Patents by Inventor Graeme Douglas Campbell

Graeme Douglas Campbell 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: 9492809
    Abstract: A carbon oxides conversion process includes reacting a carbon oxide containing process gas containing hydrogen and/or steam and containing at least one of hydrogen and carbon monoxide in the presence of a catalyst including shaped units formed from a reduced and passivated catalyst powder, the powder including copper in the range 10-80% by weight, zinc oxide in the range 20-90% by weight, alumina in the range 5-60% by weight and optionally one or more oxidic promoter compounds selected from compounds of Mg, Cr, Mn, V, Ti, Zr, Ta, Mo, W, Si and rare earths in the range 0.01-10% by weight, wherein said shaped units have a reduced to as-made mean horizontal crush strength ratio of ?0.5:1 and a copper surface area above 60 m2/g Cu.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: November 15, 2016
    Assignee: Johnson Matthey PLC
    Inventors: Colin William Park, Brian Peter Williams, Graeme Douglas Campbell, David Allan Buckworth
  • Publication number: 20160199818
    Abstract: A process for manufacturing a catalyst composition comprises the steps of (i) precipitating one or more metal compounds from solution using an alkaline precipitant, preferably comprising an alkaline carbonate, optionally in the presence of a thermostabilising material, ii) ageing the precipitated composition, and (iii) recovering and drying the aged composition, wherein the ageing step is performed using a pulse-flow reactor.
    Type: Application
    Filed: November 18, 2015
    Publication date: July 14, 2016
    Applicant: Johnson Matthey PLC
    Inventors: Graeme Douglas Campbell, Gordon James Kelly, Fiona Mary Campbell, Brian Peter Williams
  • Patent number: 9221034
    Abstract: A process for manufacturing a catalyst composition comprises the steps of (i) precipitating one or more metal compounds from solution using an alkaline precipitant, preferably comprising an alkaline carbonate, optionally in the presence of a thermostabilizing material, ii) ageing the precipitated composition, and (iii) recovering and drying the aged composition, wherein the ageing step is performed using a pulse-flow reactor.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: December 29, 2015
    Assignee: Johnson Matthey PLC
    Inventors: Graeme Douglas Campbell, Gordon James Kelly, Fiona Mary Campbell, Brian Peter Williams
  • Patent number: 8815191
    Abstract: A process for manufacturing a catalyst composition includes the steps of (i) combining one or more soluble metal compounds with a solution of an alkaline metal carbonate precipitant to form a precipitate of insoluble metal carbonates, (ii) processing the insoluble metal carbonates into a catalyst or catalyst precursor with the evolution of carbon dioxide, (iii) recovering at least a portion of the evolved carbon dioxide, and (iv) reacting the recovered carbon dioxide with a suitable alkaline metal compound in an absorber column to generate an alkaline metal carbonate, wherein at least a portion of the generated alkaline metal carbonate is used as a precipitant in step (i).
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: August 26, 2014
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Graeme Douglas Campbell, James Beaumond Hunter
  • Publication number: 20120202681
    Abstract: A carbon oxides conversion process includes reacting a carbon oxide containing process gas containing hydrogen and/or steam and containing at least one of hydrogen and carbon monoxide in the presence of a catalyst including shaped units formed from a reduced and passivated catalyst powder, the powder including copper in the range 10-80% by weight, zinc oxide in the range 20-90% by weight, alumina in the range 5-60% by weight and optionally one or more oxidic promoter compounds selected from compounds of Mg, Cr, Mn, V, Ti, Zr, Ta, Mo, W, Si and rare earths in the range 0.01-10% by weight, wherein said shaped units have a reduced to as-made mean horizontal crush strength ratio of ?0.5:1 and a copper surface area above 60 m2/g Cu.
    Type: Application
    Filed: May 24, 2010
    Publication date: August 9, 2012
    Applicant: JOHNSON MATTHEY PLC
    Inventors: Colin William Park, Brian Peter Williams, Graeme Douglas Campbell, David Allan Buckworth
  • Publication number: 20110104039
    Abstract: A process for manufacturing a catalyst composition includes the steps of (i) combining one or more soluble metal compounds with a solution of an alkaline metal carbonate precipitant to form a precipitate of insoluble metal carbonates, (ii) processing the insoluble metal carbonates into a catalyst or catalyst precursor with the evolution of carbon dioxide, (iii) recovering at least a portion of the evolved carbon dioxide, and (iv) reacting the recovered carbon dioxide with a suitable alkaline metal compound in an absorber column to generate an alkaline metal carbonate, wherein at least a portion of the generated alkaline metal carbonate is used as a precipitant in step (i).
    Type: Application
    Filed: March 26, 2009
    Publication date: May 5, 2011
    Applicant: JOHNSON MATTHEY PLC
    Inventors: Graeme Douglas Campbell, James Beaumond Hunter
  • Publication number: 20110034327
    Abstract: A process for manufacturing a catalyst composition comprises the steps of (i) precipitating one or more metal compounds from solution using an alkaline precipitant, preferably comprising an alkaline carbonate, optionally in the presence of a thermostabilising material, ii) ageing the precipitated composition, and (iii) recovering and drying the aged composition, wherein the ageing step is performed using a pulse-flow reactor.
    Type: Application
    Filed: October 18, 2007
    Publication date: February 10, 2011
    Applicant: Johnson Matthey PLC
    Inventors: Graeme Douglas Campbell, Gordon James Kelly, Fiona Mary Campbell, Brian Peter Williams