[HDMF]Cl-based DES as highly efficient extractants and catalysts for oxidative desulfurization of model oil

Rong-Xiang Zhao; Xiu-Ping Li; Chun-Feng Mao; Liangpei Hou; Xiaohan Gao

doi:10.1039/c8ra10554e

[HDMF]Cl-based DES as highly efficient extractants and catalysts for oxidative desulfurization of model oil

RSC Adv. 2019 May 8;9(25):14400-14406. doi: 10.1039/c8ra10554e. eCollection 2019 May 7.

Authors

Rong-Xiang Zhao¹, Xiu-Ping Li¹, Chun-Feng Mao¹, Liangpei Hou¹, Xiaohan Gao¹

Affiliation

¹ College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University Fushun 113001 China zylhzrx@126.com lilili_171717@126.com.

Abstract

N,N-Dimethylformamide hydrochloric acid/XMCl _n ([HDMF]Cl/XMCl _n , M = Zn or Fe, n = 2 or 3) was synthesized by stirring the mixture of [HDMF]Cl and metal chloride. [HDMF]Cl-based DES was characterized by FT-IR spectroscopy, ESI-MS and ¹H-NMR spectroscopy. The oxidative desulfurization activity was investigated using [HDMF]Cl/0.2FeCl₃ and [HDMF]Cl/ZnCl₂ as the extractant and catalyst, and hydrogen peroxide (H₂O₂) as the oxidant. The desulfurization rate can reach up to 98.08% and 99.2% for DBT using [HDMF]Cl/0.2FeCl₃ and [HDMF]Cl/ZnCl₂, respectively. After recycling for 7 times, the removal rate of DBT still can reach more than 97%.