TY - JOUR
T1 - Support effect on conversion of quinoline over ReS2 catalyst
AU - Bassi, R.
AU - Villarroel, M.
AU - Gil-Llambias, F. J.
AU - Baeza, P.
AU - García-Fierro, J. L.
AU - Martínez, N.
AU - Olivera, P.
AU - Leiva, K.
AU - Escalona, N.
N1 - Funding Information:
The authors thank CONICYT-Chile for FONDECYT No 1130749 grant.
PY - 2016
Y1 - 2016
N2 - The conversion of quinoline over ReS2 supported on γ-Al2O3, SiO2, ZrO2 and TiO2 catalysts in a batch reactor at 300°C and 5 MPa of hydrogen pressure was studied. The catalysts were prepared by wet impregnation with a loading of 1.5 atoms of Re per nm2 of support. The catalysts were characterized by N2 adsorption, X-ray photoelectron spectroscopy (XPS) and X-ray powder diffraction (XRD). The Re(x)/supports catalysts displayed high activities for the conversion of quinoline, although negligible formation of N-free compounds (hydrodenitrogenation) were observed. The intrinsic activities of ReS2 were modified by the support decreased in the order: Re/TiO2 > Re/ZrO2 > Re/SiO2 > Re/γ-Al2O3. The highest activity displayed by the Re/TiO2 catalyst was correlated with the Re dispersion and formation of ReS2 species. Meanwhile, the lower conversion of quinoline over the Re/ZrO2, Re/SiO2 and Re/γ-Al2O3 catalysts was related to the combined effect of the textural properties of catalysts and the formation of ReS(2-x) species on the supports.
AB - The conversion of quinoline over ReS2 supported on γ-Al2O3, SiO2, ZrO2 and TiO2 catalysts in a batch reactor at 300°C and 5 MPa of hydrogen pressure was studied. The catalysts were prepared by wet impregnation with a loading of 1.5 atoms of Re per nm2 of support. The catalysts were characterized by N2 adsorption, X-ray photoelectron spectroscopy (XPS) and X-ray powder diffraction (XRD). The Re(x)/supports catalysts displayed high activities for the conversion of quinoline, although negligible formation of N-free compounds (hydrodenitrogenation) were observed. The intrinsic activities of ReS2 were modified by the support decreased in the order: Re/TiO2 > Re/ZrO2 > Re/SiO2 > Re/γ-Al2O3. The highest activity displayed by the Re/TiO2 catalyst was correlated with the Re dispersion and formation of ReS2 species. Meanwhile, the lower conversion of quinoline over the Re/ZrO2, Re/SiO2 and Re/γ-Al2O3 catalysts was related to the combined effect of the textural properties of catalysts and the formation of ReS(2-x) species on the supports.
KW - Hydrodenitrogenation
KW - Quinoline
KW - ReS
KW - Supports
UR - http://www.scopus.com/inward/record.url?scp=85010465494&partnerID=8YFLogxK
U2 - 10.4067/s0717-97072016000400004
DO - 10.4067/s0717-97072016000400004
M3 - Article
AN - SCOPUS:85010465494
VL - 61
SP - 3170
EP - 3176
JO - Journal of the Chilean Chemical Society
JF - Journal of the Chilean Chemical Society
SN - 0717-9324
IS - 4
ER -