Journal
APPLIED CATALYSIS A-GENERAL
Volume 485, Issue -, Pages 238-244Publisher
ELSEVIER
DOI: 10.1016/j.apcata.2014.07.022
Keywords
Methane dehydroaromatization (MDA); Molybdenum; Platinum; Tin; H-ZSM-5
Categories
Funding
- National Research Foundation (NRF) South Africa
- University of the Witwatersrand
Ask authors/readers for more resources
The effect of tin (0.05-s0.2 wt.%) on the dehydroaromatization of methane over Pt/Mo/H-ZSM-5 zeolite catalysts was investigated. The 2Mo/H-ZSM-5, 0.5Pt/2Mo/H-ZSM-5 and Sn-modified 0.5Pt/2Mo/H-ZSM-5 zeolite catalysts were prepared by an incipient wetness co-impregnation method and characterized by BET, XRD, H-2-TPR, NH3-TPD and TGA-DTG analysis. The addition of platinum increased methane conversion from 4 to 7% and the aromatics selectivity was 65%. A reduction of about 50% in the total amount of carbonaceous deposit occurred when platinum was added to the 2Mo/H-ZSM-5 catalyst. A decrease in methane conversion was observed (from 7.2 to 4.3%) with an increase in the tin loading (from 0.05 to 0.2 wt.%). Although the addition of tin decreased the methane conversion, the selectivity towards aromatics increased (64-83%) and a selectivity to benzene above 55% was achieved at 0.1 wt.% tin loading. The coke selectivity was reduced from 30 to 15% at low tin loadings (0.05 wt.%). (C) 2014 Elsevier B.V. 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