Patents by Inventor Ralph Doy

Ralph Doy 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: 6656442
    Abstract: A catalytic process and apparatus therefor for the manufacture of hydrogen cyanide. In the process an oxygen rich oxidant stream and at least one oxidant-free feed steam containing methane and ammonia are separately preheated and rapidly mixed to form a detonable mixed stream at a temperature which is at least 50° C. below the autoignition temperature of the mixed stream. The mixed stream is then conveyed to a catalyst capable of catalysing the formation of hydrogen cyanide at such a velocity that detonation is avoided. The process is more energy efficient and gives rise to an effluent stream containing more hydrogen than the conventional Andrussow process.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: December 2, 2003
    Assignee: Imperial Chemical Industries PLC
    Inventors: Christopher Cowell, Ralph Doy
  • Patent number: 6491876
    Abstract: A catalytic process and apparatus therefor for the manufacture of hydrogen cyanide. In the process an oxygen rich oxidant stream and at least one oxidant-free feed stream containing methane and ammonia are separately preheated and rapidly mixed to form a detonable mixed stream at a temperature which is at least 50° C. below the autoignition temperature of the mixed stream. The mixed stream is then conveyed to a catalyst capable of catalyzing the formation of hydrogen cyanide at such a velocity that detonation is avoided. The process is more energy efficient and gives rise to an effluent stream containing more hydrogen than the conventional Andrussow process.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: December 10, 2002
    Assignee: Imperial Chemical Industries PLC
    Inventors: Christopher Cowell, Ralph Doy
  • Publication number: 20020182137
    Abstract: A catalytic process and apparatus therefor for the manufacture of hydrogen cyanide. In the process an oxygen rich oxidant stream and at least one oxidant-free feed steam containing methane and ammonia are separately preheated and rapidly mixed to form a detonable mixed stream at a temperature which is at least 50° C. below the autoignition temperature of the mixed stream. The mixed stream is then conveyed to a catalyst capable of catalysing the formation of hydrogen cyanide at such a velocity that detonation is avoided. The process is more energy efficient and gives rise to an effluent stream containing more hydrogen than the conventional Andrussow process.
    Type: Application
    Filed: May 28, 2002
    Publication date: December 5, 2002
    Applicant: Imperial Chemical Industries Plc
    Inventors: Christopher Cowell, Ralph Doy
  • Publication number: 20020039553
    Abstract: A catalytic process and apparatus therefor for the manufacture of hydrogen cyanide. In the process an oxygen rich oxidant stream and at least one oxidant-free feed stream containing methane and ammonia are separately preheated and rapidly mixed to form a detonable mixed stream at a temperature which is at least 50° C. below the autoignition temperature of the mixed stream. The mixed stream is then conveyed to a catalyst capable of catalysing the formation of hydrogen cyanide at such a velocity that detonation is avoided. The process is more energy efficient and gives rise to an effluent stream containing more hydrogen than the conventional Andrussow process.
    Type: Application
    Filed: December 21, 1998
    Publication date: April 4, 2002
    Inventors: CHRISTOPHER COWELL, RALPH DOY