With Fractional Condensation Of Vapor Outside Still Patents (Class 203/87)
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Patent number: 10851311Abstract: One or more processes for stabilizing a hydrocarbon stream. An unstabilized hydrocarbon stream comprising C5+ hydrocarbons and including some butane, propane and ethane, may be passed to a first separation zone. The first separation zone has an increased operating pressure so that a residue gas stream recovered from the first separation zone requires minimal compression for further processing. A bottoms stream form the first separation zone is passed to a second, lower pressure separation zone which provides an NGL stream and a C5+ liquid hydrocarbon stream that is stabilized.Type: GrantFiled: February 2, 2018Date of Patent: December 1, 2020Assignee: UOP LLCInventors: Timothy Oneal, Derrick Oneal, Jeffrey Garrison
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Patent number: 10246328Abstract: Processes and systems for degassing liquid sulfur may include mixing a gas, such as air, with a liquid sulfur mixture comprising sulfur, hydrogen sulfide, and hydrogen polysulfides to form a sulfur-gas mixture. The sulfur-gas mixture may then be transported to a separator, storage vessel or storage tank for separating the sulfur-gas mixture.Type: GrantFiled: December 17, 2015Date of Patent: April 2, 2019Assignee: WorleyParsons Europe Ltd.Inventors: Elmo Nasato, Frank Bela, Bill DeWees, Lance Christie, Stephen Pollitt, Robin Street, David Evans
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Patent number: 9522965Abstract: Methods of producing bio-fuel and other high-value products from oleaginous biomass (e.g. algae biomass) are provided. The two-step methods use a first step of subcritical water extraction of the biomass at low temperatures to produce polysaccharides and other high value products of interest, followed by, ii) hydrothermal liquefaction of remaining solid biomass at high temperatures to produce bio-oil.Type: GrantFiled: October 24, 2012Date of Patent: December 20, 2016Assignee: Washington State UniversityInventors: Shulin Chen, Moumita Chakraborty, Chao Miao
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Patent number: 9421509Abstract: The hydrocarbon production apparatus is provided with a gas-liquid separator for cooling gaseous state hydrocarbons drawn out from a gas phase portion of a reactor for the Fischer-Tropsch synthesis reaction and liquefying a portion of the hydrocarbons. A light liquid hydrocarbon supply line for supplying light hydrocarbons is disposed between a downstream side line which is downstream from the last stage of a gas-liquid separating unit of the gas-liquid separator, and an upstream side line which is upstream from the last stage of the gas-liquid separating unit of the gas-liquid separator, wherein the downstream side line is a liquid hydrocarbon line on the downstream side through which the light hydrocarbons having cloud points lower than the temperature at an outlet of a cooler in the last stage of the gas-liquid separating unit are flowed.Type: GrantFiled: March 13, 2012Date of Patent: August 23, 2016Assignees: Japan Oil, Gas and Metals National Corporation, INPEX CORPORATION, JX Nippon Oil & Energy Corporation, Japan Petroleum Exploration Co., Ltd., COSMO OIL CO., LTD., NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD.Inventor: Shinya Arai
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Patent number: 9289697Abstract: A device (1) for removing volatile compounds from polluted waters, comprising: a) a stripping column (2) for desorption of the volatile organic compounds from the water to be purified, b) means (3; 3a, 5) for separating the volatile compounds from the stripping gas that flows out of said stripping column (2); c) a vacuum pump (4) connected on the suction side to said outflow line (24) for stripping gas and connected on the delivery side to said means (3; 3a, 5) for separating the volatile organic compounds from a gas; d) said means (3; 3a, 5) comprising a cryogenic condensation unit (3), with an outflow line (34) for refrigerant wherein said outflow line (34) for fluid refrigerant of said cryogenic condensation unit (3) communicates with said inflow line (23) for stripping gas, for supplying said stripping column (2).Type: GrantFiled: November 6, 2013Date of Patent: March 22, 2016Assignees: POLARIS S.R.L., S.I.A.D. S.P.A.Inventor: Gianclaudio Masetto
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Patent number: 8961744Abstract: 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: GrantFiled: February 19, 2014Date of Patent: February 24, 2015Assignee: Korex CorporationInventors: Ho Kyung Lee, In Gyoo Lee, Myung Jun Park, Kee-Kahb Koo, Jae-Kyeong Kim
