Patents by Inventor Hung-Chung Shen

Hung-Chung Shen 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: 7276152
    Abstract: A robust, non-aqueous, and oil-soluble organic peroxide oxidant is employed for oxidative desulfurization and denitrogenation of hydrocarbon feedstocks including petroleum fuels. Even at low concentrations, the non-aqueous organic peroxide oxidant is extremely active and fast in oxidizing the sulfur and nitrogen compounds in the hydrocarbon feedstocks without catalyst. Consequently, the oxidation reactions that employ the non-aqueous organic peroxide oxidant take place at substantially lower temperatures and shorter residence times than reactions in other oxidative desulfurization and denitrogenation processes. As a result, a higher percentage of the valuable non-sulfur and non-nitrogen containing components in the hydrocarbon feedstock are more likely preserved with the inventive process. Desulfurization and denitrogenation occur in a single phase non-aqueous environment so that no phase transfer of the oxidant is required.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: October 2, 2007
    Assignee: CPC Corporation, Taiwan
    Inventors: Tzong-Bin Lin, Hsun-Yi Huang, Jyh-Haur Hwang, Hung-Chung Shen, Karl Tze-Tang Chuang
  • Publication number: 20070102323
    Abstract: An improved oxidative process that employ a robust, non-aqueous, and oil-soluble organic peroxide oxidant for effective desulfurization and denitrogenation of hydrocarbons including petroleum fuels, hydrotreated vacuum gas oil (VGO), non-hydrotreated VGO, petroleum crude oil, synthetic crude oil from oil sand, and residual oil. Even at low concentrations and without the assistance of catalysts, the non-aqueous organic peroxide oxidant is extremely active and fast in oxidizing the sulfur and nitrogen compounds in the hydrocarbon feedstocks. Furthermore, the process generates a valuable organic acid by-product that is also used internally as the extractive solvent for effective removal of the oxidized sulfur and nitrogen from the hydrocarbons without the need of a final adsorption step. Novel process steps are also disclosed to substantially prevent yield loss in the oxidative process.
    Type: Application
    Filed: December 21, 2006
    Publication date: May 10, 2007
    Inventors: Fu-Ming Lee, Tzong-Bin Lin, Hsun-Yi Huang, Jyh-Haur Hwang, Hung-Chung Shen, Karl Chuang
  • Publication number: 20070095646
    Abstract: The invention disclosed relates to catalytic distillation column internals providing improved liquid and catalyst contacting for simultaneous catalytic reaction and separation of the reaction mixture. The invention provides an improved catalytic distillation system providing optimum balance of catalytic reaction and mass transfer steps, wherein distribution, mixing and application of liquid to the reaction zone and separation zones is better controlled and more uniformly applied. At least one catalyst bed is situated in at least one receiving pan of a distillation tray so that said tray performs the functions of both of the reaction section and the separation section of the catalytic distillation column simultaneously within a stage.
    Type: Application
    Filed: November 2, 2005
    Publication date: May 3, 2007
    Inventors: Kuang-Yeu Wu, Pai-Yu Chiang, Tzong-Bin Lin, Hung-Chung Shen, Karl Chuang
  • Publication number: 20070000809
    Abstract: A highly effective liquid-liquid extraction process to remove nitrogen compounds and especially basic nitrogen compounds from aromatic light petroleum oils with excellent recovery employs de-ionized water, which can be acidified, as the extractive solvent. The product is an aromatic hydrocarbon with ultra-low amounts of nitrogen poisons that can deactivate acidic catalysts. The extracted oils are suitable feedstock for the subsequent catalytic processes that are promoted with the high performance solid catalysts, which are extremely sensitive to nitrogen poison.
    Type: Application
    Filed: June 30, 2005
    Publication date: January 4, 2007
    Inventors: Tzong-Bin Lin, Hung-Chung Shen, Kuang-Yeu Wu
  • Publication number: 20060108263
    Abstract: A robust, non-aqueous, and oil-soluble organic peroxide oxidant is employed for oxidative desulfurization and denitrogenation of hydrocarbon feedstocks including petroleum fuels. Even at low concentrations, the non-aqueous organic peroxide oxidant is extremely active and fast in oxidizing the sulfur and nitrogen compounds in the hydrocarbon feedstocks without catalyst. Consequently, the oxidation reactions that employ the non-aqueous organic peroxide oxidant take place at substantially lower temperatures and shorter residence times than reactions in other oxidative desulfurization and denitrogenation processes. As a result, a higher percentage of the valuable non-sulfur and non-nitrogen containing components in the hydrocarbon feedstock are more likely preserved with the inventive process. Desulfurization and denitrogenation occur in a single phase non-aqueous environment so that no phase transfer of the oxidant is required.
    Type: Application
    Filed: November 23, 2004
    Publication date: May 25, 2006
    Applicant: Chinese Petroleum Corporation
    Inventors: Tzong-Bin Lin, Hsun-Yi Huang, Jyh-Haur Hwang, Hung-Chung Shen, Karl Chuang