Still Patents (Class 202/163)
  • Patent number: 10046250
    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: Grant
    Filed: September 17, 2014
    Date of Patent: August 14, 2018
    Assignee: AQUABACK TECHNOLOGIES, INC.
    Inventor: William H. Zebuhr
  • Patent number: 8858758
    Abstract: A distiller including an evaporator having at least one evaporation surface for evaporating liquid into vapor. At least one movable liquid applicator assembly has a wiper applicator which can move over the at least one evaporation surface, for wiping and applying a thin even film of the liquid on the at least one evaporation surface for evaporation.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: October 14, 2014
    Assignee: Aquaback Technologies, Inc.
    Inventor: William H. Zebuhr
  • Patent number: 8808497
    Abstract: A reservoir evaporation system for evaporating fluid from an open reservoir of effluent containing a contaminant includes a fluid evaporator, an air pump, and an air supply conduit functionally connecting the fluid evaporator with the air pump. The fluid evaporator includes a vessel adapted to be positioned in an operative position partially submerged on the top surface of the effluent in the reservoir with a lower chamber submerged in the effluent and an upper chamber extending above the top surface of the effluent. In operation, air from the air pump mixes with the effluent inside the fluid evaporator and subsequently is discharged through exhaust openings. A fluid discharge pipe can also simultaneously discharge aerated effluent back down into the reservoir. Fluid is thereby separated from the effluent in the lower chamber by evaporation in a controlled manner that minimizes spread of contaminants to surrounding environments by wind.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: August 19, 2014
    Assignee: Heartland Technology Partners LLC
    Inventors: Bernard F. Duesel, Jr., Michael J. Rutsch, Craig Clerkin
  • Patent number: 8741101
    Abstract: A liquid concentrator having an evaporator assembly and a cyclonic separator includes features designed to improve the performance of the liquid concentrator. A settling chamber is separated from a sump of the cyclonic separator. A liquid inlet opening into a mixing chamber of the evaporator injects wastewater at low pressures. Features to aid in the cleaning of the liquid concentrator include easy open doors and clean water injection ports for cleaning interior portions of the liquid concentrator. In one feature a settling tank is disposed below the cyclonic separator and has a width that is larger than the width of the cyclonic separator. In another variation, the cyclonic separator has a tubular body with an interior that is substantially unobstructed between an inlet from the evaporator assembly and an exhaust outlet. In yet another variation, the cyclonic separator has an upper chamber that is separated from a lower chamber.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: June 3, 2014
    Assignee: Heartland Technology Partners LLC
    Inventor: Bernard F. Duesel, Jr.
  • Patent number: 8741100
    Abstract: A liquid concentrator having an evaporator assembly and a cyclonic separator includes features designed to improve the performance of the liquid concentrator. A settling chamber is separated from a sump of the cyclonic separator. A liquid inlet opening into a mixing chamber of the evaporator injects wastewater at low pressures. Features to aid in the cleaning of the liquid concentrator include easy open doors and clean water injection ports for cleaning interior portions of the liquid concentrator.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: June 3, 2014
    Assignee: Heartland Technology Partners LLC
    Inventor: Bernard F. Duesel, Jr.
  • Patent number: 8728219
    Abstract: A feed gas conditioner.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: May 20, 2014
    Assignee: Gaumer Company Inc.
