Abstract
ZSM-5/SBA-16 (ZS) composite materials with different morphologies were synthesized successfully. The series supports were utilized to prepare NiMo/ZS for dibenzothiophene (DBT) and 4,6-dimethyldibenzothiophene (4,6-DMDBT) hydrodesulfurization (HDS) reactions. Series ZS supports and NiMo/ZS were well characterized to investigate their structure–property relationship. The NiMo/ZS catalyst (NiMo/ZS-3) with uniform morphology and well-ordered pore channels showed the maximum kHDS and TOF values of DBT and 4,6-DMDBT HDS. The kHDS value (13.9 × 10–4 mol g–1 h–1) of DBT over NiMo/ZS-3 was more than 2 times greater than that over the reference NiMo/ZS-M catalyst (5.5 × 10–4 mol g–1 h–1), 3 times greater than that over the NiMo/SBA-16 catalyst (4.4 × 10–4 mol g–1 h–1), and almost 4 times greater than that over the NiMo/ZSM-5 catalyst (3.5 × 10–4 mol g–1 h–1). Furthermore, the kHDS value (8.4 × 10–4 mol g–1 h–1) of 4,6-DMDBT over NiMo/ZS-3 was more than 3 times greater than that over the reference NiMo/ZS-M catalys...
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