Patents by Inventor Kartick Chandra Mondal

Kartick Chandra Mondal 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: 20180029015
    Abstract: A catalytic composite for a cyclic process of adiabatic, non-oxidative dehydrogenation of an alkane into an olefin, comprising a dehydrogenation catalyst, a semimetal and a carrier supporting the catalyst and the semimetal. During the reduction and/or regeneration stages of the adiabatic process, the semimetal releases heat which can be used to initiate the dehydrogenation reactions, which are endothermic in nature, thereby reducing the need for hot air flow and combustion of coke as heat input. The semi-metal is inert towards the dehydrogenation reaction itself, alkane feed and olefin product as well as other side reactions of the cyclic process such as cracking and decoking.
    Type: Application
    Filed: February 22, 2016
    Publication date: February 1, 2018
    Inventors: KARTICK CHANDRA MONDAL, DIPABALI ROY CHOWDHURY, VELAYUTHAM SARAVANAN
  • Patent number: 9540292
    Abstract: The invention relates to a process for preparing a catalyst composition comprising an unsupported catalyst comprising ZrV2O7, comprising: mixing ammonium meta-vanadate and zirconyl nitrate, drying the mixture and calcining the dried mixture at a temperature range of 600-900° C. for 2-10 hours to obtain the unsupported catalyst, and mixing the unsupported catalyst with Al2O3 without heating.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: January 10, 2017
    Assignee: SAUDI BASIC INDUSTRIES CORPORATION
    Inventors: Kartick Chandra Mondal, Himanshu Patel
  • Patent number: 9388092
    Abstract: The present invention relates to a process for producing aromatic hydrocarbons comprising contacting a feedstream comprising an oxygenate with a catalyst composition comprising a medium pore-size aluminosilicate zeolite further comprising gallium and one or more elements selected from Group 12 of the Periodic Table. The process of the present invention is preferably performed in absence of any feed diluents.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: July 12, 2016
    Assignee: SAUDI BASIC INDUSTRIES CORPORATION
    Inventor: Kartick Chandra Mondal
  • Patent number: 9120714
    Abstract: The invention relates to a process for producing an alkene by non-oxidative dehydrogenation of an alkane, comprising contacting a feed stream comprising the alkane with a catalyst composition comprising an unsupported catalyst comprising ZrV2O7 at a temperature of 400 to 600° C.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: September 1, 2015
    Assignee: SAUDI BASIC INDUSTRIES CORPORATION
    Inventors: Kartick Chandra Mondal, Patel Himanshu
  • Publication number: 20150238933
    Abstract: The invention relates to a process for preparing a catalyst composition comprising an unsupported catalyst comprising ZrV2O7, comprising: mixing ammonium meta-vanadate and zirconyl nitrate, drying the mixture and calcining the dried mixture at a temperature range of 600-900° C. for 2-10 hours to obtain the unsupported catalyst, and mixing the unsupported catalyst with Al2O3 without heating.
    Type: Application
    Filed: May 12, 2015
    Publication date: August 27, 2015
    Inventors: Kartick Chandra Mondal, Patel Himanshu
  • Publication number: 20130317273
    Abstract: The invention relates to a process for producing an alkene by non-oxidative dehydrogenation of an alkane, comprising contacting a feed stream comprising the alkane with a catalyst composition comprising an unsupported catalyst comprising ZrV2O7 at a temperature of 400 to 600° C.
    Type: Application
    Filed: May 24, 2013
    Publication date: November 28, 2013
    Applicant: SAUDI BASIC INDUSTRIES CORPORATION
    Inventors: Kartick Chandra Mondal, Patel Himanshu
  • Patent number: 7432222
    Abstract: This invention discloses a high temperature stable, supported, non-noble metal catalyst, represented by a general formula: NiCoaCebMgcYdOx(y)/S, wherein S is a low surface area, macroporous, highly sintered, solid support comprising zirconium and hafnium oxides with less than 3 wt % silica and/or alumina having a surface area less than 1.0 m2/g and pore diameter greater than 0.1 micron, in the form of pellet, ring, monolith or granules; a is from 0.01 to 10; b is from 0.001 to 10; c is from 0.001 to 10; d is from 0.005 to 5; x is number of oxygen atoms required to fulfill the valance requirement of the metallic elements; and y is weight percent loading of the active catalyst mass, on the support, S, in the range from 0.7% to 70%. The invention also discloses a process for the partial oxidation of hydrocarbon(s) to syngas using the thermally stable catalyst.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: October 7, 2008
    Assignee: Council of Scientific and Industrial Research
    Inventors: Vasant Ramchandra Choudhary, Kartick Chandra Mondal, Ajit Singh Mamman
  • Patent number: 7022888
    Abstract: A process for the non-oxidative conversion of methane simultaneously with the conversion of an organic oxygenate, represented by a general formula: CnH2n+1OCmH2m+1, wherein C, H and O are carbon, hydrogen and oxygen elements, respectively; n is an integer having a value between 1 and 4; and m is an integer having a value between zero and 4, to C2+ hydrocarbons, particularly to gasoline range C6–C10 hydrocarbons and hydrogen, using a bifunctional pentasil zeolite catalyst, having strong acid and dehydrogenation functions, at a temperature below 700° C. is disclosed. In this process the moles of methane converted per mole of oxygenate converted is above 1.0, depending upon the process conditions.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: April 4, 2006
    Assignee: Council of Scientific and Industrial Research
    Inventors: Vasant Ramchandra Choudhary, Kartick Chandra Mondal, Shafeek Abdul Rashid Mulla
  • Publication number: 20040192990
    Abstract: A process for the non-oxidative conversion of methane simultaneously with the conversion of an organic oxygenate, represented by a general formula: CnH2n+1OCmH2m+1, wherein C, H and O are carbon, hydrogen and oxygen elements, respectively; n is an integer having a value between 1 and 4; and m is an integer having a value between zero and 4, to C2+ hydrocarbons, particularly to gasoline range C6-C10 hydrocarbons and hydrogen, using a bifunctional pentasil zeolite catalyst, having strong acid and dehydrogenation functions, at a temperature below 700° C. is disclosed. In this process the moles of methane converted per mole of oxygenate converted is above 1.0, depending upon the process conditions.
    Type: Application
    Filed: March 27, 2003
    Publication date: September 30, 2004
    Inventors: Vasant Ramchandra Choudhary, Kartick Chandra Mondal, Shafeek Abdul Rashid Mulla