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Catalytic deoxygenation waste cooking oil into green diesel range hydrocarbons in a continuous processing over monolayered CoS-MnS supported Al2S3 catalyst
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DOI：10.1016/j.fuproc.2026.108465.png)
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Abstract
En 中文
• A bifunctional CoS–MnS/Al₂O₃ catalyst was developed for hydrogen-free continuous deoxygenation of waste cooking oil to green diesel. • Interfacial Co₃S₄–MnS–Al₂S₃ heterostructures enable tunable acidity and synergistic activation of CO bonds. • Combined XRD, XPS, EPR, NH₃-TPD and FTIR-pyridine analyses established a direct structure–acidity–pathway relationship. • Kinetic studies revealed zero-order behavior and low apparent activation energy (32.2 kJ mol−1), confirming efficient surface-controlled deoxygenation. • The catalyst showed high stability and resistance to cracking and coking under continuous hydrogen-lean operation, demonstrating strong potential for sustainable green-diesel production from waste lipids.
Keywords:
Green diesel
Heterogeneous catalyst
Deoxygenation
Nano catalyst
Metal oxide
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