Patents by Inventor Shifang L. Luo

Shifang L. Luo 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).

  • Styrene Removal in Paraxylene Recovery Process
    Publication number: 20150375195
    Abstract: The invention relates to removal of styrene from hydrocarbon mixtures, and more particularly, removal of styrene from hydrocarbon mixtures containing higher than equilibrium paraxylene concentrations.
    Type: Application
    Filed: September 10, 2015
    Publication date: December 31, 2015
    Inventors: Glenn A. Heeter, John D. Ou, Allen S. Gawlik, Terrance C. Osby, Jeevan S. Abichandani, Robert G. Tinger, Indulis J. Eilands, Shifang L. Luo
  • Phenol removal in paraxylene recovery process
    Patent number: 9205401
    Abstract: The invention is directed to purification of an aromatic hydrocarbon stream including selective removal of phenol from a process stream comprising aromatic hydrocarbon mixtures, especially aromatic hydrocarbon mixtures that contain higher-than-equilibrium paraxylene, by contact with suitable adsorbents, to provide a product stream having lower concentration of phenol than said process stream.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: December 8, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John Di-Yi Ou, Glenn A. Heeter, Shifang L. Luo, Indulis J. Eilands, Jeevan S. Abichandani, Allen S. Gawlik, Mark W. Nash, Terrance C. Osby, Robert G. Tinger
  • PHENOL REMOVAL IN PARAXYLENE RECOVERY PROCESS
    Publication number: 20150314261
    Abstract: The invention is directed to purification of an aromatic hydrocarbon stream including selective removal of phenol from a process stream comprising aromatic hydrocarbon mixtures, especially aromatic hydrocarbon mixtures that contain higher-than-equilibrium paraxylene, by contact with suitable adsorbents, to provide a product stream having lower concentration of phenol than said process stream.
    Type: Application
    Filed: March 9, 2015
    Publication date: November 5, 2015
    Inventors: John Di-Yi Ou, Glenn A. Heeter, Shifang L. Luo, Indulis J. Eilands, Jeevan S. Abichandani, Allen S. Gawlik, Mark W. Nash, Terrance C. Osby, Robert G. Tinger
  • Phenol Removal in Paraxylene Recovery Process
    Publication number: 20150299070
    Abstract: The invention is directed to purification of an aromatic hydrocarbon stream including selective removal of phenol from a process stream comprising aromatic hydrocarbon mixtures, especially aromatic hydrocarbon mixtures that contain higher-than-equilibrium paraxylene, by contact with suitable adsorbents, to provide a product stream having lower concentration of phenol than said process stream.
    Type: Application
    Filed: March 9, 2015
    Publication date: October 22, 2015
    Inventors: John Di-Yi Ou, Glenn A. Heeter, Shifang L. Luo, Indulis J. Eilands, Jeevan S. Abichandani, Allen S. Gawlik, Mark W. Nash, Terrance C. Osby, Robert G. Tinger
  • Styrene removal in paraxylene recovery process
    Patent number: 9156749
    Abstract: The invention relates to removal of styrene from hydrocarbon mixtures, and more particularly, removal of styrene from hydrocarbon mixtures containing higher than equilibrium paraxylene concentrations.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: October 13, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Glenn A. Heeter, John Di-Yi Ou, Allen Scott Gawlik, Terrance C. Osby, Jeevan S. Abichandani, Robert G. Tinger, Indulis J. Eilands, Shifang L. Luo
  • Process to Produce Terephthalic Acid
    Publication number: 20150126772
    Abstract: This invention relates to the production of terephthalic acid by 1) cycloaddition of 2,5 substituted furan (such as 2,5-bis hydroxymethylfuran or 5-hydroxymethylfurfural) and ethylene, and 2) the subsequent oxidation of the dehydrated cycloaddition product to terephthalic acid. The invention relates more particularly to overall biobased pathways for making terephthalic acid from carbohydrates such as hexoses (e.g., glucose or fructose).
    Type: Application
    Filed: October 16, 2014
    Publication date: May 7, 2015
    Inventors: Guang Cao, James R. Lattner, Javier Guzman, Shifang L. Luo, Gary D. Mohr
  • Phenol removal in paraxylene recovery process
    Patent number: 9012711
    Abstract: The invention is directed to purification of an aromatic hydrocarbon stream including selective removal of phenol from a process stream comprising aromatic hydrocarbon mixtures, especially aromatic hydrocarbon mixtures that contain higher-than-equilibrium paraxylene, by contact with suitable adsorbents, to provide a product stream having lower concentration of phenol than said process stream.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: April 21, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John Di-Yi Ou, Glenn A. Heeter, Shifang L. Luo, Indulis J. Eilands, Jeevan S. Abichandani, Allen Scott Gawlik, Mark W. Nash, Terrance C. Osby, Robert G. Tinger
  • Sweet or sour service catalytic dewaxing in block mode configuration
    Patent number: 8906224
    Abstract: Sweet and sour lubricant feeds are block and continuous processed to produce lubricant basestocks. Total liquid product yields at a desired pour point are maintained for catalytic dewaxing of both sweet and sour conditions. The desired pour point is achieved for both the sweet and sour feeds by varying the catalytic dewaxing reaction temperature as a function of sulfur content entering the reactor.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: December 9, 2014
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: Krista Marie Prentice, Michel Daage, Gary Paul Schleicher, Christine Nicole Elia, Stephen J. McCarthy, Wenyih F. Lai, Shifang L. Luo, Robert Andrew Migliorini
  • Styrene Removal in Paraxylene Recovery Process
    Publication number: 20130324779
    Abstract: The invention relates to removal of styrene from hydrocarbon mixtures, and more particularly, removal of styrene from hydrocarbon mixtures containing higher than equilibrium paraxylene concentrations.
