Patents by Inventor Dhananjay B. Ghonasgi

Dhananjay B. Ghonasgi 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: 11648519
    Abstract: Systems for the catalytic activation and/or dehydrogenation of a paraffin feed stream that is enriched in C5 alkanes to produce olefins that are then hydrated in the presence of water to produce C5 alcohols. Optionally, paraffin isomers are separated and the n-paraffins isomerized prior to catalytic activation and/or dehydrogenation.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: May 16, 2023
    Inventors: Jianhua Yao, Anthony O. Baldridge, Neal D. McDaniel, James A. Suttil, Chengtian Wu, Dhananjay B. Ghonasgi, Maziar Sardashti, Bruce B. Randolph
  • Publication number: 20210222079
    Abstract: Processes for the catalytic activation and/or dehydrogenation of a paraffin feed stream that is enriched in C5 alkanes to produce olefins that are then hydrated in the presence of water to produce C5 alcohols. Optionally, paraffin isomers are separated and the n-paraffins isomerized prior to catalytic activation and/or dehydrogenation.
    Type: Application
    Filed: January 20, 2021
    Publication date: July 22, 2021
    Applicant: PHILLIPS 66 COMPANY
    Inventors: Jianhua Yao, Anthony O. Baldridge, Neal D. McDaniel, James A. Suttil, Chengtian Wu, Dhananjay B. Ghonasgi, Maziar Sardashti, Bruce B. Randolph
  • Publication number: 20210220788
    Abstract: Systems for the catalytic activation and/or dehydrogenation of a paraffin feed stream that is enriched in C5 alkanes to produce olefins that are then hydrated in the presence of water to produce C5 alcohols. Optionally, paraffin isomers are separated and the n-paraffins isomerized prior to catalytic activation and/or dehydrogenation.
    Type: Application
    Filed: January 20, 2021
    Publication date: July 22, 2021
    Applicant: PHILLIPS 66 COMPANY
    Inventors: Jianhua Yao, Anthony O. Baldridge, Neal D. McDaniel, James A. Suttil, Chengtian Wu, Dhananjay B. Ghonasgi, Maziar Sardashti, Bruce B. Randolph
  • Patent number: 10400182
    Abstract: The present disclosure relates generally processes and systems for converting a mixture of light hydrocarbons to liquid transportation fuels by first cracking the light hydrocarbons to an intermediate comprising olefins, which is converted by contacting with a catalyst comprising at least one zeolite in two separate conversion stages with an intervening recovery of liquid product. The first stage conversion favors oligomerization of larger olefins to form diesel range products that are collected prior to directing unconverted smaller olefins to be oligomerized in a second stage conversion conducted at a higher temperature and lower pressure.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: September 3, 2019
    Assignee: Phillips 66 Company
    Inventors: Jianhua Yao, Hong Xie, Bruce B. Randolph, Steven E. Lusk, Dhananjay B. Ghonasgi, Jonathan R. Marda
  • Patent number: 10252955
    Abstract: The present disclosure relates generally processes and systems for converting a mixture of light hydrocarbons to liquid transportation fuels by first cracking the light hydrocarbons to an intermediate comprising olefins, which is converted by contacting with a catalyst comprising at least one zeolite in two separate conversion stages with an intervening recovery of liquid product. The first stage conversion favors oligomerization of larger olefins to form diesel range products that are collected prior to directing unconverted smaller olefins to be oligomerized in a second stage conversion conducted at a higher temperature and lower pressure.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: April 9, 2019
    Assignee: Phillips 66 Company
    Inventors: Jianhua Yao, Hong Xie, Bruce B. Randolph, Steven E. Lusk, Dhananjay B. Ghonasgi, Jonathan R. Marda
  • Publication number: 20180207626
    Abstract: The present disclosure relates generally processes and systems for converting a mixture of light hydrocarbons to liquid transportation fuels by first cracking the light hydrocarbons to an intermediate comprising olefins, which is converted by contacting with a catalyst comprising at least one zeolite in two separate conversion stages with an intervening recovery of liquid product. The first stage conversion favors oligomerization of larger olefins to form diesel range products that are collected prior to directing unconverted smaller olefins to be oligomerized in a second stage conversion conducted at a higher temperature and lower pressure.
    Type: Application
    Filed: January 15, 2018
    Publication date: July 26, 2018
    Applicant: PHILLIPS 66 COMPANY
    Inventors: Jianhua YAO, Hong XIE, Bruce B. RANDOLPH, Steven E. LUSK, Dhananjay B. GHONASGI, Jonathan R. MARDA
  • Publication number: 20180208861
    Abstract: The present disclosure relates generally processes and systems for converting a mixture of light hydrocarbons to liquid transportation fuels by first cracking the light hydrocarbons to an intermediate comprising olefins, which is converted by contacting with a catalyst comprising at least one zeolite in two separate conversion stages with an intervening recovery of liquid product. The first stage conversion favors oligomerization of larger olefins to form diesel range products that are collected prior to directing unconverted smaller olefins to be oligomerized in a second stage conversion conducted at a higher temperature and lower pressure.
