Confinement of microporous MOF-74(Ni) within mesoporous γ-Al2O3 beads for excellent ultra-deep and selective adsorptive desulfurization performance.
In: Fuel Processing Technology, Jg. 176 (2018-07-01), S. 276-282
academicJournal
Zugriff:
The microporous MOF-74(Ni) was impregnated on mesoporous γ-Al 2 O 3 beads leading to successful formation of a hierarchical multiporous composite MOF-74(Ni)@γ-Al 2 O 3 containing 10 wt% MOF-74(Ni) via solvothermal method. The confinement effect introduced by the channels of γ-Al 2 O 3 beads resulted in ultrathin continuous films of MOF-74(Ni) which has significantly enhanced the surface area and surface utilization rate by ca. 16%. The composite showed excellent adsorptive desulfurization in the order of dibenzothiophene (DBT) ≈ benzothiophene (BT) > 4,6-dimethyldibenzothiophene > 3-methyl thiophene and was applied efficiently for ultra-deep adsorptive desulfurization. The 35 ppmw S concentrations of DBT and BT in model oil were decreased down to 2.30 ± 0.20 and 4.28 ± 0.31 ppmw S , respectively, with high selectivity. The reason behind excellent ultradeep desulfurization and high selectivity of S-heterocycles over aromatics is utilization of available unsaturated metal and strong metal-S bonding. In addition, the high mechanical and chemical stability of millimeter-sized composite enabled the easy recyclability with excellent efficiency and high fluidity. All the above excellency shall endow the composite to apply potentially in practical (especially ultra-deep) adsorptive desulfurization process. [ABSTRACT FROM AUTHOR]
Titel: |
Confinement of microporous MOF-74(Ni) within mesoporous γ-Al2O3 beads for excellent ultra-deep and selective adsorptive desulfurization performance.
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Autor/in / Beteiligte Person: | Zhao, Zipeng ; Zuhra, Zareen ; Qin, Libo ; Zhou, Yunshan ; Zhang, Lijuan ; Tang, Fang ; Mu, Cuncun |
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Zeitschrift: | Fuel Processing Technology, Jg. 176 (2018-07-01), S. 276-282 |
Veröffentlichung: | 2018 |
Medientyp: | academicJournal |
ISSN: | 0378-3820 (print) |
DOI: | 10.1016/j.fuproc.2018.03.037 |
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