    Type: Application
    Filed: May 2, 2013
    Publication date: December 5, 2013
    Inventors: Glenn A. Heeter, John Di-Yi Ou, Allen Scott Gawlik, Terrance C. Osby, Jeevan S. Abichandani, Robert G. Tinger, Indulis J. Eilands, Shifang L. Luo
  • Phenol Removal in Paraxylene Recovery Process
    Publication number: 20130324780
    Abstract: The invention is directed to purification of an aromatic hydrocarbon stream including selective removal of phenol from a process stream comprising aromatic hydrocarbon mixtures, especially aromatic hydrocarbon mixtures that contain higher-than-equilibrium paraxylene, by contact with suitable adsorbents, to provide a product stream having lower concentration of phenol than said process stream.
    Type: Application
    Filed: May 2, 2013
    Publication date: December 5, 2013
    Inventors: John Di-Yi Ou, Glenn A. Heeter, Shifang L. Luo, Indulis J. Eilands, Jeevan S. Abichandani, Allen Scott Gawlik, Mark W. Nash, Terrance C. Osby, Robert G. Tinger
  • Sweet or Sour Service Catalytic Dewaxing in Block Mode Configuration
    Publication number: 20110174684
    Abstract: Sweet and sour lubricant feeds are block and continuous processed to produce lubricant basestocks. Total liquid product yields at a desired pour point are maintained for catalytic dewaxing of both sweet and sour conditions. The desired pour point is achieved for both the sweet and sour feeds by varying the catalytic dewaxing reaction temperature as a function of sulfur content entering the reactor.
    Type: Application
    Filed: December 22, 2010
    Publication date: July 21, 2011
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Krista Marie Prentice, Michel Daage, Gary Paul Schleicher, Christine Nicole Elia, Stephen J. McCarthy, Wenyih F. Lai, Shifang L. Luo, Robert Andrew Migliorini
  • Hydrogenation of benzene polycarboxylic acids or derivatives thereof
    Patent number: 7893295
    Abstract: A process for hydrogenating benzenepolycarboxylic acids or derivatives thereof, such as esters and/or anhydrides, by bringing one or more benzenepolycarboxylic acids or one or more derivatives thereof into contact with a hydrogen-containing gas in the presence of one or more catalytically active metal, such as platinum, palladium ruthenium or mixtures thereof, deposited on a catalyst support comprising one or more ordered mesoporous materials.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: February 22, 2011
    Assignee: Exxon Mobil Chemical Patents Inc.
    Inventors: Richard Henry Schlosberg, Jose Guadalupe Santiesteban, Stuart L. Soled, Andrzej Mariusz Malek, Joseph E. Baumgartner, Shifang L. Luo, Sabato Miseo, James Clarke Vartuli
  • Manufacture of xylenes from reformate
    Patent number: 7655823
    Abstract: A process is provided for the production of xylenes from reformate. The process is carried out by methylating the benzene, toluene, or both present in the reformate to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: February 2, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Gary D. Mohr, John Scott Buchanan, Robert A. Crane, Jihad M. Dakka, Xiaobing Feng, Larry L. Iaccino, Shifang L. Luo
  • Manufacture of xylenes using reformate
    Patent number: 7396967
    Abstract: A process is provided for the production of xylenes from reformate. The process is carried out by methylating under conditions effective for the methylation, the benzene/toluene present in the reformate outside the reforming loop, to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: July 8, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Larry L. Iaccino, Jeevan S. Abichandani, John Scott Buchanan, Robert A. Crane, Jihad M. Dakka, Xiaobing Feng, Shifang L. Luo, Gary D. Mohr
  • Manufacture of xylenes using reformate
    Patent number: 7176339
    Abstract: A process is provided for the production of xylenes from reformate. The process is carried out by methylating under conditions effective for the methylation, the benzene/toluene present in the reformate outside the reforming loop, to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: February 13, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Larry L. Iaccino, Jeevan S. Abichandani, John Scott Buchanan, Robert A. Crane, Jihad M. Dakka, Xiaobing Feng, Shifang L. Luo, Gary D. Mohr
  • Manufacture of xylenes from reformate
    Publication number: 20040030210
    Abstract: A process is provided for the production of xylenes from reformate. The process is carried out by methylating the benzene, toluene, or both present in the reformate to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
    Type: Application
    Filed: June 18, 2003
    Publication date: February 12, 2004
    Inventors: Gary D. Mohr, John Scott Buchanan, Robert A. Crane, Jihad M. Dakka, Xiaobing Feng, Larry L. Laccino, Shifang L. Luo
  • Manufacture of xylenes using reformate
    Publication number: 20040015027
    Abstract: A process is provided for the production of xylenes from reformate. The process is carried out by methylating under conditions effective for the methylation, the benzene/toluene present in the reformate outside the reforming loop, to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
    Type: Application
    Filed: June 18, 2003
    Publication date: January 22, 2004
    Inventors: Larry L. Iaccino, Jeevan S. Abichandani, John Scott Buchanan, Robert A. Crane, Jihad M. Dakka, Xiaobing Feng, Shifang L. Luo, Gary D. Mohr