Abstract
In this work, the design equations for a two-dimensional catalytic microchannel reactor for Fischer-Tropsch synthesis were studied. The main objective of the design procedure was to obtain optimal dimension of height (H) and length (L) responding to Co-Re/γ-Al2O3 catalyst operated with a space time of 0.0045 (g·cat min)·Ncm-3. The objective function was created in term of dimensionless numbers and the ratio of channel length to height. The channel length was divided into three distinct regions depending on controlled regimes comprising of kinetic controlled, external diffusion controlled and fluid flow rates controlled regimes. The dimensionless of reaction rate was maximized by varying its aspect ratio L/H to obtain the optimal channel length at a given channel height with the maximum reaction rate. From the study, the optimal length of microchannel reactor with the height of 0.5, 0.7 and 1.0mm were 17.20, 28.49 and 48.70mm respectively.
Published Version
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