Regeneration, MDA, Mo carbide, zeolite, aromatic, coke

https://doi.org/10.22146/ajche.50107

Chandra Mohan Sinnathambi(1*)

(1) Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, 31750 Tronoh, Perak, Malaysia
(*) Corresponding Author

Abstract


Methane dehydro-aromatization (MDA) is a one-step conversion of methane to aromatics under non-oxidative condition in the presence of Mo-modified HZSM-5. The main drawback of MDA reaction is the rapid deactivation of the Mo carbide catalyst by coking. For catalyst stability and efficiency, a suitable and economical catalytic regeneration system is necessary. The present study investigates the regainability of catalyst activity by in-situ regeneration of spent 3wt% -Mo/HZSM-5 catalyst in air. Encouraging results is observed when 5% oxygen at a GHSV of 4800h-1 over 1 hour was used. The main drawback is coke is favored over aromatic product.

Keywords


Regeneration, MDA, Mo carbide, zeolite, aromatic, coke.

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DOI: https://doi.org/10.22146/ajche.50107

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ASEAN Journal of Chemical Engineering  (print ISSN 1655-4418; online ISSN 2655-5409) is published by Chemical Engineering Department, Faculty of Engineering, Universitas Gadjah Mada.