Department of Agricultural Machinery and Technology Engineering, Faculty of Agriculture, Akdeniz University, Antalya 07058, Turkey.
Department of Environmental Engineering, Engineering Faculty, Akdeniz University, Antalya 07058, Turkey.
Molecules. 2022 Oct 14;27(20):6891. doi: 10.3390/molecules27206891.
Switchgrass earned its place globally as a significant energy crop by possessing essential properties such as being able to control erosion, low cost of production, biomass richness, and appeal for biofuel production. In this study, the impact of a Ca(OH)-assisted thermal pretreatment process on the switchgrass variety Shawnee for methane fuel production was investigated. The Ca(OH)-assisted thermal pretreatment process was optimized to enhance the methane production potential of switchgrass. Solid loading (3-7%), Ca(OH) concentration (0-2%), reaction temperature (50-100 °C), and reaction time (6-16 h) were selected as independent variables for the optimization. Methane production was obtained as 248.7 mL CH gVS under the optimized pretreatment conditions. Specifically, a reaction temperature of 100 °C, a reaction time of 6 h, 0% Ca(OH), and 3% solid loading. Compared to raw switchgrass, methane production was enhanced by 14.5%. Additionally, the changes in surface properties and bond structure, along with the kinetic parameters from first order, cone, reaction curve, and modified Gompertz modeling revealed the importance of optimization.
柳枝稷作为一种重要的能源作物，在全球范围内得到了广泛应用，其具有能够控制侵蚀、低成本生产、生物质丰富以及适合生物燃料生产等重要特性。在这项研究中，研究了 Ca(OH)辅助热预处理过程对用于甲烷燃料生产的 Shawnee 柳枝稷品种的影响。优化了 Ca(OH)辅助热预处理过程，以提高柳枝稷的甲烷生产潜力。选择固体负载（3-7%）、Ca(OH)浓度（0-2%）、反应温度（50-100°C）和反应时间（6-16 小时）作为优化的独立变量。在优化的预处理条件下，甲烷产量为 248.7 mL CH gVS。具体来说，反应温度为 100°C，反应时间为 6 小时，Ca(OH)浓度为 0%，固体负载为 3%。与原柳枝稷相比，甲烷产量提高了 14.5%。此外，从一级、锥形、反应曲线和改进的 Gompertz 模型的动力学参数来看，表面性质和键结构的变化也表明了优化的重要性。
