金属（钌/铁）浸渍香蕉假茎（Musa acuminate）的热重和动力学研究。
Thermogravimetric and kinetic studies of metal (Ru/Fe) impregnated banana pseudo-stem (Musa acuminate).
机构信息
Department of Chemical Engineering, Indian Institute of Technology Roorkee, Uttarakhand, India.
Department of Chemical Engineering, Indian Institute of Technology Roorkee, Uttarakhand, India.
出版信息
Bioresour Technol. 2019 Aug;285:121318. doi: 10.1016/j.biortech.2019.121318. Epub 2019 Apr 4.
Pyrolysis/gasification have proved to be promising conversion techniques to convert biomass into fuels. The current research work focuses on impregnation of Ru and Fe into banana pseudo-stem to study kinetics, pyrolytic behaviour and their impact during pyrolysis through thermogravimetric analyser (TGA). Samples weight loss were analyzed by TGA at four different heating rates (5-20 °C min) over the temperature range of 30-900 °C. Isoconversional models such as Flynn-Wall-Ozawa (FWO), Kissinger-Akahira-Sinose (KAS), and Kissinger's methods were employed to calculate the activation energy and pre-exponential factor for Ru-impregnated (FWO: E = 73.32 kJ mol, KAS: E = 68.23 kJ mol and Kissinger's: E = 165.94 kJ mol) Fe-impregnated biomass (FWO: E = 86.78 kJ mol, KAS: E = 82.34 kJ mol and Kissinger's: E = 192.37 kJ mol) and compared with raw biomass (FWO: E = 116.22 kJ mol, KAS: E = 113.39 kJ mol and Kissinger's: E = 194.86 kJ mol). Lower activation energy and reduced weight loss were observed for metal impregnated biomass over the raw biomass.
热解/气化已被证明是一种很有前途的转化技术，可以将生物质转化为燃料。目前的研究工作集中在将 Ru 和 Fe 浸渍到香蕉假茎中，通过热重分析仪（TGA）研究动力学、热解行为及其在热解过程中的影响。在 30-900°C 的温度范围内，通过 TGA 在四个不同的加热速率（5-20°C/min）下分析样品的失重。采用 Flynn-Wall-Ozawa（FWO）、Kissinger-Akahira-Sinose（KAS）和 Kissinger 等等转化率模型来计算 Ru 浸渍（FWO：E=73.32 kJ/mol，KAS：E=68.23 kJ/mol 和 Kissinger 的：E=165.94 kJ/mol）Fe 浸渍生物质（FWO：E=86.78 kJ/mol，KAS：E=82.34 kJ/mol 和 Kissinger 的：E=192.37 kJ/mol）和原始生物质（FWO：E=116.22 kJ/mol，KAS：E=113.39 kJ/mol 和 Kissinger 的：E=194.86 kJ/mol）的活化能和指前因子，并进行了比较。与原始生物质相比，金属浸渍生物质的活化能较低，失重减少。
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