Patents Examined by Timothy C Vanoy
  • Patent number: 10807038
    Abstract: The invention is directed to a process and a system for removing sulfur dioxide from a feed gas stream. In the process the feed gas pre-scrubbed. Then SO2 is absorbed from the gas with an absorbing medium. The spent absorbing medium is regenerated. These process steps are interchanged with a caustic treatment in the pre-scrubbing zone in case of a very high SO2 content in the feed gas stream. The system comprises a pre-scrubbing unit, an absorption unit, and a regeneration unit. The system is characterized in that the pre-scrubber unit comprises an inlet for an aqueous solution comprising a strong base. These are a simple, cost-efficient and reliable process and facility for processing gas with a varying SO2 content.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: October 20, 2020
    Assignee: Shell Oil Company
    Inventors: Xijian Li, FengDan Wang
  • Patent number: 10800684
    Abstract: Methods for the use of zinc ammonium carbonate as a scavenger of sulfur-containing species encountered in oilfield operations are provided. In one embodiment, the methods include introducing a sulfide scavenging additive including zinc ammonium carbonate into at least a portion of a conduit through which a potential sulfur-containing fluid is flowing.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: October 13, 2020
    Assignee: Multi-Chem Group, LLC
    Inventors: Philippe Prince, Kiran Gawas, Yulia Mosina
  • Patent number: 10793434
    Abstract: Embodiments of a hydrogen sulfide destruction and sulfur recovery system of the present invention generally include a tower, sulfur introduction piping, oxygen introduction piping, and hydrogen sulfide introduction piping, wherein said tower contains a lower cooling component positioned in a vapor space of a tower bottom section, a lower vapor space fluidly connected to an upper vapor space, one or more upper and lower catalyst beds, a first condensation cooling component and a collection tray disposed in a first condensation section, a second condensation cooling component disposed in a second condensation section, a fluid pathway, partially defined by a collection tray weir, between the first condensation section and the second condensation section, a fluid pathway between a bottom section of the second condensation section and the tower bottom section, and a second condensation section bottom section gas outlet. Embodiments of a method of using the system are also provided.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: October 6, 2020
    Inventor: Strom W. Smith
  • Patent number: 10792363
    Abstract: Described herein is anhydrous sodium thiosulfate, methods for synthesizing anhydrous sodium thiosulfate, pharmaceutical compositions thereof, and methods of treating ototoxicity. Anhydrous sodium thiosulfate is synthesized from sodium sulfite, sulfur, and cetylpyridinium chloride. The anhydrous sodium thiosulfate is formulated into a pharmaceutical composition comprising a buffer and solvent. These compositions are useful for eliminating or reducing ototoxicity in pediatric patients receiving platinum based chemotherapeutics.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: October 6, 2020
    Assignee: FENNEC PHARMACEUTICALS, INC.
    Inventors: Thomas Claiborne Lovelace, Joseph Alexander Moore, III, Christopher McKinnon Lee, Daniel Logan Kirschner
  • Patent number: 10780397
    Abstract: Disclosed herein are base metal catalyst devices for removing ozone, volatile organic compounds, and other pollutants from an air flow stream. A catalyst device includes a housing, a solid substrate disposed within the housing, and a catalyst layer disposed on the substrate. The catalyst layer includes a first base metal catalyst at a first mass percent, a second base metal catalyst at a second mass percent, and a support material impregnated with at least one of the first base metal catalyst or the second base metal catalyst.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: September 22, 2020
    Assignee: BASF CORPORATION
    Inventors: David M. Robinson, Mark T. Buelow, Laif R. Alden, Michael Durilla
  • Patent number: 10773968
    Abstract: A process is provided for producing potassium sulfate from potassium chloride and sulfuric acid. The process entails mixing potassium chloride with the water to form a potassium chloride slurry which is mixed with recycled sulfuric acid to form a K+, Ct?, SO42? acid mixture. This mixture is subjected to a crystallization process that produces potassium sulfate crystals and a hydrochloric acid-water vapor. The hydrochloric acid is separated from the hydrochloric acid-water vapor to form a hydrochloric acid solution.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: September 15, 2020
    Assignee: Veolia Water Technologies, Inc.
