapor compression distiller. The vapor compression distiller can include a reservoir for receiving liquid for distillation. Evaporation surfaces can receive the liquid and evaporate the liquid into evaporated vapor for subsequent condensing. Condensing surfaces can receive the vapor and condense the vapor into distillate. A compressor can deliver the vapor to the condensing surfaces. The distilling device can also include an engine that produces heat. A boiler can be heated by the heat from the engine for producing a working vapor. A vapor turbine can be driven by the working vapor. The vapor turbine can be mechanically coupled to the compressor for mechanically driving the compressor, thereby reducing electrical power needs of the vapor compression distiller.
    Type: Application
    Filed: September 17, 2014
    Publication date: March 19, 2015
    Inventor: William H. Zebuhr
  • Patent number: 8845865
    Abstract: An accelerated vapor recompression apparatus 10 converts incoming flow 35a to a concentrate 35c by developing a concentration profile 146 within a tank 30 holding a liquid 23 containing dissolved solids. The resulting curve 160 of saturation temperature of the stratified liquid 23 (such as a brine 23 or other material 23) moves away from the curve 162 corresponding to fully mixed conditions. The shift 174, 180 in saturation temperature results in increased boiling without increased energy from a heater 70 or compressor 50. A method 90, 200 of control of the system provides interventions 203, 204, 205, 206 at different levels 92, 94, 96, 98 of control, ranging from mass flows 35 to work of a compressor 50, heat from a heater 70, and a predictive processing 215 of feedback 217 for controlling commands 216 algorithmically.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: September 30, 2014
    Assignee: Purestream Services, LLC
    Inventors: J. Clair Batty, Neil W. Richardson, David A. Bell, Christopher M. Miller
  • Patent number: 8758573
    Abstract: The present application concerns a process for the removal of hydrocarbons from an aqueous stream, which process may include conducting a phenol-containing water stream into a separation column, separating the phenol-containing water in the column using heat to form an overhead portion and a bottoms portion, and collecting the overhead portion as well as the bottoms portion. Further, the process may include adding an eluent to an aqueous stream, thereby forming an aqueous mixture, subsequently conducting the aqueous mixture into a separation vessel, wherein it is allowed to settle into two phases, which form a hydrocarbon stream and a phenol-containing water stream, subsequently collecting the hydrocarbon stream, and conducting the phenol-containing water stream to the separation column for further separation.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: June 24, 2014
    Assignee: Borealis Technology Oy
    Inventors: Henrik Andtsjo, Maarit Aarni-Sirvio
  • Patent number: 8551343
    Abstract: A method and system for managing heat energy in a fluid purification system is provided. Initially, air is compressed using one or more compressors to obtain a compressed hot air. Then one or more fluids are purified using the heat energy associated with the compressed hot air in one or more fluid purification units thereby releasing a compressed cooled air. One or more hot purified fluids are stored in one or more fluid storage tanks obtained in response to the purification of the one or more fluids. Thereafter, the compressed cooled air is heated using a heat energy associated with the one or more hot purified fluids to obtain a heated compressed air. Subsequently, one or more turbines are operated using heat energy associated with the heated compressed air to obtain an expanded cooled air. The expanded cooled air is utilized for cooling.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: October 8, 2013
    Assignee: King Abdulaziz City for Science and Technology (KACST)
    Inventors: Mazen Abdullah Ba-Abbad, Hany Abdulrahman Al-Ansary
  • Patent number: 8524046
    Abstract: Methods and systems for controlling the pressure of distillation columns, for example those operating under vacuum pressure and conventionally equipped with a steam ejector system, are described. Representative distillation columns are used in the separation of thermally unstable components, such as the physical solvent sulfolane, having relatively low volatility. Such columns are employed in aromatic hydrocarbon extraction processes for the recovery of purified C6-C8 aromatic hydrocarbons from a hydrocarbon feed stream (e.g., obtained from the catalytic reforming of naphtha).