    Inventors: Jack L. McClanahan, Craig S. Tiras
  • Patent number: 8668812
    Abstract: Disclosed are examples of apparatuses for evaporative purification of a contaminated liquid. In each example, there is a first vessel for storing the contaminated fluid. The first vessel includes a surface coated with a layer of superhydrophobic material and the surface is at least partially in contact with the contaminated liquid. The contaminants do not adhere to the surface as the purified liquid evaporates, thus simplifying maintenance of the apparatus.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: March 11, 2014
    Assignee: UT-Battelle, LLC
    Inventors: John T. Simpson, Steve R. McNeany, Thomas V. Dinsmore, Scott R. Hunter, Ilia N. Ivanov
  • Publication number: 20130334104
    Abstract: A method of distilling a chemical mixture, the method including receiving, in a vessel comprising a complex, the chemical mixture comprising a plurality of fluid elements, applying electromagnetic (EM) radiation to the complex, wherein the complex absorbs the EM radiation to generate heat at a first temperature, transforming, using the heat generated by the complex, a first fluid element of the plurality of fluid elements of the chemical mixture to a first vapor element, and extracting the first vapor element from the vessel, where the complex is at least one selected from a group consisting of copper nanoparticles, copper oxide nanoparticles, nanoshells, nanorods, carbon moieties, encapsulated nanoshells, encapsulated nanoparticles, and branched nanostructures.
    Type: Application
    Filed: November 30, 2011
    Publication date: December 19, 2013
    Applicant: WILLIAM MARSH RICE UNIVERSITY
    Inventors: Nancy J. Halas, Peter Nordlander, Oara Neumann
  • Publication number: 20130206573
    Abstract: A steam generation apparatus 1 including a high-temperature pipe 10 disposed extending horizontally and through which a high-temperature fluid passes; low-temperature pipes 20 disposed on both sides of the high-temperature pipe 10 in a horizontal direction and through which a low-temperature fluid having a temperature lower than that of the high-temperature fluid passes; and a thermoelectric module 30 interposed between the high-temperature pipe 10 and each of the low-temperature pipes 20 for generating electrical power using a temperature difference between the high-temperature pipe 10 and the low-temperature pipes 20, the low-temperature pipes 20 being configured such that the supplied low-temperature fluid in a liquid form is turned into steam due to heat exchange with the high-temperature fluid and is discharged from an upper portion of the low-temperature pipes 20.
    Type: Application
    Filed: February 6, 2013
    Publication date: August 15, 2013
    Applicant: SASAKURA ENGINEERING CO., LTD.
    Inventor: SASAKURA ENGINEERING CO., LTD.
  • Patent number: 8470135
    Abstract: Accumulation of polymer on equipment, which is in contact with polymerizable material during normal process operation, is minimized by the method and apparatus of the present invention. The method involves positioning and affixing the equipment, such as a pressure relief device, to process apparatus, such as a distillation column, proximate to a wetted region formed by liquid phase fluid in the process apparatus, such that the moving liquid phase fluid is at least intermittently in contact with the equipment and one or more of accumulated polymerizable material, condensate including same, and polymer, is washed off of the equipment. The apparatus of the present invention is effective for maintaining the service-readiness of the equipment, which provides for safe long-term operation of the process apparatus.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: June 25, 2013
    Assignee: Rohm and Haas Company
    Inventors: John O. Barnett, Michael Stanley DeCourcy, Michael W. Hurley
  • Publication number: 20130098848
    Abstract: Disclosed are wastewater treatment systems and methods of treating wastewater. In particular, this disclosure provides a method of lowering the biological oxygen demand, total nitrogen, total suspended solids, and phosphorous within wastewater containing human excrements. In addition to improving the quality of the wastewater on a per Liter basis, this disclosure also provides methods and systems that reduce the absolute quantity of total nitrogen, total suspended solids, and phosphorous released into the environment through effluent. The disclosed methods and systems also provide ways of reintroducing water into the environment.
    Type: Application
    Filed: August 5, 2012
    Publication date: April 25, 2013
    Inventor: George Frigon
  • Patent number: 8425732
    Abstract: A method of operating an assembly for recycling a solvent from a contaminated solvent solution including a source for the contaminated solvent solution at a level and a recycling assembly including a reservoir module and a recycler module. The reservoir module includes a reservoir and the recycler module includes a controller and a distillation assembly including a distiller having a conduit and a pressure relief valve. The pressure relief valve includes a tube. The method includes connecting the conduit to the source below the level; connecting the pressure relief valve tube to the source; pumping solvent into the reservoir, distiller and conduit to an operational level; and selecting a duty cycle of the controller to regulate a rest period after the controller operation of a distillation cycle.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: April 23, 2013
    Assignee: Safety-Kleen Systems, Inc.