    Type: Application
    Filed: January 15, 2018
    Publication date: July 26, 2018
    Applicant: PHILLIPS 66 COMPANY
    Inventors: Jianhua YAO, Hong XIE, Bruce B. RANDOLPH, Steven E. LUSK, Dhananjay B. GHONASGI, Jonathan R. MARDA
  • Patent number: 9371256
    Abstract: A heated petroleum-derived hydrocarbon is contacted with a triglyceride feed in a thermal cracking zone to decompose and remove impurities prior to hydrotreating the mixture to fuel range hydrocarbon. This process allows the use of a variety of low cost triglyceride feeds while reducing fouling of process equipment and catalyst. The process also reduces the use of chemicals required for conventional degumming of triglyceride feeds.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: June 21, 2016
    Assignee: PHILLIPS 66 COMPANY
    Inventors: Jianhua Yao, Edward L. Sughrue, II, Dhananjay B. Ghonasgi, Xiaochun Xu
  • Patent number: 8932453
    Abstract: This invention relates to a hydroprocessing process with improved catalyst activity when hydroprocessing petroleum based feedstock or an oxygen containing feedstock. This invention also relates to a hydrotreating process with improved hydrodesulfurization (HDS) activity of a hydrotreating catalyst such as Co/Mo by co-feeding carbon monoxide or its precursors. Such inventive process confirms that adding a small amount of CO to H2 in a hydrotreater for a few days leads to an increase in product sulfur due to the inhibition of CO on the hydrotreating catalyst such as Co/Mo. However, it has been unexpectedly found that after the CO was removed from the hydrogen stream, product sulfur levels decreased to values below they were before CO addition which means the activity of the hydrotreating catalyst increased after the CO treatment.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: January 13, 2015
    Assignee: Phillips 66 Company
    Inventors: Jianhua Yao, Dhananjay B. Ghonasgi, Xiaochun Xu, Larry D. Swinney
  • Publication number: 20140213836
    Abstract: A heated petroleum-derived hydrocarbon is contacted with a triglyceride feed in a thermal cracking zone to decompose and remove impurities prior to hydrotreating the mixture to fuel range hydrocarbon. This process allows the use of a variety of low cost triglyceride feeds while reducing fouling of process equipment and catalyst. The process also reduces the use of chemicals required for conventional degumming of triglyceride feeds.
    Type: Application
    Filed: March 31, 2014
    Publication date: July 31, 2014
    Applicant: PHILLIPS 66 COMPANY
    Inventors: Jianhua YAO, Edward L. SUGHRUE, II, Dhananjay B. GHONASGI, Xiaochun XU
  • Patent number: 8450542
    Abstract: An integrated process for the conversion of carbohydrate containing materials to gasoline boiling range hydrocarbons is disclosed. A carbohydrate containing material may be converted to a hydrogenated carbohydrate containing material with a bi-functional catalyst. The hydrogenated carbohydrate containing material may be reacted in the presence of another catalyst to form a reaction product containing non-aromatic and aromatic gasoline boiling range hydrocarbons.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: May 28, 2013
    Assignee: Phillips 66 Company
    Inventors: Jianhua Yao, Edward L. Sughrue, Dhananjay B. Ghonasgi, Joseph B. Cross
  • Publication number: 20120157742
    Abstract: The present disclosure relates to a process for the conversion of oxygen-containing hydrocarbons into long-chain hydrocarbons suitable for use as a fuel. These hydrocarbons may be derived from biomass, and may optionally be mixed with petroleum-derived hydrocarbons prior to conversion. The process utilizes a catalyst comprising Ni and Mo to convert a mixture comprising oxygenated hydrocarbons into product hydrocarbons containing from ten to thirty carbons. Hydro-conversion can be performed at a significantly lower temperature than is required for when utilizing a hydrotreating catalyst comprising Co and Mo (CoMo), while still effectively removing sulfur compounds (via hydrodesulfurization) to a level of 10 ppm (by weight) or less.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 21, 2012
    Applicant: CONOCOPHILLIPS COMPANY
    Inventors: Yun Bao, Dhananjay B. Ghonasgi, Joseph E. Bares, Sundararajan Uppili, Jianhua Yao, Xiaochun Xu, Edward L. Sughrue, Lisa L. Myers
  • Publication number: 20120022305
    Abstract: Methods for producing C3-C30 hydrocarbons from fatty materials, such as triglyceride compounds, are provided. Hydrocarbon compounds, particularly those boiling in the temperature range of between about 80° F. to about 1000° F., are produced by contacting a fatty material, under hydrocracking conditions, with at least one catalyst comprising a Group VIII metal and a Group VIB metal on a acidic support.
