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Study on the desulfurization performance of iron/ethanolamine/deep eutectic solvent system.

Authors
  • Liu, Xinpeng1
  • Wang, Baohua2
  • Qiu, Yahui2
  • Dong, Xiaole2
  • Song, Yixin3
  • Meng, Qingmei2
  • Li, Menghong2
  • 1 College of Resources and Environmental Engineering, Shandong University of Technology, Zibo, 255049, People's Republic of China. [email protected] , (China)
  • 2 College of Resources and Environmental Engineering, Shandong University of Technology, Zibo, 255049, People's Republic of China. , (China)
  • 3 Shandong Province Research Institute of Coal Geology Planning and Exploration, Jinan, 250104, People's Republic of China. , (China)
Type
Published Article
Journal
Environmental Science and Pollution Research
Publisher
Springer-Verlag
Publication Date
Jul 01, 2021
Volume
28
Issue
28
Pages
38026–38033
Identifiers
DOI: 10.1007/s11356-021-13487-4
PMID: 33725305
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Deep eutectic solvent (DES) was applied as the solvent of iron/alcohol amine system, and the prepared iron/ethanolamine/DES system was found to be a good desulfurizer for H2S removal. The absorbents were characterized by Fourier transform infrared spectroscopy. The iron/ethanolamine/DES system showed a significantly enhanced desulfurization performance compared with DES solution of iron or alcohol amine separately. Besides, the absorbents showed relatively stable desulfurization performance, which could keep a high H2S removal efficiency in a wide temperature range from 30-90°C. The iron/ethanolamine/DES system could be recycled for at least three times. The desulfurization product was analyzed by energy dispersive spectrum and X-ray diffraction, and the desulfurization product was identified as sulfur element. © 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.

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