Tsinghua University-University of Waterloo Joint Research Center for Micro/Nano Energy & Environment Technology, Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Beijing Key Laboratory of CO(2) Utilization and Reduction Technology, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, PR China.
Tsinghua University-University of Waterloo Joint Research Center for Micro/Nano Energy & Environment Technology, Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Beijing Key Laboratory of CO(2) Utilization and Reduction Technology, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, PR China; School of Energy Science and Engineering, Harbin Institute of Technology, Heilongjiang 150001, PR China.
Bioresour Technol. 2020 Jul;307:123243. doi: 10.1016/j.biortech.2020.123243. Epub 2020 Mar 23.
The co-pyrolysis behavior of plastic (PP) with six biomass components (cellulose, hemicellulose, lignin, carbohydrate, lipid, protein) was studied by thermogravimetry. The overlap ratio (OR) and the difference in experimental and theoretical weight loss (ΔW) are defined. The results demonstrated that the interaction of lignin and PP was notable with the OR of 0.9661. From ΔW, it was found that the number of solid residues of hemicellulose-PP and lignin-PP decreased by 1.10% and 2.60%, respectively, which was caused by the hydrogenation reaction between the monomers generated by PP and biochar. The DTG peak shift in co-pyrolysis was further studied. By blending with the biomass, the pyrolysis peaks of PP shifted to the high-temperature region and the value was positively correlated with the fixed carbon content in the biomass components. Kinetic analysis revealed that by co-pyrolysis with biomass, the activation energy of the PP decomposition could be reduced by 39.51% -62.71%.
采用热重法研究了塑料（PP）与 6 种生物质成分（纤维素、半纤维素、木质素、碳水化合物、脂类、蛋白质）的共热解行为。定义了重叠比（OR）和实验与理论失重的差值（ΔW）。结果表明，木质素与 PP 的相互作用显著，OR 为 0.9661。从ΔW 发现，半纤维素-PP 和木质素-PP 的固体残留物数量分别减少了 1.10%和 2.60%，这是由于 PP 和生物炭产生的单体之间发生了加氢反应。进一步研究了共热解中的 DTG 峰位移。通过与生物质共混，PP 的热解峰向高温区移动，且该值与生物质成分中的固定碳含量呈正相关。动力学分析表明，通过与生物质共热解，PP 分解的活化能可降低 39.51% -62.71%。
