Miscellaneous Separatory Patents (Class 203/99)
  • Patent number: 9109418
    Abstract: A method and apparatus is provided which will improve the integrity of a pipeline by removing moisture and solid particulates that have been entrapped within a gas originating from an underground storage cavern following pressure reduction before introducing the gas into the pipeline.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: August 18, 2015
    Assignee: Air Liquide Large Industries U.S. LP
    Inventor: Dennis Norris
  • Publication number: 20150101922
    Abstract: A system for molecular targeting and separating includes a microwave energy source; a vapor source; a column configured and positioned to receive microwave energy from the microwave energy source and vapor from the vapor source; and a condenser, the condenser in communication with the column, the condenser configured to condense the vapor after the vapor receives the microwave energy.
    Type: Application
    Filed: December 16, 2014
    Publication date: April 16, 2015
    Inventor: Donald W. Ramer
  • Patent number: 8992737
    Abstract: A trihalosilane refining device and a trihalosilane refining method are provided. The trihalosilane refining device can be useful in obtaining high-purity trihalosilane from a feed containing a trihalosilane while consuming a small amount of energy.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: March 31, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Sung Kyu Lee, Joon Ho Shin, Jong Ku Lee, Sung Kyun Kim
  • Patent number: 8974642
    Abstract: A trihalosilane refining device and a trihalosilane refining method are provided. The trihalosilane refining device can be useful in obtaining high-purity trihalosilane from a feed containing a trihalosilane while consuming a small amount of energy.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: March 10, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Sung Kyu Lee, Joon Ho Shin, Jong Ku Lee, Sung Kyun Kim
  • Patent number: 8968521
    Abstract: A trihalosilane refining device and a trihalosilane refining method are provided. The trihalosilane refining device can be useful in obtaining high-purity trihalosilane from a feed containing a trihalosilane while consuming a small amount of energy.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: March 3, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Sung Kyu Lee, Joon Ho Shin, Jong Ku Lee, Sung Kyun Kim
  • Patent number: 8968524
    Abstract: The invention relates to a method producing a portioned column by forming a first segment and a third segment into arcuate segments, and attaching these arcuate segments to a second z-shaped segment to from two contiguous volumes with approximately semi-circular cross-sections that combine to form a partitioned, approximately cylindrical segment.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: March 3, 2015
    Assignee: L'Air Liquid Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Fabrice Del Corso, Golo Zick
  • Patent number: 8961744
    Abstract: In a system and method for recycling a high-boiling-point waste photoresist stripper generated in processes of manufacturing LCDs or semiconductor devices, an expensive high-boiling-point stripper solvent can be easily recycled at high yield and high-purity electronic grade.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: February 24, 2015
    Assignee: Korex Corporation
    Inventors: Ho Kyung Lee, In Gyoo Lee, Myung Jun Park, Kee-Kahb Koo, Jae-Kyeong Kim
  • Patent number: 8932434
    Abstract: There are provided a dividing wall distillation column for producing high-purity acrylic acid, and a fractional distillation method using the same. The dividing wall distillation column includes a condenser, a reboiler and a main column having a dividing wall. Here, the main column is divided into a column-top zone, an upper feed zone, an upper outflow zone, a lower feed zone, a lower outflow zone and a column-bottom zone. Accordingly, since one distillation column can be used to realize the same effect as that obtained from the use of two distillation columns, the dividing wall distillation column can have an effect of reducing the costs of equipment to produce high-purity acrylic acid, as well as an energy-reducing effect, compared to a conventional process system.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: January 13, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Sung Kyu Lee, Jong Ku Lee, Joon Ho Shin
  • Patent number: 8894823
    Abstract: The present application relates to a method of manufacturing isopropyl alcohol. Isopropyl alcohol with high purity is obtained from a feed including water and isopropyl alcohol. In addition, energy used in a process of obtaining the isopropyl alcohol, and investment cost for manufacturing facilities are reduced.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: November 25, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Sung Kyu Lee, Jong Ku Lee, Joon Ho Shin
  • Patent number: 8888964
