Removal of Hg2+ from flue gas by petroleum thioether

Petroleum thioether showed excellent flue gas de-Hg2+ ability to control mercury reemission. Petroleum thioether was prepared with high-sulfur crude oil as raw materials and characterized by FT-IR. The thioether group content was 0.104 g/g by the potentiometric titration with lead acetate as titrant...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2019-10, Vol.354 (1)
Main Authors: Fu, K L, Yao, M Y, Wang, D B, Zhao, H C, Cheng, G W, Yang, S
Format: Article
Language:English
Subjects:
Crude oil
Flue gas
Lead acetates
Mercury
Mercury (metal)
Petroleum
Potentiometric titration
Raw materials
Regeneration
Stability
Sulfur
Titration
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Summary:Petroleum thioether showed excellent flue gas de-Hg2+ ability to control mercury reemission. Petroleum thioether was prepared with high-sulfur crude oil as raw materials and characterized by FT-IR. The thioether group content was 0.104 g/g by the potentiometric titration with lead acetate as titrant. The Hg2+ removal performance of petroleum thioether was studied in simulated flue gas. The experiment results exhibited that petroleum thioether showed excellent Hg2+ removal efficiency in flue gas without threat of mercury reemission, and the process for Hg2+ capture by petroleum thioether was exothermic and went on smoothly below 60°C. 6 M HCl could be used to regenerate petroleum thioether trapped Hg2+, and there acquired a regeneration of 89.6%, which meant this Hg2+ removal treat showed low operation cost. Moreover, the regeneration of petroleum thioether captured Hg2+ facilitated the centralized processing of mercury and prepared well for the full utilization of mercury resources.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/354/1/012094