    Type: Application
    Filed: May 2, 2011
    Publication date: January 26, 2012
    Applicant: CONOCOPHILLIPS COMPANY
    Inventors: Jianhua YAO, Dhananjay B. Ghonasgi, Xiaochun Xu, Yun Bao, Edward L. Sughurue, II
  • Publication number: 20120017496
    Abstract: This invention relates to a hydroprocessing process with improved catalyst activity when hydroprocessing petroleum based feedstock or an oxygen containing feedstock. This invention also relates to a hydrotreating process with improved hydrodesulfurization (HDS) activity of a hydrotreating catalyst such as Co/Mo by co-feeding carbon monoxide or its precursors. Such inventive process confirms that adding a small amount of CO to H2 in a hydrotreater for a few days leads to an increase in product sulfur due to the inhibition of CO on the hydrotreating catalyst such as Co/Mo. However, it has been unexpectedly found that after the CO was removed from the hydrogen stream, product sulfur levels decreased to values below they were before CO addition which means the activity of the hydrotreating catalyst increased after the CO treatment.
    Type: Application
    Filed: June 1, 2011
    Publication date: January 26, 2012
    Applicant: CONOCOPHILLIPS COMPANY
    Inventors: Jianhua YAO, Dhananjay B. GHONASGI, Xiaochun XU, Larry D. SWINNEY
  • Publication number: 20120000820
    Abstract: This invention relates to a hydroprocessing process for the improvement of catalyst life. Such inventive process is carried out with intermittent or discontinuous addition of a co-feed stream when hydroprocessing petroleum based feedstock or an oxygen containing feedstock. More specifically, it has been found that intermittent or discontinuous addition of the co-feed stream such as carbon monoxide, carbon dioxide, or their precursors to the hydrogen stream can reduce the long term deactivation, extend the life and increase run length of a cobalt/molybdenum hydrotreating catalyst.
    Type: Application
    Filed: April 29, 2011
    Publication date: January 5, 2012
    Applicant: CONOCOPHILLIPS COMPANY
    Inventors: Jianhua YAO, Stephen L. PARROTT, Xiaochun XU, Dhananjay B. GHONASGI
  • Publication number: 20110237851
    Abstract: A triglyceride or a triglyceride/hydrocarbon combination can be thermally cracked to remove its impurities in situ prior to be upgraded to fuel range hydrocarbon. This process allows the use of a variety of low cost feedstock and reduce reactor fouling tendency. The process also reduces the use of chemicals required for conventional clean up processes such as degumming.
    Type: Application
    Filed: June 7, 2011
    Publication date: September 29, 2011
    Applicant: CONOCOPHILLIPS COMPANY
    Inventors: Jianhua YAO, Edward L. SUGHRUE, II, Dhananjay B. GHONASGI, Xiaochun XU
  • Patent number: 8017819
    Abstract: A triglyceride or a triglyceride/hydrocarbon combination can be heated to produce thermally treated feeds. The thermally treated feeds can then be contacted with a hydrotreating catalyst in a reaction zone.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: September 13, 2011
    Assignee: ConocoPhillips Company
    Inventors: Jianhua Yao, Edward L. Sughrue, II, Dhananjay B. Ghonasgi, Xiaochun Xu
  • Patent number: 7956227
    Abstract: Methods of oligomerizing hydrocarbons are disclosed. These methods include contacting olefins with an oligomerization catalyst in an oligomerization zone under oligomerization reaction conditions.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: June 7, 2011
    Assignee: ConocoPhillips Company
    Inventors: Bruce B. Randolph, Jason J. Gislason, M. Bruce Welch, Richard L. Anderson, Dhananjay B. Ghonasgi, Robert W. Morton, Roland Schmidt
  • Publication number: 20110126449
    Abstract: There is provided a fuel composition comprising petroleum based component and a renewable based component, wherein at least 20% of the compounds in said petroleum based component having boiling point range equal or greater than the boiling point of said renewable based component.
    Type: Application
    Filed: October 29, 2010
    Publication date: June 2, 2011
    Applicant: CONOCOPHILLIPS COMPANY
    Inventors: Xiaochun XU, Yun BAO, Jianhua Yao, Dhananjay B. Ghonasgi, Edward L. SUGHRUE, II, Lisa L. MYERS
  • Publication number: 20110077436
    Abstract: Disclosed are methods for pretreating triglyceride containing material prior to contacting with a hydrotreating catalyst to produce fuel range hydrocarbons without causing reactor fouling or catalyst plugging.
    Type: Application
    Filed: September 8, 2010
    Publication date: March 31, 2011
    Applicant: CONOCOPHILLIPS COMPANY
    Inventors: Jianhua YAO, Xiaochun XU, Dhananjay B. GHONASGI, Edward L. SUGHRUE, II, Yun BAO, Kathy A. SWALLOWS, Larry D. SWINNEY, Scott A. SCHOLTEN