In situ catalytic pyrolysis of lignocellulose using alkali-modified amorphous silica alumina

► Alkali-modified amorphous silical alumina (ASA) catalysts are effective for bio-oil upgrading. ► Among the alkalis tested, Cs/ASA catalyst is promising for: Cracking of lignin fraction of biomass. ► Deoxygenating of substituted phenols. ► Producing hydrocarbons.