Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 44, Issue 12, Pages 5725-5738Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2019.01.029
Keywords
Methanol steam reforming; MCM-41; Solgel; Impregnation; Support pretreatment; Catalyst preparation
Categories
Funding
- Iranian Nanotechnology Initiative Council
- Babol Noshirvani University of Technology [BNUT/370152/97]
Ask authors/readers for more resources
ZrO2-promoted Cu-ZnO catalysts were prepared through the sol-gel, conventional impregnation and modified impregnation methods using MCM-41 as support material and applied to the methanol steam reforming (MSR) reaction. The synthesized catalysts were characterized by the XRD, BET, FESEM, TEM, XRF, FTIR, H-2-TPR and TGA methods. The determined physiochemical properties suggested that pretreatment of MCM-41 with acetic acid before metal impregnation remarkably decreases the size of the metal particles and improves their dispersion and reduction behavior. Among the synthesized catalysts, the Cu-Zn-OZrO2/JMCM-41 sample prepared through the modified impregnation method exhibited the best catalytic performance with 97.8% methanol conversion, 99.0% H-2 selectivity, 0.4% CO selectivity and the lowest level of coke deposition, at 300 degrees C. In addition, all catalysts resisted against deactivation by conserving their catalytic activity over 40 h operation, indicating that the use of high surface area MCM-41 as support, the ZrO2 promoter, and the proper synthesis methods significantly enhanced the catalytic activity in the MSR process. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available