Patents by Inventor Meenakshi S. Krishnamoorthy

Meenakshi S. Krishnamoorthy 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).

  • Patent number: 9675965
    Abstract: Improved catalyst supports, supported catalyst, and method of preparing and using the catalysts for the hydrodesulfurization of a residuum hydrocarbon feedstock are disclosed. The catalyst supports comprise titania alumina having 5 wt % or less titania and have greater than 70% of their pore volume in pores having a diameter between 70 ? and 130 ? and less than 2% in pores having a diameter above 1000 ?. Catalysts prepared from the supports contain Groups 6, 9 and 10 metals or metal compounds, and optionally phosphorus, supported on the titania alumina supports. Catalysts in accordance with the invention exhibit improved sulfur and MCR conversion in hydrotreating processes.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: June 13, 2017
    Assignee: Advanced Refining Technologies LLC
    Inventors: Rong He, Stanislaw Plecha, Meenakshi S. Krishnamoorthy, Bharat M. Patel
  • Patent number: 9669394
    Abstract: Improved catalyst supports, supported catalyst, and method of preparing and using the catalysts for the hydrodesulfurization of a residuum hydrocarbon feedstock are disclosed. The catalyst supports comprise titania alumina having 5 wt % or less titania and have greater than 70% of their pore volume in pores having a diameter between 70 ? and 130 ? and less than 2% in pores having a diameter above 1000 ?. Catalysts prepared from the supports contain Groups 6, 9 and 10 metals or metal compounds, and optionally phosphorus, supported on the titania alumina supports. Catalysts in accordance with the invention exhibit improved sulfur and MCR conversion in hydrotreating processes.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: June 6, 2017
    Assignee: Advanced Refining Technologies LLC
    Inventors: Rong He, Stanislaw Plecha, Meenakshi S. Krishnamoorthy, Bharat M. Patel
  • Patent number: 9528059
    Abstract: The process of this invention removes impurities from transesterification products comprising primarily fatty acid alkyl esters (FAAE) that are being processed for final fuel products, such as biodiesel. The inventive process is catalytic, and the resulting ester is suitable for use as biodiesel. Metal oxide and mixed metal oxide catalysts are particularly suitable. The invention is particularly suitable for treating fatty acid alkyl ester compositions comprising impurities such as glycerin, sterol glycosides, and/or triglyceride, diglyceride and/or monoglyceride. The invention is particularly useful in treating FAAE transesterification products made using homogeneous alkali catalysts. The treated ester exhibits improved performance under cold weather conditions, which can be measured by methods such as ASTM 7501 Cold Soak Filtration Test (CSFT).
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: December 27, 2016
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Stephen R. Schmidt, Meenakshi S. Krishnamoorthy, Manoj M. Koranne, Heiko Morell, Jochen G. Metzger
  • Publication number: 20160250622
    Abstract: Improved catalyst supports, supported catalyst, and method of preparing and using the catalysts for the hydrodesulfurization of a residuum hydrocarbon feedstock are disclosed. The catalyst supports comprise titania alumina having 5 wt % or less titania and have greater than 70% of their pore volume in pores having a diameter between 70 ? and 130 ? and less than 2% in pores having a diameter above 1000 ?. Catalysts prepared from the supports contain Groups 6, 9 and 10 metals or metal compounds, and optionally phosphorus, supported on the titania alumina supports. Catalysts in accordance with the invention exhibit improved sulfur and MCR conversion in hydrotreating processes.
    Type: Application
    Filed: May 10, 2016
    Publication date: September 1, 2016
    Inventors: Rong He, Stanislaw Plecha, Meenakshi S. Krishnamoorthy, Bharat M. Patel
  • Publication number: 20160243528
    Abstract: Improved catalyst supports, supported catalyst, and method of preparing and using the catalysts for the hydrodesulfurization of a residuum hydrocarbon feedstock are disclosed. The catalyst supports comprise titania alumina having 5 wt % or less titania and have greater than 70% of their pore volume in pores having a diameter between 70 ? and 130 ? and less than 2% in pores having a diameter above 1000 ?. Catalysts prepared from the supports contain Groups 6, 9 and 10 metals or metal compounds, and optionally phosphorus, supported on the titania alumina supports. Catalysts in accordance with the invention exhibit improved sulfur and MCR conversion in hydrotreating processes.
    Type: Application
    Filed: May 4, 2016
    Publication date: August 25, 2016
    Inventors: Rong He, Stanislaw Plecha, Meenakshi S. Krishnamoorthy, Bharat M. Patel
  • Patent number: 9415384
    Abstract: Improved catalyst supports, supported catalyst, and method of preparing and using the catalysts for the hydrodesulfurization of a residuum hydrocarbon feedstock are disclosed. The catalyst supports comprise titania alumina having 5 wt % or less titania and have greater than 70% of their pore volume in pores having a diameter between 70 and 130 and less than 2% in pores having a diameter above 1000. Catalysts prepared from the supports contain Groups 6, 9 and 10 metals or metal compounds, and optionally phosphorus, supported on the titania alumina supports. Catalysts in accordance with the invention exhibit improved sulfur and MCR conversion in hydrotreating processes.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: August 16, 2016
    Assignee: Advanced Refining Technologies LLC
    Inventors: Rong He, Stanislaw Plecha, Meenakshi S. Krishnamoorthy, Bharat M. Patel
  • Publication number: 20150144532
    Abstract: Improved catalyst supports, supported catalyst, and method of preparing and using the catalysts for the hydrodesulfurization of a residuum hydrocarbon feedstock are disclosed. The catalyst supports comprise titania alumina having 5 wt % or less titania and have greater than 70% of their pore volume in pores having a diameter between 70 and 130 and less than 2% in pores having a diameter above 1000. Catalysts prepared from the supports contain Groups 6, 9 and 10 metals or metal compounds, and optionally phosphorus, supported on the titania alumina supports. Catalysts in accordance with the invention exhibit improved sulfur and MCR conversion in hydrotreating processes.
    Type: Application
    Filed: June 20, 2013
    Publication date: May 28, 2015
    Applicant: Advanced Refining Technologies LLC
    Inventors: Rong He, Stanislaw Plecha, Meenakshi S. Krishnamoorthy, Bharat M. Patel
  • Publication number: 20140109466
    Abstract: The process of this invention removes impurities from transesterification products comprising primarily fatty acid alkyl esters (FAAE) that are being processed for final fuel products, such as biodiesel. The inventive process is catalytic, and the resulting ester is suitable for use as biodiesel. Metal oxide and mixed metal oxide catalysts are particularly suitable. The invention is particularly suitable for treating fatty acid alkyl ester compositions comprising impurities such as glycerin, sterol glycosides, and/or triglyceride, diglyceride and/or monoglyceride. The invention is particularly useful in treating FAAE transesterification products made using homogeneous alkali catalysts. The treated ester exhibits improved performance under cold weather conditions, which can be measured by methods such as ASTM 7501 Cold Soak Filtration Test (CSFT).
    Type: Application
    Filed: May 22, 2012
    Publication date: April 24, 2014
    Applicant: W.R. GRACE & CO. Drive
    Inventors: Stephen R. Schmidt, Meenakshi S. Krishnamoorthy, Manoj M. Koranne, Heiko Morell, Jochen G. Metzger