Co‐Pyrolysis of a Binary Blend of Solid Biowastes in a Fixed‐Bed Reactor for Bio‐Oil and Carbon Adsorbent Production

Abstract

AbstractThe essential objective of this work was to co‐pyrolyze a binary mixture of date and cherry seeds in a fixed‐bed reactor. The experimental variables influencing the output of products, such as the pyrolysis temperature, pyrolysis duration, particle size, and heating rate, were optimized. The maximum liquid fraction yield (55.55 % with a bio‐oil yield of 29.70 %) was attained at 500 °C for 60 min at a heating rate of 40 °C min−1 and a particle size of 0.25 mm. The Fourier transform infrared and gas chromatography‐mass spectrometry results revealed that the bio‐oil was predominantly composed of oxygenated hydrocarbons, primarily higher acids (52.05 %), esters (23.67 %), and phenols (13 %). Biochar was converted into activated carbon, which possessed a Brunaer‐Emmett‐Teller surface area of 1055.55 m2g−1. The amorphous structure of this carbon was confirmed by field emission‐scanning electron microscopy and X‐ray diffraction measurements.