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Patent number: 8945351Abstract: A method of removing organic components from a mixture containing organic and inorganic components which method involves providing an induction heated screw conveyor having an auger and passing the mixture through the induction heated screw conveyor while inductively heating the auger so as to heat the mixture in the induction heated screw conveyor primarily from the center of the induction heated screw conveyor. The mixture is heated to a temperature that is sufficient to cause the organic components in the mixture to separate from the mixture as a vapor. The oxygen concentration in the induction heated screw conveyor is controlled so as to gasify the organic components. The gasified organic components are removed and the remaining inorganic components are collected.Type: GrantFiled: July 26, 2011Date of Patent: February 3, 2015Assignee: Heritage Environmental Services LLCInventors: James E. Bratina, David Bowering, Anthony Kriech, Perry Eyster, Thomas Roberts
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Patent number: 8945350Abstract: A method of separating a high boiling component from a mixture containing organic and/or inorganic boiling components which method involves providing an induction heated screw conveyor having an auger and passing the mixture through the induction heated screw conveyor while inductively heating the auger so as to heat the mixture in the induction heated screw conveyor. The mixture is heated to a temperature that is sufficient to cause the boiling component(s) to separate from the mixture as a vapor and the boiling component is removed from the induction heated screw conveyor.Type: GrantFiled: July 26, 2011Date of Patent: February 3, 2015Assignee: Heritage Environmental Services LLCInventors: James E. Bratina, David Bowering, Perry Eyster, Thomas Roberts
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Patent number: 8932434Abstract: 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: GrantFiled: March 19, 2010Date of Patent: January 13, 2015Assignee: LG Chem, Ltd.Inventors: Sung Kyu Lee, Jong Ku Lee, Joon Ho Shin
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Patent number: 8920609Abstract: The device and method are provided to increase anhydrosugars yield during pyrolysis of biomass. This increase is achieved by injection of a liquid or gas into the vapor stream of any pyrolysis reactor prior to the reactor condensers. A second feature of our technology is the utilization of sonication, microwave excitation, or shear mixing of the biomass to increase the acid catalyst rate for demineralization or removal of hemicellulose prior to pyrolysis. The increased reactivity of these treatments reduces reaction time as well as the required amount of catalyst to less than half of that otherwise required. A fractional condensation system employed by our pyrolysis reactor is another feature of our technology. This system condenses bio-oil pyrolysis vapors to various desired fractions by differential temperature manipulation of individual condensers comprising a condenser chain.Type: GrantFiled: October 1, 2010Date of Patent: December 30, 2014Inventors: Philip H. Steele, Fei Yu, Qi Li, Brian Mitchell
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Patent number: 8894823Abstract: 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: GrantFiled: September 18, 2013Date of Patent: November 25, 2014Assignee: LG Chem, Ltd.Inventors: Sung Kyu Lee, Jong Ku Lee, Joon Ho Shin
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Patent number: 8888964Abstract: 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: GrantFiled: January 18, 2010Date of Patent: November 18, 2014Assignee: LG Chem, Ltd.Inventors: Sung-Kyu Lee, Joon-Ho Shin, Jong-Ku Lee
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Patent number: 8882969Abstract: A system for treating recovered fluids in-line that includes a thermal reactor for separating contaminated drill cuttings into drill cuttings and contaminants by applying heat to the contaminated drill cuttings so as to vaporize contaminants from the contaminated drill cuttings; a first condenser in fluid connection with the thermal reactor for condensing the vaporized contaminants; a separator in fluid connection with the first condenser for separating the condensed vapors into an oleaginous liquid and an aqueous liquid, wherein at least a portion of one of the aqueous liquid and oleaginous liquid is fed back into the first condenser via a feedback line; and an ozone generator operatively coupled to the feedback line, wherein at least the portion of the fed back liquid is ozonated by the ozone generator and fed into the condenser is disclosed.Type: GrantFiled: October 24, 2011Date of Patent: November 11, 2014Assignee: M-I LLCInventors: Mukesh Kapila, Ivan Batinic, Paul Gover, Neale Browne
