(544ed) Analysis of Kinetics in the Ring-Opening Reaction and Decarboxylation of ?-Valerolactone and Pentenoic Acids over Zeolite Catalysts
The aim of this study is to understand the thermochemistry and reaction kinetics that govern both ring opening and decarboxylation. In particular, we are interested in determining whether changes in the pore structure of various amorphous and crystalline aluminosilicates has an impact on macroscopically observable reactivity. We have previously obtained extensive kinetic data on GVL ring opening and decarboxylation over amorphous silica alumina, and the current study expands our consideration of these kinetics over various zeolites. Specifically, production distributions and species production rates are measured over a variety of MFI, BEA, FAU, and FER zeolites. This has generated a robust data set, which is subsequently used to regress various microkinetic parameters that describe the elementary kinetics of ring opening and decarboxylation. By comparing variation in elementary kinetic parameters over various aluminosilicates, we try to figure out the link between reactivity in GVL/PEA interconversion and decarboxylation and catalyst structure.