Analysis of trace components in synthesis gas generated by black liquor gasification

► Trace components in black liquor derived synthesis gas was characterized. ► The synthesis gas contained benzene with average concentration of 158 ppm. ► A few ppm of C2-hydrocarbons was observed in the synthesis gas. ► Pyrene, phenanthrene and a few other tars were found in small deposits. ► The particle concentration in the synthesis gas was very low (0.1 ppm).