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Patent number: 8852405Abstract: 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: GrantFiled: November 8, 2013Date of Patent: October 7, 2014Assignee: LG Chem, Ltd.Inventors: Sung Kyu Lee, Joon Ho Shin, Jang Ku Lee
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Patent number: 8845865Abstract: 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: GrantFiled: January 31, 2013Date of Patent: September 30, 2014Assignee: Purestream Services, LLCInventors: J. Clair Batty, Neil W. Richardson, David A. Bell, Christopher M. Miller
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Publication number: 20140262741Abstract: A heat pipe is configured relative to a distillation column to adjust one or more conditions in the distillation column.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Inventors: Jeffrey A. Bowers, Roderick A. Hyde, Muriel Y. Ishikawa, Nathan P. Myhrvold, Thomas Allan Weaver, Lowell L. Wood, JR., Richard N. Zare
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Publication number: 20140275630Abstract: Systems and methods for improving crude acetone column energy efficiency and operation are provided. The method for improving crude acetone column energy efficiency and operation can include introducing a crude acetone including acetone and phenol to a fractionation column and introducing cumene, AMS, or a combination thereof to the fractionation column. The method can include fractionating the crude acetone within the fractionation column to produce an acetone containing overhead and a phenol containing bottoms. The method can also include condensing at least a portion of the acetone containing overhead indirectly with a cool heat transfer medium to provide a condensed crude acetone product and a heated heat transfer medium, wherein the heat transfer medium includes cumene.Type: ApplicationFiled: February 25, 2014Publication date: September 18, 2014Applicant: KELLOGG BROWN & ROOT LLCInventors: Truc Vu, Theodor Robert Wilks
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Patent number: 8747621Abstract: A process for the rectification of mixtures of high-boiling air- and/or temperature-sensitive substances which require a high separation efficiency is proposed, in particular a process for the working-up of a VE- or VEA-containing product stream. The process includes a first purification stage to separate low-boiling products and unspecified isomers of the useful product from the product stream virtually without loss of useful product and a second purification stage for removing the useful product in a stream having a purity of >97% by weight and a further stream having a purity of >92% by weight.Type: GrantFiled: April 1, 2013Date of Patent: June 10, 2014Assignee: DSM IP Assets B.V.Inventors: Juan Herguijuela, Werner Pietzonka, Angela Wildermann, Thomas Wolf
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Publication number: 20140138237Abstract: The present invention relates to 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. 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: ApplicationFiled: November 8, 2013Publication date: May 22, 2014Applicant: LG CHEM, LTD.Inventors: Sung Kyu Lee, Joon Ho SHIN, Jong Ku LEE
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Patent number: 8721842Abstract: A catalytic reaction-rectification integrated process and a catalytic reaction-rectification integrated column, and the specialized device of such process is provided. The reactants are preheated and mixed with catalysts, and then fed into a jet agitation reaction section located in the middle of the catalytic reaction-rectification integrated column from a feeding inlet. The jet agitation reaction section is a kettle-like reactor located in the middle of the catalytic reaction-rectification integrated column. After pressurized by a centrifugal pump, the reactant materials are admitted into a subsonic or transonic agitator located within the reaction section. The reactant materials are ejected into the jet agitation reaction section at high speed, to efficiently mix the solid and liquid phases in the reaction section and to reinforce heat and mass transfer efficiency during the reaction. The liquid reaction mixture is separated and purified directly in the catalytic reaction-rectification integrated column.Type: GrantFiled: November 20, 2008Date of Patent: May 13, 2014Assignee: Nanjing UniversityInventors: Zhibing Zhang, Zheng Zhou, Youting Wu, Min Shao
