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Rb+- and Cs+-exchanged Beta zeolites (RbxNa1−xβ and CsxNa1−xβ) of varying exchange degrees (x=0–1.00) were employed to catalyze the gas-phase dehydration of lactic acid (LA) for sustainable production of acrylic acid (AA) in a flow fixed-bed reactor at 360°C, using an aqueous solution of LA (10mol% or 35.7%) as the reaction feed at a weight hourly space velocity by LA of 2.1h−1. An appropriate window...
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