【摘 要】
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In this work,we report for the first time the in-situ catalytic pyrolysis of Pavlova sp.microalgae,which has been performed in a fixed-bed reactor in presence of Ce/Al2O3-based catalysts.The effects of pyrolysis parameters,such as temperature and catalyst
【机 构】
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Institute of Mechanical, Process and Energy Engineering(IMPEE), Heriot-Watt University, EH14 4AS Edi
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In this work,we report for the first time the in-situ catalytic pyrolysis of Pavlova sp.microalgae,which has been performed in a fixed-bed reactor in presence of Ce/Al2O3-based catalysts.The effects of pyrolysis parameters,such as temperature and catalyst were studied on the products yield distribution and biooil composition,among others.Results showed that all catalysts increased the bio-oil yield with respect to the non-catalytic runs and reduced the O/C ratio from 0.69 (Pavlova sp.) to 0.1-0.15,which is close to that of crude oil,In terms of bio-oil oxygen content,MgCe/Al2O3 presented the best performance with a reduction of more than 30％,from 14.1 to 9.8wt％,of the oxygen concentration in comparison with thermal pyrolysis.However,NiCe/Al2O3 gave rise to the highest aliphatics/aromatics fractions.The elemental and gas analysis indicates that N was partially removed from the catalytic bio-oils in the gas phase in forms of NH3 and HCN.
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