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Patent number: 8691054Abstract: The present invention provides a configuration of a multi stage flash cross tube evaporator wherein flash stages are arranged in a plurality of at least two tiers with a first flash stage to which a heated solution is fed, a plurality of intermediate flash stages and a last flash stage from which the concentrated solution is discharged in each tier, wherein the flash stages in each tier are in a serial flow communication and the flash stages of each tier are in parallel flow communication to the flash stages in the other tier(s). Such configuration allows to minimize the size of the tube bundles, flash stages and evaporator shell and consequently minimizing evaporator weight and cost.Type: GrantFiled: April 18, 2011Date of Patent: April 8, 2014Inventor: Friedrich Alt
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Patent number: 8685212Abstract: A start-up method of a fractionator which fractionally distills FT synthesized hydrocarbons produced by the Fischer-Tropsch synthesis reaction, the method includes: discharging light FT synthesized hydrocarbons which exist in a gaseous state in an FT reactor performing the Fischer-Tropsch synthesis reaction from the FT reactor to the outside; cooling down the light FT synthesized hydrocarbons discharged from the FT reactor for liquefaction; supplying the liquefied light FT synthesized hydrocarbons to the fractionator; and heating the light FT synthesized hydrocarbons and circulating the light FT synthesized hydrocarbons to the fractionator.Type: GrantFiled: September 25, 2009Date of Patent: April 1, 2014Assignees: JX Nippon Oil & Energy Corporation, Japan Oil, Gas and Metals National Corporation, Inpex Corporation, Japan Petroleum Exploration Co., Ltd., Cosmo Oil Co., Ltd., Nippon Steel Engineering Co., Ltd.Inventors: Yuichi Tanaka, Hidekatsu Honda
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Publication number: 20140076711Abstract: 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: ApplicationFiled: November 25, 2013Publication date: March 20, 2014Applicant: LG CHEM, LTD.Inventors: Sung Kyu LEE, Joon Ho SHIN, Jong Ku LEE, Sung Kyun KIM
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Publication number: 20140076710Abstract: 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: ApplicationFiled: November 25, 2013Publication date: March 20, 2014Applicant: LG CHEM, LTD.Inventors: Sung Kyu LEE, Joon Ho SHIN, Jong Ku LEE, Sung Kyun KIM
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Publication number: 20140076709Abstract: 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: ApplicationFiled: November 25, 2013Publication date: March 20, 2014Applicant: LG CHEM, LTD.Inventors: Sung Kyu LEE, Joon Ho SHIN, Jong Ku LEE, Sung Kyun KIM
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Patent number: 8617359Abstract: A method for distilling a starting material that includes a liquid Fd to be distilled, uses a gas-tight container system that is resistant to excess and/or negative pressure. The container system includes a condenser for condensing the liquid Fd, which has turned to vapor and whose temperature can be adjusted, to give the condensation product, and a vapor chamber connecting the evaporator and the condenser. The pressure and temperature in the vapor chamber are monitored and controlled so that distillation is always carried out in a range close to the saturation vapor pressure of the liquid Fd to be distilled. If the pressure is too high, it is reduced so that especially foreign gas is removed. An installation includes a container for distillation according to method.Type: GrantFiled: April 1, 2008Date of Patent: December 31, 2013Inventors: Markus Lehmann, Markus Braendli
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Patent number: 8591704Abstract: A fractionation process for producing at least two concentration fractions of a fluid including a solute, suspended or dissolved content using at least two fluidly connected evaporator units is provided. The process includes the steps of: feeding a feed fluid including a solute, suspended or dissolved content into at least a first evaporator unit; evaporating a first amount of fluid from the feed fluid in at least the first evaporator unit to produce a first concentrated fluid; feeding at least a portion of the first concentrated fluid into at least a second evaporator unit; and evaporating a second amount of fluid from the first concentrated fluid in at least the second evaporator unit to produce a second concentrated fluid.Type: GrantFiled: March 20, 2009Date of Patent: November 26, 2013Assignee: Creative Water Technology Ltd.Inventor: Stephen Shelley