    Inventors: Sebastien Bessenet, Didier Le Flammec
  • Patent number: 10773969
    Abstract: A method of producing potassium sulfate by employing sodium sulfate and potassium chloride sources is disclosed. The method includes a crystallization process that yields a mother liquor containing sulfate, sodium and chloride. The mother liquor is directed to an anion segregation unit that produces a reject or retentate rich in sulfate which is recycled and employed in the production of the potassium sulfate. Further, the anion segregation unit produces a permeate that is depleted in sulfate but includes sodium and chloride and is directed to a sodium chloride crystallizer for producing sodium chloride.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: September 15, 2020
    Assignee: Veolia Water Technologies, Inc.
    Inventors: Sebastien Bessenet, Jinhai Feng, James F. Rieke, Timothy F. Rittoff
  • Patent number: 10759672
    Abstract: The present invention provides a barium sulfate spherical composite powder that has significantly high strength and excellent texture, and achieves high haze while maintaining high total light transmittance, and a method for producing such a composite powder. The present invention relates to a method for producing a barium sulfate spherical composite powder, which is a method for producing a spherical composite powder of barium sulfate and silica, the method comprising the steps of (1) preparing a slurry containing particulate barium sulfate and a silica sol, (2) spray-drying the slurry, and (3) firing a dry substance obtained in the step (2).
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: September 1, 2020
    Assignee: SAKAI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Satoshi Kamada, Takuro Ashida
  • Patent number: 10758863
    Abstract: The present disclose is directed to a method for controlling iodine levels in wet scrubbers, and, in particular, recirculating wet scrubbers by removing the iodine from the scrubbing solution, such as by using ion exchange, absorption, adsorption, precipitation, filtration, solvent extraction, ion pair extraction, and an aqueous two-phase extraction.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: September 1, 2020
    Assignee: ADA-ES, INC.
    Inventors: Sharon Sjostrom, Kenneth E. Baldrey, Constance Senior
  • Patent number: 10737218
    Abstract: Disclosed herein are base metal catalyst devices for removing ozone, volatile organic compounds, and other pollutants from an air flow stream. A catalyst device includes a housing, a solid substrate disposed within the housing, and a catalyst layer disposed on the substrate. The catalyst layer includes a first base metal catalyst at a first mass percent, a second base metal catalyst at a second mass percent, and a support material impregnated with at least one of the first base metal catalyst or the second base metal catalyst.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: August 11, 2020
    Assignee: BASF CORPORATION
    Inventors: David M. Robinson, Mark T. Buelow, Laif R. Alden, Michael Durilla
  • Patent number: 10730012
    Abstract: Various embodiments disclosed relate to extraction of target materials using a CZTS sorbent. A method of extracting a target material from a medium includes contacting a copper zinc tin sulfur (CZTS) sorbent with the target material in the medium including the target material to form a used CZTS sorbent that includes the target material. The method also includes separating the used CZTS sorbent from the medium.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: August 4, 2020
    Assignee: CHEMICAL AND METAL TECHNOLOGIES LLC
    Inventors: Hal Stuhler, Lori Stuhler, Van T. Walworth, Scott Drummond
  • Patent number: 10730009
    Abstract: A process for purifying exhaust air from a granulation plant for producing a urea-containing granulate includes contacting a gas stream containing a urea-containing dust and ammonia with a sulfuric acid solution or a nitric acid solution in a scrubbing process. The scrubbing process involves scrubbing the gas stream with a first weakly acidic scrubbing solution in a first scrubbing stage and scrubbing the gas stream exiting the first scrubbing stage with a second scrubbing solution having a lower pH than the first weakly acidic scrubbing solution in a second scrubbing stage. The acidic scrubbing solution generated in the second scrubbing stage may be recycled into the first scrubbing stage via a conduit and used therein as the first weakly acidic scrubbing solution. A pre-scrubbing stage for scrubbing dust out of the gas stream may additionally be arranged upstream of the first scrubbing stage.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: August 4, 2020
    Assignees: THYSSENKRUPP FERTILIZER TECHNOLOGY GMBH, THYSSENKRUPP AG
    Inventors: Thomas Gerner, Rositsa Marianova Rieks
  • Patent number: 10730015
    Abstract: The present disclosure is directed to the use of elemental or speciated iodine and bromine to control total mercury emissions.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: August 4, 2020
    Assignee: ADA-ES, INC.
