Online citations, reference lists, and bibliographies.
Please confirm you are human
(Sign Up for free to never see this)
← Back to Search

Identification Of The Coke Accumulation And Deactivation Sites Of Mo2C/HZSM-5 Catalyst In CH4 Dehydroaromatization

K. Honda, X. Chen, Z. Zhang
Published 2004 · Chemistry

Save to my Library
Download PDF
Analyze on Scholarcy
Share
Abstract Identifying the preferentially coking sites of Mo 2 C/HZSM-5 catalyst in the CH 4 dehydroaromatization at non-oxidative conditions was attempted by employing a physically separable Mo 2 C/α-Al 2 O 3  + HZSM-5 mixture instead of Mo 2 C/HZSM-5 as catalyst. Photographic observation on the spent Mo 2 C/α-Al 2 O 3 and HZSM-5 components separated from the deactivated mixture and their thermogravimetric analysis clearly revealed that coke accumulation occurred predominantly on the HZSM-5. Then, the comparative activity tests with the physical blends of the deactivated Mo 2 C/α-Al 2 O 3  + HZSM-5 mixture sample with fresh Mo 2 C/α-Al 2 O 3 or HZSM-5 further confirmed that the coked HZSM-5 component in the deactivated mixture definitely deactivated while that un-coked Mo 2 C constituent remained highly active.
This paper references



This paper is referenced by
10.1016/S2095-4956(13)60001-7
Recent progress in methane dehydroaromatization: From laboratory curiosities to promising technology
Ma Shuqi (2013)
10.1016/S1003-9953(10)60178-8
Single-step thermal carburization synthesis of supported molybdenum carbides from molybdenum-containing methyl-silica
Juan Zou (2011)
10.1016/J.APCATA.2014.06.018
A clue to exploration of the pathway of coke formation on Mo/HZSM-5 catalyst in the non-oxidative methane dehydroaromatization at 1073 K
Yang Song (2014)
10.1016/J.APCATA.2016.01.044
Non-oxidative methane dehydroaromatization on Mo/HZSM-5 catalysts: Tuning the acidic and catalytic properties through partial exchange of zeolite protons with alkali and alkaline-earth cations
A. Martínez (2016)
10.1002/cctc.201800880
Progress in Developing a Structure‐Activity Relationship for the Direct Aromatization of Methane
I. Vollmer (2019)
10.1039/C7CY01789H
Relevance of the Mo-precursor state in H-ZSM-5 for methane dehydroaromatization
I. Vollmer (2018)
10.4233/UUID:96989FC0-EAFB-40C2-A622-F9F1A71FAA29
Towards activity descriptors for the methane dehydroaromatization catalyst Mo/HZSM-
I. Vollmer (2019)
10.1016/J.APCATA.2008.09.005
Preparation of highly active binder-added MoO3/HZSM-5 catalyst for the non-oxidative dehydroaromatization of methane
K. Honda (2008)
10.1016/j.cattod.2019.09.002
Kinetic modeling of methane dehydroaromatization over a Mo2C/H-ZSM5 catalyst: Different deactivation behaviors of the Mo2C and H-ZSM5 sites
Jaehun Jeong (2020)
10.1016/J.APCATA.2010.12.017
The effect of zeolite particle size on the activity of Mo/HZSM-5 in non-oxidative methane dehydroaromatization
Yanbin Cui (2011)
10.1016/BS.ACAT.2015.10.001
Zeolites and Zeotypes for Oil and Gas Conversion
E. C. Vogt (2015)
10.1201/B18075-11
New trends in catalyst design for methane dehydroaromatization
Mt Portilla (2015)
10.1016/J.FUEL.2014.08.064
Effect of Fe and Zn promoters on Mo/HZSM-5 catalyst for methane dehydroaromatization
V. Abdelsayed (2015)
10.1021/ACSCATAL.6B02497
Methane Dehydroaromatization by Mo/HZSM-5: Mono- or Bifunctional Catalysis?
N. Kosinov (2017)
10.1016/j.cej.2020.125182
Micro-kinetics of non-oxidative methane coupling to ethylene over Pt/CeO2 catalyst
David Bajec (2020)
10.1039/c8sc01263f
On the dynamic nature of Mo sites for methane dehydroaromatization† †Electronic supplementary information (ESI) available. See DOI: 10.1039/c8sc01263f
I. Vollmer (2018)
10.1016/J.CRCON.2019.07.001
Process, reactor and catalyst design: Towards application of direct conversion of methane to aromatics under nonoxidative conditions
Z. Zhang (2019)
10.1039/B810981H
Direct conversion of methane on Mo/ZSM-5 catalysts to produce benzene and hydrogen: achievements and perspectives
Z. Ismagilov (2008)
10.1039/C4CY00613E
Mechanism of Fe additive improving the activity stability of microzeolite-based Mo/HZSM-5 catalyst in non-oxidative methane dehydroaromatization at 1073 K under periodic CH4–H2 switching modes
Yuebing Xu (2014)
Semantic Scholar Logo Some data provided by SemanticScholar