Reduced deactivation of mechanochemically delaminated hierarchical zeolite MCM-22 catalysts during 4-propylphenol cracking

Author(s)

Silva, Laura L. ; Stellato, Michael J. ; Rodrigues, Mariana V. ; Hare, Bryan J. ; Kenvin, Jeffrey C. ; Bommarius, Andreas S. ; Martins, Leandro ; Sievers, Carsten

• Document type: Journal article
• Source: JOURNAL OF CATALYSIS; v. 411, p. 6-pg., 2022-07-01.

Abstract

The delamination of MCM-22 using shear forces in a vibratory ball mill, rather than chemical surfactants and sonication, is illustrated. The resulting material has comparable or improved physical properties compared to chemically delaminated MCM-22 without a significant loss of acid sites. The mechanical treatment affected the initial rate of 4-propylphenol cracking to phenol and propylene, a model reaction for lignin-derived aromatics, much less than chemical delamination. It also shows improved deactivation resistance for this reaction known to experience fast deactivation by pore blockage. CO 2022 Elsevier Inc. All rights reserved. (AU)

• FAPESP's process: 17/21965-5 - Synthesis and catalytic uses of embryonic zeolites possessing acidic ou basic sites
• Grantee: Laura Lorena da Silva
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 18/20670-4 - MFI and FAU embryonic embryonic zeolites: synthesis and catalytic properties
• Grantee: Laura Lorena da Silva
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• FAPESP's process: 18/01258-5 - Novel chemical catalytic and photocatalytic processes for the direct conversion of methane and CO2 to products
• Grantee: José Maria Correa Bueno
• Support Opportunities: Research Projects - Thematic Grants