Patents by Inventor Hyung S. Woo

Hyung S. Woo 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: 20210363439
    Abstract: Method of refining whole crude oil or a wide cut crude oil, the methods comprising a combination of a hydrotreating reactor, a distillation tower, and an optional flash evaporation separator. The methods can also include light ends processing, fluid catalytic cracking, reforming, hydrocracking, and demetalization. In some methods a whole crude oil is first processed through a flash evaporation separator to create a wide cut crude oil and in other methods, the flash evaporation separator is not used as the whole crude oil is first treated in a hydrotreater.
    Type: Application
    Filed: May 20, 2021
    Publication date: November 25, 2021
    Inventors: Xiaochun Xu, Xinrui Yu, Shifang Luo, Randolph J. Smiley, Hyung S. Woo
  • Patent number: 9174206
    Abstract: Bulk catalysts that include a Group VI metal, a Group VIII metal, and at least 10-60% of an organic compound based component are formed. The bulk catalysts have increased stability through the use of a stabilizer in the organic compound based component, the use of an improved gas phase sulfidation, or a combination thereof. The bulk catalysts are suitable for hydroprocessing of hydrocarbon feeds.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: November 3, 2015
    Assignee: EXXONMOBILE RESEARCH AND ENGINEERING COMPANY
    Inventors: Jean W. Beeckman, Stephen J. McCarthy, Chuansheng Bai, William G. Borghard, Sanket K. Desai, Hyung S. Woo
  • Publication number: 20100093522
    Abstract: Bulk catalysts that include a Group VI metal, a Group VIII metal, and at least 10-60% of an organic compound based component are formed. The bulk catalysts have increased stability through the use of a stabilizer in the organic compound based component, the use of an improved gas phase sulfidation, or a combination thereof. The bulk catalysts are suitable for hydroprocessing of hydrocarbon feeds.
    Type: Application
    Filed: October 5, 2009
    Publication date: April 15, 2010
    Inventors: Jean W. Beeckman, Stephen J. McCarthy, Chuansheng Bai, William G. Borghard, Sanket K. Desai, Hyung S. Woo
  • Patent number: 7232934
    Abstract: A reduced or partially reduced nickel-molybdenum catalyst prepared by a process having the steps of 1) reacting nickel carbonate and molybdenum oxide precursors to form nickel molybdate and 2) treating the nickel molybdate under reducing conditions to form the reduced or partially reduced nickel-molybdenum catalyst. There is also a process for making the catalyst. There is also a process for using the catalyst in the hydrogenation of an oxo aldehyde, thereby forming an oxo alcohol of high selectivity. There is also a process for forming an oxo alcohol from the hydroformylation/hydrogenation of an olefinic feedstream. There is also a process for forming an oxo alcohol by contacting formates, dimers, trimers, and organic acids with hydrogen in the presence of a reduced or partially reduced nickel-molybdenum catalyst. The foregoing processes are also useful with a catalyst having the general formula YxZ wherein Y is nickel and/or cobalt and Z is molybdenum and/or tungsten; and wherein x ranges between about 0.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: June 19, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Ramzi Yanni Saleh, Stuart L. Soled, Sabato Miseo, Hyung S. Woo