Comparative analysis of aromatic compounds steam reforming over Rh supported onγ-Al_(2)O_(3)  

作　　者：Marinela D.Zhurka Panagiotis N.Kechagiopoulos 

机构地区：[1]Chemical Processes&Materials Group,School of Engineering,University of Aberdeen,Aberdeen AB243UE,UK

出　　处：《Frontiers of Chemical Science and Engineering》2025年第3期51-68,共18页化学科学与工程前沿(英文版)

摘　　要：The steam reforming of bio-oil can provide a sustainable means to produce hydrogen,while tar steam reforming can significantly enhance the efficiency of the biomass gasification process.Bio-oils and tars are highly complex mixtures,and while there has been extensive research on the reforming of small oxygenates and aliphatic hydrocarbons,there have been comparatively much less studies on aromatics reforming.In the current work,we present a comparative study of the steam reforming of hydroquinone,benzyl alcohol and toluene,selected as model compounds of the aromatic fraction of bio-oils and tars with different functional groups.The effect of temperature,partial pressure of reactants,and contact time is studied over a Rh catalyst supported onγ-Al_(2)O_(3).Across the range of conditions studied,hydroquinone is found to be more reactive,followed by benzyl alcohol,and,lastly,toluene.The differences are attributed to the presence of hydroxyl groups in the case of the former two compounds,versus a methyl group in the case of toluene,effectively correlating activity with the O/C ratio in the compounds’molecule.Nonetheless,similar pathways are observed,with methane,benzene,naphthalene and toluene(during hydroquinone and benzyl alcohol reforming)detected as products in addition to carbon oxides and hydrogen.

关 键 词：HYDROQUINONE benzyl alcohol TOLUENE steam reforming hydrogen production RHODIUM 

分 类 号：O643.3[理学—物理化学]