Aqueous phase reforming of starch wastewater over Pt and Pt-based bimetallic catalysts for green hydrogen production

This work analyses the application of aqueous phase reforming (APR) for green hydrogen production from starch industry wastewater. reports first time on direct conversion a high molecular weight biomass polymer contained in wastewater contrast to low substrates mainly reported literature. The potential this type feedstock was evaluated by varying source (rice, potato, sweet potato and cassava) catalyst (carbon supported Pt, PtRu, PtPd, PtRe PtRh catalysts). In APR experiments at 220 °C with synthetic wastewater, PtRu/C Pt/C catalysts achieved highest H2 yield values, around 51 mmol per g organic carbon initial close 2.6 times higher than that literature brewery promising substrate. lack free aldehyde or keto groups due glycosidic bonds between glucose units results gas compared glucose. fact shows has more flexibility previously light compounds. real wastewaters, matter removal influenced largely source: best performance (28.5 gTOCi−1) obtained rice processing which is characterized concentration lowest protein content. Poor observed probably deactivation caused fraction.