Co-Pyrolysis Upgrading of High-Ash Biogas Residue with Lignocellulosic Biomass: Synergistic Kinetics, Energy Enhancement, and EBC-Compliant Biochar Production
High-ash biogas residue exhibits low reactivity and yields mineral-rich char with limited fuel quality under mono-pyrolysis. This study investigated the macro-isothermal co-pyrolysis of swine digestate (SD) with spent coffee grounds (SCG) or rice husk (RH) at a fixed 50:50 mass ratio using a custom thermogravimetric sy...