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: September 3, 2013
    Assignee: UOP LLC
    Inventors: Bruce R. Beadle, Jason L. Noe, Sara A. Williams
  • Patent number: 8425733
    Abstract: Method for dewatering a mixture of mostly ethanol and water which is split into a first partial feed flow (3) that is directed to a distillation column (32) as a reflux flow while a second partial feed flow (4) is directed to an evaporator unit (31) as an evaporator inlet flow and leaves the top of the evaporator unit as an evaporator outlet flow (6). A top discharge flow (7) from distillation column (32) is returned and combined with the evaporator outlet flow (6) to a combined flow (8) at an overpressure and which in a compressor unit (33) is compressed to a combined, compressed flow (10) which enters a dewatering unit (34) in which it is split into a water-rich permeate flow (14) and a retentate flow (11) in the form of substantially water free ethanol.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: April 23, 2013
    Assignee: Epcon Energy and Process Control AS
    Inventors: Geir Halvorsen, Kjetil Evenmo, Carl Ivar Gotaas
  • Patent number: 8428753
    Abstract: The disclosure relates to a system and a method for planning the operation of, monitoring processes in, simulating, and/or optimizing a technical installation comprising several units that can be combined with each other. Said system comprises at least one process planning module, at least one process simulation module, and at least one process optimization module. Components for modeling, simulating, and optimizing the technical installation are stored in said modules. The interrelated modules cooperate with a data management layer via at least one interface, said data management layer making available actual measured and/or historical process data for determining parameters and/or operational data for the modules in order to plan operations as well as simulate and optimize processes. The parameters and/or operational data determined in the modules can be fed to the data management layer for further processing by taking into account the stored components.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: April 23, 2013
    Assignee: ABB Technology AG
    Inventors: Markus Gauder, Rolf Schmitt, Stefan Lauxtermann
  • Patent number: 8377257
    Abstract: A total evaporator for fluids, including a cold chamber to prevent pre-evaporation, an evaporation region connected thereto having narrow flow cross-section for fast evaporation of the fluid, and a subsequent vapor chamber for pulsation damping and the controlled superheating of the vapor, the evaporation region being formed by a gap between concentrically nested cylindrical and/or conical tube sections and heat required for the evaporation and superheating processes is supplied by electric heating and/or by hot fluid and/or by catalytic or homogeneous combustion via the wall of the concentric tubes.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: February 19, 2013
    Assignee: Universitat Stuttgart
    Inventors: Gerhart Eigenberger, Andreas Freund, Grigorios Kolios, Clemens Merten, Jens Bernnat, Gudrun Friedrich
  • Patent number: 8366883
    Abstract: Embodiments of the invention are directed toward a novel pressurized vapor cycle for distilling liquids. In some embodiments of the invention, a liquid purification system is revealed, including the elements of an input for receiving untreated liquid, a vaporizer coupled to the input for transforming the liquid to vapor, a head chamber for collecting the vapor, a vapor pump with an internal drive shaft and an eccentric rotor with a rotatable housing for compressing vapor, and a condenser in communication with the vapor pump for transforming the compressed vapor into a distilled product. Other embodiments of the invention are directed toward heat management, and other process enhancements for making the system especially efficient.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: February 5, 2013
    Assignee: DEKA Products Limited Partnership
    Inventors: David F. Bednarek, Robert Andrew Charles, Andrew Coll, Jason A. Demers, Timothy P. Duggan, Gustav Heinzmann, Joseph A. Hoell, Jr., James L. Jackson, Scott A. Leonard, David W. McGill, Kingston Owens
  • Patent number: 8343310
    Abstract: A vessel-based system and method for disposing of wastewater including bilge water from a bilge of the vessel. The system including a treatment unit for receiving and treating the wastewater to produce a substantially oil-free treated water and, an evaporator for receiving the treated water from the treatment unit. In an embodiment, the evaporator having an evaporation element for transferring heat to the treated water to evaporate the treated water.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: January 1, 2013
    Inventors: Ian Fielding, John Moriarty
  • Patent number: 8343315
    Abstract: Saline waters are made suitable for use in large quantities in petroleum refining operations by evaporative desalination of a water source having a dissolved salt content of at least 30,000 ppmw with the heat liberated during the steam condensation used as low quality heat for petroleum refining operations. Sea water is most suitable for evaporative purification processes.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: January 1, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Michael Siskin, Ramesh Varadaraj
  • Patent number: 8323457
    Abstract: Systems and methods for separating a multi-component fluid are provided. The method can include introducing a multi-component fluid to a dividing wall column. The multi-component fluid can be heated to provide a first product, a second product, an intermediate distillate, and a process fluid. At least a portion of the first product can be compressed to provide a compressed first product. Heat can be indirectly transferred from the compressed first product to at least a portion of the intermediate distillate to provide a heated intermediate distillate. The heated intermediate distillate can be recycled to the dividing wall column. The compressed first product can be expanded.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: December 4, 2012
    Assignee: Kellogg Brown & Root LLC
    Inventors: Derek William Townsend, Cyril Collins
  • Publication number: 20120255852
    Abstract: When obtaining a target substance by gradually cooling the reaction liquid by cooling in a plurality of stages divided in series, and then distilling the cooled reaction liquid by distillation in a plurality of stages divided in series, this method and this apparatus include: circulating a heating medium to be used for cooling in the plurality of the stages by way of; sequentially passing the heating medium toward the most upstream cooling stage from the most downstream cooling stage of the reaction liquid; cooling the heating medium which has been discharged from the most upstream cooling stage by using the heating medium for keeping or raising the temperature of the liquid which has been discharged from the distillation in the plurality of the stages; and returning the cooled heating medium back to the most downstream cooling stage of the reaction liquid.
