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Multivariate calibration of CO2 Solubility in iethanolamine (DEA) using Raman Spectroscopy

Osman, Nuralia Syairah (2015) Multivariate calibration of CO2 Solubility in iethanolamine (DEA) using Raman Spectroscopy. IRC, Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

The emission of greenhouse gas which is mainly from carbon dioxide (CO2) have cause phenomena of global warming and climate changes. Thus, this issues has become main focus in worldwide nowadays. CO2 removal process also is an essential step in many industrial processing especially in natural gas processing. Absorption based on alkanolamines like diethanolamine (DEA) have been widely applied in carbon capture plant. CO2 solubility has become an important parameter in the absorption process for proper process control in plant operation. Measurement of CO2 solubility in 10%, 20% and 30% DEA using Raman spectroscopy is the main focus in this research. Raman shift and intensity of different DEA concentration with respect to CO2 loading (mol CO2 / mol amine) are obtained by using Raman spectroscopy. Partial Least Square (PLS) regression approach will be utilized to develop a calibration model that relate the Raman spectroscopy data to CO2 solubility in different concentration of DEA. From the result obtained, 10%, 20% and 30% model have shown great performance and demonstrate good prediction of CO2 solubility. In addition, a combined concentration model and combined modified model is developed to predict CO2 solubility at different DEA concentration. From the study, with the inverse of 900 – 1100 cm-1 are added to predicting matrix, the validation R2 have been increased from 0.9004 to 0.9136. Combination of analytical instrument and multivariate calibration tools will aid the process of online monitoring CO2 solubility in DEA in process plant operation.

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Separation Process
Subject: T Technology > TP Chemical technology
Divisions: UNSPECIFIED
Depositing User: Users 5719 not found.
Date Deposited: 15 Apr 2016 10:31
Last Modified: 25 Jan 2017 09:35
URI: http://utpedia.utp.edu.my/id/eprint/16470

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