    Abstract: A dividing wall distillation column for producing high-purity n-butanol and a method for the production of high-purity n-butanol by fractional distillation are disclosed. More particularly, the method which provides a dividing wall distillation column with crude n-butanol as a feed to perform a fractional distillation of n-butanol and an apparatus thereof are disclosed. The dividing wall distillation column exhibits the effects of a two distillation column from only one distillation column, thereby reducing energy and the costs of installing the apparatus as compared to conventional distillation systems.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: November 18, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Kyu Lee, Joon-Ho Shin, Jong-Ku Lee
  • Patent number: 8852405
    Abstract: A dual-mode dividing wall column capable of mode switching between a dividing wall column operating mode and a conventional column operating mode, and a distillation method using the dual-mode dividing wall column, wherein when compared to the existing conventional column, the invention can reduce device costs and energy and improve productivity is described. Furthermore, since a mutual conversion between a dividing wall column operating mode and a conventional column operating mode is enabled without shutting down a process, an economic loss which can occur during shutdown caused by the malfunction of a device can be prevented.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: October 7, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Sung Kyu Lee, Joon Ho Shin, Jang Ku Lee
  • Patent number: 8845863
    Abstract: Processes and systems for purifying ethylene oxide, including introducing a feed stream including ethylene oxide to a heat exchanger to heat the feed stream, feeding the heated feed stream to a distillation apparatus base below a first stage, removing from the distillation apparatus an impurity fraction as a top exit stream from the distillation apparatus located at a top take-off on the distillation apparatus, removing from the distillation apparatus an ethylene oxide stream of 99.7 weight percent purity, based on the total weight of the ethylene oxide stream, from the distillation apparatus, and removing from the distillation apparatus an aldehyde enriched fraction as a bottom stream from the distillation apparatus, where the aldehyde enriched fraction is fed directly to a glycol reactor.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: September 30, 2014
    Assignee: Dow Technology Investments LLC
    Inventors: Clarence P. Stadlwieser, Bernie B. Osborne, John P. Dever, Harvey E. Andresen, Michael L. Hutchison, Steven R. Osborne, Liping L. Zhang, Michael Habenschuss, Andrew Addie, Donald R. Culp
  • Patent number: 8771479
    Abstract: Provided is a distillation column assembly combining two distillation columns used in a distillation process. The distillation column assembly is characterized in that a dividing wall column (DWC) that has one inflow point, three outflow points and an internal dividing wall and a typical distillation column that has two inflow points and two outflow points are sequentially connected to each other, and in that streams of the two outflow points of the DWC are introduced into the two inflow points of the typical distillation column. The distillation column assembly improves an existing process apparatus based on two distillation columns, so that it can be easily installed, has a high energy-saving effect, and can be applied to the case where a separation pressure difference and a utility temperature difference are great.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: July 8, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Sung Kyu Lee, Jong Ku Lee, Joon Ho Shin
  • Patent number: 8618334
    Abstract: Methods for continuously preparing cyclohexanone from phenol make use of a catalyst having at least one catalytically active metal selected from platinum and palladium. The process includes enriching phenol in a distillation fraction as compared to a subsequent fraction, wherein the subsequent fraction includes phenol and side-products having a higher boiling point than phenol. Distillation is carried out in a vacuum distillation column equipped with trays in the lower part of the column. In an upper part of the column, i.e., in the part above the feed inlet, packing material is present instead of trays in at least part thereof. The packing material has a comparable or improved separating efficiency, and provides a reduction of the pressure drop by at least 30%, preferably more than 50%, as compared to the case with trays in the upper part, under otherwise similar distillation conditions.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: December 31, 2013
    Assignee: DSM IP Assets B.V.
    Inventors: Marleen Horsels, Rudy Francols Marla Jozef Parton, Johan Thomas Tinge
  • 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: 20130303806
    Abstract: The present invention relates to a process for efficient purification of MTBE-containing mixtures and for preparation of isobutene by cracking of MTBE-containing mixtures.