    Type: Application
    Filed: April 3, 2012
    Publication date: October 11, 2012
    Inventors: Masayuki KAMIKAWA, Toshiaki Matsuo, Kenichiro Oka, Takeyuki Kondo, Yasunari Sase, Masashi Tanto, Hiroyuki Ito
  • Patent number: 8268132
    Abstract: A distillation drinking fountain includes a liquid providing unit having a liquid entry; a heat-exchanging tube having liquid incoming and liquid outgoing ends and a heat-exchanging room, wherein the liquid providing unit connects to the liquid incoming end and communicates with the heat-exchanging room; a hot water tank having a body and a heating unit, wherein the body has a heating room connecting to the liquid outgoing end and communicating with the heat-exchanging room; a steam pipe having first and second ends, wherein the first end communicates with the heating room, and a part of the steam pipe is received in the heat-exchanging room; a condensing unit having a condenser tube, wherein the condenser tube has one end communicating with the second end; a water-collecting unit having a water-storing room connecting to another end of the condenser tube; and an outlet valve communicating with the water-storing room.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: September 18, 2012
    Inventor: Long-Ming Wang
  • Publication number: 20120145528
    Abstract: One exemplary embodiment can be an apparatus for treating a hydrocarbon stream having one or more compounds with a boiling point of about 140° to about 450° C. The apparatus can include an extraction zone and a regeneration zone. The extraction zone can include at least one settler. Each settler can have a height and a length. Typically the length is greater than the height. Also, the settler can form a boot, which can be adapted to receive a feed at one end. The regeneration zone may include a regenerator for an ionic liquid. The regenerator can include a column adapted to provide a regenerated ionic liquid to the extraction zone.
    Type: Application
    Filed: February 17, 2012
    Publication date: June 14, 2012
    Applicant: UOP LLC
    Inventors: David Nathan Myers, Manuela Serban, Kurt Vanden Bussche, Alakananda Bhattacharyya, Luigi Laricchia, John Patrick Brady
  • Patent number: 8052847
    Abstract: A system and method for removing water from a liquid desiccant such as a glycol used to dry cooled air in order to restore the desiccant to a purity up to around 97% in a closed continuous flow process. Liquid desiccant can be sprayed into cooled air in a conditioner where it gains moisture. The wet or gained desiccant can be optionally preheated in an economizing heat exchanger and then routed into a concentrator. Desiccant pure to around 97% can be removed from the concentrator, passed through an economizing heat exchanger to provide the preheating and returned to the conditioner holding area. The concentrator can be heated by steam or other means such as natural gas to boil the wet desiccant causing mixed vapor to enter a vertical distillation column where most of the glycol condenses out on the column packing or plates and returns to the concentrator.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: November 8, 2011
    Assignee: Niagara Blower Company
    Inventors: Matthew Koban, Phillip Rowland, Michael Harvey, Peter Demakos
  • Patent number: 7998317
    Abstract: A glycerol preparation method for preparation of medical grade glycerol from a by-product of a bio-diesel process includes a first stage phosphoric acid chemical reaction process and a posterior by-product centrifugal separation process to have the phosphoric acid chemical reaction by-product be separated into free fatty acid, potassium phosphoric acid, and a crude glycerol and methanol mixture. The crude glycerol and methanol mixture is further processed through a first step of thin film evaporation process where methanol is reclaimed, a second step of thin film evaporation process where the mixture is dehydrated, a third step of molecular distillation process where an industrial grade glycerol of purity over 95% is extracted, and a fourth step of molecular distillation process where a medical grade glycerol of purity in exceed of 99.75% that meets USP/BP standards is extracted.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: August 16, 2011
    Inventor: Wei Ming Chang
  • Publication number: 20110132740
    Abstract: The invention concerns a method for evaporation and possibly distillation of liquids by means of a heat pump. By using a heat pump (2), energy is taken from energy reservoirs (1) such as rivers, lakes, sea water, air, sun or ground heat. It is however difficult to obtain temperatures to evaporate water at atmospheric conditions. According to the invention, low temperature heat is utilized by means of a heat pump by using the condenser (high pressure part) of the heat pump to evaporate liquids in an evaporator (4?) at a pressure lower than the atmospheric pressure, and thus at a lower evaporation temperature. A pump or a compressor (10) after the evaporator (4?) together with a pressure reducing device (9) at the inlet of the evaporator (41) ensures lower evaporation pressure. To fully utilize the heat energy from the heat pump, the liquids may be preheated in heat exchangers (5) before the pressure reducing means, or as part of the same means.
