Patents by Inventor Ruiyuan Tang

Ruiyuan Tang 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: 10668461
    Abstract: The present disclosure relates to the technical field of fine chemical engineering, and particularly discloses a stepwise solidus synthesis method for a micro-mesoporous calcium aluminate catalyst, comprising: mixing a calcium oxide-based powder with an alumina-based powder and an adhesion pore-enlarging agent; pelleting and molding the mixture; pyrolyzing and coking the pelleted and molded product in a rotary kiln reactor under the conditions including an outlet reaction temperature of 300° C.˜500° C. and a residence time of 0.2˜3.5 h; and subsequently carrying out a solidus reaction in an internal heating rotary kiln reactor under the conditions including an outlet reaction temperature of 900° C.˜1,500° C. and a residence time of 0.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: June 2, 2020
    Assignee: China University of Petroleum (East China)
    Inventors: Yingyun Qiao, Yuanyu Tian, Jinhong Zhang, Ruiyuan Tang, Yuanjun Che, Jun Li
  • Publication number: 20200139359
    Abstract: The present disclosure relates to the technical field of fine chemical engineering, and particularly discloses a stepwise solidus synthesis method for a micro-mesoporous calcium aluminate catalyst, comprising: mixing a calcium oxide-based powder with an alumina-based powder and an adhesion pore-enlarging agent; pelleting and molding the mixture; pyrolyzing and coking the pelleted and molded product in a rotary kiln reactor under the conditions including an outlet reaction temperature of 300° C.˜500° C. and a residence time of 0.2˜3.5 h; and subsequently carrying out a solidus reaction in an internal heating rotary kiln reactor under the conditions including an outlet reaction temperature of 900° C.˜1,500° C. and a residence time of 0.
    Type: Application
    Filed: August 29, 2019
    Publication date: May 7, 2020
    Applicant: China University of Petroleum (East China)
    Inventors: Yingyun Qiao, Yuanyu Tian, Jinhong Zhang, Ruiyuan Tang, Yuanjun Che, Jun Li
  • Publication number: 20190316046
    Abstract: The invention provides a process of alkaline catalytic cracking of inferior heavy oil with double reaction tubes in milliseconds and gaseous coupling, the process comprising: a high-efficiency atomizing nozzle sprays the preheated heavy oil into an upper portion of a downflow reaction tube, the produced oil mist mixes with a high temperature regenerated alkaline catalyst flowing downward from a dual-regulation return feeder, so as to heat, vaporize and crack the oil mist, the obtained stream containing a cracked oil and gas and an alkali catalyst to be generated flows rapidly and downward to the bottom of the downflow reaction tube to carry out a gas-solid separation; then the cracked oil and gas obtained from the gas-solid separation enters a fractionation column to be separated, the oil slurry obtained by separating the cracked oil and gas returns to mix with the heavy oil for recyclable use, while the other products separated from the cracked oil and gas are output as intermediate products; the alkali cata
    Type: Application
    Filed: April 17, 2019
    Publication date: October 17, 2019
    Applicant: China University of Petroleum (East China)
    Inventors: Yuanyu Tian, Yingyun Qiao, Jinhong Zhang, Jun Li, Yuanjun Che, Ruiyuan Tang
  • Patent number: 8138619
    Abstract: Disclosed is a non-grid-connected wind turbine generator system with high power, low cost and high efficiency. The wind turbine generator system includes a wind rotor, a generator and a tower. The wind rotor is a fixed-pitch variable-rotation-speed wind rotor, the wind rotor shaft directly drives a rotor of the generator, and the generator is a power-controlled DC generator, a double-salient brushless DC generator, or a double-stator double-salient brushless DC generator. The rotation speed of the fixed-pitch wind rotor is directly controlled by a power-controlled generator and thereby the attack angle of wind rotor blade is controlled. When wind speed is greater than rated wind speed of the system, the wind rotor is controlled into a state of blade stall so as to limit power output of the wind rotor and effectively broaden the wind speed range of wind rotor.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: March 20, 2012
    Inventors: Weidong Gu, Ruiyuan Tang, Yangguang Yan
  • Publication number: 20100066085
    Abstract: Disclosed is a non-grid-connected wind turbine generator system with high power, low cost and high efficiency. The wind turbine generator system includes a wind rotor, a generator and a tower. The wind rotor is a fixed-pitch variable-rotation-speed wind rotor, the wind rotor shaft directly drives a rotor of the generator, and the generator is a power-controlled DC generator, a double-salient brushless DC generator, or a double-stator double-salient brushless DC generator. The rotation speed of the fixed-pitch wind rotor is directly controlled by a power-controlled generator and thereby the attack angle of wind rotor blade is controlled. When wind speed is greater than rated wind speed of the system, the wind rotor is controlled into a state of blade stall so as to limit power output of the wind rotor and effectively broaden the wind speed range of wind rotor.
    Type: Application
    Filed: May 8, 2007
    Publication date: March 18, 2010
    Inventors: Weidong Gu, Ruiyuan Tang, Yangguang Yan