Exploring the Effect of Hierarchical Porosity in BEA Zeolite in Friedel-Crafts Acylation of Furan and Benzofuran

被引：7

作者：

Nunes, Nelson ^{[1
,2
]}

Carvalho, Ana P. ^{[2
,3
]}

Elvas-Leitao, Ruben ^{[1
,2
]}

Martins, Filomena ^{[2
,3
]}

Fernandes, Auguste ^{[4
]}

Rocha, Joao ^{[5
,6
]}

Martins, Angela ^{[1
,2
]}

机构：

[1] Inst Politecn Lisboa, Inst Super Engn Lisboa, Dept Engn Quim, Rua Conselheiro Emidio Navarro, P-1959007 Lisbon, Portugal

[2] Univ Lisbon, Fac Ciencias, Ctr Quim Estrutural, Inst Mol Sci, Ed C8, P-1749016 Lisbon, Portugal

[3] Univ Lisbon, Fac Ciencias, Dept Quim & Bioquim, Ed C8, P-1749016 Lisbon, Portugal

[4] Univ Lisbon, Ctr Quim Estrutural, Inst Mol Sci, Inst Super Tecn, Ed C8, P-1749016 Lisbon, Portugal

[5] Univ Aveiro, Dept Quim, P-3810193 Aveiro, Portugal

[6] Univ Aveiro, CICECO, P-3810193 Aveiro, Portugal

来源：

CATALYSTS | 2022年 / 12卷 / 09期

关键词：

hierarchical BEA; Friedel-Crafts acylation; furan; benzofuran; kinetic modelling; QSPR analysis; FINE CHEMICALS SYNTHESIS; SOLID SOLVENTS; ACETYLATION; CATALYSTS; ANISOLE; DESILICATION; PERFORMANCE;

D O I：

10.3390/catal12091064

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Hierarchical BEA zeolite was prepared through desilication or desilication followed by acid treatment. The catalytic performance of BEA zeolite samples was evaluated using Friedel-Crafts acylations with two substrates of different molecular sizes, furan (5.7 angstrom) and benzofuran (6.9 angstrom), in the presence of acetic anhydride as acylating agent. The application of the simplified Langmuir-Hinshelwood kinetic model showed that the size of the substrate leads to different catalytic activities, with improved rate constant and turnover frequency (TOF) solely in the presence of benzofuran for both desilicated and further acid treated samples. The mesopores developed during the zeolite treatments have an important role as transportation channels by reducing diffusion limitations. The application of Quantitative Structure-Property Relationships (QSPR) allowed the finding of the most relevant properties of the zeolite and substrate with impact on the catalytic parameters.

引用

页数：13