    Type: Application
    Filed: October 12, 2011
    Publication date: November 14, 2013
    Applicant: Evonik Oxeno GmbH
    Inventors: Markus Winterberg, Dirk Roettger, Armin Rix, Reiner Bukohl, Christian Boeing
  • Publication number: 20130284586
    Abstract: The present invention relates to a dividing wall column for preparing high-purity 2-ethylhexyl-acrylate, and a method for distilling 2-ethylhexyl-acrylate. The dividing wall column of the present invention provides an effect having two distillation columns through one distillation column, thereby having an effect of reducing energy compared to the conventional processing device in preparing high-purity 2-ethylhexyl-acrylate and an effect of reducing equipment costs of the device.
    Type: Application
    Filed: June 27, 2013
    Publication date: October 31, 2013
    Applicant: LG CHEM, LTD.
    Inventors: Sung Kyu LEE, Joon Ho SHIN, Jong Ku LEE, Sung Kyun KIM
  • Patent number: 8562792
    Abstract: Dividing wall fractional distillation columns and methods of operating these columns with greater flexibility, especially in terms of the ability to adjust the composition of the heartcut, intermediate or sidecut product fraction, are described. In particular, this composition may be advantageously “biased” toward higher or lower molecular weight components, depending on operating needs. Changes in feedstock composition may also be managed more effectively. These benefits are obtained by varying the flow rate of vapor and liquid to each side of the dividing wall. The vapor flowrate rising from an undivided portion of the column interior below the dividing wall is varied to the feed and/or product sections on opposite sides of the dividing wall. Also, the liquid flowrate falling from an undivided portion of the column interior above the dividing wall is varied to the feed and/or product sections on opposite sides of the dividing wall.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: October 22, 2013
    Assignee: UOP LLC
    Inventors: Stephen Thomas King, Joe Haas
  • Patent number: 8557087
    Abstract: The present invention relates to a process for the separation by distillation of a hydrocarbon-containing feed stream containing olefin monomer, co-monomer and hydrocarbon diluent. The present invention also relates to a distillation system including a distillation column for carrying out the process according to the invention.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: October 15, 2013
    Assignee: Total Petrochemicals Research Feluy
    Inventor: Denis Mignon
  • Patent number: 8523965
    Abstract: Methods, systems and devices for treating and remediating or abating carbon containing wastes to produce clean water, non-toxic, non-hazardous ash has been taught and described, the method, systems and devices are particularly suited to treating aqueous hydrocarbon containing waste streams generated in the oil and gas drilling and hydrofracking industry including electrocoagulating which removes flocculent, the flocculent is removed and then the aqueous stream is separated into light fractions and heavy fractions. The heavy fraction and flocculent are recombined and then gasified to produce syngas and ash, the syngas can then be used in generating power.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: September 3, 2013
    Assignee: Doulos Technologies LLC
    Inventors: Coyte R Jones, Robert C Jones
  • Patent number: 8518245
    Abstract: One exemplary embodiment can be a process for separating a plurality of naphtha components. The process can include first and second columns. The first column may include a dividing imperforate wall with one surface facing a feed and another surface facing a side stream. Typically, the wall extends a significant portion of the column height to divide the portion into at least two substantially vertical, parallel contacting sections. Also, the second column can communicate with the first column so as to provide a feed to or receive a feed from the first column. Generally, the second column is non-divided. The process may provide at least four product streams.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: August 27, 2013
    Assignee: UOP LLC
    Inventors: Michael A. Schultz, Xin X. Zhu
  • Patent number: 8496832
    Abstract: A process for wastewater treatment, comprising aerating and mixing wastewater containing organic and/or inorganic pollutants and bentonite clay in a vessel at a first temperature and for a time sufficient to reduce the concentration of said pollutants, raising the temperature of said mixture to at least 100° C. to evaporate water vapor, passing said water vapor through a fritted membrane and into a condenser, and collecting condensed water.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: July 30, 2013
