Optimization of Biochar Yield from Sweet Corn Residue Through Slow Pyrolysis Using Response Surface Methodology
Keywords:
Biochar, Slow Pyrolysis, Experimental Design, Response Surface Methodology, OptimizationAbstract
This research aimed to optimize the biochar production process from sweet corn residues through slow pyrolysis. The experimental design was based on the Box-Behnken Design (BBD) to evaluate the effects of pyrolysis temperature, heating rate, and holding time on the biochar yield. The experimental data were analyzed using Response Surface Methodology (RSM) to develop a quadratic model. The results indicated that pyrolysis temperature had a significantly negative impact on %Yield, and significant interactions among the three factors were also observed. Numerical optimization revealed that the highest predicted yield of 49.2% could be achieved at 300 °C, 2 °C/min heating rate, and 2 hours holding time. The model’s reliability was confirmed by additional randomized experiments, with an average absolute deviation of only 1.97%.
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