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STUDY OF THE EFFECTIVE FACTORS IN GASOLINE SWEETENING PROCESS

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Author(s): Saeid Shokri | Hamid Ganji | Mahdi Ahmadi Marvast | Mansour Bazmi

Journal: Petroleum and Coal
ISSN 1337-7027

Volume: 50;
Issue: 3;
Start page: 1;
Date: 2008;
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Keywords: Sweetening | Gasoline | Technology | Sulfur removal | Process | Demercaptanization

ABSTRACT
Low molecular-weight organic sulfur compounds (H2S, RSH, COS, CS2) contained in gasoline are majorenvironmental pollutants. The demand for energy in the world is increasing, and therefore the production volumesand processing of sour, mercaptan-containing crude oil are growing in all countries of the world. Becauseenvironmental regulation, new processes for hydrocarbon feedstock treatment are more expanding.Demercaptanization is an appropriate process for sweetening of gasoline. Where, mercaptanic components ofgasoline are converted to alkyl disulfides. Simulators are useful tools to manage sweetening operation and toimprove the profitability of the process. Based on chemical kinetic and equilibrium data and according to pilotplant data, modeling of the reactors and process simulation were done using HYSYS environment.HYSYS unit operation extensibility has been used to link Fortran codes for the extractor and regenerator to theHYSYS environment. The effect of different parameters on the process performance has been studied and theprocess was optimized based on the simulation results.
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