Patents by Inventor Xiaochun Xu

Xiaochun Xu 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: 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: 8584100
    Abstract: Method and system for testing software code comprising determining code elements in software code, determining changed code elements in the software code, determining dependencies between code elements, determine dependency changes between code elements based on the determined changed code elements, determining an impact factor for the respective changed code elements based on the determined dependency changes, determine a test relevancy ranking for code tests based on the determined impact factor, selecting tests for the software code based on said test relevancy ranking, and performing the selected tests on the software code.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: November 12, 2013
    Assignee: SAP AG
    Inventors: Xiaochun Xu, Yangning Peng
  • Publication number: 20130172650
    Abstract: Methods and systems relate to upgrading light olefins, such as ethylene, propylene and butylenes, diluted in a gas mixture, such as refinery fuel gas. The upgrading yields products in a gasoline, distillate, lube oil or wax range without requiring purification or compression of the gas mixture prior to feeding the gas mixture to a reactor. In operation, the mixture contacts a solid oligomerization catalyst, such as silica supported chromium, within the reactor. This contact occurs at a first temperature suitable to produce oligomers that are formed of the olefins and adsorb on the catalyst in liquid or solid phases. Next, heating the catalyst to a second temperature higher the first temperature desorbs the oligomers that are recovered and separated into the products.
    Type: Application
    Filed: December 18, 2012
    Publication date: July 4, 2013
    Applicant: PHILLIPS 66 COMPANY
    Inventors: Shetian Liu, Jianhua Yao, Xiaochun Xu, Patrick W. Blosser, Joe D. Allison, Edward L. Sughrue, II
  • 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: 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: 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: 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
  • Publication number: 20110145788
    Abstract: Method and system for testing software code comprising determining code elements in software code, determining changed code elements in the software code, determining dependencies between code elements, determine dependency changes between code elements based on the determined changed code elements, determining an impact factor for the respective changed code elements based on the determined dependency changes, determine a test relevancy ranking for code tests based on the determined impact factor, selecting tests for the software code based on said test relevancy ranking, and performing the selected tests on the software code.
    Type: Application
    Filed: December 10, 2009
    Publication date: June 16, 2011
    Applicant: SAP AG
    Inventors: Xiaochun Xu, Yangning Peng
  • Patent number: 7955401
    Abstract: Methods for producing C10-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 with at least one catalyst comprising cobalt and molybdenum on a zeolite support under hydrotreating conditions. Additional hydrotreating catalysts may also be used to further improve the properties of the hydrocarbon product.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: June 7, 2011
    Assignee: ConocoPhillips Company
    Inventors: Dhananjay R. Ghonasgi, Edward L. Sughrue, II, Jianhua Yao, Xiaochun Xu
  • 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
  • Publication number: 20110047866
    Abstract: Disclosed is a process for removing solids, metals, phosphorus compounds and other impurities from low quality triglyceride containing feedstock. The final treated triglyceride containing feedstock may be converted to fuel range hydrocarbons via hydrotreating process.
    Type: Application
    Filed: July 20, 2010
    Publication date: March 3, 2011
    Applicant: CONOCOPHILLIPS COMPANY
    Inventors: Yun BAO, Xiaochun XU, Jianhua YAO, Lisa L. MYERS, Dhananjay B. GHONASGI, Edward L. SUGHRUE, Scott A. SCHOLTEN, Kathy A. SWALLOWS, Larry D. SWINNEY
  • Publication number: 20110029403
    Abstract: In various exemplary embodiments, a system and associated method to provide targeted merchandising is disclosed. Initially, an identity of a user (e.g., a returning buyer) is determined. A transaction history associated with the identity is then accessed. The transaction history is used to determine one or more related items from at least one familiar merchant. The at least one familiar merchant is a merchant having a previous relationship with the user. Representations of the one or more related items are then displayed to the user in a prominent manner.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 3, 2011
    Applicant: eBay Inc.
    Inventor: Xiaochun Xu
  • Patent number: 7626063
    Abstract: Methods for producing C10-C30 hydrocarbons from fatty compounds are provided in which at least a portion of the hydrogen required to accomplish the conversion is generated from by-products of the conversion process. Light hydrocarbons, especially propane, produced during the conversion of triglyceride compounds are used to generate hydrogen which is used in the conversion process thereby reducing the need for outside hydrogen sources.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: December 1, 2009
    Assignee: ConocoPhillips Company
    Inventors: Dhananjay B. Ghonasgi, Edward L. Sughrue, II, Jianhua Yao, Xiaochun Xu
  • Publication number: 20090266743
    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: Application
    Filed: April 25, 2008
    Publication date: October 29, 2009
    Inventors: Jianhua Yao, Edward L. Sughrue, II, Dhananjay B. Ghonasgi, Xiaochun Xu
  • Publication number: 20090019763
    Abstract: Methods for producing C10-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 with at least one catalyst comprising cobalt and molybdenum on a zeolite support under hydrotreating conditions. Additional hydrotreating catalysts may also be used to further improve the properties of the hydrocarbon product.
    Type: Application
    Filed: July 16, 2007
    Publication date: January 22, 2009
    Applicant: CONOCOPHILLIPS COMPANY
    Inventors: Dhananjay B. Ghonasgi, Edward L. Sughrue, II, Jianhua Yao, Xiaochun Xu
  • Publication number: 20080281134
    Abstract: Methods for producing C10-C30 hydrocarbons from fatty compounds are provided in which at least a portion of the hydrogen required to accomplish the conversion is generated from by-products of the conversion process. Light hydrocarbons, especially propane, produced during the conversion of triglyceride compounds are used to generate hydrogen which is used in the conversion process thereby reducing the need for outside hydrogen sources.
    Type: Application
    Filed: May 11, 2007
    Publication date: November 13, 2008
    Applicant: CONOCOPHILLIPS COMPANY
    Inventors: Dhananjay B. Ghonasgi, Edward L. Sughrue, II, Jianhua Yao, Xiaochun Xu
  • Patent number: 7248878
    Abstract: A controlling radio network controller (C-RNC) for use in radio resource management (RRM) functions includes a radio resource management function for managing radio resources. The RRM function uses data stored in a common database, including cell data and wireless transmit/receive unit (WTRU) data. The cell data includes resource assignment information for a cell, and the WTRU data includes WTRU capability and WTRU radio link information.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: July 24, 2007
    Assignee: InterDigital Technology Corporation
    Inventors: Guang Lu, Renuka Racha, Mehrdad Haghighi, Xiaochun Xu Fisher