    Assignee: King Abdulaziz City for Science and Technology
    Inventor: Saad A. Al-Jlil
  • Patent number: 8449729
    Abstract: A process for converting a tertiary halogenated hydrocarbons in a tertiary halogenated hydrocarbon-containing stream to a corresponding unhalogenated or less-halogenated unsaturated hydrocarbon product with the release of hydrogen halide involves contacting the tertiary halogenated hydrocarbon with a sorbent-type dehydrohalogenation catalyst in a reaction zone and optionally passing a stripping gas through the reaction zone to remove vapor phase reaction products from the reaction zone.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: May 28, 2013
    Assignee: Dow AgroSciences, LLc
    Inventors: Michael L. Trippeer, Timothy C. Frank, Patrick H. Au-Yeung, Jason L. Bronkema, Robin K. Johnston, Mukund R. Patel, Bruce S. Holden, Terrence McCabe, Daniel A. Hickman
  • Patent number: 8440058
    Abstract: Method for concentrating nitrogen isotope to obtain a final product nitrogen, in which the stable nitrogen isotope, 15N, is concentrated, by low-temperature distillation of raw material nitrogen containing trace amounts of oxygen and argon using a plurality of distillation columns in a cascade arrangement. An argon-oxygen mixture is discharged from the bottom of the final column and 15N-concentrated nitrogen is extracted from a lower intermediate point of the final column. The flow rate of the argon-oxygen mixture discharged from the bottom of the final column is controlled based on the reading of a thermometer installed below the point where the final product 15N-concentrated nitrogen is extracted, thereby providing a stable nitrogen product.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: May 14, 2013
    Assignee: Taiyo Nippon Sanso Corporation
    Inventor: Hitoshi Kihara
  • Patent number: 8435387
    Abstract: The present invention generally relates to the small-scale separation of a mixture of two or more components with different boiling points into enriched fractions. In some embodiments, a first and second fluid (e.g., a liquid and a gas, a liquid and a liquid, etc.) are passed through a channel. The first fluid may include at least two components, each with a unique boiling point. Upon contacting the first and second fluids within the channel, at least a portion of the most volatile of the components in the first fluid (i.e., the component with the lowest boiling point) may be transferred from the first fluid to the second fluid. In some instances, the transfer of the volatile component(s) from the first fluid to the second fluid may be expedited by heating, in some cases above the boiling point(s) of the component(s) to be transferred from the first fluid to the second fluid. Contact between the first and second fluids may be maintained, for example, via segmented flow, bubbling flow, etc.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: May 7, 2013
    Assignee: Massachusetts Institute of Technology
    Inventors: Ryan L. Hartman, Hemantkumar R. Sahoo, Klavs F. Jensen
  • Patent number: 8414744
    Abstract: The present invention relates to a continuous process for preparing racemic or optically active menthol in pure or enriched form by distillatively separating menthol from substance mixtures which comprise essentially menthol and diastereomers thereof. This distillatiive separation is performed in a dividing wall column with 50 to 300 theoretical plates and one or more side draw points at an absolute operating pressure of 5 to 500 mbar.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: April 9, 2013
    Assignee: BASF SE
    Inventors: Gunnar Heydrich, Gabriele Gralla, Klaus Ebel, Wolfgang Krause, Nawid Kashani-Shirazi
  • 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
  • Patent number: 8323581
    Abstract: The apparatus includes at least two adsorptive separation zones to separate para-xylene from a feed stream comprising C8 aromatic hydrocarbons and at least one C9 aromatic hydrocarbon component. The first adsorptive separation zone delivers a raffinate stream to a raffinate distillation zone and an extract stream to an extract distillation zone. The raffinate distillation zone delivers a stream to the second adsorptive separation zone and at least one of the extract distillation zone and raffinate distillation zone delivers a recycle stream to the first adsorptive separation zone.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: December 4, 2012
    Assignee: UOP LLC
    Inventors: Leonid Bresler, Stanley J. Frey
  • Patent number: 8293075
