![Sample our Environment & Agriculture journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5934/TOC-Subject-Sample-2021-Environment-Agriculture.jpg"})
Abstract
Purification of solvents is required to maintain quality and absorption capacity for better performance and economics for CO2 capture plants. An effective technique is needed to separate degradation products from their parent amines to prevent operational problems such as corrosion, foaming, fouling and change of solvent physicochemical properties. To overcome these problems, an amine reclamation process is used to clean up the solvent. Over 30 years ago, only five amine clean-up methods – solvent changeover, solvent purging/feeding, mechanical filtration, activated carbon filtration and neutralization of organic/inorganic acids – existed, which are reviewed in this article. More specific and advanced approaches developed later to achieve more effective removal of impurities and degradation products from the solvents are also summarized. This article also gives future trends for reclamation techniques in amine-based CO2 capture processes including hybrid processes or improvement of the current technologies such as extraction, ion exchange, thermal distillation and electrodialysis.
Acknowledgements
The authors would like to acknowledge the research support over the past many years to the International Test Centre for CO2 Capture by the following organizations: Natural Sciences and Engineering Research Council of Canada, Canada Foundation for Innovation, Saskatchewan Ministry of Energy & Resources (Canada), Western Economic Diversification (Canada), EnCana Energy Inc. (Canada), E.ON Energy (UK), RWE Corp. (UK), Saudi Aramco (Saudi Arabia), Saskatchewan Power Corporation (Canada), HTC Purenergy (Canada), StatOil Hydro (Norway), SaskFerco Inc. (Canada), Sulzer Chemtech (Switzerland), Fluor Corporation (USA), the Canada Centre for Mineral and Energy Technology, Alberta Energy Research Institute (Canada), and the Research Institute of Innovative Technology for the Earth (Japan). W ElMoudir would also like to acknowledge the financial assistance received from HTC Purenergy and the Government of Libya for his PhD program.
Financial & competing interests disclosure
The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.
No writing assistance was utilized in the production of this manuscript.