Design of Highly Selective Catalytic Oxidation Process System by Using Environmental Friendly Oxidant

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β-Zeolite indicated the highest activity and selectivity for the corresponding ester formation, even though the acid strength of β-zeolite is weakest. Weak acid sites in zeolites are expected to be an active site for BV oxidation with H_2O_2. Higher activity was observed on Sn-supported in BEA than that in MFI. BEA structure is suggested to be favorable for the BV oxidation. Enhancement of the activity and selectivity was tried by using a semi-batch reaction system for the BV oxidation with H_2O_2 aqueous solution as the oxidant. Both activity and selectivity were enhanced by using the semi-batch reaction system. The semi-batch reaction system reduces the poisoning by water molecules in the BV oxidation.