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Removal of Benzothiophene Using Butylmethylimidazolium Tetrachloroferrate [BMIM][FeCl4] Ionic Liquid from Dodecane Model Oil

Karimah Aminudin, Karimah (2009) Removal of Benzothiophene Using Butylmethylimidazolium Tetrachloroferrate [BMIM][FeCl4] Ionic Liquid from Dodecane Model Oil. Universiti Teknologi Petronas, Seri Iskandar,Tronoh,Perak. (Unpublished)

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Abstract

Sulfur compound is the key substance that needs to be separated from model oil. The conventional sulfur compound removing method is catalytic hydrodesulfurization (HDS), which requires both a high temperature and high pressure of hydrogen gas to produce oil having low levels of sulfur compounds. Therefore, the efficiency of HDS is limited in treating benzothiophene. This project is to develop an advanced desulfurization process that can be carried out under mild conditions; atmospheric pressure and room temperature. Extractive desulfurization using [BMIM][FeCl4] ionic liquid was investigated to remove benzothiophene from dodecane model oil. The objective is to synthesize [BMIM][FeCl4] ionic liquid and determine its performance in desulfurization of model oil. Project scope involved mainly four stages; synthesis of the [BMIM][FeCl4] ionic liquid, characterization of ionic liquid using NMR and FTIR, extraction of benzothiophene from dodecane model oil, (containing 4% and 6% benzothiophene) and determination of sulfur removal efficiency using CHNS analyzer. Two ionic liquids were prepared using anhydrous FeCl3 and hexaydrates FeCl3 reacted with butylmethylimidazolium chloride. Sulfur removal efficiency of [BMIM][FeCl4] ionic liquid prepared from anhydrous FeCl3 is 88.6% compared to from hexahydrates FeCl3 which is 87.9% for 4.0% benzothiophene in dodecane. The ionic liquid performance decreases as the percentage of sulfur increases.

Item Type: Final Year Project
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 5 not found.
Date Deposited: 11 Jan 2012 12:23
Last Modified: 25 Jan 2017 09:44
URI: http://utpedia.utp.edu.my/id/eprint/903

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