    Abstract: Processes for the continuous fractional distillation of a mixture containing morpholine (MO), monoaminodiglycol (ADG), ammonia and water from a reaction of diethylene glycol (DEG) with ammonia, the process including: (i) separating off ammonia from the mixture at a top of a first distillation column K10; (ii) feeding a bottom fraction from K10 to a second distillation column K20, in which water and an organic product are separated off at the top at a temperature at the top in the range from 45 to 198° C. and a pressure in the range from 0.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: October 23, 2012
    Assignee: BASF SE
    Inventors: Helmut Schmidtke, Oliver Buβmann, Ralph Versch, Udo Rheude, Uwe Leyk, Manfred Julius, Martin Rudloff, Erhard Henkes
  • Patent number: 8282793
    Abstract: The present invention relates to a continuous process for preparing neral (cis-citral) in pure or enriched form by distillatively separating neral from substance mixtures comprising essentially neral and geranial (trans-citral). This distillative separation is performed in a dividing wall column or in a connection of two distillation columns in the form of a thermal coupling.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: October 9, 2012
    Assignee: BASF SE
    Inventors: Gunnar Heydrich, Nawid Kashani-Shirazi, Christoph Jäkel, Joachim Schmidt-Leithoff
  • Patent number: 8273220
    Abstract: A distillation column is disclosed. The column includes a plurality of rectification zones and corresponding stripping zones. Each rectification zone is linked to a heat pump or a stage of a heat pump. Overhead material from the top rectification zone is compressed and used to heat bottoms liquid from the bottom stripping zone. Similarly, overhead material from a lower rectification zone is compressed and used to heat liquid taken from the uppermost or top stripping zone. Optionally, overhead material from a middle rectification zone is compressed and used to heat liquid from a middle stripping zone. A single multiple stage heat pump compressor may be utilized as opposed to a plurality of heat pumps. Because the heat exchanger from each rectification-stripping zone pair has a lower duty, economical stab-in heat exchangers may be utilized.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: September 25, 2012
    Assignee: UOP LLC
    Inventor: Paul A. Sechrist
  • Patent number: 8246793
    Abstract: Processes for the continuous fractional distillation of a mixture comprising morpholine (MO), monoaminodiglycol (ADG), ammonia and water from a reaction of diethylene glycol (DEG) with ammonia, the process comprising: (i) separating off ammonia from the mixture at a top of a first distillation column K10; (ii) feeding a bottom fraction from the first distillation column to a second distillation column K20, wherein water and an organic product are separated off at a top of the second distillation column at a top temperature of 45 to 198° C. and a pressure in the range from 0.1 to 15 bar; (iii) feeding a bottom fraction from the second distillation column to a third distillation column K30, wherein morpholine and an organic product having a boiling point of <140° C. (1.013 bar) are separated off at a point selected from a top and a side offtake of the third distillation column, and monoaminodiglycol and an organic product having a boiling point of >190° C. (1.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: August 21, 2012
    Assignee: BASF SE
    Inventors: Helmut Schmidtke, Oliver Buβmann, Ralph Versch, Udo Rheude, Uwe Leyk, Manfred Julius, Martin Rudloff, Erhard Henkes
  • Patent number: 8246816
    Abstract: One exemplary embodiment can be a separation zone for separating a plurality of naphtha components. The separation zone can include first and second columns. The first column may include a dividing imperforate wall with one surface facing a feed and another surface facing a side stream. Typically, the wall extends a significant portion of the column height to divide the portion into at least two substantially vertical, parallel contacting sections. Also, the second column can communicate with the first column so as to provide a feed to or receive a feed from the first column. Generally, the second column is non-divided. The separation zone may provide at least four product streams.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: August 21, 2012
    Assignee: UOP LLC
    Inventors: Michael A. Schultz, Xin X. Zhu
  • Patent number: 8197646
