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Our research group has conducted extensive research on the semi-continuous hydrolysis of polycondensation polymers, in an effort to design chemical recycling processes for plastic waste streams that are difficult to recycle with conventional methods. In this work, we designed a novel non-catalytic semi-continuous process for the selective hydrolysis of poly(bisphenol A carbonate). Highlights of the work are the kinetic-data based reactor sizing to optimise the system in respect to total conversion and byproduct formation, and deconvolution calculations to describe the Residence Time Distribution in the reactor via indirect measurements.
Our research group has conducted extensive research on the semi-continuous hydrolysis of polycondensation polymers, in an effort to design chemical recycling processes for plastic waste streams that are difficult to recycle with conventional methods. In this work, we designed a novel non-catalytic semi-continuous process for the selective hydrolysis of polyethylene terephthalate (PET). The main highlights of the work are the stablising alkaline quench stream ensuring stable operation and simple product separation, and deconvolution calculations to demonstrate that the process limiting step is not the solubilisation of the reaction products.