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Publication number: 20130292243Abstract: The present invention relates to a dividing wall column for preparing high-purity neopentyl glycol, and a method of distilling neopentyl glycol. Using only one column, the dividing wall column has the same effect as when using two columns. Thus, energy and equipment costs may be reduced in the production of the high-purity neopentyl glycol as compared to a conventional process apparatus.Type: ApplicationFiled: June 27, 2013Publication date: November 7, 2013Applicant: LG CHEM, LTD.Inventors: Sung Kyu Lee, Joon Ho Shin, Jong Ku Lee
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Publication number: 20130292242Abstract: The present invention relates to an apparatus for the distillation of substance mixtures which comprise temperature-sensitive substances, where the apparatus comprises a thin-film evaporator and a fractionating column, and where the fractionating column is attached to the distillate outlet of the thin-film evaporator, and where the fractionating column has at least 3 theoretical plates, and where the pressure drop of the fractionating column during operation at an F factor of 1 Pa1/2 amounts to a maximum of 3 hPa (3 mbar). Furthermore, the present invention relates to a process for the distillation of substance mixtures which comprise temperature-sensitive substances, which process is carried out in the apparatus according to the invention.Type: ApplicationFiled: September 23, 2011Publication date: November 7, 2013Applicant: Cognis IP Management GmbHInventors: Dieter Hietsch, Peter Horlacher, Joerg Schwarzer
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Publication number: 20130284585Abstract: Methods for purifying a halosilane-containing process stream are disclosed. In some embodiments, arsenic and phosphorous impurities are removed from halosilane-containing process streams by use of distillation.Type: ApplicationFiled: March 15, 2013Publication date: October 31, 2013Inventors: Zhihui Gu, Gianluca Pazzaglia, Puneet Gupta
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Patent number: 8535487Abstract: A process for purifying an aqueous stream from a Fischer-Tropsch reaction that includes feeding the aqueous stream to a system that includes a distillation column equipped with a partial condenser and a total condenser, at least partially condensing the vaporized stream leaving the head of the distillation column and collecting a first distillate in which in heavier by-products, totally condensing the remaining portion of the vaporized stream leaving the partial condenser and collecting a liquid stream which is returned to the distillation column as a reflux and removing a purified aqueous stream from the bottom of the distillation column.Type: GrantFiled: May 30, 2008Date of Patent: September 17, 2013Assignee: ENI S.p.A.Inventors: Lino Carnelli, Carla Lazzari, Gianni Pandolfi
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Patent number: 8523965Abstract: 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: GrantFiled: February 6, 2013Date of Patent: September 3, 2013Assignee: Doulos Technologies LLCInventors: Coyte R Jones, Robert C Jones
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Patent number: 8506766Abstract: A method for recovering acetic acid from an aqueous feed stream containing acetic acid and, in particular, a stream generated during terephthalic acid production includes feeding a water-rich feed stream to a liquid-liquid extraction column, which includes a guard bed near the top thereof for conversion of alcohol within the feed stream by reaction with acetic acid to the corresponding ester, and removing residual water from acetic acid in an azeotropic distillation column by feeding water-poor feed streams from the extraction column to the distillation column at a height at which the mixture has a similar water concentration. The liquid-liquid extraction column produces an extract of an extraction solvent and acetic acid which is sent to the azeotropic distillation column to separate residual water and acetic acid.Type: GrantFiled: September 14, 2012Date of Patent: August 13, 2013Assignee: AMT International Inc.Inventors: Kuang-Yeu Wu, Ji-Young Jang, Karl Tze-Tang Chuang
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Publication number: 20130190531Abstract: The phase separation in the decanter of a process for producing acetic acid by carbonylating methanol in the presence of a catalyst under low water-high acid conditions is facilitated and expedited by forming a liquid mixture (D) which has a water content of at most 10% by weight, based on the weight of the liquid mixture, an acetic acid content of at least 10% by weight, based on the weight of the liquid mixture, and a weight ratio of methyl iodide to methyl acetate of at least 1.5:1, and partitioning the liquid mixture at a temperature of from 0 to 35° C.Type: ApplicationFiled: December 19, 2012Publication date: July 25, 2013Inventors: Lyondell Chemical Technology, L.P., Equistar Chemicals, LP
