Patents by Inventor John Roger Porter

John Roger Porter 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: 7249469
    Abstract: This invention relates to a method for separating a stream having benzene, toluene and alkyl benzene, said method comprising: feeding the stream into a first distillation column, wherein the stream comprises between about 60 mole percent to about 85 mole percent toluene, between about seven mole percent to about 20 mole percent benzene, and between about seven mole percent to about 20 mole percent alkyl benzene; separating the steam into a first mixture stream and a second mixture stream; feeding the first mixture stream and the second mixture stream into a distillation system; separating the first mixture stream and the second mixture stream into a first product stream, a system recycle stream, and a second product stream.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: July 31, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: John Roger Porter