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Heat transfer and kinetics in a catalyst bed of rectangular cross section: Air oxidation of nitric oxide with silica gel
Author(s) -
Jaffer J. H.,
Bliss Harding
Publication year - 1960
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690060332
Subject(s) - isothermal process , catalysis , kinetics , heat transfer , chemistry , reaction rate , slab , silica gel , chemical kinetics , thermodynamics , oxide , chemical reaction engineering , chemical reactor , chemical engineering , materials science , chromatography , organic chemistry , physics , quantum mechanics , geophysics , engineering , geology
The results of an investigation of heat transfer and reaction kinetics in a fixed‐bed catalytic reactor of slab geometry are described. The particular reaction studied is the air oxidation of nitric oxide with silica gel. Conversions and catalyst‐bed temperatures were observed in the experimental, nonisothermal slab reactor, but only a sample of these data are reported and analyzed here. A mathematical analysis of the processes occurring in a slab reactor has been developed which leads to a design method for such reactors that permits prediction of catalyst‐bed temperatures and conversions from a knowledge of specific reaction rates and the physical properties of the system. The design method involves a step‐by‐step procedure but requires a small number of steps. To evaluate the accuracy of the design method and to illustrate its use, the specific reaction‐rate data together with published thermal‐conductivity data have been used with the method to predict the results of a run on the experimental nonisothermal reactor. Good agreement between calculated and observed temperatures and conversions was obtained. Specific reaction rates, derived from integral conversions in an experimental, isothermal reactor, are reported.