Comparison of Hydrous Pyrolysis Products from Organic-Rich Sediments and Biomass

Pyrolysis experiments have been conducted on oil shale, lignite, and biomass in a 100 mL stainless-steel cylindrical reactor at 725, 825, 925, and 1025 K isothermally. The pyrolysis product distribution is strongly dependent on reactor geometry, temperature, heating rate, residence time, mass transfer velocity, and pressure. Temperature and water-to-sample ratio were pyrolysis parameters. The yield of tarry materials of Göynük oil shale and Yatağan lignite increased from 23.1 to 29.8% and 13.7 to 21.8%, respectively, while the final pyrolysis temperature was increased from 725 to 1025 K. The yield of gaseous products of Göynük oil shale, Yatağan lignite, and solid waste increased from 8.6 to 14.9%, 6.7 to 16.1%, and 23.5 to 37.0%, respectively, while the final pyrolysis temperature was increased from 725 to 1025 K. The yield of tarry materials of Göynük oil shale and Yatağan lignite increased from 21.45 to 37.5% and 11.7 to 25.8%, respectively, while the final pyrolysis water-to-sample ratio was increased from 1:1 to 5:1 at 825 K.