دورية أكاديمية
Coke Mechanism of Hollow Capsule Mo/HZSM-5 During Methane Dehydroaromatization
| العنوان: | Coke Mechanism of Hollow Capsule Mo/HZSM-5 During Methane Dehydroaromatization |
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| المؤلفون: | Xinqi ZHANG, Xin HUANG, Kai WANG, Xi JIAO, Zhixin JIN |
| المصدر: | Taiyuan Ligong Daxue xuebao, Vol 54, Iss 6, Pp 988-996 (2023) |
| بيانات النشر: | Editorial Office of Journal of Taiyuan University of Technology, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Chemical engineering LCC:Materials of engineering and construction. Mechanics of materials LCC:Technology |
| مصطلحات موضوعية: | methane dehydroaromatization, hollow capsule zeolite, coking, deactivation, isotope labelling, Chemical engineering, TP155-156, Materials of engineering and construction. Mechanics of materials, TA401-492, Technology |
| الوصف: | Purposes Methane dehydroaromatization (MDA) is a frontier topic in the field of natural gas chemical industry. Methods Mo/commercial-HZSM-5, Mo/nano-HZSM-5, and Mo/hollow capsule HZSM-5 were synthesized by using a conventional wet impregnation strategy. The samples were characterized by ICP, XRD, BET, SEM, TEM, NH3-TPD, and XPS, and tested in MDA reaction. The properties of carbonaceous species were measured by TG and TPO techniques. The carbon cycle path was investigated through periodic 12CH4/13CH4 isotope switch pulse experiment over Mo/hollow capsule HZSM-5 catalyst during MDA reaction. Findings The active carbonaceous species located inside the pores could take part in the formation of benzene. Among these three Mo-based catalysts, the Mo/hollow capsule HZSM-5 showed higher CH4 conversion and aromatic yield, as well as superior catalytic lifespan. Compared to Mo/nano-HZSM-5 in zeolite particle size and acidity, Mo/hollow capsule HZSM-5 with lower deactivation rate is attributed enhanced gas molecules diffusion in its hollow capsule structure. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Chinese |
| تدمد: | 1007-9432 |
| Relation: | https://tyutjournal.tyut.edu.cn/englishpaper/show-2138.html; https://doaj.org/toc/1007-9432 |
| DOI: | 10.16355/j.tyut.1007-9432.2023.06.004 |
| URL الوصول: | https://doaj.org/article/2bc44922fa3b4ae59523ab83ce1d54bd |
| رقم الأكسشن: | edsdoj.2bc44922fa3b4ae59523ab83ce1d54bd |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 10079432 |
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| DOI: | 10.16355/j.tyut.1007-9432.2023.06.004 |