Journal
CATALYSIS TODAY
Volume 356, Issue -, Pages 3-10Publisher
ELSEVIER
DOI: 10.1016/j.cattod.2020.03.001
Keywords
Ethane; Aromatization; Microwave; Mo-Fe/ZSM-5
Funding
- West Virginia Higher Education Policy Commission [HEPC.dsr.18.7]
- National Energy Technology Laboratory, Morgantown, WV
- Oak Ridge Institute for Science and Education, Oak Ridge, TN
- AIChE RAPID [DE-EE0007888-6.7]
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The reaction mechanism of ethane conversion over 4 % Mo-0.5 % Fe/ZSM-5 catalyst was investigated using two different reactors with different heating modes. A microwave fixed-bed reactor (MWFB) was used and its performance was compared to a conventional thermal fixed-bed reactor (CTFB). Over 80 % ethane conversion was achieved under microwave irradiation mode at 375 degrees C. To achieve the same ethane conversion conventionally, the reaction temperature had to be elevated to 660 degrees C in the CTFB. The formation rates and selectivity of the products were compared under these two heating methods. The CTFB products had a higher selectivity towards aromatic compounds; whereas, the MWFB products had a higher selectivity towards ethylene; 26.5 % higher than the CTFB. Carbon analysis over spent catalysts of CTFB showed three distinct types of coke, whereas the microwave resulted in a single higher temperature coke type.
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