    Type: Application
    Filed: August 31, 2009
    Publication date: June 9, 2011
    Inventor: Ola Heggen
  • Patent number: 7862692
    Abstract: A method of evaporating liquid in a liquid evaporating system having heat exchangers, evaporators, and steam reheaters, includes: preheating condensed water in the heat exchangers; distilling in the evaporators the condensed water from the heat exchangers, wherein the evaporators each has a horizontal plane evaporating chamber at an upper side thereof and a horizontal plane steam heating chamber at a lower side thereof, wherein heating steam is provided from an external boiler to the heating chamber; exchanging heat between the evaporating chamber and the heating chamber using a heat exchange boundary face formed in a concavo-convex shape, wherein the heat exchange boundary face is formed of a metal plate; and reheating in the steam reheaters the steam from the respective evaporators, wherein the reheaters each are coupled to a subsequent one of the heating chambers to serve as a heating source of the subsequent heating chamber.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: January 4, 2011
    Inventor: Jeong-Ho Hong
  • Publication number: 20100307910
    Abstract: A tilted multi effect distillation module comprising a plurality of distillation stages, each stage defined by a first and a second sheet member arranged in parallel to each other, the second sheet member above the first sheet member, and by one or more frame members (5) enclosing the space between the sheet members; each stage comprising an inlet (21), at least one first outlet (31) at the other end of the first sheet member, and at least one second outlet. The sheet members are plane, unin-terrupted plates of tempered glass. Separator members arranged between the sheet members may include inlets (21) and outlets (31) to/from the stages. The invention also relates to a system, where such a distillation module cooled by means of the feed liquid is combined with a solar collector of the thermo siphon type.
    Type: Application
    Filed: December 17, 2008
    Publication date: December 9, 2010
    Applicant: VKR HOLDING A/S
    Inventor: Klaus Engelhart
  • Publication number: 20100288622
    Abstract: In a method and apparatus for thermal processing of slurry, slurry is combined with a bio-mass to produce a mixture. The mixture is subjected in a heated mixer pump to a cracking temperature, thereby allowing the mixture to catalytically undergo a cracking reaction to produce a reaction mixture which is directly outgased in the mixer pump to produce an outgased portion and a solid portion. The outgased portion and the solid portion are separately discharged from the mixer pump; with the low boiling fraction of the outgased portion allowed to cool down for further processing, and the solid portion collected in a residual matter container for further processing.
    Type: Application
    Filed: July 22, 2010
    Publication date: November 18, 2010
    Inventor: Jürgen BUCHERT
  • Patent number: 7604686
    Abstract: The invention relates to a method for cooling rising vapor (3) in a desorption column (2) by means of a condenser, which is situated at the head of the desorption column, is configured as an indirect heat exchanger and is traversed by a coolant (1). According to said method, the coolant enters at the bottom of the condenser (1) and flows upwards through conduits (8) that are arranged vertically in the condenser. The coolant is enriched with hydrogen sulphide prior to its entry into the condenser (1) and after the absorption of heat, escapes as an overflow (6) from the top of the condenser (1) through upper openings (10) of the conduits (8). The invention also relates to a desorption column (2) for carrying out said method.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: October 20, 2009
    Assignee: Uhde GmbH
    Inventor: Holger Thielert
  • Patent number: 7520917
    Abstract: A microchannel device includes several mass transfer microchannels to receive a fluid media for processing at least one heat transfer microchannel in fluid communication with a heat transfer fluid defined by a thermally conductive wall, and at several thermally conductive fins each connected to the wall and extending therefrom to separate the mass transfer microchannels from one another. In one form, the device may optionally include another heat transfer microchannel and corresponding wall that is positioned opposite the first wall and has the fins and the mass transfer microchannels extending therebetween.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: April 21, 2009
    Assignee: Battelle Memorial Institute
    Inventors: Ward E. TeGrotenhuis, Robert S. Wegeng, Greg A. Whyatt, David L. King, Kriston P. Brooks, Victoria S. Stenkamp
  • Patent number: 7494584
    Abstract: An energy efficient process scheme for a highly exothermic reaction-distillation system in which the reactor is external to the distillation column and the feed to the reactor is a mixture of at least one liquid product stream from the distillation column with or without other liquid/vapor reactants. The reactor is operated under adiabatic and boiling point conditions and at a pressure that results in vaporizing a portion of the liquid flow through the reactor due to the heat of reaction. Under these conditions, reaction temperature is controlled by reactor pressure. The pressure (and hence the temperature) is maintained at a sufficiently high level such that the reactor effluent can be efficiently used to provide reboil heat for the distillation column.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: February 24, 2009
    Assignee: Catalytic Distillation Technologies
    Inventors: Arvids Judzis, Abraham P. Gelbein, John R. Adams, Christopher C. Boyer
  • Publication number: 20090032389
    Abstract: The invention relates to a semibatchwise process for the mild distillative separation of mixtures, in a first stage a column being supplied continuously with a feed and the feed being separated at least into different fractions, one of the fractions being removed continuously into a container, and, in a second step, the fraction removed into the container being recycled to the column and being separated again batchwise into different fractions.