    Inventors: Rudy Publ, David Kisela, Gary Myers
  • Publication number: 20120228117
    Abstract: Methods and systems are disclosed which provide for the purification of effluent from a septic system or natural water from rainwater or stormwater collection devices for the storage and reuse of water. The purified water may be supplied to water applications, such as a return conduit to a home for potable or graywater usage. The distillation unit may be powered by a local power independent of a municipal power grid and which may employ sustainable energy mechanisms. The distiller residue may undergo a volume reduction process, such as evaporation, coagulation, electrocoagulation or microfiltration. The purified water may be stored in a holding tank with sensors to monitor the water quality and water level within the tank. Alarms, release valves or relief valves may be activated in response to such monitoring.
    Type: Application
    Filed: March 8, 2012
    Publication date: September 13, 2012
    Inventor: Mindy S. Panunzio
  • Publication number: 20120205231
    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: Application
    Filed: February 13, 2012
    Publication date: August 16, 2012
    Inventors: J. Clair Batty, Neil W. Richardson, David A. Bell, Christopher M. Miller
  • Publication number: 20120197057
    Abstract: The invention concerns the control of solvent systems in processes and apparatus for the separation of aromatic hydrocarbons from non-aromatic hydrocarbons in liquid-liquid extraction, extractive distillation, and the combination thereof.
    Type: Application
    Filed: January 6, 2012
    Publication date: August 2, 2012
    Inventors: John Joseph MONSON, Arnold Hee-Sur CHOI, Dana Lynn PILLIOD
  • Publication number: 20120110789
    Abstract: A method for preparing a suspension from a separation process, wherein the suspension is made of a particulate abrasive and a liquid slurrying agent. The method includes the steps of: a) thinning the suspension in a tank with an additional slurrying agent (PEG) without adding additional water, producing a constant volume ratio between the particulate abrasive and the liquid slurrying agent; b) separating the thinned suspension into a liquid and a solid fraction in a centrifugal separator, and c) subsequent refinement or reuse of the separated liquid and solid fractions.
    Type: Application
    Filed: June 30, 2010
    Publication date: May 10, 2012
    Applicants: SIC PROCESSING AG, AKW APPARATE + VERFAHREN GMBH
    Inventors: Peter Kaniut, Georg Fritsch
  • Publication number: 20110175022
    Abstract: The present invention provides a method for preparing DMF for sucralose production, including, e.g., isolating DMF from a composition comprising DMF, water, and methanol, using a single-tower rectification system. In various embodiments of the present invention, the composition, after the removal of water and methanol, may be further dried/dehydrated, such as, by using a dehydration agent and/or filtration. The resulting substantially pure DMF may comprise at least about 98-99% DMF. The present invention further provides a method of preparing a composition comprising anhydrous sucrose for sucralose production, which may comprise mixing regular sucrose with a water-containing DMF composition, and drying the resulting sucrose-DMF composition. Also provided is a single-tower separation system for isolating DMF from a composition comprising DMF, water, and methanol.
    Type: Application
    Filed: October 21, 2010
    Publication date: July 21, 2011
    Inventors: David Losan Ho, Zhenghao Wan
  • Patent number: 7927463
    Abstract: The present invention provides a novel tritium distillation device, which includes a container, a radiator covered on top of the container with a protrusion at the bottom, a conduit penetrating the container with an inlet and an outlet, the inlet being arranged in correspondence with the protrusion, and a heating device fixed below the container. The method of operating the tritiated water distillation includes the steps of adding environmental tritiated water in the container, covering the radiator on top of the container closely, heating environmental tritiated water to cause tritiated water steam to be condensed to the bottom of the radiator, and collecting the tritiated water condensation dropped from the protrusion with conduit. The present invention uses a simple structure to ease assembly and reduce the cost of cooling water source.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: April 19, 2011
    Assignee: Institute of Nuclear Energy Research
    Inventor: Hsin-Fa Fang
  • Publication number: 20110031100
    Abstract: The present invention provides composite membranes for membrane distillation and related methods of manufacture. In particular, there is provided a composite hydrophilic/hydrophobic membrane comprising a hydrophilic polymer layer and a hydrophobic polymer layer comprising fluorinated surface-modifying macromolecules, wherein said composite membrane has a high vapour flux. Also provided herein are methods of manufacturing and optimizing the composite membranes and a membrane distillation system comprising the composite membranes.
