Steam reforming of typical small organics derived from bio-oil: Correlation of their reaction behaviors with molecular structures

[Display omitted] •Molecular structures of organics significantly affected coking in steam reforming.•Coking in reforming of furfural and guaiacol relate to π-conjugated ring structures.•Coke from furfural/guaiacol was graphite-like and the form of nanotube.•Coke was more amorphous and disordered fr...

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