Shape selectivity conversion of biomass derived glycerol to aromatics over hierarchical HZSM-5 zeolites prepared by successive steaming and alkaline leaching: Impact of acid properties and pore constraint

•Steaming-alkali treatment enables production of mesoporosity with smaller-aperture.•Alkali-steaming treatment leads to a collapsion in the hierarchical structure.•Both GTA reaction and coking process are varied with HZSM-5 by different treatments.•Synergistic effect of acidity and porosity leads to high catalytic property.