Patents by Inventor Hari Prasad Mangalapally

Hari Prasad Mangalapally has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210371281
    Abstract: In a cyclic anthraquinone process for producing hydrogen peroxide, which comprises a distillation unit with vapor compression for concentrating hydrogen peroxide, aqueous condensate from the distillation unit is passed over a bed of a cation exchange resin in its protonated from to provide a purified condensate, and the purified condensate is used as extractant for extracting hydrogen peroxide in the anthraquinone process, as column reflux for the distillation unit or as a diluent for diluting an aqueous hydrogen peroxide solution.
    Type: Application
    Filed: May 26, 2021
    Publication date: December 2, 2021
    Inventors: Nils Henning Seidel, Johannes Kamp, Jürgen Glenneberg, Christian Panz, Eduardo Federico Arévalo Saade, Hari Prasad Mangalapally
  • Publication number: 20160045857
    Abstract: The invention is directed to a method for separating acid gases from a gas mixture in which the gas mixture is contacted with an absorption medium which comprises water and at least one amine and has a phase-separation temperature in the range from 0 to 130° C. In addition, the invention is directed to a device which can be used for carrying out this method.
    Type: Application
    Filed: October 28, 2015
    Publication date: February 18, 2016
    Applicant: Evonik Degusssa GmbH
    Inventors: Jörn Rolker, Matthias Seiler, Ralf Meier, Udo Knippenberg, Rolf Schneider, Muhammad Irfan, Hari Prasad Mangalapally
  • Patent number: 9221007
    Abstract: The invention is directed to a method for separating acid gases from a gas mixture in which the gas mixture is contacted with an absorption medium which comprises water and at least one amine and has a phase-separation temperature in the range from 0 to 130° C. In addition, the invention is directed to a device which can be used for carrying out this method.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: December 29, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Jörn Rolker, Matthias Seiler, Ralf Meier, Udo Knippenberg, Rolf Schneider, Muhammad Irfan, Hari Prasad Mangalapally
  • Patent number: 8523979
    Abstract: A process for removing acid gases from a fluid stream in which a) the fluid stream is treated with an absorption liquid which comprises at least one amine, a stripping aid, and water, wherein the stripping aid is selected from water-miscible liquids, the boiling temperature of which at atmospheric pressure is lower than that of water, b) the treated fluid stream is treated with a liquid aqueous phase in order to convert entrained stripping aid at least in part to the aqueous phase, c) the loaded aqueous phase is heated in order to expel the stripping aid at least in part, and d) the regenerated aqueous phase is cooled and at least in part recycled to step b). The stripping aid promotes the regeneration of the absorbent by stripping. Emissions of the stripping aid via the treated fluid stream are avoided by the treated fluid stream being scrubbed with a liquid aqueous phase.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: September 3, 2013
    Assignee: BASF SE
    Inventors: Hugo Rafael Garcia Andarcia, Ralf Notz, Georg Sieder, Oliver Spuhl, Hans Hasse, Inga Toennies, Sebastian Hoch, Hari Prasad Mangalapally
  • Publication number: 20100319540
    Abstract: A process for removing acid gases from a fluid stream in which a) the fluid stream is treated with an absorption liquid which comprises at least one amine, a stripping aid, and water, wherein the stripping aid is selected from water-miscible liquids, the boiling temperature of which at atmospheric pressure is lower than that of water, b) the treated fluid stream is treated with a liquid aqueous phase in order to convert entrained stripping aid at least in part to the aqueous phase, c) the loaded aqueous phase is heated in order to expel the stripping aid at least in part, and d) the regenerated aqueous phase is cooled and at least in part recycled to step b). The stripping aid promotes the regeneration of the absorbent by stripping. Emissions of the stripping aid via the treated fluid stream are avoided by the treated fluid stream being scrubbed with a liquid aqueous phase.
    Type: Application
    Filed: June 21, 2010
    Publication date: December 23, 2010
    Applicant: BASF SE
    Inventors: Hugo Rafael Garcia Andarcia, Ralf Notz, Georg Sieder, Oliver Spuhl, Hans Hasse, Inga Toennies, Sebastian Hoch, Hari Prasad Mangalapally