    Inventors: Michael D. Durham, Sharon Sjostrom, Kenneth E. Baldrey
  • Patent number: 10730750
    Abstract: Provided is an unique, efficient and cost-effective process for the recovery of acid from acid-rich solutions. The process of the subject matter utilizes a strong oxidizer, such as Caro's acid, to disintegrate or render insoluble organic or inorganic materials such as carbohydrates and complexes thereof contained in acid-rich solutions, to make efficient and simple the separation and recovery of the acid solution. The acid recovered thus obtained is free of organic matter, and containing nearly all of the acid originally contained in the acid-rich solution.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: August 4, 2020
    Assignee: MELODEA LTD.
    Inventors: Shaul Lapidot, Clarite Azerraf, Inbar Kremer
  • Patent number: 10731095
    Abstract: A flue gas additive is provided that includes both a nitrogenous component to reduce gas phase nitrogen oxides and a halogen-containing component to oxidize gas phase elemental mercury.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: August 4, 2020
    Assignee: ADA-ES, Inc.
    Inventors: Constance Senior, Gregory M. Filippelli, Cynthia Jean Bustard, Michael D. Durham, William J. Morris, Sharon M. Sjostrom
  • Patent number: 10722843
    Abstract: The present invention relates to a method and a system for catalytic oxidation of a lean H2S stream. More specifically, the invention concerns a novel way of removing sulfur dioxide (SO2) formed by catalytic oxidation of hydrogen sulfide (H2S) with the purpose of removing H2S from a gas. This catalytic oxidation of H2S yields sulfur dioxide (SO2) through the use of known catalysts, so-called SMC catalysts.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: July 28, 2020
    Assignee: HALDOR TOPSØE A/S
    Inventors: Hans Qiongxiao Wu, Tommy Bian Xiang, Niklas Bengt Jakobsson, Rasmus Trane-Restrup, Souheil Saadi
  • Patent number: 10722844
    Abstract: Presented is a process for the regeneration of a deactivated nitrogen oxide decomposition catalyst of a selective catalytic reduction system that is a component of a flue gas treating system that is one of parallel flue gas treating systems. The selective catalytic reduction system is isolated to provide a closed system in which a regeneration gas is circulated to regenerate the deactivated nitrogen oxide decomposition catalyst. Denitrified flue gas from a parallel flue gas treating system is introduced and used within the closed system as regeneration gas.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: July 28, 2020
    Assignee: SHELL OIL COMPANY
    Inventor: Guido Seng
  • Patent number: 10724411
    Abstract: A diesel oxidation catalyst, containing a washcoat containing four layers, the washcoat being disposed on a substrate, wherein the washcoat contains: a first layer containing a first platinum group metal supported on a first metal oxide support material, wherein the first layer is disposed on the substrate; a second layer containing a second platinum group metal supported on a second metal oxide support material, and containing a fifth platinum group metal, wherein the second layer is disposed on the first layer; a third layer containing a third platinum group metal supported on a third metal oxide support material and containing a zeolitic material containing Fe and containing a sixth platinum group metal; and a fourth layer containing a fourth platinum group metal and a fourth metal oxide.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: July 28, 2020
    Assignee: BASF Corporation
    Inventors: Karifala Dumbuya, Claudia Zabel, Shiang Sung
  • Patent number: 10723632
    Abstract: Magnesium sulfate granulates contain at least 90 wt. % synthetic magnesium sulphate hydrate with respect to the total mass of the magnesium sulphate granulate, and have a dry loss of less than 2 wt. % determined by drying of the granulate for 2 hours at 105° C. and 1 bar. Further, a method is used for producing said magnesium sulfate granulates and to their use in urea-containing fertilizer compositions.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: July 28, 2020
    Assignee: K+S Aktiengesellschaft
    Inventors: Guido Baucke, Armin Dietrich, David Scherr, Ludger Waldmann
  • Patent number: 10717042
    Abstract: The present invention relates to a process for taking up one or more nitrogen oxide(s) from a gaseous and/or aerosol or liquid medium using at least one particulate earth alkali carbonate-comprising material and/or at least one particulate earth alkali phosphate-comprising material as well as an adsorbing material comprising said at least one particulate earth alkali carbonate-comprising material and/or at least one particulate earth alkali phosphate-comprising material.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: July 21, 2020
    Assignee: Omya International AG
    Inventors: Christophe Laporte, Daniel Frey, Kai Max Hettmann, Samuel Rentsch, Detlef Gysau, Patrick A. C. Gane