Investigating catalytic de-oxygenation of cellulose, xylan and lignin bio-oils using HZSM-5 and Fe-HZSM-5

•Detailed analysis of liquid and gaseous pyrolytic products of cellulose, hemicellulose and lignin using HZSM-5 and Fe-HZSM-5.•HZSM-5 tended to privilege the decarbonylation route, whilst Fe-HZSM-5 favoured the decarboxylation one.•Competition phenomenon: the chemical family present in majority in the oils was mostly converted by the catalysts.•Both catalysts improved aromatics production, but HZSM-5 produced more aromatics than Fe-HZSM-5.