Patents by Inventor Peicheng Wu

Peicheng Wu 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).

  • Selective hydrogenation process for removing C10-C16 diolefins
    Patent number: 6627778
    Abstract: The present invention provides an improved selective hydrogenation process for removing C10-C16 diolefins in the product from dehydrogenation of C10-C16 paraffins to mono-olefins, which process includes bringing the mixture stream of paraffins and olefins containing C10-C16 mono-olefins and C10-C16 diolefins into contact with a specific hydrogenation catalyst in a plurality of hydrogenation reactors connected in series under the reaction conditions for hydrogenation. Hydrogen is injected into each reactor respectively. To convert the diolefins in the mixture stream of paraffins and olefins into mono-olefins, &ggr;-alumina having a specific surface area of 50-300 m2/g and a pore volume of 0.2-2.0 cm3/g is used as the supporter of the hydrogenation catalyst, palladium is supported on the supporter as the main catalyst element and an element selected from silver, gold, tin, lead or potassium is supported on the supporter as the promoter.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: September 30, 2003
    Assignees: China Petrochemical Corporation, Sinopec, Jinling Petrochemical Corporation
    Inventors: Yi Xu, Peicheng Wu, Yu Wang, Dong Liu, Zhengguo Ling, Xiaolei Huang
  • Selective hydrogenation process for removing C10 -C16 diolefins
    Publication number: 20020004621
    Abstract: The present invention provides an improved selective hydrogenation process for removing C10-C16 diolefins in the product from dehydrogenation of C10-C16 paraffins to mono-olefins, which process includes bringing the mixture stream of paraffins and olefins containing C10-C16 mono-olefins and C10-C16 diolefins into contact with a specific hydrogenation catalyst in a plurality of hydrogenation reactors connected in series under the reaction conditions for hydrogenation. Hydrogen is injected into each reactor respectively. To convert the diolefins in the mixture stream of paraffins and olefins into mono-olefins, &ggr;-alumina having a specific surface area of 50-300 m2/g and a pore volume of 0.2-2.0 cm3/g is used as the supporter of the hydrogenation catalyst, palladium is supported on the supporter as the main catalyst element and an element selected from silver, gold, tin, lead or potassium is supported on the supporter as the promoter.
    Type: Application
    Filed: April 19, 2001
    Publication date: January 10, 2002
    Inventors: Yi Xu, Peicheng Wu, Yu Wang, Dong Liu, Zhengguo Ling, Xiaolei Huang
  • Dehydrogenating catalyst for saturate hydrocarbons
    Patent number: 5358920
    Abstract: A dehydrogenating catalyst for saturated hydrocarbons comprising platinum, tin, sodium and .tau.-alumina. The support of the catalyst is a large pore diameter .tau.-Al.sub.2 O.sub.3 with dual pore diameter distribution. At least 40% of the total pore volume is contributed by pores with pore diameter in the range of 1000-10000 .ANG.. Platinum, tin, and sodium are impregnated onto support by co-impregnation method, followed by drying, calcinating, and steam-treating, as well as reducing by hydrogen, to prepare a long life dehydrogenating catalyst.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: October 25, 1994
    Assignees: China Petro-Chemical Corporation, Jing Ling Petrochemical Company, Sinopec
    Inventors: Yongfu Ma, Peicheng Wu, Yong Sun, Sangjian Zhu, Yuexin Huang, Weiying Yang, Kaiwen Yao, Youreng Zou