A Novel Synthesis Route for Highly Ordered MCM-41 Assembled from Y Zeolite Seed Colloidal and its Performance as the Support for the Catalyst

Abstract:

A novel synthesis route for a MCM-41 structure with Y zeolite seeds colloidal has been developed. The route is different from conversational method of highly ordered MCM-41 assembled from Y zeolite seed colloidal. The material was characterized by various techniques. The results indicate that the material has well-ordered hexagonal structure, with a thicker wall than that of the sample synthesized by a direct hydrothermal route (N-MCM-41). SEM images show a very uniform net-like morphology, which is different from the loose appearance of N-MCM-41. Furthermore, it has a stronger acid strength and a higher hydrothermal stability. The sample was used as the support of a Pd-Pt catalyst for the polyaromatics hydrogenation. It was demonstrated that the introduction of building units of Y zeolite enhances the activity of polyaromatics hydrogenation. It can be concluded that the pore structure and acidity of support is a key factor for the design of a sulfur tolerant noble metal catalyst for aromatics saturation of diesel.

• Periodical: Advanced Materials Research (Volumes 239-242)
• Pages: 2926-2931
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.239-242.2926
• Online since: May 2011
• Authors: Hai Juan Zhang, Wei Qiang Wang, Jiang Hong Li, Xi Wen Zhang
• Keywords: Acid Strength, Building Unit of Y Zeolite, Hydrothermal Stability, MCM-41, Polyaromatics Hydrogenation

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