    Type: Application
    Filed: December 2, 2009
    Publication date: February 10, 2011
    Applicant: UNIVERSITY OF OTTAWA
    Inventors: Moh'd Rasool QTAISHAT, Mohamed KHAYET, Takeshi MATSUURA
  • Publication number: 20110024283
    Abstract: A method for purifying water and generating ammonia liquor is disclosed. Hydrogen, oxygen, organic matter contaminated water vapor, and ambient air, containing nitrogen, are provided to a combustion chamber. The hydrogen is combusted in the oxygen in the combustion chamber with the contaminated water vapor and nitrogen. The nitrogen is fixated. Water vapor is produced. The contaminated water vapor is heated to decontaminate the contaminated water vapor. The produced water vapor, fixated nitrogen, and organic matter decontaminated water vapor are exhausted from the combustion chamber. The generated water vapor, fixated nitrogen, and decontaminated water vapor are condensed to obtain ammonia liquor. Water is evaporated from the ammonia liquor to form purified water vapor and concentrate the ammonia liquor.
    Type: Application
    Filed: October 13, 2010
    Publication date: February 3, 2011
    Inventor: Bruce H. Peters
  • Patent number: 7713319
    Abstract: A fluid recycling system includes a separator for physically separating glycol from at least a portion of other substances mixed with the glycol to produce a first effluent stream having separated glycol and a second effluent stream having the other substances and residual glycol. A catalytic reactor receives the second effluent stream and chemically reacts the other substances and residual glycol to produce a hydrogen stream and a remainder stream.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: May 11, 2010
    Assignee: Hamilton Sunstrand Corporation
    Inventors: Rakesh Radhakrishnan, Steven J. Moss, Per-Anders K. Lof, Michael K. Sahm, Joseph J. Sangiovanni, Thomas Henry Vanderspurt
  • Publication number: 20090283396
    Abstract: A system for treating feedwater includes a fluidized bed heat exchanger unit connected to receive feedwater and a flash concentrator column connected to receive feedwater discharged from the fluidized bed heat exchanger unit. A spray dryer is provided to receive a solids/liquid slurry discharged from the flash concentrator column. Feedwater can be treated by converting dissolved solids in the feedwater to suspended solids, vaporizing a portion of the feedwater to produce a solids/liquid slurry, and separating solids from the solids/liquid slurry.
    Type: Application
    Filed: June 29, 2009
    Publication date: November 19, 2009
    Inventors: Robert E. Bailie, Robert R. Wright
  • Patent number: 7563360
    Abstract: A top temperature T1 of a distillation tower 1 is held below a liquefying temperature of a light fraction by returning a part of an exhaust gas W, which is cooled by a condenser 5, to the upper zone of the distillation tower 1. A bottom temperature T2 is raised up to 300° C. at highest by returning a part of a liquid product P from a re-boiler 3 to a lower zone of the distillation tower 1. When a liquid hydrocarbon L comes in countercurrent contact with a stripping gas G inside the distillation tower 1 with the temperature profile that an inner temperature gradually falls down along an upward direction, mercury is efficiently transferred from the liquid L to a vapor phase without effusion of the light fraction in accompaniment with the exhaust gas W.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: July 21, 2009
    Assignee: Japan Petroleum Exploration Co., Ltd.
