Abstract
The production of methane by steam-reforming of naphtha involves both rate controlling formation of carbon monoxide and hydrogen, followed by near equilibrium reactions of carbon monoxide with steam and hydrogen. In this paper a model is proposed for predicting the composition of the product gas for a single, isothermal/catalyst particle. For this system of both equilibrium and rate controlling reactions a new type of boundary condition is needed for the outer surface of the catalyst particle. The results (calculated for typical operating conditions of 400–530°C, 15–20 atm pressure, and a feed molal ratio of steam to naphtha to 6–25) The results presented for a single particle can be used with intrareactor conservation equations to predict the behavior of an integral reactor, for ex
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