This study reports pyrolysis kinetics of biomass blends using isoconversional methods, viz. Friedman, FWO and KAS. Blends of three biomasses, viz. saw dust, bamboo dust and rice husk, were used. Extractives and volatiles in biomass and minerals in ash had marked influence on enhancement of reaction kinetics during co-pyrolysis, as indicated by reduction in activation energy and increase in decomposition intensity. Pyrolysis kinetics of saw dust and rice husk accelerated (positive synergy), while that of bamboo dust decelerated after blending (negative synergy). Predominant reaction mechanism of all biomass blends was 3-D diffusion in lower conversion range (α ≤ 0.5), while for α ≥ 0.5 pyrolysis followed random nucleation (or nucleation and growth mechanism). Higher reaction order for pyrolysis of blends of rice husk with saw dust and bamboo dust was attributed to catalytic effect of minerals in ash. Positive ΔH and ΔG was obtained for pyrolysis of all biomass blends.

这项研究报告了使用等转化法的生物质混合物的热解动力学。Friedman，FWO和KAS。三种生物质的混合物，即。使用了锯末，竹末和稻壳。灰分中的生物质和矿物质中的提取物和挥发物对共热解过程中反应动力学的增强具有显着影响，这通过降低活化能和增加分解强度来表明。锯末和稻壳的热解动力学加速（正协同作用），而竹尘的热解动力学在混合后减速（负协同作用）。所有生物质混合物的主要反应机理是3-D扩散在较低的转化率范围内（α≤0.5），而对于α≥0.5的热解遵循随机成核（或成核和生长机理）。稻壳与锯末和竹末的共混物热解的较高反应阶数归因于灰分中矿物质的催化作用。正ΔH和ΔG用于所有生物质混合物的热解。