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Insights into the synergy between recyclable magnetic Fe3O4 and zeolite for catalytic aquathermolysis of heavy crude oil.
- Source :
-
Applied Surface Science . Oct2018, Vol. 456, p140-146. 7p. - Publication Year :
- 2018
-
Abstract
- Understanding the synergy between metal and zeolite for catalytic aquathermolysis harbours tremendous scientific and industrial importance. Herein, HZSM-5 is used as a model zeolite due to uniform physico-chemical structure, which is required to elucidate the intrinsic structure-performance relationship. We first devise a novel and scalable strategy to synthesize recyclable magnetic Fe 3 O 4 /HZSM-5 catalyst, which shows enhanced catalytic aquathermolysis performance compared to pure HZSM-5 catalyst. Moreover, the underlying synergy effect is then systematically elucidated by multi-techniques such as 1 H NMR, HRTEM, Py-IR, NH 3 -TPD, SARA and EL. Importantly, it is found that the change of acidity is not the dominating reason for enhanced performance. The synergy not only favors dispersion of Fe 3 O 4 nanoparticles on zeolite, but also effectively breaks C S bond and reduces the percentages of resin and asphaltene. Furthermore, the designed Fe 3 O 4 /zeolite catalyst effectively reduces the viscosity of heavy crude oil by 85.0%. This work sheds new light on the design of highly efficient heterogeneous catalysts for catalytic aquathermolysis. [ABSTRACT FROM AUTHOR]
- Subjects :
- *METALS
*ZEOLITES
*THERMOLYSIS
*PETROLEUM
*CHEMICAL structure
Subjects
Details
- Language :
- English
- ISSN :
- 01694332
- Volume :
- 456
- Database :
- Academic Search Index
- Journal :
- Applied Surface Science
- Publication Type :
- Academic Journal
- Accession number :
- 131199756
- Full Text :
- https://doi.org/10.1016/j.apsusc.2018.06.069