Catalytic Conversion of Chloromethane to Methane and Propane on SiO2/Al2O3: Kinetics of Deactivation Caused by Coking
Leopoldo O. A. Rojas, João F. Sousa, Juan A. C. Ruiz, Márcio B. D. Bezerra
Chemical Science International Journal · pp. 1–14 · Published 22 Nov 2016
10.9734/CSJI/2016/29616Abstract
Chloromethane was catalytically converted into methane and propane in a fixed-bed reactor with control of pressure and flow rates. The deactivation by coking was studied in a microadsorber equipped with gravimetric monitoring. In this study, two models are proposed: the first one proposes that product production competes with coke formation; and the other one proposes that coke formation competes with product desorption. Kinetic and thermodynamic parameters were estimated. Results showed that chloromethane is activated by silica-alumina but the products are usually high molecular weight hydrocarbons, which are broken down by acid sites to produce compounds like methane and propane.
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