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

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 H 2 S removal. The absorbents were characterized by Fourier transform infrared spectroscopy. The iron/ethanolamine/DES system sho...

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Bibliographic Details
Published in:Environmental science and pollution research international 2021-07, Vol.28 (28), p.38026-38033
Main Authors: Liu, Xinpeng, Wang, Baohua, Qiu, Yahui, Dong, Xiaole, Song, Yixin, Meng, Qingmei, Li, Menghong
Format: Article
Language:English
Subjects:
Absorbents
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Desulfurization
Desulfurizing
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental science
Ethanolamine
Fourier transforms
Hydrogen sulfide
Infrared spectroscopy
Iron
Research Article
Solvents
Sulfur
Waste Water Technology
Water Management
Water Pollution Control
X-ray diffraction
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Summary: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 H 2 S 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 H 2 S 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.
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-021-13487-4