- Title
- IR monitoring of absorbent composition and degradation during pilot plant operation
- Creator
- Puxty, Graeme; Bennett, Robert; Conway, Will; Webster-Gardiner, Mike; Yang, Qi; Pearson, Pauline; Cottrell, Aaron; Huang, Sanger; Feron, Paul; Reynolds, Alicia; Verheyen, Vincent
- Date
- 2020
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/174509
- Identifier
- vital:14857
- Identifier
-
https://doi.org/10.1021/acs.iecr.9b05309
- Identifier
- ISBN:0888-5885 (ISSN)
- Abstract
- The monitoring of the absorbent during the operation of CO2 separation processes is a necessary and challenging task. The most common absorbent used is an aqueous amine solution. Traditional approaches to analysis such as titration and chromatography are time-consuming and only provide limited information. This hinders the ability of process operators to rapidly respond to changes in operating conditions. In this work, a combination of infrared (IR) spectroscopy and principle component regression (PCR) analyses have been demonstrated as a rapid and reliable technique to determine the composition of an absorbent during a pilot plant campaign at a brown coal power station. The concentration of amine, a degradation product, CO2, and water was monitored throughout the campaign by a method that provided results in minutes. The results were verified by independent sample analysis using acid-base titration, high-performance liquid chromatography (HPLC), and 13C NMR spectroscopy. It was necessary to use spectral windowing when building the IR-PCR model, but this resulted in a robust and reliable method that has been demonstrated to work in a real-world process environment. © 2019 American Chemical Society.; The authors wish to acknowledge the financial assistance provided by the Brown Coal Innovation Australia, Ltd., a private member-based company with funding contracts through the Australian National Low Emissions Coal Research and Development, Ltd. (ANLEC R&D) and the Victorian State Government. The work described here was made possible through the PICA project, a collaboration between AGL Loy Yang, IHI, and CSIRO that aims to advance post-combustion CO 2 -capture technology in Australia.
- Publisher
- American Chemical Society
- Relation
- Industrial and Engineering Chemistry Research Vol. 59, no. 15 (2020), p. 7080-7086
- Rights
- Metadata is freely available under a CCO license
- Rights
- Copyright © 2019 American Chemical Society
- Subject
- 03 Chemical Sciences; 09 Engineering
- Reviewed
- Funder
- The authors wish to acknowledge the financial assistance provided by the Brown Coal Innovation Australia, Ltd., a private member-based company with funding contracts through the Australian National Low Emissions Coal Research and Development, Ltd. (ANLEC R&D) and the Victorian State Government. The work described here was made possible through the PICA project, a collaboration between AGL Loy Yang, IHI, and CSIRO that aims to advance post-combustion CO 2 -capture technology in Australia.
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