Patents by Inventor Deepak Lumba

Deepak Lumba 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).

  • Cryogenic cooling of exothermic reactor
    Patent number: 5943869
    Abstract: Method and apparatus for effectively and safely using cryogenic liquid to cool a reactor vessel housing an exothermic reaction wherein the cryogenic liquid is subcooled, valved into the reactor in a downward direction, and shielded by annular coaxial shielding gas upon injection into the reactor.
    Type: Grant
    Filed: May 12, 1998
    Date of Patent: August 31, 1999
    Assignee: Praxair Technology, Inc.
    Inventors: Alan Tat Yan Cheng, Deepak Lumba
  • High efficiency heat and mass transfer for vapor phase heterogeneous reactions
    Patent number: 5856533
    Abstract: Heterogeneous vapor phase oxidation and other reactions are carried out at the surface of a solid catalyst, with both gaseous reactants and the solid catalyst being dispersed in a recirculating liquid solvent. Reaction and product absorption are combined into a single processing step, with enhanced catalyst performance, and product selectivity and product yields, enhanced mass and heat transfer characteristics and reduced risk of forming explosive mixtures in the course of a particular reaction.
    Type: Grant
    Filed: December 28, 1995
    Date of Patent: January 5, 1999
    Assignee: Praxair Technology, Inc.
    Inventors: Joshua Brien Sweeney, Roger William Day, Deepak Lumba
  • Cryogenic cooling of exothermic reactor
    Patent number: 5763544
    Abstract: Method and apparatus for effectively and safely using cryogenic liquid to cool a reactor vessel housing an exothermic reaction wherein the cryogenic liquid is subcooled, valved into the reactor in a downward direction, and shielded by annular coaxial shielding gas upon injection into the reactor.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: June 9, 1998
    Assignee: Praxair Technology, Inc.
    Inventors: Alan Tat Yan Cheng, Deepak Lumba
  • Cryogenic system for recovery of volatile compounds
    Patent number: 5634355
    Abstract: A system for the recovery of volatile compounds comprising a direct contact condenser and an indirect heat exchanger, wherein the heat exchanger is driven by cryogenic fluid, and a heat exchange fluid, having the same composition as the volatile compound, recirculates between the condenser and the heat exchanger.
    Type: Grant
    Filed: August 31, 1995
    Date of Patent: June 3, 1997
    Assignee: Praxair Technology, Inc.
    Inventors: Alan T. Y. Cheng, Deepak Lumba