Modelling and Optimization of Carbon Steel Corrosion in CO2 Containing Oilfield Produced Water in Presence of HAc

Previously, many empirical models have been used to predict corrosion rates under different CO2 corrosion parameters conditions. Most of these models did not predict the corrosion rate exactly, besides it determined effects of variables by holding some variables constant and changing the values of o...

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Main Authors: Aprael S. Yaro, Khalid H. Rashid
Format: Article
Language:English
Published: University of Baghdad/College of Engineering 2016-06-01
Series:Iraqi Journal of Chemical and Petroleum Engineering
Subjects:
Online Access:http://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/249
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author Aprael S. Yaro
Khalid H. Rashid
author_facet Aprael S. Yaro
Khalid H. Rashid
author_sort Aprael S. Yaro
collection DOAJ
description Previously, many empirical models have been used to predict corrosion rates under different CO2 corrosion parameters conditions. Most of these models did not predict the corrosion rate exactly, besides it determined effects of variables by holding some variables constant and changing the values of other variables to obtain the regression model. As a result the experiments will be large and cost too much. In this paper response surface methodology (RSM) was proposed to optimize the experiments and reduce the experimental running. The experiments studied effects of temperature (40 – 60 °C), pH (3-5), acetic acid (HAc) concentration (1000-3000 ppm) and rotation speed (1000-1500 rpm) on CO2 corrosion performance of the regression model calculated by RSM. The experiments were conducted in saturated solution of CO2 with 3.5 % NaCl solution. STATISTICA program version 10 was used for data analysis. In conclusion a quadratic model is proposed to predict the effect of mentioned variables in CO2 environment.
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spelling doaj.art-b7bed4bd3cd141c8b33edd08db799d412022-12-22T03:25:20ZengUniversity of Baghdad/College of EngineeringIraqi Journal of Chemical and Petroleum Engineering1997-48842618-07072016-06-01162Modelling and Optimization of Carbon Steel Corrosion in CO2 Containing Oilfield Produced Water in Presence of HAcAprael S. YaroKhalid H. RashidPreviously, many empirical models have been used to predict corrosion rates under different CO2 corrosion parameters conditions. Most of these models did not predict the corrosion rate exactly, besides it determined effects of variables by holding some variables constant and changing the values of other variables to obtain the regression model. As a result the experiments will be large and cost too much. In this paper response surface methodology (RSM) was proposed to optimize the experiments and reduce the experimental running. The experiments studied effects of temperature (40 – 60 °C), pH (3-5), acetic acid (HAc) concentration (1000-3000 ppm) and rotation speed (1000-1500 rpm) on CO2 corrosion performance of the regression model calculated by RSM. The experiments were conducted in saturated solution of CO2 with 3.5 % NaCl solution. STATISTICA program version 10 was used for data analysis. In conclusion a quadratic model is proposed to predict the effect of mentioned variables in CO2 environment.http://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/249CO2 corrosion, regression analysis, optimization, carbon steel, corrosion rate, full factorial experimental design
spellingShingle Aprael S. Yaro
Khalid H. Rashid
Modelling and Optimization of Carbon Steel Corrosion in CO2 Containing Oilfield Produced Water in Presence of HAc
Iraqi Journal of Chemical and Petroleum Engineering
CO2 corrosion, regression analysis, optimization, carbon steel, corrosion rate, full factorial experimental design
title Modelling and Optimization of Carbon Steel Corrosion in CO2 Containing Oilfield Produced Water in Presence of HAc
title_full Modelling and Optimization of Carbon Steel Corrosion in CO2 Containing Oilfield Produced Water in Presence of HAc
title_fullStr Modelling and Optimization of Carbon Steel Corrosion in CO2 Containing Oilfield Produced Water in Presence of HAc
title_full_unstemmed Modelling and Optimization of Carbon Steel Corrosion in CO2 Containing Oilfield Produced Water in Presence of HAc
title_short Modelling and Optimization of Carbon Steel Corrosion in CO2 Containing Oilfield Produced Water in Presence of HAc
title_sort modelling and optimization of carbon steel corrosion in co2 containing oilfield produced water in presence of hac
topic CO2 corrosion, regression analysis, optimization, carbon steel, corrosion rate, full factorial experimental design
url http://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/249
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