Online analysis of amine concentration and CO2 loading in MEA solutions by ATR-FTIR spectroscopy

被引：34

作者：

Einbu, Aslak ^{[1
]}

Ciftja, Arlinda F. ^{[2
]}

Grimstvedt, Andreas ^{[1
]}

Zakeri, Ali ^{[2
]}

Svendsen, Hallvard F. ^{[2
]}

机构：

[1] SINTEF Mat & Chem, N-7465 Trondheim, Norway

[2] Norwegian Univ Sci & Technol, N-7491 Trondheim, Norway

来源：

6TH TRONDHEIM CONFERENCE ON CO2 CAPTURE, TRANSPORT AND STORAGE | 2012年 / 23卷

关键词：

CO2; Capture; online analysis; FTIR; ATR; PLS; amines; loading;

D O I：

10.1016/j.egypro.2012.06.040

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Liquid analysis of mono-ethanolamine (MEA) solutions was performed by Fourier Transform Infrared (FTIR) spectroscopy by Attenuated Total Reflectance (ATR). Calibration spectra were obtained from a set of standard solutions of MEA. A calibration model for prediction of amine- and CO2 concentration in MEA solutions was obtained by PLS regression of the dataset. Online analysis of MEA solvent in a pilot plant was demonstrated by application of the developed model using a mobile setup for extractive sampling to an FTIR analyser. Our results show that liquid FTIR by ATR combined with multivariate methods such as PLS is well suited for analysis of amine solvents, both in the lab and for online process monitoring. (C) 2012 The Authors. Published by Elsevier Ltd. Selection and/or peer-review under responsibility of SINTEF Energi AS

引用

页码：55 / 63

页数：9

共 2 条

[1] In situ Fourier Transform-Infrared (FT-IR) analysis of carbon dioxide absorption and desorption in amine solutions [J].