Ethanol dry reforming for syngas production over Ir/CeO2 catalyst

Syngas production from CO2 reforming of ethanol over an Ir/CeO2 catalyst was investigated. Catalysts characterization was conducted by X-ray diffraction (XRD), temperature programmed reduction (TPR), transmission electron microscopy (TEM) and temperature programmed oxidation (TPO). The Ir/CeO2 catalyst was more active and stable toward syngas formation (molar ratio ∼1). The superior catalytic performance was interpreted in terms of the strong interaction between Ir particles and ceria support which was crucial for efficient ethanol/CO2 activation and coke removal on the catalyst surface.

Outlet gas compositions and ethanol conversion as a function of time-on-stream for the ethanol dry reforming over Ir/CeO2 catalyst (Fethanol/Wcat=4500 mL/(gcat·h); CO2/ethanol=1; P=1×105 Pa)Figure optionsDownload full-size imageDownload as PowerPoint slide