The pyrolysis of lipid-extracted residue of Tribonema minus in a fixed-bed reactor

Abstract The pyrolysis of lipid-extracted residue of Tribonema minus has been performed in a fixed-bed reactor. In this paper the influence of nitrogen flow rate and pyrolysis temperature on products yields and composition were investigated. The maximum liquid yield of 29.82 wt.% was obtained at 450 °C with 50 ml min −1 nitrogen flow rate. The major compounds of liquid product from microalgae were carbonyls, hydrocarbons and nitrogenous compounds with a high proportion of oxygen. CO 2 and CO were the main compositions of gas and their contents changed with pyrolysis temperature. The comparison of product yields and properties was made among lipid-extracted residue of T. minus, reeds and woody chips pyrolyzed under similar conditions. The liquid product from microalgal residue contained more alkane/alkene and less aromatics than that from lignocellulose biomass.