| Title | Optimization of Briquette Fuels by Co-Torrefaction of Residual Biomass and Plastic Waste Using Response Surface Methodology |
|---|---|
| ID_Doc | 27795 |
| Authors | Guo, S; Liu, LD; Zhao, D; Zhao, CC; Li, XC; Li, GY |
| Title | Optimization of Briquette Fuels by Co-Torrefaction of Residual Biomass and Plastic Waste Using Response Surface Methodology |
| Year | 2023 |
| Published | Molecules, 28.0, 6 |
| Abstract | Combining biomass, a clean and renewable energy source, with waste plastic, which serves as a good auxiliary fuel, can produce high-quality clean fuel. The performance of biomass-derived fuel can be improved by torrefaction. This study optimized the co-torrefaction of fungus bran and polypropylene (PP) waste plastic to obtain clean solid biofuel with high calorific value and low ash content (AC) using response surface methodology. Two sets of mixed biochars were investigated using a multiobjective optimization method: mass yield-higher heating value-ash content (MY-HHV-AC) and energy yield-ash content (EY-AC). PP increased the heat value, decreased AC, and acted as a binder. The optimal operating conditions regarding reaction temperature, reaction time, and PP blending ratio were 230.68 degrees C, 30 min, and 20%, respectively, for the MY-HHV-AC set and 220 degrees C, 30 min, 20%, respectively, for the EY-AC set. The MY-HHV-AC set had properties close to those of peat and lignite. Furthermore, compared with that of the pure biochar, the AC of the two sets decreased by 15.71% and 14.88%, respectively, indicating that the prepared mixed biochars served as ideal biofuels. Finally, a circular economy framework for biobriquette fuel was proposed and prospects for preparing pellets provided. |
| https://www.mdpi.com/1420-3049/28/6/2568/pdf?version=1678687933 |
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