    Type: Application
    Filed: September 9, 2008
    Publication date: February 5, 2009
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Ludwig Deibele, Dieter Heinz, Jan Thomas Leu, Johannes-Peter Schafer, Kai Fahrenkamp, Wolfgang Scheinert, Thomas Schilling, Paul Wagner
  • Publication number: 20080302650
    Abstract: This invention relates to methods and apparatus for the energy efficient separation of ethane and propane from any hydrocarbon feed, i.e., from natural gas, natural gas liquids, liquid natural gas, or from gases from refinery or petroleum plants.
    Type: Application
    Filed: June 8, 2007
    Publication date: December 11, 2008
    Inventor: Brandon Bello
  • Publication number: 20080135396
    Abstract: A feed stream is fed to a first distillation stage comprising at least one distillation column (stripper) and the distillate from the first distillation stage is fed to a second distillation column (rectifier). The feed stream is sub-divided into two streams and fed to two distillation columns, in such a way that the rectifier maintains a predefined energy balance.
    Type: Application
    Filed: April 19, 2006
    Publication date: June 12, 2008
    Applicant: WHITE FOX TECHNOLOGIES LIMITED
    Inventor: Stephan Rudiger Blum
  • Patent number: 7320745
    Abstract: An energy efficient process scheme for a highly exothermic reaction-distillation system in which the reactor is external to the distillation column and the feed to the reactor is a mixture of at least one liquid product stream from the distillation column with or without other liquid/vapor reactants. The reactor is operated under adiabatic and boiling point conditions and at a pressure that results in vaporizing a portion of the liquid flow through the reactor due to the heat of reaction. Under these conditions, reaction temperature is controlled by reactor pressure. The pressure (and hence the temperature) is maintained at a sufficiently high level such that the reactor effluent can be efficiently used to provide reboil heat for the distillation column.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: January 22, 2008
    Assignee: Catalytic Distillation Technologies
    Inventors: Arvids Judzis, Jr., Abraham P. Gelbein, John R. Adams, Christopher C. Boyer
  • Publication number: 20040060810
    Abstract: By using a dephlegmator which conducts distillation concurrently with heat exchange within at least one distillation column, or a portion of one distillation column, of a distillation cascade, the quantity of liquid holdup within the distillation apparatus is reduced and the start-up time is shortened. Consequently, the operational costs associated with startup are reduced, and productivity is improved markedly.
    Type: Application
    Filed: May 20, 2003
    Publication date: April 1, 2004
    Inventors: Koichi. Asano, Shigeru Hayashida, Nobuaki Egoshi, Hiroshi Kawakami
  • Publication number: 20040020757
    Abstract: The invention relates to a semibatchwise process for the mild distillative separation of mixtures, in a first stage a column being supplied continuously with a feed and the feed being separated at least into different fractions, one of the fractions being removed continuously into a container, and, in a second step, the fraction removed into the container being recycled to the column and being separated again batchwise into different fractions.
    Type: Application
    Filed: May 12, 2003
    Publication date: February 5, 2004
    Inventors: Ludwig Deibele, Dieter Heinz, Jan Thomas Leu, Johannes-Peter Schafer, Kai Fahrenkamp, Wolfgang Scheinert, Thomas Schilling, Paul Wagner
  • Patent number: 6334935
    Abstract: A (meth)acryloxy-bearing alkoxysilane is isolated and purified to a high purity by distilling a reaction solution containing the (meth)acryloxy-bearing alkoxysilane in a thin-layer distillation device at a temperature of 90-160° C. and a vacuum of 1-15 mmHg. The resulting alkoxysilane product does not give rise to the quality problem that the product will gradually whiten during storage owing to contact with air. The occurrence of self-polymerization of the alkoxysilane is restrained.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: January 1, 2002
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Katsuhiro Uehara, Mikio Endo, Tohru Kubota, Satoshi Uchida, Kanji Murofushi
  • Publication number: 20010050217
    Abstract: A (meth)acryloxy-bearing alkoxysilane is isolated and purified to a high purity by distilling a reaction solution containing the (meth)acryloxy-bearing alkoxysilane in a thin-layer distillation device at a temperature of 90-160° C. and a vacuum of 1-15 mmHg. The resulting alkoxysilane product does not give rise to the quality problem that the product will gradually whiten during storage owing to contact with air. The occurrence of self-polymerization of the alkoxysilane is restrained.
