An FTIR spectroscopic study and quantification of 2-amino-2-methyl-1-propanol, piperazine and absorbed carbon dioxide in concentrated aqueous solutions
| Autor: | Denise Trigilio Tavares, José Luís de Paiva, Armando Zanone |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Aqueous solution
020209 energy 02 engineering and technology chemistry.chemical_compound Piperazine chemistry Carbon dioxide Partial least squares regression 0202 electrical engineering electronic engineering information engineering Amine gas treating Fourier transform infrared spectroscopy Absorption (chemistry) Spectroscopy QUIMIOMETRIA Nuclear chemistry |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 0924-2031 |
| Popis: | This study reports the investigation of carbon dioxide (CO2) absorption into an amine blend solution of 2-amino-2-methyl-1-propanol (AMP) and piperazine (PZ). The reaction in the liquid phase between CO2 and the amines were qualitatively and quantitatively monitored by Fourier Transform Mid-Infrared spectroscopy (mid-FTIR). A multivariate partial least square regression (PLS2) model was obtained to quantify free or non-reacted AMP and PZ and absorbed CO2 in all chemical forms, i.e. no differentiation was made into carbonates or carbamates. The calibration model was constructed using a single wide region and 270 calibration samples. The concentration of AMP, PZ and CO2 from 568 samples were simultaneously predicted with low relative errors. |
| Databáze: | OpenAIRE |
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