    Inventors: Yoshiyuki Yamaguchi, Senichiro Kaku, Kazutoshi Chaki
  • Patent number: 7528290
    Abstract: A process is disclosed for recovering 1-butene from a feed steam comprising n-butane, isobutane and butene isomers using a single, divided wall distillation column. The disclosed process includes introducing the feed steam into an inlet of a first side of a distillation column, wherein the distillation column comprises a top, a bottom and a center dividing wall extending between the bottom and the top of the column and dividing the column into the first side and a second side. The process includes taking off an isobutane stream from the top of the second side of column, taking off a 1-butene stream as a bottoms stream from the second side of the column, and taking off a combination 2-butene and n-butane stream as a bottom stream from the first side of column.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: May 5, 2009
    Assignee: UOP LLC
    Inventors: Joseph E. Zimmermann, Dennis E. O'Brien
  • Patent number: 7081185
    Abstract: The object of this invention to provide an improved arrangement that enables to prevent adhesion of polymer on or around the inner wall of a purification apparatus directly equipped on the outer wall thereof with an attachment such as a support by suppressing local temperature lowering inside the apparatus due to the existence of the attachment. The present invention provides a purification apparatus comprising an attachment directly mounted on an outer wall of the apparatus; and a covering material made of a low heat conductive material which partly or entirely covers the outer wall of the apparatus, and which partly or entirely covers the attachment.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: July 25, 2006
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Yukihiro Matsumoto, Takeshi Nishimura
  • Patent number: 6966973
    Abstract: The present invention provides an apparatus for producing (meth)acrylic acid and a process for producing (meth)acrylic acid with this apparatus wherein the apparatus enables the production of (meth)acrylic acid stably for a long period of time by effectively inhibiting the polymerization of (meth)acrylic acid in its production process (for example, in a reboiler). At least a part of the apparatus is made of a nickel-chromium-iron alloy with a molybdenum content of 3 to 20 mass %, but not including 3 mass %, or with a molybdenum content of 1 to 4 mass % and a copper content of 0.5 to 7 mass %.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: November 22, 2005
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Sei Nakahara, Kazuhiko Sakamoto, Yukihiro Matsumoto, Kenji Sanada, Masatoshi Ueoka
  • Patent number: 6893540
    Abstract: An apparatus for and method of distillation uses a high temperature thermoelectric device to heat a liquid, such as water to vapor (steam) and cool the vapor to a purified, distilled liquid. Distillation system has no moving parts, thereby increasing reliability while reducing noise and maintenance. Liquid in a container has a heating section on the container extending into it to boil it into a vapor that is fed to a condenser section disposed on the container adjacent to the heating section. A thermoelectric section provided with a Peltier effect device is interposed between the heating section and condenser section. The Peltier effect device has one side in contiguous contact with the condenser to transfer heat from it and another side is in contiguous contact with the heating section to transfer heat to it to boil the liquid into the vapor and feed the vapor through the condenser that condenses it into distilled liquid.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: May 17, 2005
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Brian Stout, Robert Peebles
  • Publication number: 20030062253
    Abstract: The object of this invention to provide an improved arrangement that enables to prevent adhesion of polymer on or around the inner wall of a purification apparatus directly equipped on the outer wall thereof with an attachment such as a support by suppressing local temperature lowering inside the apparatus due to the existence of the attachment. The present invention provides a purification apparatus comprising an attachment directly mounted on an outer wall of the apparatus; and a covering material made of a low heat conductive material which partly or entirely covers the outer wall of the apparatus, and which partly or entirely covers the attachment.