    Type: Application
    Filed: June 18, 1999
    Publication date: December 13, 2001
    Inventors: KATSUHIRO UEHARA, MIKIO ENDO, TOHRU KUBOTA, SATOSHI UCHIDA, KANJI MUROFUSHI
  • Patent number: 6071383
    Abstract: A distillator has an outer casing, a boiling device disposed in the outer casing, a hot water box disposed in the outer casing, a cold water box disposed in the outer casing, a first faucet disposed on the hot water box, a second faucet disposed on the cold water box, a first vapor pipe connected to the boiling device and the hot water box, a second vapor pipe connected to the hot water box and the cold water box, a water pipe connected to the boiling device and the cold water box and passing through the hot water box, the water pipe inserted in the first vapor pipe and the second vapor pipe, a heating device disposed on the boiling device, and a heater disposed on the hot water box. A connection is disposed on an end of the water pipe and passes through the cold water box.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: June 6, 2000
    Inventor: Chin-Chren Tsai
  • Patent number: 5600049
    Abstract: In the alkylation of benzene with propylene in a distillation column reactor to produce cumene the overheads from the distillation reactor are fed to a depropanizer where the unreacted benzene is separated from C.sub.3 's. Liquid propylene feed for the distillation column reactor is vaporized by indirect heat exchange with the overheads from the depropanizer to condense the overheads, thereby reducing the pressure in the depropanizer below what would be normally achieved with conventional condensing systems.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: February 4, 1997
    Assignee: Chemical Research & Licensing Company
    Inventor: Angel Sy
  • Patent number: 5582691
    Abstract: An improved ocean thermal energy conversion (OTEC) system which includes a novel combined evaporator/condenser. The combined evaporator/condenser further includes a plurality of evaporator spouts and a mist eliminator, wherein the pressure is maintained across the plurality of evaporator spouts. The OTEC system also generates fresh water as a primary product and generates only enough electricity, as a secondary product, to operate the OTEC system itself.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: December 10, 1996
    Inventors: Robert J. Flynn, George J. Cicchetti, Jonathan d'E. Coony
  • Patent number: 5306397
    Abstract: The apparatus is located almost completely under the surface of the sea. The vacua in the de-aeration and the evaporation chambers are generated by a vacuum pump and are maintained by the effects of a pressure reduction device at the inlet for warm seawater and a lifting pump at the outlet for brine. The de-aerator and the evaporator are laid out as heat exchangers and penetrated by heating tubes, which are flowed through passively by warm seawater. The immersion tube forming the steam compartment which is suspended vertically in the sea serves as a condenser. The condenser is cooled passively by cold seawater. The attachment to the bottom of the sea is performed by a single point mooring construction via an anchor chain at an anchor weight. The elevation of the water production unit is controlled automatically by means of an air chamber and an air compressor.
    Type: Grant
    Filed: October 28, 1992
    Date of Patent: April 26, 1994
    Assignee: PI Praktische Informatik GmbH
    Inventor: Edgar Schmidt
  • Patent number: 5217581
    Abstract: A distillation system where a saline fluid (10) is pumped into a pressure vessel (14), through a counterflow heat exchanger (16) and heated to boiling. A salt free distillate (20) is separated from the saline fluid (10). The concentrate valve (24) and the distillate valve (26) restrict egress flow. The concentrate valve (24), the distillate valve (26) and the heater (18) are controlled by a computer control system (32) to attain and maintain a desired value of the Ewing Number. The Ewing Number is a dimensionless measure of performance defined as the heat of vaporization of the distillate (20) at standard atmospheric conditions times the distillate (20) mass flow divided by the system power input.
    Type: Grant
    Filed: August 5, 1992
    Date of Patent: June 8, 1993
    Inventor: Frank A. Ewing
  • Patent number: 5205906
    Abstract: A process is presented for the treatment of wastewater containing non-volatile pollutants and volatile chemically oxidizable organic and inorganic pollutants. The process combines efficient evaporation to concentrate the non-volatile compounds and a catalytic oxidation reaction to convert the volatilized organic and inorganic pollutants. A condensate product may be obtained by treating wastewater according to the inventive process that is of distilled water quality and substantially free of minerals and organics.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: April 27, 1993
    Assignee: Chemical Waste Management, Inc.