    Abstract: Process for the continuous fractional distillation of mixtures including morpholine (MO), monoaminodiglycol (ADG), ammonia and water obtained by reaction of diethylene glycol (DEG) with ammonia, which includes separating off ammonia at the top of a first distillation column K10, feeding the bottoms from K10 to a second distillation column K20 in which water and organic products are separated off at the top at a temperature at the top in the range from 45 to 198° C. and a pressure in the range from 0.1 to 15 bar, feeding the bottoms from K20 to a third distillation column K30 in which MO and organic products having a boiling point of <140° C. (1.013 bar) are separated off at the top or at a side offtake and ADG and organic products having a boiling point of >190° C. (1.013 bar) are separated off at the bottom, feeding the MO including stream which is separated off at the top or at a side offtake of the column K30 to a fourth column K40 in which organic products having a boiling point of ?128° C. (1.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: June 12, 2012
    Assignee: BASF SE
    Inventors: Helmut Schmidtke, Oliver Buβmann, Ralph Versch, Udo Rheude, Uwe Leyk, Manfred Julius, Martin Rudloff, Erhard Henkes
  • Patent number: 8182654
    Abstract: A process for reducing the energy consumption of a distillation column is disclosed. The process includes drawing off an intermediate vapor stream from the rectification section of the distillation column. The vapor stream is compressed and the heat in the vapor stream is exchanged with a portion of the liquid bottoms stream. The heat transfer condenses a portion of the vapor stream, while vaporizing the liquid bottoms stream.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: May 22, 2012
    Assignee: UOP LLC
    Inventors: Paul A. Sechrist, David A. Wegerer
  • Patent number: 8172987
    Abstract: An energy-efficient extractive distillation process for producing anhydrous ethanol from aqueous/ethanol feeds containing any range of ethanol employs an extractive distillation column (EDC) that operates under no or greatly reduced liquid reflux conditions. The EDC can be incorporated into an integrated process for producing anhydrous ethanol used for gasoline blending from fermentation broth. By using a high-boiling extractive distillation solvent, no solvent, is entrained by the vapor phase to the EDC overhead stream, even under no liquid reflux conditions. The energy requirement and severity of the EDC can be further improved by limiting ethanol recovery in the EDC. In this partial ethanol recovery design, ethanol which remains in the aqueous stream from the EDC is recovered in a post-distillation column or the aqueous stream is recycled to a front-end pre-distillation column where the ethanol is readily recovered since the VLE curve for ethanol/water is extremely favorable for distillation.
    Type: Grant
    Filed: July 17, 2011
    Date of Patent: May 8, 2012
    Assignees: AMT International Inc., CPC Corporation, Taiwan
    Inventors: Fu-Ming Lee, Tzong-Bin Lin, Jyh-Haur Hwang, Hung-Chung Shen, Kuang-Yeu Wu, Lindsey Vuong, Fong-Cheng Su, Po-Sung Cheng, Tai-Ping Chang
  • Patent number: 8172988
    Abstract: The system contains a liquid-tight enclosure. An input source is connected to the liquid-tight enclosure for inputting water into the liquid-tight enclosure. A heating element is in thermal communication with at least a portion of the water within the liquid-tight enclosure. A plurality of substantially vertical plates are aligned along a substantially horizontal axis within the liquid-tight enclosure. Each of the substantially vertical plates has an opening. A groove is formed along each of the substantially vertical plates. A first end of the groove on each of the substantially vertical plates is proximate to the opening. At least one manifold extends through a plurality of the openings of the substantially vertical plates. The manifold is in fluid communication with a plurality of the first ends of the grooves. An output opening is formed in the liquid-tight enclosure. The output opening is arranged in fluid communication with the manifold.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: May 8, 2012
    Assignee: Distillation Technologies, LLC
    Inventor: Samuel T. Kjellman
  • Patent number: 8153853
    Abstract: A method for the separation of hydrocarbon compounds utilizing a dividing wall distillation column is described. The dividing wall distillation column enables one or more side draw stream to be removed from the dividing wall distillation column in addition to an overhead stream and a bottoms stream.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: April 10, 2012
    Assignee: Fina Technology, Inc.
    Inventor: James R. Butler
  • Publication number: 20120073955
    Abstract: A feed gas conditioner.