    Type: Application
    Filed: September 26, 2002
    Publication date: April 3, 2003
    Inventors: Yukihiro Matsumoto, Takeshi Nishimura
  • Patent number: 5670026
    Abstract: A method of in-service cleaning an operating column by inserting into the column a lance through which a compatible liquid is dispensed at a pressure of at least about 5000 psig. Also disclosed is apparatus which comprises a column through which a fluid can pass, nozzles mounted on the outside of the column, where each nozzle comprises a flange welded to the column and a valve bolted to the flange, a lance which can be inserted through the nozzles into the column and means for dispensing a liquid through the lance at a pressure of at least about 5000 psig.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: September 23, 1997
    Inventor: Charles R. Rutan
  • Patent number: 5650050
    Abstract: The sea water to be desalted is fine-sprayed through nozzles (3) against an underside (1b) of a plate-shaped element (1). The element (1) may, for example, be an aluminum plate forming a heat transfer medium and is exposed to solar radiation through glass cover plates (15). The water sprayed on the underside (1b) is distributed over the surface of the element (1) and is evaporated by the heat stored in this element. The water vapor passes through an outlet (27) to a condenser (10) in which it is condensed and finally through an outlet (12) in the form of fresh water which then is available, for example, for irrigating green spaces. The sea water to be desalted is preferably sprayed against the underside of the element (1) for only a few seconds at predetermined intervals. To clean the element (1), sea-water may be sprayed every hour for, for example, 1 to 1.5 minutes against the underside of the element (1) in order thus to rinse away deposited salt and impurities.
    Type: Grant
    Filed: January 26, 1995
    Date of Patent: July 22, 1997
    Inventor: Willy Kaufmann
  • Patent number: 5512140
    Abstract: This invention discloses a method of in-service cleaning an operating column by inserting into the column a lance through which a compatible liquid is dispensed at a pressure of at least about 5000 psig. Also disclosed is apparatus which comprises a column through which a fluid can pass, nozzles mounted on the outside of the column, where each nozzle comprises a flange welded to the column and a valve bolted to the flange, a lance which can be inserted through the nozzles into the column and means for dispensing a liquid through the lance at a pressure of at least about 5000 psig.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: April 30, 1996
    Assignee: Occidental Chemical Corporation
    Inventor: Charles R. Rutan
  • Patent number: 5354428
    Abstract: Method and apparatus for the distillation of liquids which is particularly suited for the removal of soluble impurities and insoluble and non-volatile particles of 10 microns to 0.2 micron or less in size. A substantially elongated distillation chamber having walls equipped with axially disposed concentric boiling rings spaced from the walls near the bottom, and a packing stop, packing redirector rings for condensed vapor, and a reflux condenser in the upper part of the distillation chamber provide, during distillation, a smooth convective upward flow of distilling liquid and vapor proximate the walls and boiling rings and a smooth convective downward flow of distilling liquid and vapor substantially centrally of the distillation chamber.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: October 11, 1994
    Assignee: Athens Corp.
    Inventors: R. Scot Clark, Joe G. Hoffman, John B. Davison, David W. Persichini, Wallace I. Yuan, Bruce A. Lipisko, Alan H. Jones, Alan W. Jones
  • Patent number: 4947983
    Abstract: A distillation apparatus includes a heating device, an inlet for medium to be distilled, a vapor outlet, a distillation space between the distillation medium inlet and the vapor outlet and a drain for the separate components of the solvent, arranged in the bottom part of the distilling space and extending from same. In a heating vessel, which is able to be filled with a heating medium to be heated by the heating device, there is a downwardly extending down tube joined with the inlet and an up tube extending upwards to the vapor inlet. During operation the two tubes are surrounded by heating medium and form the distillation space. The drain is arranged under the junction between the up and down tubes and is provided with a U-trap.
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: August 14, 1990
    Inventor: Walter Jost
  • Patent number: 4818345
    Abstract: A distillation apparatus intended for distilling liquid, primarily water, comprising a distillation unit which includes a porous, hydrophobic membrane (2) which is pervious to steam, or vapor, but impervious to liquid, and a condensation surface (3) located at a distance from the membrane, such as to present an air gap (4) between the membrane and the condensation surface, the distillation apparatus further comprising units for conducting the liquid (20) to be distilled on the membrane surface remote from the air gap (4), and a unit for conducting a liquid (22) which is colder than the first mentioned liquid (20) on the side of the condensation surface (3) remote from the air gap (4). According to the invention the distance (L) between the membrane (2) and the condensation (3) lies in the range of about 0.2 mm-about 1 mm, and the thickness (b) of the membrane (2) is less than about 0.5 mm.
