Patents by Inventor Prasenjeet Ghosh

Prasenjeet Ghosh 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).

  • Molecular sieve composition EMM-13, a method of making and a process of using the same
    Patent number: 8704023
    Abstract: This disclosure relates to a molecular sieve comprising a framework of tetrahedral atoms bridged by oxygen atoms, the tetrahedral atom framework being defined by a unit cell with atomic coordinates in nanometers shown in Table 3.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: April 22, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Wieslaw J. Roth, Douglas L. Dorset, Gordon J. Kennedy, Thomas Yorke, Terry Eugene Helton, Prasenjeet Ghosh, Joshi V. Yogesh
  • Process for producing cyclohexylbenzene
    Patent number: 8329956
    Abstract: In a process for producing cyclohexylbenzene, benzene and hydrogen are contacted under hydroalkylation conditions with a catalyst system comprising a MCM-22 family molecular sieve and at least one hydrogenation metal. The conditions comprise a temperature of about 140° C. to about 175° C., a pressure of about 135 psig to about 175 psig (931 kPag to 1207 kPag), a hydrogen to benzene molar ratio of about 0.30 to about 0.65 and a weight hourly space velocity of benzene of about 0.26 to about 1.05 hr?1.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: December 11, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jane C. Cheng, Tan-Jen Chen, Prasenjeet Ghosh
  • Process For Producing Cyclohexylbenzene
    Publication number: 20120178969
    Abstract: In a process for producing cyclohexylbenzene, benzene and hydrogen are contacted under hydroalkylation conditions with a catalyst system comprising a MCM-22 family molecular sieve and at least one hydrogenation metal. The conditions comprise a temperature of about 140° C. to about 175° C., a pressure of about 135 psig to about 175 psig (931 kPag to 1207 kPag), a hydrogen to benzene molar ratio of about 0.30 to about 0.65 and a weight hourly space velocity of benzene of about 0.26 to about 1.05 hr?1.
    Type: Application
    Filed: March 1, 2012
    Publication date: July 12, 2012
    Inventors: Jane C. CHENG, Tan-Jen CHEN, Prasenjeet GHOSH
  • Process for producing cyclohexylbenzene
    Patent number: 8178728
    Abstract: In a process for producing cyclohexylbenzene, benzene and hydrogen are contacted under hydroalkylation conditions with a catalyst system comprising a MCM-22 family molecular sieve and at least one hydrogenation metal. The conditions comprise a temperature of about 140° C. to about 175° C., a pressure of about 135 psig to about 175 psig (931 kPag to 1207 kPag), a hydrogen to benzene molar ratio of about 0.30 to about 0.65 and a weight hourly space velocity of benzene of about 0.26 to about 1.05 hr?1.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: May 15, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jane C. Cheng, Tan-Jen Chen, Prasenjeet Ghosh
  • Novel Molecular Sieve Composition EMM-13, A Method of Making and a Process of Using the Same
    Publication number: 20110166402
    Abstract: This disclosure relates to a molecular sieve comprising a framework of tetrahedral atoms bridged by oxygen atoms, the tetrahedral atom framework being defined by a unit cell with atomic coordinates in nanometers shown in Table 3.
    Type: Application
    Filed: July 15, 2009
    Publication date: July 7, 2011
    Inventors: Wieslaw J. Roth, Douglas L. Dorset, Gordon J. Kennedy, Thomas Yorke, Terry Eugene Helton, Prasenjeet Ghosh, Yogesh V. Joshi
  • Process for Producing Cyclohexylbenzene
    Publication number: 20110015457
    Abstract: In a process for producing cyclohexylbenzene, benzene and hydrogen are contacted under hydroalkylation conditions with a catalyst system comprising a MCM-22 family molecular sieve and at least one hydrogenation metal. The conditions comprise a temperature of about 140° C. to about 175° C., a pressure of about 135 psig to about 175 psig (931 kPag to 1207 kPag), a hydrogen to benzene molar ratio of about 0.30 to about 0.65 and a weight hourly space velocity of benzene of about 0.26 to about 1.05 hr?1.
    Type: Application
    Filed: February 24, 2009
    Publication date: January 20, 2011
    Inventors: Jane C. Cheng, Tan-Jen Chen, Prasenjeet Ghosh