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Abid Farooq,Surendar Moogi,장성호,KANNAPU HARI PRASAD REDDY,Soheil Valizadeh,Ashfaq Ahmed,Su Shiung Lam,박영권 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.94 No.-
Steam-gasification of linear low-density polyethylene (LLDPE) waste to hydrogen-rich gas has beenstudied systematically over nickel (10 wt.%) loaded on a variety of supports (Al2O3, CeO2, and CeO2-ZrO2)synthesized using a novel solvent deficient method (SDM). The hydrogen selectivity order of the catalystswas reported as Ni/CeO2-ZrO2>Ni/CeO2>Ni/Al2O3. The highest catalytic H2 selectivity of the Ni/CeO2-ZrO2 catalyst was reported to be76 vol.%, and was attributed to the smaller nickel crystals that werefinely dispersed on the support, and to formation of Ce1-xZrxO2-d solid solutions. The Ce1-xZrxO2-d solidsolution in the Ni/CeO2-ZrO2 catalyst was observed to be bi-functional, thus reflecting the acceleration ofthe water gas shift and the oxidation of carbon to CO and CO2. The better resistance of the Ni/CeO2-ZrO2catalyst towards coke deposition also indicated its potential for commercial-scale applications for thesteam gasification of plastics. Therefore, this research provides an advanced route to recycle LLDPE plasticwaste into hydrogen fuel, which presents both economical and environmental benefits.