Patents by Inventor Qikai Zhang

Qikai 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).

  • Patent number: 11691089
    Abstract: Provided are a vacuum rectification tower with a satellite-type tower kettle and a vacuum rectification method for atmospheric pressure residual oil. The vacuum rectification tower includes a satellite-surrounded vacuum tower kettle and a rectifying section; the satellite-surrounded vacuum tower kettle includes a main tower kettle and a plurality of sub-reactors arranged outside the main tower kettle in a satellite-surrounded mode; the main tower kettle is provided with a first outlet and a plurality of spray inlets, and a top portion of the main tower kettle has an opening; the sub-reactor is provided with a second outlet and a first inlet, the spray inlets are connected with the second outlets of each sub-reactor in a one-to-one correspondence, and the first outlet is connected with the first inlets.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: July 4, 2023
    Assignees: BEIJING JIESENCHUANGXIN SCIENCE & TECHNOLOGY DEVELOPMENT CO. LTD.
    Inventors: Qikai Zhang, Penghui Xu, Qun Gao
  • Publication number: 20220305400
    Abstract: Provided are a vacuum rectification tower with a satellite-type tower kettle and a vacuum rectification method for atmospheric pressure residual oil. The vacuum rectification tower includes a satellite-surrounded vacuum tower kettle and a rectifying section; the satellite-surrounded vacuum tower kettle includes a main tower kettle and a plurality of sub-reactors arranged outside the main tower kettle in a satellite-surrounded mode; the main tower kettle is provided with a first outlet and a plurality of spray inlets, and a top portion of the main tower kettle has an opening; the sub-reactor is provided with a second outlet and a first inlet, the spray inlets are connected with the second outlets of each sub-reactor in a one-to-one correspondence, and the first outlet is connected with the first inlets.
    Type: Application
    Filed: May 28, 2021
    Publication date: September 29, 2022
    Inventors: Qikai ZHANG, Penghui XU, Qun GAO
  • Patent number: 11420175
    Abstract: The present disclosure provides a differential hydrogenation reaction apparatus. The apparatus comprises a mixing vessel, a plurality of microreactors and a raw material conveying device, and the mixing vessel is provided with reaction product inlets; each microreactor is used as a hydrogenation reaction place and is provided with a liquid phase reaction raw material inlet and a reaction product outlet, each reaction product outlet is connected with the corresponding reaction product inlet, the plurality of microreactors are divided into one group or a plurality of groups which are arranged in parallel, and each group comprises at least one microreactor arranged in parallel; and the raw material conveying device is arranged on a feeding pipeline of the liquid phase reaction raw material inlet. The problems of high pressure unsafety and non-equilibrium in the hydrogenation reaction process can be effectively solved by adopting the reaction apparatus.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: August 23, 2022
    Assignees: BEIJING JIENSENCHUANGXIN SCIENCE & TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Qikai Zhang, Penghui Xu, Qun Gao
  • Publication number: 20210154638
    Abstract: The present disclosure provides a differential hydrogenation reaction apparatus. The apparatus comprises a mixing vessel, a plurality of microreactors and a raw material conveying device, and the mixing vessel is provided with reaction product inlets; each microreactor is used as a hydrogenation reaction place and is provided with a liquid phase reaction raw material inlet and a reaction product outlet, each reaction product outlet is connected with the corresponding reaction product inlet, the plurality of microreactors are divided into one group or a plurality of groups which are arranged in parallel, and each group comprises at least one microreactor arranged in parallel; and the raw material conveying device is arranged on a feeding pipeline of the liquid phase reaction raw material inlet. The problems of high pressure unsafety and non-equilibrium in the hydrogenation reaction process can be effectively solved by adopting the reaction apparatus.
    Type: Application
    Filed: November 23, 2020
    Publication date: May 27, 2021
    Inventors: Qikai ZHANG, Penghui XU, Qun GAO
  • Patent number: 10113122
    Abstract: The present disclosure provides a process that employs glycerol and a catalyst for partial transformation of heavy petroleum oils to lighter hydrocarbon liquids under mild conditions without the need of external hydrogen gas. The process uses industrially produced glycerol to upgrade heavy crudes; hydrogenates aromatics to paraffin and/or olefins without the use of external hydrogen gas; operates at mild operating conditions; and employs inexpensive catalysts. This process is completely different from the hydroconversion process where high pressurized hydrogen gas is essential. The present process requires no pressurized hydrogen gas and can significantly reduce both operating and capital costs of the traditional hydrotreating process.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: October 30, 2018
    Assignee: UNIVERSITY OF NEW BRUNSWICK
    Inventors: Ying Zheng, Qikai Zhang, Hongfei Lin
  • Publication number: 20170058211
    Abstract: The present disclosure provides a process that employs glycerol and a catalyst for partial transformation of heavy petroleum oils to lighter hydrocarbon liquids under mild conditions without the need of external hydrogen gas. The process uses industrially produced glycerol to upgrade heavy crudes; hydrogenates aromatics to paraffin and/or olefins without the use of external hydrogen gas; operates at mild operating conditions; and employs inexpensive catalysts. This process is completely different from the hydroconversion process where high pressurized hydrogen gas is essential. The present process requires no pressurized hydrogen gas and can significantly reduce both operating and capital costs of the traditional hydrotreating process.
    Type: Application
    Filed: August 31, 2016
    Publication date: March 2, 2017
    Inventors: Ying ZHENG, Qikai ZHANG, Hongfei LIN
  • Patent number: 8666423
    Abstract: A method for radio communication between a device and radio stations of a radio communications system having a plurality of radio stations involves transmitting messages from the transmitting radio station to the receiving radio station either directly, or via a routing the passes through one or more radio stations that forward said messages. The device transmits information, which related to one or more routings between a respective transmitting radio station and a receiving radio station and to radio resources that are to be used for at least one message transmission via the routing or routings, to radio stations.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: March 4, 2014
    Assignee: Nokia Siemens Networks GmbH & Co. KG
    Inventors: Yan Gao, Hui Li, Dan Yu, Qikai Zhang
  • Patent number: 7594941
    Abstract: The present invention provides a device for removing particulate matter from an air stream, and more particularly the present invention relates to a rotary gas cyclone separator with a dual-ducted filtering vortex finder for separating fine particles as small as 1 ?m from an air stream.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: September 29, 2009
    Assignee: University of New Brunswick
    Inventors: Ying Zheng, Jinyu Jiao, Qikai Zhang, Guogang Sun
  • Publication number: 20080047239
    Abstract: The present invention provides a device for removing particulate matter from an air stream, and more particularly the present invention relates to a rotary gas cyclone separator with a dual-ducted filtering vortex finder for separating fine particles as small as 1 ?m from an air stream.
    Type: Application
    Filed: August 23, 2006
    Publication date: February 28, 2008
    Inventors: Ying Zheng, Jinyu Jiao, Qikai Zhang, Guogang Sun
  • Publication number: 20070183373
    Abstract: A method for radio communication between a device and radio stations of a radio communications system having a plurality of radio stations involves transmitting messages from the transmitting radio station to the receiving radio station either directly, or via a routing the passes through one or more radio stations that forward said messages. The device transmits information, which related to one or more routings between a respective transmitting radio station and a receiving radio station and to radio resources that are to be used for at least one message transmission via the routing or routings, to radio stations.
    Type: Application
    Filed: October 20, 2004
    Publication date: August 9, 2007
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Yan Gao, Hui Li, Dan Yu, Qikai Zhang