    Type: Application
    Filed: August 25, 2011
    Publication date: March 29, 2012
    Inventors: Jack L. McClanahan, Craig S. Tiras
  • Patent number: 8123913
    Abstract: Processes and apparatuses for separating diisopropylbenzene (DIPB) and triisopropylbenzene (TIPB) from a feed including DIPB, TIPB, and polyalkylate heavies are disclosed. The disclosed processes include introducing the feed into a distillation column having a column top pressure of less than 5 psia, a column bottoms pressure of less than 3 psi, and preferably 2 psi or less above the column top pressure with a bottoms temperature ranging from about 435° F. to about 465° F. The processes also include taking off a side draw including at least 99.8 wt % of the DIPB and at least 50 wt % of the TIPB present in the feed and a bottoms stream including at least 95 wt % of the heavies contained in the distillation feed. The low temperature bottoms temperature enables high pressure steam to be used as the bottoms reboiler heat source.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: February 28, 2012
    Assignee: UOP LLC
    Inventor: Michael R. Smith
  • Patent number: 8110073
    Abstract: Aromatic amines are produced by catalytic hydrogenation of aromatic nitro compounds. The reaction mixture generated by this hydrogenation is then worked up by distillation in a manner which makes it possible to substantially free the amine of water with increased energy efficiency. Water free of amine and low boilers and the low boiling materials are also obtained.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: February 7, 2012
    Assignee: Bayer MaterialScience AG
    Inventors: Bernd Pennemann, Bill Brady, Rainer Buse
  • Patent number: 8101048
    Abstract: This invention relates to methods of removing impurities from compounds having similar volatilities to form ultra high purity compounds.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: January 24, 2012
    Assignee: Rohm and Haas Company
    Inventors: Francis Joseph Lipiecki, Stephen G Maroldo, Deodatta Vinayak Shenai-Khatkhate, Robert A. Ware
  • Patent number: 8092655
    Abstract: A dividing wall column is described which includes the following segments: a) an upper column region (1), b) an enrichment section (2) of the feed section, c) a stripping section (4) of the feed section, d) an upper part (3) of the offtake section, e) a lower part (5) of the offtake section, f) an intermediate region (9) of the feed section, g) an intermediate region (10) of the offtake section and h) a lower column region (6). The dividing wall column has a dividing wall (7) is located vertically between the segments b) (2) and d) (3) and between the segments c) (4) and e) (5). The segments b) (2), d) (3), c) (4) and e) (5) have separation-active internals, Segment b (2) has a cross-sectional area Ab which is at least 10% smaller than the cross-sectional area Ad of segment d) (3), and segment c) has a cross-sectional area Ac which is at least 10% greater than the cross-sectional area Ae of segment e) (5).
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: January 10, 2012
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfram Burst, Horst Hartmann, Gerd Kaibel, Guido Harms
  • Publication number: 20120000764
    Abstract: The present invention relates to a process for purifying monomers, by evaporating at least a portion of the monomers present in a starting composition and then condensing it, which is characterized in that at least a portion of the starting composition is evaporated in a short-path evaporator, the mass flow density of the vapours {dot over (m)} being selected according to the relation (I) m . ? 1800 ? kg · K mbar · m 2 · h · kg kmol · p i · ( M ~ T ) 0.5 ( I ) in which {tilde over (M)} is the average molar mass of the vapours in the short-path evaporator in kg/kmol T is the temperature of the vapours in K pi is the pressure in the short-path evaporator in mbar {dot over (m)} is the mass flow density of the vapours in kg/(m2·h). A further aspect of the present invention is a plant for performing the process.
    Type: Application
    Filed: March 26, 2010
    Publication date: January 5, 2012
    Inventors: Dirk Broell, Christian Maul, Benedikt Laux, Volker Schleep
  • Publication number: 20120004472
    Abstract: The present invention relates to a process for distilling an aqueous polymethylol mixture which comprises a polymethylol of the formula (I) (HOCH2)2—C—R2??(I) in which each R is independently a further methylol group or an alkyl group having 1 to 22 carbon atoms or an aryl or aralkyl group having 6 to 22 carbon atoms, a tertiary amine, water and the adduct of tertiary amine and formic acid (amine formate), which comprises performing the distillation in a distillation column which is connected at the bottom to an evaporator, the bottom temperature being above the evaporation temperature of the monoester of formic acid and polymethylol (polymethylol formate) which forms during distillation. The present invention further relates to a composition comprising polymethylol and 1 to 10 000 ppm by weight of polymethylol formate, and to the use thereof.
