Patents by Inventor Gregory J. Schrad

Gregory J. Schrad 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
  • Patent number: 10722861
    Abstract: Reactor systems for use with ionic liquid catalyst. The reactor systems include one or more stages, which include a reactor and a heat exchanger, and a separation zone. The reactor and the heat exchanger may have a vertical orientation. Additionally, a separation vessel may also include a vertical orientation. The heat exchanger may allow for linear flow of process fluid to control residence time.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: July 28, 2020
    Assignee: UOP LLC
    Inventors: Eric Leeton, Kurt Detrick, Christian D. Freet, David S. Lafyatis, Robert Mehlberg, Sean G. Mueller, Gregory J. Schrad, Zhanping Xu
  • Patent number: 10702798
    Abstract: A process for treating an ionic liquid containing waste stream is described. If there is a liquid waste stream, the liquid waste stream is introduced into a liquid treatment zone. The ionic liquid in the liquid waste stream is neutralized. The concentration of the ionic liquid in the liquid waste stream is determined, and the allowed concentration of the ionic liquid in the liquid waste stream is determined. The concentration of the ionic liquid in the neutralized liquid waste stream is reduced to the allowed concentration, and the liquid waste stream having the allowed concentration is released. If there is a vapor waste stream, the vapor waste stream is introduced into a vapor treatment zone. The vapor waste stream is treated to form a treated vapor waste stream, and the treated vapor waste stream is released to a plant vapor treatment zone.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: July 7, 2020
    Assignee: UOP LLC
    Inventors: Eric Leeton, Gregory J. Schrad, David S. Lafyatis, Matthew Lippmann, Douglas A. Nafis
  • Publication number: 20180264431
    Abstract: Reactor systems for use with ionic liquid catalyst. The reactor systems include one or more stages, which include a reactor and a heat exchanger, and a separation zone. The reactor and the heat exchanger may have a vertical orientation. Additionally, a separation vessel may also include a vertical orientation. The heat exchanger may allow for linear flow of process fluid to control residence time.
    Type: Application
    Filed: May 23, 2018
    Publication date: September 20, 2018
    Inventors: Eric Leeton, Kurt Detrick, Christian D. Freet, David S. Lafyatis, Robert Mehlberg, Sean G. Mueller, Gregory J. Schrad, 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
  • Publication number: 20170113162
    Abstract: A process for treating an ionic liquid containing waste stream is described. If there is a liquid waste stream, the liquid waste stream is introduced into a liquid treatment zone. The ionic liquid in the liquid waste stream is neutralized. The concentration of the ionic liquid in the liquid waste stream is determined, and the allowed concentration of the ionic liquid in the liquid waste stream is determined. The concentration of the ionic liquid in the neutralized liquid waste stream is reduced to the allowed concentration, and the liquid waste stream having the allowed concentration is released. If there is a vapor waste stream, the vapor waste stream is introduced into a vapor treatment zone. The vapor waste stream is treated to form a treated vapor waste stream, and the treated vapor waste stream is released to a plant vapor treatment zone.
    Type: Application
    Filed: October 23, 2015
    Publication date: April 27, 2017
    Inventors: Eric Leeton, Gregory J. Schrad, David S. Lafyatis, Matthew Lippmann, Douglas A. Nafis