Patents by Inventor James G. Hagen

James G. Hagen 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: 10809022
    Abstract: Processes for controlling the rate and temperature of cooling fluid through a heat exchange zone in, for example, an alkylation reactor using an ionic liquid catalyst. A cooling fluid system may be used to provide the cooling fluid which includes a chiller and a reservoir. The cooling fluid may pass from the reservoir through the heat exchange zone. A bypass line may be used to pass a portion of the cooling fluid around the heat exchange zone. The amount of cooling fluid may be adjusted, with a valve, based upon the temperature of the cooled process fluid flowing out of the heat exchange zone. Some of the cooling fluid from the chiller may be circulated back to the chiller in a chiller loop.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: October 20, 2020
    Assignee: UOP LLC
    Inventors: Gregory J. Schrad, James G. Hagen, Sean G. Mueller, Trung Pham, Zhanping Xu
  • Publication number: 20180128560
    Abstract: Processes for controlling the rate and temperature of cooling fluid through a heat exchange zone in, for example, an alkylation reactor using an ionic liquid catalyst. A cooling fluid system may be used to provide the cooling fluid which includes a chiller and a reservoir. The cooling fluid may pass from the reservoir through the heat exchange zone. A bypass line may be used to pass a portion of the cooling fluid around the heat exchange zone. The amount of cooling fluid may be adjusted, with a valve, based upon the temperature of the cooled process fluid flowing out of the heat exchange zone. Some of the cooling fluid from the chiller may be circulated back to the chiller in a chiller loop.
    Type: Application
    Filed: December 15, 2017
    Publication date: May 10, 2018
    Inventors: Gregory J. Schrad, James G. Hagen, Sean G. Mueller, Trung Pham, Zhanping Xu
  • Patent number: 5360534
    Abstract: The benzene content in a gasoline pool is reduced by an isomerization process that splits a benzene-containing C.sub.4 -C.sub.6 feedstream between at least two reaction zones and combines the feed fractions with effluent streams. The splitting of the feed stream distributes the heat of reaction over two reactors and lowers the relative exotherm. The lower exotherm for benzene saturation permits higher benzene feeds to be processed without reducing product quality.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: November 1, 1994
    Assignee: UOP
    Inventors: Lynn H. Rice, James G. Hagen, Brian H. Johnson