Dimethyl ether conversion to hydrocarbons on the closely interconnected FER@ZSM-5 nanostructures
- Authors
- Kim, Jong Jin; Jeong, Dong Jae; Jung, Hyun Seung; Hur, Young Gul; Choung, Jin Woo; Baik, Joon Hyun; Park, Myung-June; Chung, Chan-Hwa; Bae, Jong Wook
- Issue Date
- Jul-2022
- Publisher
- ELSEVIER
- Keywords
- Dimethyl ether (DME) to gasoline (DTG); FER/ZMS-5 nanostructures; Catalytic stability; Nano-composited zeolite; Alcohol additives
- Citation
- MICROPOROUS AND MESOPOROUS MATERIALS, v.340
- Journal Title
- MICROPOROUS AND MESOPOROUS MATERIALS
- Volume
- 340
- URI
- https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/152618
- DOI
- 10.1016/j.micromeso.2022.112034
- ISSN
- 1387-1811
1873-3093
- Abstract
- A superior catalyst activity and stability for dimethyl ether (DME) conversion to gasoline-range hydrocarbons (DTG) on a novel hierarchically-structured hybridized FER@ZSM-5 were verified in terms of the strong interactions of ZSM-5 on the plate-like FER nanostructures, which were prepared by alcohol additive with two organic structure-directing agent (OSDA). The highly active nanostructured FER@ZSM-5 with a propanol additive showed the closely interconnected and highly dispersed ZSM-5 aggregates on the larger plate-like FER surfaces, which were mainly responsible for the suppressed heavy coke depositions with the help of the closely interconnected ZSM-5 and FER interfaces with abundant acidic sites on 8-membered ring (8-MR) channels. The well-dispersed ZSM-5 nanoparticles on Bronsted acid sites of FER surfaces showed coke-resistant natures for DTG reaction due to the synergy effects of the strong acidic sites of the smaller ZSM-5 particles and larger Bronsted acid sites on the plate-like FER structures.
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