%0 Journal Article
%T Ca-Doped CrOX/¦Ã-Al2O3 Catalysts with Improved Dehydrogenation Performance for the Conversion of Isobutane to Isobutene
%J Catalysts | An Open Access Journal from MDPI
%D 2019
%R https://doi.org/10.3390/catal9110968
%X The dehydrogenation of low-carbon alkane to obtain olefins is an effective way to meet the steadily increasing demand of these building blocks in chemical industry. In this study, Ca-doped CrO x/¦Ã-Al 2O 3 catalysts were fabricated via a one-pot method by employing Cr(OH) 3 as the precursor, and their catalytic performances were tested in the dehydrogenation of isobutane to isobutene (DITI) process. The prepared catalysts were intensively characterized by XRD, SEM, NH 3-TPD, H 2-TPR, low-temperature N 2 adsorption¨Cdesorption, etc. These characterization results indicated that the doping of Ca into the CrO x/¦Ã-Al 2O 3 catalysts could tune the acidity properties of the prepared catalysts and enhance the interaction between the active species and support. The Ca-doped CrO x/¦Ã-Al 2O 3 catalysts, especially the Ca2-Cr/¦Ã-Al 2O 3 catalyst with a Ca doping of 2 wt%, exhibited a superior catalytic performance in the DITI process in comparison with the undoped catalyst. View Full-Tex
%U https://www.mdpi.com/2073-4344/9/11/968