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Publication number: 20130153401Abstract: A process for purifying a brine of organic compounds comprising: (a) supplying a brine that comprises at least one organic compound; (b) feeding at least one stripping zone with the brine from (a) and at least one stripping agent; (c) withdrawing from the stripping zone at least one fraction (I) consisting essentially of brine, the content of the organic compound being lower in fraction (I) than in the brine from step (a), and at least one fraction (II) consisting essentially of the stripping agent; wherein the temperature (T1) of the hotter fraction of the two fractions (I) and (II) and the temperature (T2) of the colder fraction of the two fractions (I) and (II), such temperatures expressed in degrees Celsius being the temperatures measured before any possible thermal conditioning which might be carried out before and/or during their withdrawal from the stripping zone, correspond to the following formula: 6×10?7(T1)3.Type: ApplicationFiled: August 22, 2011Publication date: June 20, 2013Applicant: SOLVAY SAInventors: Patrick Gilbeau, Philippe Krafft, Jerome Ligot, Valentine Smets, Giancarlo Iavarone
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Publication number: 20130068609Abstract: Methods and systems for fractionating a crude alpha-methylstyrene (AMS) feed using one or more dividing wall columns are provided. The method can include introducing a crude AMS to a fractionation column, wherein the fractionation column contains a dividing wall disposed at least partially within the fractionation column such that an internal volume of the fractionation column is divided into at least a pre-fractionation section and a main fractionation section. The crude AMS can be introduced to the pre-fractionation section of the fractionation column. A light hydrocarbon can be withdrawn from the fractionation column at or proximal a first end thereof, a side-stream can be withdrawn from the main fractionation section of the fractionation column, and a heavy hydrocarbon can be withdrawn from the fractionation column at or proximal the second end thereof.Type: ApplicationFiled: September 18, 2012Publication date: March 21, 2013Applicant: Kellogg Brown & Root LLCInventor: Kellogg Brown & Root LLC
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Publication number: 20130056677Abstract: A solvent for absorbing H2S and CO2 is regenerated using two regenerators. Rich solvent is fed to a first regenerator producing a first acid gas stream from the top, and a partially regenerated solvent from the bottom. The partially regenerated solvent is fed to a second regenerator producing an overhead vapor stream from the top and a lean solvent stream from the bottom. A portion of the second regenerator overhead vapor stream is cascaded to the first regenerator to contact rich solvent. The first acid gas stream and the remaining second regenerator overhead vapor stream are respectively fed to the first and second reaction zones of a two-stage Claus reaction furnace. Substantially all volatile organic contaminants are stripped in the first regenerator, and thus favorably destroyed in the first reaction furnace zone by virtue of higher local combustion temperatures and closer approach to oxidizing conditions.Type: ApplicationFiled: September 6, 2012Publication date: March 7, 2013Inventor: Frank Bela
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Publication number: 20130053534Abstract: A process for distilling an aqueous NPG mixture comprising NPG, a tertiary amine, water and the adduct of tertiary amine and formic acid (amine formate), said distillation being performed in a distillation column, which comprises drawing off a gaseous stream in the upper region of the column and feeding it to two condensers connected in series, the first condenser being operated in such a way that a portion of the gaseous stream is condensed in the first condenser and the second condenser being operated in such a way that the uncondensed portion of the gaseous stream is essentially fully condensed in the second condenser, the condensed stream from the first condenser being recycled fully or partly as reflux into the column.Type: ApplicationFiled: August 17, 2012Publication date: February 28, 2013Applicant: BASF SEInventors: Helmut Kronemayer, Kai Stehmeier, Ralf Edinger, Stefan Rittinger, Michael Steiniger