    Type: Application
    Filed: December 7, 2009
    Publication date: January 5, 2012
    Applicant: BASF-SE
    Inventors: Tilman Sirch, Michael Steiniger, Steffen Maas, Stefan Rittinger, Stephan Schlitter
  • Patent number: 8066852
    Abstract: Light hydrocarbon enrichment is accomplished using a vertically oriented distillation column having a plurality of vertically oriented, nonselective micro/mesoporous hollow fibers. Vapor having, for example, both propylene and propane is sent upward through the distillation column in between the hollow fibers. Vapor exits neat the top of the column and is condensed to form a liquid phase that is directed back downward through the lumen of the hollow fibers. As vapor continues to ascend and liquid continues to countercurrently descend, the liquid at the bottom of the column becomes enriched in a higher boiling point, light hydrocarbon (propane, for example) and the vapor at the top becomes enriched in a lower boiling point light hydrocarbon (propylene, for example). The hollow fiber becomes wetted with liquid during the process.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: November 29, 2011
    Assignee: Los Alamos National Security, LLC
    Inventors: Dali Yang, David Devlin, Robert S. Barbero, Martin E. Carrera, Craig W. Colling
  • Patent number: 8053584
    Abstract: The present case relates to a process for the purification of lactide from a crude lactide vapor product stream which process comprises a rectification/condensation step leading to a lactide-enriched condensate.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: November 8, 2011
    Assignee: Tate & Lyle Public Limited Company
    Inventors: Johannes Meerdink, Nils Dan Anders Sädergard
  • Patent number: 8002953
    Abstract: An energy-efficient extractive distillation process for producing anhydrous ethanol from aqueous/ethanol feeds containing any range of ethanol employs an extractive distillation column (EDC) that operates under no or greatly reduced liquid reflux conditions. The EDC can be incorporated into an integrated process for producing anhydrous ethanol used for gasoline blending from fermentation broth. By using a high-boiling extractive distillation solvent, no solvent is entrained by the vapor phase to the EDC overhead stream, even under no liquid reflux conditions. The energy requirement and severity of the EDC can be further improved by limiting ethanol recovery in the EDC. In this partial ethanol recovery design, ethanol which remains in the aqueous stream from the EDC is recovered in a post-distillation column or the aqueous stream is recycled to a front-end pre-distillation column where the ethanol is readily recovered since the VLE curve for ethanol/water is extremely favorable for distillation.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: August 23, 2011
    Assignees: AMT International Inc., CPC Corporation, Taiwan
    Inventors: Fu-Ming Lee, Kuang-Yeu Wu, Lindsey Vuong, Fong-Cheng Su, Tzong-Bin Lin, Jyh-Haur Hwang, Hung-Chung Shen, Po-Sung Cheng, Tai-Ping Chang
  • Publication number: 20110189320
    Abstract: Procedure of refining crude olive pomace oil obtained through centrifuging or decantation of the pomace, comprising the stage of filtration of the starting crude olive pomace oil carried out through filters having a pore size comprised in the interval from 0.1 to 20 microns and at a temperature below 70° C., preferentially between 35 and 45° C.
    Type: Application
    Filed: July 21, 2009
    Publication date: August 4, 2011
    Applicants: CONSEJO SUPERIOR DE INVESTIGACIONES CIENTÍFICASFICAS, OLEICOLA EL TEJAR, S.C.A.
    Inventors: Mª Victoria Ruiz Méndez, Mª Carmen Dobarganes, Pedro Sánchez Moral
  • Patent number: 7981256
    Abstract: A splitter system is disclosed that produces a product stream from a mixed stream of two materials with similar boiling points. A multi-stage heat pump compressor is used in combination with a bottoms reboiler and an intermediate reboiler resulting in reduced utility consumption. The appropriately placed intermediate reboiler enables use of a lower temperature heat source relative to the bottoms reboiler heat source. As a result, a lower pressure overhead vapor stream can be used to deliver heat to both the intermediate and bottoms reboilers, thereby conserving energy. The first stage of the multi-stage heat pump compressor delivers pressurized overhead vapor to the intermediate reboiler and the second stage provides pressurized overhead vapor to the bottoms reboiler. The disclosed design and method lessens the heat pump compressor power consumption and trim condenser duty for a propylene/propane splitter system by over 20%.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: July 19, 2011
    Assignee: UOP LLC
    Inventors: David A. Wegerer, Paul A. Sechrist