Synthesis of MCM-41-HY Composite Molecular Sieves and Their Application to Deep Hydrodesulfurization

Chem. J. Chinese Universities

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Synthesis of MCM-41-HY Composite Molecular Sieves and Their Application to Deep Hydrodesulfurization

REN Jing¹, WANG An-Jie^1,2, LI Xiang^1,2, CAO Guang-Wei¹, LU Mo-Hong¹, HU Yong-Kang^1,2

1. State Key Laboratory of Fine Chemicals,
2. Liaoning Key Laboratory of Petroleum Technology and Equipments, Dalian University of Technology, Dalian 116012, China

Received:2006-01-03 Revised:1900-01-01 Online:2006-12-10 Published:2006-12-10
Contact: WANG An-Jie

Abstract

Abstract: MCM-41-HY composite molecular sieves were synthesized hydrothermally, and characterized by means of XRD, N₂ adsorption and SEM. A comparison was made between the mechanical mixture of MCM-41 and HY, and the synthesized MCM-41-HY composite molecular sieves as the hydrodesulfurization(HDS) catalyst support. Both exhibit excellent activities in the HDS hydrodesulfurization of dibenzothiophene, but, the composite shows a much lower hydrocracking activity than the mechanical mixture. It is proposed that the lower hydrocracking activity of MCM-41-HY composite molecular sieves may be attributed to the bimodal structure in which HY zeolite is wrapped by the mesoporous MCM-41.

Key words: Composite molecular sieves, MCM-41, Synthesis, Hydrodesulfurization, HY zeolite

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REN Jing¹, WANG An-Jie^1,2, LI Xiang^1,2, CAO Guang-Wei¹, LU Mo-Hong¹, HU Yong-Kang^1,2

. Synthesis of MCM-41-HY Composite Molecular Sieves and Their Application to Deep Hydrodesulfurization[J]. Chem. J. Chinese Universities, doi: .

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Synthesis of MCM-41-HY Composite Molecular Sieves and Their Application to Deep Hydrodesulfurization

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