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Publication number: 20120261252Abstract: Disclosed herein are processes for separation of 2,3,3,3-tetrafluoropropene and hydrogen fluoride using azeotropic distillation. Additionally, disclosed are processes for separating mixtures of 2,3,3,3-tetrafluoropropene, hydrogen fluoride and 1,1,1,2,3-pentafluoropropane (HFC-245eb) and/or 1,1,1,2,2-pentafluoropropane (HFC-245cb) by azeotropic distillation.Type: ApplicationFiled: February 19, 2009Publication date: October 18, 2012Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventor: Jeffrey P. Knapp
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Publication number: 20120024690Abstract: The invention relates to a cyclonic fluid separator comprising a throat portion (4) which is arranged between a converging fluid inlet section and a diverging fluid outlet section. The cyclonic fluid separator is arranged to facilitate a cyclonic flow through the converging fluid inlet section and the throat portion towards the diverging fluid outlet section in a downstream direction. The diverging fluid outlet section comprises an inner primary outlet conduit (7) for condensable depleted fluid components and an outer secondary outlet conduit (6) for condensable enriched fluid components. The cyclonic fluid separator comprises a further outer secondary outlet conduit (16). The outer secondary outlet conduit (6) is positioned on a first position along a central axis (I) of the cyclonic fluid separator and the further outer secondary outlet conduit (16) is positioned on a second position along the central axis (I) of the cyclonic fluid separator.Type: ApplicationFiled: February 5, 2009Publication date: February 2, 2012Applicant: TWISTER B.V.Inventors: Marco Betting, Cornelis Antonie Tjeenk Willink, Robert Petrus van Bakel
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Publication number: 20120006673Abstract: 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. Also, a crude acrylic acid raw material (F) flows in a middle inflow plate NR1 in which the upper feed zone and the lower feed zone come in contact with each other, a low boiling point component (D) flows out from the column-top zone, a high boiling point component (B) flows out from the column-bottom zone, and a middle boiling point component (S) flows out through a middle outflow plate NR2 in which the upper outflow zone and the lower outflow zone come in contact with each other. In this case, the middle boiling point component is acrylic acid.Type: ApplicationFiled: March 19, 2010Publication date: January 12, 2012Applicant: LG Chem, Ltd.Inventors: Sung Kyu Lee, Jong Ku Lee, Joon Ho Shin
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Patent number: 8075742Abstract: An apparatus and process for the separation of refrigerant mixtures is provided. The apparatus includes a first distillation column, a first condenser, and a first collection vessel. The apparatus also includes a sorter vessel that includes a sorter agent, wherein the sorter vessel is fluidly connected to the first distillation column.Type: GrantFiled: December 3, 2009Date of Patent: December 13, 2011Assignee: Midwest Refrigerants, LLCInventor: Gregorio Tarancon, III
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Patent number: 8034217Abstract: A liquid condensation system heats a liquid raw material under a decompressed circumstance and evaporates a volatile component from a liquid surface to condense the liquid raw material. Therefore, the liquid condensation system includes: liquid condensers, each of which condenses the liquid raw material; a vacuum pump that is in communication with the liquid condensers; and a warm water circulation system as a heating source that heats the liquid raw material in the liquid condensers. The volatile component evaporated in the liquid condensers is led to the outside of the liquid condensers through vapor lines. The condensed liquid that is not evaporated in the liquid condensers is led to the outside of the liquid condensers through condensed-liquid lines. Condensed-liquid-line adjusting valves are interposed on the condensed-liquid lines, and heaters are attached to the condensed-liquid lines. A control unit controls the heaters and the condensed-liquid-line adjusting valves.Type: GrantFiled: February 7, 2008Date of Patent: October 11, 2011Assignee: Hitachi Plant Technologies, Ltd.Inventors: Yuzuru Ito, Yoshishige Endo, Hidekazu Tsudome, Fumiaki Numajiri
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Patent number: 8029650Abstract: A method for purifying used antifreeze is disclosed. An antifreeze recycling systems uses a simple-distillation apparatus adapted to distill clean antifreeze from used antifreeze. A novel scraper blade is used in the simple-distillation apparatus. Also, antifreeze recycling methods that minimize waste and generate nontoxic, landfillable waste are provided. An antifreeze product produced by the present method, and a nontoxic, landfillable sludge product produced by the present method, are disclosed.Type: GrantFiled: September 26, 2007Date of Patent: October 4, 2011Inventor: Dale L. Letcher
