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A STUDY OF ACETIC ACID ROLE IN C02 CORROSION

In order to understand and determine the mechanism and corrosion reaction of C02 ~orrosion in presence of acetic acid, HAc studies and experiments about the matter has been ione. This report will document all information and data collected from experiments done throughout the project. In major oi...

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Main Author: Mastuki, Nabilah
Format: Final Year Project
Language:English
Published: Universiti Teknologi Petronas 2011
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://utpedia.utp.edu.my/6804/1/2011%20-%20A%20study%20of%20acetic%20role%20in%20co2%20corrosin.pdf
http://utpedia.utp.edu.my/6804/
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spelling my-utp-utpedia.68042017-01-25T09:41:41Z http://utpedia.utp.edu.my/6804/ A STUDY OF ACETIC ACID ROLE IN C02 CORROSION Mastuki, Nabilah TJ Mechanical engineering and machinery In order to understand and determine the mechanism and corrosion reaction of C02 ~orrosion in presence of acetic acid, HAc studies and experiments about the matter has been ione. This report will document all information and data collected from experiments done throughout the project. In major oilfield, C02 corrosion is considered as major problems that cost million of dollars to the industry. C02 corrosion caused by carbonic acid that formed when C02 gas dissolved in the water or brine that accompanies oil production at high pressures common in ~nderground oil and gas reservoirs. Usually, COz corrosion problems are manageable and under ~ontrol. However, when small amount of organic acid that dominated by acetic acid is present in the system, the corrosion rate changes drastically. In this project, Electrochemical Impedance Spectroscopy ( EIS ) and Linear Polarization Resistance ( LPR ) was the measurement technique that being used in the project. EIS is a technique employed to study the mechanisme of C02 corrosion in presence of acetic acid, while LPR is a technique to determine the corrosion rate. All experiments were conducted in a 3% NaCl solution of pH 5.5 and temperature 60°C.Based from results that was gathered from the experiment, LPR shows that corrosion rate for lOOOppm and 2000ppm of acetic acid increased significantly compared to blank C02. Meanwhile for 4000ppm, the corrosion rate decreased. This phenomenon was due to excessive non ionized acetic acid HAc. The carbonate ions from the iron carbonate could not dissolve the excessive amount of acetate leaving the iron ions to reacts with it and form iron acetate. Formation of FeC03 that decrease the corrosion rate can be proven from the trend of the data collection that shows significant decrease with time. It is correct to claim that in presence of acetic acid, the corrosion rate could increase significantly. Universiti Teknologi Petronas 2011-09 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/6804/1/2011%20-%20A%20study%20of%20acetic%20role%20in%20co2%20corrosin.pdf Mastuki, Nabilah (2011) A STUDY OF ACETIC ACID ROLE IN C02 CORROSION. Universiti Teknologi Petronas. (Unpublished)
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Electronic and Digitized Intellectual Asset
url_provider http://utpedia.utp.edu.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Mastuki, Nabilah
A STUDY OF ACETIC ACID ROLE IN C02 CORROSION
description In order to understand and determine the mechanism and corrosion reaction of C02 ~orrosion in presence of acetic acid, HAc studies and experiments about the matter has been ione. This report will document all information and data collected from experiments done throughout the project. In major oilfield, C02 corrosion is considered as major problems that cost million of dollars to the industry. C02 corrosion caused by carbonic acid that formed when C02 gas dissolved in the water or brine that accompanies oil production at high pressures common in ~nderground oil and gas reservoirs. Usually, COz corrosion problems are manageable and under ~ontrol. However, when small amount of organic acid that dominated by acetic acid is present in the system, the corrosion rate changes drastically. In this project, Electrochemical Impedance Spectroscopy ( EIS ) and Linear Polarization Resistance ( LPR ) was the measurement technique that being used in the project. EIS is a technique employed to study the mechanisme of C02 corrosion in presence of acetic acid, while LPR is a technique to determine the corrosion rate. All experiments were conducted in a 3% NaCl solution of pH 5.5 and temperature 60°C.Based from results that was gathered from the experiment, LPR shows that corrosion rate for lOOOppm and 2000ppm of acetic acid increased significantly compared to blank C02. Meanwhile for 4000ppm, the corrosion rate decreased. This phenomenon was due to excessive non ionized acetic acid HAc. The carbonate ions from the iron carbonate could not dissolve the excessive amount of acetate leaving the iron ions to reacts with it and form iron acetate. Formation of FeC03 that decrease the corrosion rate can be proven from the trend of the data collection that shows significant decrease with time. It is correct to claim that in presence of acetic acid, the corrosion rate could increase significantly.
format Final Year Project
author Mastuki, Nabilah
author_facet Mastuki, Nabilah
author_sort Mastuki, Nabilah
title A STUDY OF ACETIC ACID ROLE IN C02 CORROSION
title_short A STUDY OF ACETIC ACID ROLE IN C02 CORROSION
title_full A STUDY OF ACETIC ACID ROLE IN C02 CORROSION
title_fullStr A STUDY OF ACETIC ACID ROLE IN C02 CORROSION
title_full_unstemmed A STUDY OF ACETIC ACID ROLE IN C02 CORROSION
title_sort study of acetic acid role in c02 corrosion
publisher Universiti Teknologi Petronas
publishDate 2011
url http://utpedia.utp.edu.my/6804/1/2011%20-%20A%20study%20of%20acetic%20role%20in%20co2%20corrosin.pdf
http://utpedia.utp.edu.my/6804/
_version_ 1739831389060071424
score 13.211869

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