    Inventors: James F. Grutsch, George A. Mortimer
  • Patent number: 5131984
    Abstract: The process for rectification of phenol prepared from crude phenol being the product of decomposition of cumene hydroperoxide and having previously been distilled to remove large portions of acetone, cumene and alpha methylstyrene which includes:feeding the column overhead vapors to a condenser, thereby condensing a major portion of the overhead vapors;withdrawing a small portion of the overhead vapors from the condenser while still in a vapor state, the small portion being relatively enriched in lights and laden with light acids;returning the condensate from the condenser to the phenol distillation column as reflux; andwithdrawing product phenol from at least one-theoretical stage below the top of the phenol distillation column, the product phenol having improved clarity when dispersed in water, clarity being at least 93 percent light transmission as measured by an electrophotometer in a water light test.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: July 21, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Chong H. Chan, William B. Fisher, Joseph D. Shrom
  • Patent number: 5076895
    Abstract: Process and apparatus for recovering clean water and solids from aqueous solids are disclosed. Aqueous solids are mixed with a low viscosity, relatively volatile, water-immiscible light fluidizing oil to obtain a mixture which will remain fluid and pumpable after removal of essentially its entire water content. The mixture of solids, water and fluidizing oil is subjected to a dehydration step by means of a plurality of mechanical vapor recompression evaporators operating in staged array whereby substantially all of the water and at least part of the light oil are evaporated and subsequently recovered. The light fluidizing oil is then largely separated from the solids. Residual fluidizing oil may be removed from the solids by direct contact with a hot blowing gas such as blowing steam. The invention is characterized by the conservation of energy through the use of heat exchangers whereby condensate gives up its heat to the feed.
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: December 31, 1991
    Assignee: Hanover Research Corporation
    Inventors: Charles Greenfield, deceased, Robert E. Casparian
  • Patent number: 4985122
    Abstract: Method and apparatus for separating volatile contaminants from a liquid to be continuously distilled. A continuous still comprises evaporator (1) having a heating coil (2), and condensor coil (6), and distillate collector (5). An entrainment device (11) removes distillate (13) from collector (5) via line (10) and reduces pressure in evaporator (1). Feed liquid (21) containing volatile contaminants is charged batchwise to a pre-chamber (20) at sub-atmospheric pressure which is then sealed (valve 22) from feed supply (21). Volatile contaminants are extracted from the charge in prechamber (20) via line (26) and entrainment device (32). Pre-chamber (20) is subsequently placed in communication (via valve 25) with evaporator (1) whereby to equilibrate pressure between evaporator (1) and pre-chamber (20).
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: January 15, 1991
    Assignee: Vaqua Limited
    Inventor: Colin W. Spencer
  • Patent number: 4978547
    Abstract: A process for producing low alcoholic wine includes the following steps: evaporating alcohol-containing wine in a vacuum evaporator so that a first mixture comprising water, alcohol and flavoring substance is separated from a second mixture having a low-alcoholic content, separating water from said first mixture in a multistage flavor substance apparatus and drawing off a third mixture comprising alcohol and flavoring substance, distilling alcohol from the third mixture, adding the water from the multistage flavor substance apparatus to a mixing vessel in an amount, which together with the low-alcohol second mixture and the flavoring substances produces a quantity of low-alcoholic wine having an alcoholic content below legally determined values for low-alcoholic wine, the process allowing only outputs of low-alcoholic wine, distilled alcohol and flavoring substances and inputs of essentially only the alcohol-containing wine.
    Type: Grant
    Filed: June 3, 1987
    Date of Patent: December 18, 1990
    Inventor: Horst Petershans
  • Patent number: 4918243
    Abstract: A portion of the best of vaporization, required to separate and recover methanol from wash water used to remove methanol from a C.sub.4 raffinate resulting from the reaction of isobutene containing C.sub.4 hydrocarbons and methanol to produce MTBE is recovered by conducting the distillation of the methanol/water mixture at a pressure of 40 to 60 psig, thereby increasing the temerature of the methanol overhead to 104.degree. to 114.degree. C. and using the reaction effluent from the MTBE reactor to cool and condense the methanol overhead, said reactor effluent being correspondingly heated prior to entry into a debutanizer tower where unreacted C.sub.4 's and methanol are removed as a raffinate and MTBE product recovered. It is this raffinate that is washed with water to recover the unreacted methanol, with the methanol/water mixture being distilled as set forth above.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: April 17, 1990
    Assignee: Chemical Research & Licensing Company
    Inventors: Lawrence A. Smith, Jr., Edward M. Jones, Jr., Dennis Hearn
  • Patent number: 4746610
    Abstract: An ethanol-producing plant and a method is provided for producing ethanol from sugars, starches, or cellulose. Some ethanol-producing plants consume more thermal energy than they produce. The present invention solves the efficiency problem by utilizing an internal combustion engine with high-efficiency mechanical drives for providing the mechanical power requirements of the ethanol-producing plant and by utilizing the thermal energy of engine coolant and exhaust to provide some, or all, of the thermal energy requirements of the ethanol-producing plant. The method includes electrically loading the internal combustion engine to increase the thermal losses of the engine to equal the thermal energy requirements of the steps of the ethanol-producing process.