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Publication number: 20110224401Abstract: The invention relates to an apparatus for separating a liquid substance mixture by distillation, a method for producing a tetrahydrofuran homopolymer and copolymer in which the oligomers in a liquid starting mixture containing oligomers are separated by distillation in such an apparatus, tetrahydrofuran homopolymers and copolymers which can be obtained using said method and have a narrow distribution of the relative molar mass, and the use thereof.Type: ApplicationFiled: November 29, 2009Publication date: September 15, 2011Inventors: Stefan Käshammer, Rolf Pinkos, Tobias Wabnitz, Rolf-Hartmuth Fischer
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Patent number: 8002953Abstract: 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: GrantFiled: July 13, 2007Date of Patent: August 23, 2011Assignees: AMT International Inc., CPC Corporation, TaiwanInventors: 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
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Publication number: 20110192712Abstract: One exemplary embodiment can be a fractionation zone for an alkylation apparatus. The fractionation zone can be a column adapted to receive a feed including at least one alcohol, water, and at least one ketone. The column may provide an overhead stream including the at least one ketone and a side-stream including the at least one alcohol and water.Type: ApplicationFiled: February 5, 2010Publication date: August 11, 2011Inventors: Charles P. Luebke, David N. Myers
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Patent number: 7931782Abstract: A method of recovering a liquid medium from a mixture containing the liquid medium, the method including: (a) blowing a first gas into the mixture containing the liquid medium to vaporize the liquid medium, in a first vaporizing means, thereby to form a second gas containing which is a mixture of the first gas and vaporized liquid medium; (b) continuously dropwise feeding the mixture containing the liquid medium into a second vaporizing means and counter-flowingly contacting the mixture containing the liquid medium, with the second gas to vaporize additional liquid medium to form a third gas which is a mixture of the second gas and additional vaporized liquid medium; and (c) feeding the third gas into a condensing means to condense the vaporized liquid medium into a liquid and separate the first gas, which is then blown into the first vaporizing means in step (a).Type: GrantFiled: March 26, 2004Date of Patent: April 26, 2011Assignee: The Institute of Creative Chemistry Co., Ltd.Inventors: Sigeru Torii, Kouichi Miki
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Publication number: 20110031101Abstract: The present invention relates to a fractionation process for producing at least two concentration fractions of a fluid including a solute, suspended or dissolved content using at least two fluidly connected evaporator units. The process includes the steps of: feeding a feed fluid including a solute, suspended or dissolved content into at least a first evaporator unit; evaporating a first amount of fluid from the feed fluid in at least the first evaporator unit to produce a first concentrated fluid; feeding at least a portion of the first concentrated fluid into at least a second evaporator unit; and evaporating a second amount of fluid from the first concentrated fluid in at least the second evaporator unit to produce a second concentrated fluid.Type: ApplicationFiled: March 20, 2009Publication date: February 10, 2011Inventor: Stephen Shelley
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Publication number: 20100288624Abstract: A fractionation tray for use in a process column. The fractionation tray is of a type where a first fluid flows downwardly from a downcomer onto the fractionation tray and across the fractionation tray in a first direction. A second fluid flows upwardly through the fractionation tray for interaction with the first fluid. The fractionation tray includes an upper tray section, a lower tray section that is operable to removably engage the upper tray section, a joint region which includes an area of overlap between the upper tray section and the lower tray section. The joint region allows passage of the second fluid therethrough.Type: ApplicationFiled: May 7, 2010Publication date: November 18, 2010Inventors: SooWoong Kim, Gil Jong Kim, Ian G. Buttridge, Michael J. Binkley