We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Methanol to Aromatic Reaction over HZSM-5: Co-Effect Desilication and SiO2 Deposition.
- Authors
Hui Li; Dong, Peng; Ji, Dong; Zhao, Xinhong; Li, Chunqiang; Li, Guixian
- Abstract
In this work Si/HZSM-5-0.09M catalyst was prepared using desilication and regrowth of SiO2 method, which was characterized by XRF, XRD, SEM, NH3-TPD, and N2 adsorption/desorption. Meanwhile, the structure–activity relationship was comprehensively discussed. The results revealed that the aromatics total selectivity of Si/HZSM-5-0.09M catalyst was significantly improved, from 33 to 54.8% compared to HZSM-5 under the optimal conditions. Also, the selectivity of p-xylene over Si/HZSM-5-0.09M catalyst increased from 4.6 to 19.8% compared to HZSM-5. The total selectivity of benzene, toluene, and xylene over Si/HZSM-5-0.09M catalyst was significantly improved by 66.1% compared to that of HZSM-5. Thus, an excellent catalytic effect has been found, which indicates that the SiO2 deposition on the surface favors the enhancement of the p-xylene selectivity in the methanol aromatization reaction.
- Subjects
STRUCTURE-activity relationships; CATALYST selectivity; METHANOL; P-Xylene; AROMATIZATION
- Publication
Kinetics & Catalysis, 2021, Vol 62, Issue 3, p418
- ISSN
0023-1584
- Publication type
Article
- DOI
10.1134/S0023158421030058