Deep eutectic solvents as alternative green solvents for the efficient desulfurization of liquid fuel: A comprehensive review

FUEL

卷:305

Review

Tahir, Suman¹  Qazi, Umair Yaqub²  Naseem, Zubera¹  Tahir, Noor¹  Zahid, Muhammad¹  Javaid, Rahat³  Shahid, Imran⁴ 

[1] Univ Agr Faisalabad, Dept Chem, Faisalabad 38040, Pakistan

[2] Univ Hafr Al Batin, Dept Chem, Coll Sci, POB 1803, Hafar al Batin 39524, Saudi Arabia

[3] Natl Inst Adv Ind Sci & Technol, Fukushima Renewable Energy Inst, Renewable Energy Res Ctr, AIST, 2-2-9 Machiikedai, Koriyama, Fukushima 9630298, Japan

[4] Qatar Univ, Ctr Environm Sci, Doha, Qatar

关键词: Sulfur compounds;    Deep eutectic solvents;    Extractive desulfurization;    Petroleum refining;    Oxidative desulfurization;    Ionic liquids;   

DOI  :  10.1016/j.fuel.2021.121502

来源: Elsevier

【 摘 要 】

Increase in the requirement of energy consumption has been followed by a consistent rise in sulfur emission with economic and health issues. Moreover, it considerably decreases the efficacy of developed emission control systems of diesel engines, thus ultimately harms the atmosphere. It leads to a strict sulfur discharge limit to approximately 15 ppm and sequentially served as a goal for investigating different desulfurization technologies. Hydrodesulfurization, a conventional refinery desulfurization process is operated at higher pressure and tem-perature, employing expensive catalysts and hydrogen gas. This review aims to consider the merits and demerits of main areas of the substitute desulfurization processes, comprising adsorptive, extractive, oxidative, and bio-desulfurization and comprehensively discuss the role of DESs emphasizing on the factors affecting in extractive and oxidative desulfurization. Different factors such as DESs selection, extraction temperature, extraction time, DESs regeneration, and multistage extractions are considered that affect the desulfurization efficiency. Deep eutectic solvents explored in 2001, a less toxic solvent have been keenly investigated as an alternative solvent for extractive desulfurization since 2013. DESs showed a higher capability for sulfur elimination. Low synthetic cost and economical raw materials, less solvent to feed ratio, and valuable green characteristics show DESs suitable for the desulfurization process.

【 授权许可】

Free