Abstract In the present study, pyrolysis kinetics of the pure and blends of cedar wood (CW), algal biomass (AB), and digested sludge (DS) with and without the catalyst ZSM–5 were examined. Both Kissinger-Akahira-Sunose (KAS) and Flynn-Wall-Ozawa (FWO) model-free methods were used to calculate the total activation energy (Ea), change in enthalpy (ΔH), and change in Gibb’s free energy (ΔG) of 18 different biomass combinations. The highest Ea (548.52 kJ/mol) and ΔH (532.22 kJ/mol) were found for the CW. The biomass blend of AB: CW at weight ratios of 2:1 with catalyst (2:1 catalyst to biomass weight ratio) resulted in the lowest Ea (57.03 kJ/mol) and ΔH (50.11 kJ/mol) with a ΔG value of 243.25 kJ/mol. Statistically significant response surface models were developed to describe the effect of biomass blend composition on Ea and ΔH. This study demonstrated that catalytic pyrolysis of biomass blends from different sources can be used to significantly reduce the energy requirement for the process.

中文翻译：

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微藻、城市污泥和雪松木共热解的动力学研究

摘要 在本研究中，研究了雪松木 (CW)、藻类生物质 (AB) 和消化污泥 (DS) 的纯和混合物在有和没有催化剂 ZSM-5 的情况下的热解动力学。Kissinger-Akahira-Sunose (KAS) 和 Flynn-Wall-Ozawa (FWO) 无模型方法均用于计算总活化能 (Ea)、焓变化 (ΔH) 和吉布自由能 (ΔG) 变化18 种不同的生物质组合。发现 CW 的最高 Ea (548.52 kJ/mol) 和 ΔH (532.22 kJ/mol)。AB：CW 与催化剂的重量比为 2:1（催化剂与生物质重量比为 2:1）的生物质混合物导致最低的 Ea（57.03 kJ/mol）和 ΔH（50.11 kJ/mol），ΔG 值为243.25千焦/摩尔。开发了具有统计学意义的响应面模型来描述生物质混合成分对 Ea 和 ΔH 的影响。