Heat-Stable Salts and Methods for Their Removal from Alkanolamine Carbon Dioxide Absorbents (Review)
- Autores: Bazhenov S.D.1, Novitskii E.G.1, Vasilevskii V.P.1, Grushevenko E.A.1, Bienko A.A.2, Volkov A.V.1
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Afiliações:
- Topchiev Institute of Petrochemical Synthesis
- PAO VNIPIgasdobycha
- Edição: Volume 92, Nº 8 (2019)
- Páginas: 1045-1063
- Seção: Physicochemical Studies of Systems and Processes
- URL: https://journals.rcsi.science/1070-4272/article/view/216648
- DOI: https://doi.org/10.1134/S1070427219080019
- ID: 216648
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Resumo
Absorption using aqueous solutions of alkanolamines is the most widely used procedure for removal of carbon dioxide from natural gas, flue gases from power-generating facilities, and other mixtures. Its main drawback is degradation/deactivation of alkanolamine under the process conditions (high temperatures, presence of oxygen and other impurities) with the formation of heat-stable salts consisting of alkanolammonium cation and anions of organic and inorganic acids. The main operation problems caused by heat-stable salts are considered in the review. Three main methods for removal of heat-stable salts from alkanolamine adsorbents are described in detail: distillation, ion exchange, and electrodialysis. The main characteristics of these methods and their advantages and drawbacks are described, and a comparative analysis is made. The history and state-of-the art of studies within the framework of each method are presented.
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Sobre autores
S. Bazhenov
Topchiev Institute of Petrochemical Synthesis
Autor responsável pela correspondência
Email: sbazhenov@ips.ac.ru
Rússia, Moscow, 119991
E. Novitskii
Topchiev Institute of Petrochemical Synthesis
Email: sbazhenov@ips.ac.ru
Rússia, Moscow, 119991
V. Vasilevskii
Topchiev Institute of Petrochemical Synthesis
Email: sbazhenov@ips.ac.ru
Rússia, Moscow, 119991
E. Grushevenko
Topchiev Institute of Petrochemical Synthesis
Email: sbazhenov@ips.ac.ru
Rússia, Moscow, 119991
A. Bienko
PAO VNIPIgasdobycha
Email: sbazhenov@ips.ac.ru
Rússia, Moscow, 119415
A. Volkov
Topchiev Institute of Petrochemical Synthesis
Email: sbazhenov@ips.ac.ru
Rússia, Moscow, 119991
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