التفاصيل البيبلوغرافية
| العنوان: |
Enhanced Coke Gasification Activity of the Mn 1.5 Cr 1.5 O 4 Spinel Catalyst during Coking in Ethylene–Steam Mixtures |
| المؤلفون: |
Maxim P. Bukhovko, Lu Yang, Iman Nezam, Liwei Li, Andrzej Malek, Robert J. Davis, Pradeep K. Agrawal, Christopher W. Jones |
| سنة النشر: |
2021 |
| مصطلحات موضوعية: |
Biochemistry, Medicine, Cell Biology, Molecular Biology, Physiology, Biotechnology, Developmental Biology, Virology, Chemical Sciences not elsewhere classified, reaction conditions, outlet gas flow, coke gasification, anticoking performance, Mn 1.5 Cr 1.5 O 4 catalyst gasified, steam cracker furnaces, ethylene conversion, Enhanced Coke Gasification Activity, Mn content, thermogravimetric analysis, Mn 1.5 Cr 1.5 O 4, MnCr 2 O 4, limit coke deposition, decoking cycles, Mn 1.5 Cr 1.5 O 4 Spinel Catalyst, Mn 1.5 Cr 1.5 O 4 catalyst, coking rates, carbon oxides, coke deposition, spinel phase structure, socio |
| الوصف: |
Mn–Cr–O spinel catalysts (MnCr 2 O 4 and Mn 1.5 Cr 1.5 O 4 ) and single oxides of Mn and Cr are coked under ethylene and ethylene–steam mixtures to simulate reaction conditions occurring in steam cracker furnaces. The coking rates are measured using thermogravimetric analysis, and the Mn 1.5 Cr 1.5 O 4 catalyst displayed considerably less coke deposition (an order of magnitude) under ethylene–steam flow. Analysis of the outlet gas flow suggests the Mn 1.5 Cr 1.5 O 4 catalyst gasified the radically formed coke into carbon oxides without significantly affecting ethylene conversion. The anticoking performance of the Mn 1.5 Cr 1.5 O 4 catalyst is attributed to the presence of Mn 3+ species in the spinel phase structure that are active for coke gasification in the presence of steam. No significant changes in structure or performance are observed for the Mn 1.5 Cr 1.5 O 4 catalyst across several coking and decoking cycles. The Mn–Cr–O spinel oxide with higher Mn content is suggested to have desirable activity and stability to limit coke deposition during steam cracking. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| Relation: |
https://doi.org/10.1021/acs.energyfuels.1c00036.s001 |
| DOI: |
10.1021/acs.energyfuels.1c00036.s001 |
| الاتاحة: |
https://doi.org/10.1021/acs.energyfuels.1c00036.s001 |
| Rights: |
undefined |
| رقم الانضمام: |
edsbas.5003165B |
| قاعدة البيانات: |
BASE |