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Kinetic Study for Oxidation of Existing Mercaptans in Kerosene Using Impregnated Activated Carbon with MEROX Catalyst in Alkaline Solution

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Author(s): Amir Farshi | Zahra Rabiei

Journal: Petroleum and Coal
ISSN 1337-7027

Volume: 47;
Issue: 1;
Start page: 49;
Date: 2005;
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Keywords: MEROX | mercaptans | activated carbon | kinetics | oxidation | kerosene

ABSTRACT
MEROX process is used for oxidation of mercaptans to disulfide from oil cuts using air in the presence of alkaline solution and MEROX catalyst. In this paper, the kinetic of conversion existing mercaptans in kerosene is studied for better understanding of MEROX process. Impregnated activated carbon with powder of MEROX catalyst was analyzed in laboratory scale. The results indicate that in laboratory scale, because of pore diffusion resistance, the impregnation efficiency is low. Also, optimum conditions for mercaptan extraction by using of soda solution obtained. Meanwhile the kinetic of oxidation reaction is considered in the presence of MEROX catalyst and activated carbon and also, impregnated activated carbon with MEROX catalyst.The results, indicate for mercaptan decreasing, in similar conditions the efficiency of Impregnated activated carbon with MEROX is better than other catalysts.Also, the kinetic model related to catalytic reaction for mercaptan conversion to disulfide in the presence of impregnated activated carbon with MEROX catalyst, is represented.
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