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Kinetics of Acidity Removal of Naphthenic Acid Model Compound Using Sub-Critical Methanol

Abdullah, Anuar (2015) Kinetics of Acidity Removal of Naphthenic Acid Model Compound Using Sub-Critical Methanol. IRC, Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

This paper studies on the reaction kinetics of naphthenic acids model compounds upon reacting with subcritical methanol. Naphthenic acids are the primary contributor to the total acid number of the oil and it can be expressed in terms of total acid number (TAN). Crude oil containing these acids which are corrosive can cause many problems such as equipment failures, high maintenance cost, reduces product quality and environmental disposal problems. The model compounds of naphthenic acid; 2,6 – naphthalene dicarboxylic acid (C12H8O4) was tested with subcritical methanol under temperature range from 180 to 220 with a temperature interval of 20 in an autoclave reactor. The reaction time for the mixture was from 0 min to 60 min. This experiment reveals that the highest TAN reduction was achieved at 220 and 60 minutes where the reduction was about 48.80%. The TAN reduction followed second order kinetics; with Arrhenius parameters of activation energy 7.472 kcal/mol and a pre-exponential factor of 0.877 fraction-1s-1.The result show that methanol is capable to reduce TAN in sub-critical condition with absence of catalyst

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Separation Process
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 5719 not found.
Date Deposited: 15 Apr 2016 10:31
Last Modified: 25 Jan 2017 09:34
URI: http://utpedia.utp.edu.my/id/eprint/16473

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