    Type: Grant
    Filed: February 2, 1983
    Date of Patent: May 24, 1988
    Assignees: Douglas W. Wills, Linda Wills Maher, Nancy Wills Coffin
    Inventor: R. Wayne Smith
  • Patent number: 4690733
    Abstract: In a combination solvent extraction-steam distillation process for the recovery of aromatic hydrocarbons, the improvement comprising(a) introducing high pressure steam into a steam ejector;(b) passing the steam from step (a) to a first heat exchanger where it exchanges heat with cooler lean solvent coming from the bottom of the distillation column and is condensed;(c) returning the lean solvent from step (b) to the bottom of the distillation column;(d) passing part of the condensate from step (b) to a second heat exchanger where it exchanges heat with the warmer lean solvent coming from the bottom of the distillation column, cooling the lean solvent and vaporizing the condensate; and(e) passing the vapor from step (d) to the steam ejector in step (a).
    Type: Grant
    Filed: November 4, 1985
    Date of Patent: September 1, 1987
    Assignee: Union Carbide Corporation
    Inventors: Paulino Forte, Jose A. Vidueira
  • Patent number: 4639293
    Abstract: This invention relates to a solar still wherein the evaporation takes place in partially evacuated tubings which are heated by sunlight. The water to be distilled is supplied from a reservoir vessel which is sealed off after batch loading. The reservoir vessel is elevated above the solar collector. The water is fed into the heater tubings routed through the solar collector by gravity, through an orifice and a heat exchanger-condenser. The steam tubing branches off from the heater tubing in the solar collector vertically, and is routed through the heat exchanger-condenser. At this end, it is connected to a vertical tubing of a sizable length that empties into the distilled water reservoir. The exit end of the heater tubing routed through the solar collector is connected to another vertical tubing of a sizable length that empties into an overflow tank.
    Type: Grant
    Filed: May 6, 1983
    Date of Patent: January 27, 1987
    Inventor: Hyok S. Lew
  • Patent number: 4615769
    Abstract: The present invention provides a process for distillation of styrenes which can be stably operated without loss of energy saving effect, by leading a part or all of low boiling point component vapor from the top to a compressor to use as a heat source for a reboiler and returning the low boiling point components condensed in the reboiler or a mixture of the condensate and a part of the uncondensed vapor to a recycling line of a distillation column.
    Type: Grant
    Filed: April 25, 1985
    Date of Patent: October 7, 1986
    Assignees: Nippon Steel Chem. Co., Ltd., Hitachi, Ltd.
    Inventors: Tsukumo Horigome, Noriyuki Kawabe, Mamoru Takiue, Kunihiko Imai, Noriaki Uchiyama, Fusayuki Tsuzuki, Kenji Shimada, Masahiro Shibuya, Norimasa Hakutoh, Chiaki Watanabe, Junichi Abe
  • Patent number: 4595460
    Abstract: A liquid distillation apparatus provides recirculating flow of unevaporated liquid and recovery of energy from the liquid circulation. Liquid columns in communication with each other are provided differing liquid levels to enhance circulation of the liquid, and to provide efficient operation of the apparatus. Aeration is used to raise the level of the liquid in one of the liquid columns as well as to improve vapor generation for use in a condenser. The two liquid columns are separated from one another except for a connection at the tops and bottoms thereof to permit recirculation of the liquid. The aeration system may be operated by energy recovered from the circulating liquid.
    Type: Grant
    Filed: September 12, 1983
    Date of Patent: June 17, 1986
    Inventor: Charles F. Hurt
  • Patent number: 4556456
    Abstract: An apparatus for generating at least two vapor zones, one above the other, by vaporizing a fluid mixture having at least two compounds therein having different vaporizing temperatures. The apparatus includes a chamber with vaporizing means, and vapor condensing means. Condensate recovery means is provided for recovering the condensed vapor and the condensate recovery means is in flow communication with a separation device for receiving the condensate from the condensate recovery means. The flow communication between the condensate recovery means and the separation device is external of the chamber. The separation means revaporizes the liquid with the lower vaporizing temperature for return to the vapor zone in the upper portion of the chamber and separates as a liquid the fluid having a higher vaporizing temperature.
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: December 3, 1985
    Inventors: Michael J. Ruckriegel, James W. McCord