Abstract

This article reports a novel strategy for preparing NiMo/γ-Al2O3 ultradeep hydrodesulfurization (HDS) catalysts via thermal decomposition of layered double hydroxides (LDHs). Ni–Al–[C6H4(COO)2]2–-LDHs/γ-Al2O3 (terephthalate-pillared Ni–Al-LDHs/γ-Al2O3) composites were first obtained by in situ crystallization of Ni–Al–[C6H4(COO)2]2–-LDHs on the surface of γ-Al2O3. Then Ni–Al–Mo7O246–-LDHs/γ-Al2O3 composites were synthesized from the above composites by the anion exchange of [C6H4(COO)2]2– with Mo7O246–. Finally, bimetallic Ni–Mo/γ-Al2O3 catalysts were obtained by the subsequent decomposition of Ni–Al–Mo7O246–-LDHs/γ-Al2O3. The LDHs strategy imposes significant effects on improving the Ni/Mo dispersion with weak interaction of active metal and support and thereby greatly improves the HDS properties of the resulting catalysts. The HDS assessment results revealed that the catalyst obtained by LDHs procedure exhibits outstanding HDS activities for 4,6-dimethyldibenzothiophene and Dagang FCC diesel. The novel ...

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.