The researchers used lignin, a byproduct of bioethanol production, to make biomass pellets along with sugarcane bagasse. By applying different pressures during pelletization, they found that higher pressure led to increased pellet density and heating value. Lignin treated with 8% NaOH showed the highest heating value at 20kN pressure. A mix of 40% sugarcane bagasse and 60% lignin1 had the highest heating value overall.