Abstract

The analysis of the applicability of the reactive separation concepts to the deephydrodesulfurization process has been performed. Through the computation of the reactive residue curve maps a basic conceptual design of a reactive distillation column was obtained. This preliminary design considers two reactive zones, each one packed with a different catalyst, a Ni−Mo based catalyst for the bottom reactive section and a Co−Mo for the top reactive section. Six different column configurations were validated through numerical simulations. The results show that the complete elimination of the organo-sulfur compounds from a HC mixture is possible with appropriate design specifications for the reactive distillation column, i.e., reflux ratio, feed location and condenser duty.

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