QUANTITATIVE SPECIATION OF THE LIQUID PHASE BY FTIR SPECTROSCOPY IN THE SYSTEM AMP-PZ-CO2-H2O

This work reports a multivariate calibration partial least square regression (PLS) model to quantify the liquid-phase concentrations of 2-amino-2-methyl-1-propanol (AMP), piperazine (PZ), bicarbonate, PZ monocarbamate, and PZ dicarbamate during the absorption/desorption process by Fourier Transform...

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Main Authors: Armando Zanone, Denise T. Tavares, José L. de Paiva
Format: Article
Language:English
Published: Sociedade Brasileira de Química 2022-08-01
Series:Química Nova
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422022000600674&tlng=en
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author Armando Zanone
Denise T. Tavares
José L. de Paiva
author_facet Armando Zanone
Denise T. Tavares
José L. de Paiva
author_sort Armando Zanone
collection DOAJ
description This work reports a multivariate calibration partial least square regression (PLS) model to quantify the liquid-phase concentrations of 2-amino-2-methyl-1-propanol (AMP), piperazine (PZ), bicarbonate, PZ monocarbamate, and PZ dicarbamate during the absorption/desorption process by Fourier Transform Mid-Infrared spectroscopy (mid-FTIR). The model could predict 33 different concentrations ranging from 0 to 40 wt.% AMP, 0 to 15 wt.% PZ, and 0 to 12 wt.% total CO2 with relative errors lower than 10%, and 87% of the variance of all samples have been represented (R2), except for PZ dicarbamate. A comparison of a single PLS2 model was made with multiple PLS1 models, one for each chemical species present in the liquid phase. The latter had better predictions and made it possible to differentiate CO2 from its chemical forms, allowing a better understanding of the CO2 capture processes.
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spelling doaj.art-ce7051513a444851bbaf74d2e1dbd7292022-12-22T04:03:05ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642022-08-0145667467910.21577/0100-4042.20170883QUANTITATIVE SPECIATION OF THE LIQUID PHASE BY FTIR SPECTROSCOPY IN THE SYSTEM AMP-PZ-CO2-H2OArmando Zanonehttps://orcid.org/0000-0003-3082-5233Denise T. TavaresJosé L. de PaivaThis work reports a multivariate calibration partial least square regression (PLS) model to quantify the liquid-phase concentrations of 2-amino-2-methyl-1-propanol (AMP), piperazine (PZ), bicarbonate, PZ monocarbamate, and PZ dicarbamate during the absorption/desorption process by Fourier Transform Mid-Infrared spectroscopy (mid-FTIR). The model could predict 33 different concentrations ranging from 0 to 40 wt.% AMP, 0 to 15 wt.% PZ, and 0 to 12 wt.% total CO2 with relative errors lower than 10%, and 87% of the variance of all samples have been represented (R2), except for PZ dicarbamate. A comparison of a single PLS2 model was made with multiple PLS1 models, one for each chemical species present in the liquid phase. The latter had better predictions and made it possible to differentiate CO2 from its chemical forms, allowing a better understanding of the CO2 capture processes.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422022000600674&tlng=enamine blendcarbamatecarbon captureinfrared spectroscopy.
spellingShingle Armando Zanone
Denise T. Tavares
José L. de Paiva
QUANTITATIVE SPECIATION OF THE LIQUID PHASE BY FTIR SPECTROSCOPY IN THE SYSTEM AMP-PZ-CO2-H2O
Química Nova
amine blend
carbamate
carbon capture
infrared spectroscopy.
title QUANTITATIVE SPECIATION OF THE LIQUID PHASE BY FTIR SPECTROSCOPY IN THE SYSTEM AMP-PZ-CO2-H2O
title_full QUANTITATIVE SPECIATION OF THE LIQUID PHASE BY FTIR SPECTROSCOPY IN THE SYSTEM AMP-PZ-CO2-H2O
title_fullStr QUANTITATIVE SPECIATION OF THE LIQUID PHASE BY FTIR SPECTROSCOPY IN THE SYSTEM AMP-PZ-CO2-H2O
title_full_unstemmed QUANTITATIVE SPECIATION OF THE LIQUID PHASE BY FTIR SPECTROSCOPY IN THE SYSTEM AMP-PZ-CO2-H2O
title_short QUANTITATIVE SPECIATION OF THE LIQUID PHASE BY FTIR SPECTROSCOPY IN THE SYSTEM AMP-PZ-CO2-H2O
title_sort quantitative speciation of the liquid phase by ftir spectroscopy in the system amp pz co2 h2o
topic amine blend
carbamate
carbon capture
infrared spectroscopy.
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422022000600674&tlng=en
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AT denisettavares quantitativespeciationoftheliquidphasebyftirspectroscopyinthesystemamppzco2h2o
AT joseldepaiva quantitativespeciationoftheliquidphasebyftirspectroscopyinthesystemamppzco2h2o