TY - JOUR
T1 - Removal of thiophene and its derivatives from model gasoline using polymer-supported metal chlorides ionic liquid moieties
AU - Wang, Xiaomeng
AU - Wan, Hui
AU - Han, Mingjuan
AU - Gao, Lei
AU - Guan, Guofeng
PY - 2012/2/29
Y1 - 2012/2/29
N2 - A series of polymer-supported metal chlorides imidazolium ionic liquid (IL) moieties, M/CMPS-Im(Cl) (M = CuCl, ZnCl 2 and FeCl 3), were synthesized by grafted method using chloromethylated polystyrene (CMPS) resin as support. Meanwhile, the structures of synthesized ILs were characterized by Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS), and scanning electron microscope (SEM). The results showed that the surface of CMPS resin was covered with a thin layer of extraction activity components. Then, the synthesized CMPS-supported imidazolium-based ILs were investigated to extract thiophene and its derivatives from model gasoline (n-octane/thiophene) under certain conditions. For a given imidazolium-based IL: first, the order of extraction capacity of extractant was CuCl/CMPS-Im(Cl) > ZnCl 2/CMPS-Im(Cl) > FeCl 3/CMPS-Im(Cl); the reason for this was that the π-complexation capability between Cu + and thiophene was stronger than those of Fe 3+ and Zn 2+. Second, the sulfur removal selectivity of sulfur compound followed the order of TS < BT < DBT under the same conditions; it indicated that the extraction was favored for those aromatic heterocyclic sulfur compounds with higher density aromatic π-electrons density. Meanwhile, the effect of mass ratio of model gasoline to M/CMPS-Im(Cl) ILs, different initial sulfur concentrations, and extraction time on desulfurization rates of M/CMPS-Im (Cl) ILs was performed, respectively. Finally, regeneration of M/CMPS-Im(Cl) ILs was investigated.
AB - A series of polymer-supported metal chlorides imidazolium ionic liquid (IL) moieties, M/CMPS-Im(Cl) (M = CuCl, ZnCl 2 and FeCl 3), were synthesized by grafted method using chloromethylated polystyrene (CMPS) resin as support. Meanwhile, the structures of synthesized ILs were characterized by Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS), and scanning electron microscope (SEM). The results showed that the surface of CMPS resin was covered with a thin layer of extraction activity components. Then, the synthesized CMPS-supported imidazolium-based ILs were investigated to extract thiophene and its derivatives from model gasoline (n-octane/thiophene) under certain conditions. For a given imidazolium-based IL: first, the order of extraction capacity of extractant was CuCl/CMPS-Im(Cl) > ZnCl 2/CMPS-Im(Cl) > FeCl 3/CMPS-Im(Cl); the reason for this was that the π-complexation capability between Cu + and thiophene was stronger than those of Fe 3+ and Zn 2+. Second, the sulfur removal selectivity of sulfur compound followed the order of TS < BT < DBT under the same conditions; it indicated that the extraction was favored for those aromatic heterocyclic sulfur compounds with higher density aromatic π-electrons density. Meanwhile, the effect of mass ratio of model gasoline to M/CMPS-Im(Cl) ILs, different initial sulfur concentrations, and extraction time on desulfurization rates of M/CMPS-Im (Cl) ILs was performed, respectively. Finally, regeneration of M/CMPS-Im(Cl) ILs was investigated.
UR - http://www.scopus.com/inward/record.url?scp=84863296231&partnerID=8YFLogxK
U2 - 10.1021/ie201931a
DO - 10.1021/ie201931a
M3 - 文章
AN - SCOPUS:84863296231
SN - 0888-5885
VL - 51
SP - 3418
EP - 3424
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 8
ER -