Green Synthesis and Application of ZSM-5 Zeolite
| Autor: | Ou Chen, Si-Cheng Liu, Pei-Qing Zhang, Shu-Qin Zheng |
|---|---|
| Jazyk: | English<br />Croatian |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Kemija u Industriji, Vol 70, Iss 3-4, Pp 121-127 (2021) |
| Druh dokumentu: | article |
| ISSN: | 0022-9830 1334-9090 40734889 |
| DOI: | 10.15255/KUI.2020.041 |
| Popis: | A ZSM-5 molecular sieve composite with a wide pore prepared by the solid phase in-situ synthesis method and fluid catalytic cracking, and an FCC catalyst additive prepared by the same ZSM-5 molecular sieve for increasing the amount of light olefin yield were investigated. The samples were characterized by XRD, N2 adsorption/desorption, SEM, and NH3-TPD, respectively. The results showed that the structure of the ZSM-5 molecular sieve composite prepared by solid phase in-situ synthesis method was pure MFI-type zeolite material. The crystallinity of ZSM-5 molecular sieve was 59.8 wt%. The synthesized ZSM-5 molecular sieve had more acid content and a wide-pore structure. The average pore size was 5.9 nm, and BET specific surface area and micropore specific surface area of sample were 213 m2 g−1 and 124 m2 g−1, respectively. The evaluated results indicated that the FCC catalyst additive had good selectivity for LPG, propylene, and butene, increasing propylene and butene yields by 2.28 wt% and 2.15 wt%, respectively, as well as had better heavy oil cracking capability and coke selectivity. |
| Databáze: | Directory of Open Access Journals |
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