Patents by Inventor Junyi Mao

Junyi Mao 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).

  • Publication number: 20200040266
    Abstract: The present application relates to a process for treating gasoline, comprising the steps of: splitting a gasoline feedstock into a light gasoline fraction and a heavy gasoline fraction; optionally, subjecting the resulting light gasoline fraction to etherification to obtain an etherified oil; contacting the heavy gasoline fraction with a mixed catalyst and subjecting it to desulfurization and aromatization in the presence of hydrogen to obtain a heavy gasoline product; wherein the mixed catalyst comprises an adsorption desulfurization catalyst and an aromatization catalyst. The process of the present application is capable of reducing the sulfur and olefin content of gasoline and at the same time increasing the octane number of the gasoline while maintaining a high yield of gasoline.
    Type: Application
    Filed: October 20, 2017
    Publication date: February 6, 2020
    Inventors: Youhao XU, Junyi MAO, Xin WANG, Qing YUAN, Jingchuan YU, Hong NIE, Dadong LI
  • Patent number: 10544372
    Abstract: The present invention relates to a method for obtaining a fraction oil yield from petroleum hydrocarbons in a distillation column, wherein said distillation column comprises a fractionation stage, a vaporization section and a stripping stage from the top to the bottom of the distillation column. The method comprises preheating and sending a feedstock oil of petroleum hydrocarbons through a pressure-feeding system at a pressure of 100-1000 kPa higher than the vaporization section pressure of the distillation column, wherein said preheating is conducted in a heating furnace, wherein said heating furnace has an outlet pressure of 100-1000 kPa higher than the vaporization section absolute pressure, and an outlet temperature of 360-460° C.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: January 28, 2020
    Assignees: RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Zhanzhu Zhang, Junyi Mao, Shuandi Hou, Ya Qin, Qing Yuan, Kejia Xu, Tongwang Zhang, Shaobing Wang, Hongliang Qu, Xiaojin Tang, Zhenxing Zhu, Tao Huang
  • Publication number: 20130220889
    Abstract: A method for improving yield of petroleum hydrocarbon distillate in a distillation tower (6) comprises: preheating raw oil of petroleum hydrocarbon ready for fractionation; feeding it to a vaporization section (11) through a pressure feed system (3) under a pressure 100-1000 kPa higher than the vaporization section (11) of the distillation tower (6) for simultaneous atomizing and vaporizing; then feeding it to a fractionation section (13) for distillation-separation; and finally, discharging distillate product from the top and/or side of the tower and unvaporized heavy oil from the bottom. A distillation tower (6) for improving yield of petroleum hydrocarbon distillate comprises a vaporization section (11) and a fractionation section (13), and further comprises a pressure feed system (3) for feeding the raw oil of petroleum hydrocarbon ready for fractionation under a pressure 100-1000 kPa higher than that in the vaporization section (11) of the distillation tower (6).
    Type: Application
    Filed: April 15, 2011
    Publication date: August 29, 2013
    Applicants: RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Zhanzhu Zhang, Junyi Mao, Shuandi Hou, Ya Qin, Qing Yuan, Kejia Xu, Tongwang Zhang, Shaobing Wang, Hongliang Qu, Xiaojin Tang, Zhenxing Zhu, Tao Huang
  • Patent number: 8263007
    Abstract: The present invention relates to a slurry bed loop reactor comprising a riser and at least one downcomer (3), wherein two ends of the riser are connected to two ends of the downcomer (3) via lines (16) and (7), respectively. The riser comprises a reaction section (1) and a settling section (2) with an increased tube diameter disposed on the reaction section (1). A gas outlet (13) exists at the top of the settling section (2). Each of the downcomers (3) is divided into a filtrate section (5) and a slurry section (6) by filter medium (4), wherein the filtrate section (5) is connected to a liquid outlet (10); two ends of the slurry section (6) are respectively connected to two ends of the riser, and the filtrate region (5) may further be connected to a back purging system.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: September 11, 2012
    Assignees: China Petroleum Chemical Corporation, Research Institute of Petroleum Processing, Sinopec
    Inventors: Zhanzhu Zhang, Lifeng Hu, Xiaojin Tang, Shaobing Wang, Shuandi Hou, Junyi Mao, Hongliang Qu
  • Publication number: 20110165029
    Abstract: The present invention relates to a slurry bed loop reactor comprising a riser and at least one downcomer (3), wherein two ends of the riser are connected to two ends of the downcomer (3) via lines (16) and (7), respectively. The riser comprises a reaction section (1) and a settling section (2) with an increased tube diameter disposed on the reaction section (1). A gas outlet (13) exists at the top of the settling section (2). Each of the downcomers (3) is divided into a filtrate section (5) and a slurry section (6) by filter medium (4), wherein the filtrate section (5) is connected to a liquid outlet (10); two ends of the slurry section (6) are respectively connected to two ends of the riser, and the filtrate region (5) may further be connected to a back purging system.
    Type: Application
    Filed: March 2, 2011
    Publication date: July 7, 2011
    Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PERTROLEUM PROCESSING. SINOPEC
    Inventors: Zhanzhu ZHANG, Lifeng HU, Xiaojin TANG, Shaobing WANG, Shuandi HOU, Junyi MAO, Hongliang QU
  • Patent number: 7919536
    Abstract: The present invention relates to a slurry bed loop reactor comprising a riser and at least one downcomer (3), wherein two ends of the riser are connected to two ends of the downcomer (3) via lines (16) and (7), respectively. The riser comprises a reaction section (1) and a settling section (2) with an increased tube diameter disposed on the reaction section (1). A gas outlet (13) exists at the top of the settling section (2). Each of the downcomers (3) is divided into a filtrate section (5) and a slurry section (6) by filter medium (4), wherein the filtrate section (5) is connected to a liquid outlet (10); two ends of the slurry section (6) are respectively connected to two ends of the riser, and the filtrate region (5) may further be connected to a back purging system.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: April 5, 2011
    Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, Sinopec
    Inventors: Zhanzhu Zhang, Lifeng Hu, Xiaojin Tang, Shaobing Wang, Shuandi Hou, Junyi Mao, Hongliang Qu
  • Publication number: 20090197979
    Abstract: The present invention relates to a slurry bed loop reactor comprising a riser and at least one downcomer (3), wherein two ends of the riser are connected to two ends of the downcomer (3) via lines (16) and (7), respectively. The riser comprises a reaction section (1) and a settling section (2) with an increased tube diameter disposed on the reaction section (1). A gas outlet (13) exists at the top of the settling section (2). Each of the downcomers (3) is divided into a filtrate section (5) and a slurry section (6) by filter medium (4), wherein the filtrate section (5) is connected to a liquid outlet (10); two ends of the slurry section (6) are respectively connected to two ends of the riser, and the filtrate region (5) may further be connected to a back purging system.
    Type: Application
    Filed: May 31, 2007
    Publication date: August 6, 2009
    Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Zhanzhu Zhang, Lifeng Hu, Xiaojin Tang, Shaobing Wang, Shuandi Hou, Junyi Mao, Hongliang Qu