Patents by Inventor Xinkuan Zhang

Xinkuan Zhang 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).

  • Pre-passivation process for a continuous reforming apparatus, and passivation process for a continuous reforming apparatus during the initial reaction
    Patent number: 8475650
    Abstract: The present invention relates to a pre-passivation process for a continuous reforming apparatus prior to the reaction, or a passivation process for a continuous reforming apparatus during the initial reaction, comprising loading a reforming catalyst into the continuous reforming apparatus, starting the gas circulation and raising the temperature of a reactor, injecting sulfide into the gas at a reactor temperature ranging from 100-650° C., controlling the sulfur amount in the recycle gas within a range of 0.5-100×10?6 L/L so as to passivate the apparatus.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: July 2, 2013
    Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, Sinopec
    Inventors: Jieguang Wang, Aizeng Ma, Jianqiang Ren, Changqing Ji, Xinkuan Zhang, Hengfang Chen, Yajun Zhao
  • PRE-PASSIVATION PROCESS FOR A CONTINUOUS REFORMING APPARATUS, AND PASSIVATION PROCESS FOR A CONTINUOUS REFORMING APPARATUS DURING THE INITIAL REACATION
    Publication number: 20100282645
    Abstract: The present invention relates to a pre-passivation process for a continuous reforming apparatus prior to the reaction, or a passivation process for a continuous reforming apparatus during the initial reaction, comprising loading a reforming catalyst into the continuous reforming apparatus, starting the gas circulation and raising the temperature of a reactor, injecting sulfide into the gas at a reactor temperature ranging from 100-650° C., controlling the sulfur amount in the recycle gas within a range of 0.5-100×10?6 L/L so as to passivate the apparatus. The process of the present invention may also comprise the following steps: (1) loading a reforming catalyst into the continuous reforming apparatus, starting the gas circulation and raising the temperature of a reactor, feeding the reforming feedstock into the reaction system when the temperature of the reactor is increased to 300-460° C.
    Type: Application
    Filed: October 30, 2008
    Publication date: November 11, 2010
    Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
    Inventors: Jieguang Wang, Aizeng Ma, Jianqiang Ren, Changqing Ji, Xinkuan Zhang, Hengfang Chen, Yajun Zhao