Chemistry: fischer-tropsch processes; or purification or recover – Liquid phase fischer-tropsch reaction
Reexamination Certificate
2006-03-03
2009-11-17
Parsa, Jafar (Department: 1621)
Chemistry: fischer-tropsch processes; or purification or recover
Liquid phase fischer-tropsch reaction
C518S728000
Reexamination Certificate
active
07619011
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 μm to 120 μm 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 μm.
REFERENCES:
patent: 5348982 (1994-09-01), Herbolzheimer et al.
patent: 2005/0209350 (2005-09-01), Espinoza et al.
patent: 2007/0003450 (2007-01-01), Burdett et al.
Gamwo Isaac K.
Gidaspow Dimitri
Jung Jonghwun
Gottlieb Paul A.
Parsa Jafar
Potts James B.
Smith Bradley W.
The United States of America as represented by the United States
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