Patents by Inventor Isaac K. Gamwo

Isaac K. Gamwo 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).

  • Design of slurry bubble column reactors: novel technique for optimum catalyst size selection contractual origin of the invention
    Patent number: 7619011
    Abstract: A method for determining optimum catalyst particle size for a gas-solid, liquid-solid, or gas-liquid-solid fluidized bed reactor such as a slurry bubble column reactor (SBCR) for converting synthesis gas into liquid fuels considers the complete granular temperature balance based on the kinetic theory of granular flow, the effect of a volumetric mass transfer coefficient between the liquid and the gas, and the water gas shift reaction. The granular temperature of the catalyst particles representing the kinetic energy of the catalyst particles is measured and the volumetric mass transfer coefficient between the gas and liquid phases is calculated using the granular temperature. Catalyst particle size is varied from 20 ?m to 120 ?m and a maximum mass transfer coefficient corresponding to optimum liquid hydrocarbon fuel production is determined. Optimum catalyst particle size for maximum methanol production in a SBCR was determined to be in the range of 60-70 ?m.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: November 17, 2009
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Isaac K. Gamwo, Dimitri Gidaspow, Jonghwun Jung