    Type: Grant
    Filed: February 10, 1987
    Date of Patent: April 4, 1989
    Inventor: Ann-Sofi Jonsson
  • Patent number: 4488933
    Abstract: Disclosed herein is a process and apparatus for safely distilling relatively small batches of organic compounds such as paint solvents by directly and safely heating the compounds in a vessel having a relatively thick bottom with electrical heating units cast in it and a relatively thick side wall integrally attached to the bottom. The side wall may be integrally attached to the bottom by a weld that penetrates the joint between the side wall and bottom preferably by 100% in order to provide a complete heat transfer from the bottom to the side wall. The vessel is so designed so as to provide a relatively uniform temperature throughout the inner periphery of the vessel thereby avoiding hot spots and insuring that the hottest spot of the inner periphery of the vessel does not exceed the auto ignition temperature of the compound being processed.
    Type: Grant
    Filed: August 27, 1982
    Date of Patent: December 18, 1984
    Assignee: Finish Engineering Company, Inc.
    Inventors: Charles K. Claunch, David Bowes
  • Patent number: 4478685
    Abstract: Apparatus is provided for converting sea or other undrinkable waters to drinkable water without the use of driven or moving parts. Reliance upon gradient effects is made to effect the vaporization of, for example, sea water, followed by the condensation of the vapor to form distilled water. Gradient effects are achieved through the provision of differentials in the thermal conductivity, capillary activity, adsorptive, absorptive and/or pressure characteristics of particulate materials, or combinations of such physicals. For example, a column is packed with material graded as to its conductivity, the least thermally conductive material being nearest the cold or ambient water that is to be purified. In packing the column each successive layer of material has a greater thermal conductivity than the layer beneath it with the most conductive being at the top near the outlet arm of the column.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: October 23, 1984
    Inventor: C. Walter Mortenson
  • Patent number: 4333523
    Abstract: Disclosed is a novel apparatus for use in the rapid refluxing of low boiling liquids. The apparatus comprises a central chamber for the reception of hot gases from a reaction vessel, the chamber being surrounded by a cooling jacket. The central chamber comprises a lower primary condenser of 2 or more bulbous portions connected to and in fluid communication with each other and with a curvilinear column serving as a secondary condenser.
    Type: Grant
    Filed: November 1, 1979
    Date of Patent: June 8, 1982
    Assignee: Miles Laboratories, Inc.
    Inventor: Harold E. Hartzler
  • Patent number: 4316772
    Abstract: A composite membrane separates a distilland and a distillate, such as salt water and fresh water. The composite membrane comprises a thin lyophobic microporous layer or membrane and a thin lyophilic layer or membrane on both sides of the lyophobic membrane or on the distillate side. Evaporation and condensation takes place within the micropores of the lyophobic membrane. The lyophilic layer on the distilland side prevents intrusion of distilland into the pores of the lyophobic layer. The lyophilic layer on the distillate side changes the surface curvature of the liquid/vapor interface in a manner which enhances the distillation rate through the membrane.
    Type: Grant
    Filed: February 4, 1980
    Date of Patent: February 23, 1982
    Inventors: Dah Y. Cheng, Steve J. Wiersma
  • Patent number: 4167475
    Abstract: A process, apparatus and control system for the fractionation of a hydrocarbon feed stream containing relatively nonvolatile impurities. A sidecut liquid stream which is substantially free of the impurities is withdrawn below the feed point. The liquid derived from the feed stream is confined to a first lateral half of the fractionation column to prevent the transfer of the nonvolatile impurities to the second lateral half from which the sidecut is removed. Liquid descending from above the feed point is collected and distributed between the two lateral halves of the column in response to temperature measurements taken in the two halves to thereby equalize liquid flow rates in the two halves. The flow of vapor between the two halves is not obstructed.
    Type: Grant
    Filed: January 12, 1978
    Date of Patent: September 11, 1979
    Assignee: UOP Inc.
    Inventors: George R. Winter, III, Mark C. Anderson