A platinum catalytic reactor in an automobile is used to
Chapter 14, Problem 14.32(choose chapter or problem)
A platinum catalytic reactor in an automobile is used to convert carbon monoxide to carbon dioxide in anoxidation reaction of the form 2CO?O2l2CO2.Species transfer between the catalytic surface and theexhaust gases may be assumed to occur by diffusion in a film of thickness L?10 mm. Consider an exhaustgas that has a pressure of 1.2 bars, a temperature of 500C, and a CO mole fraction of 0.0012. If the reaction rate constant of the catalyst is k?1?0.005 m/sand the diffusion coefficient of CO in the mixture is10?4m2/s, what is the molar concentration of CO at thecatalytic surface? What is the rate of removal of COper unit area of the catalyst? What is the removal rateif k?1is adjusted to render the process diffusion limited?
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