Biomass Processing Lab, Centre for Biofuel and Biochemical Research, Institute of Sustainable Living, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia; Department of Chemical Engineering, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia.
Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University Malaysia, CDT 250, 98009 Miri Sarawak, Malaysia.
Bioresour Technol. 2018 Aug;261:213-222. doi: 10.1016/j.biortech.2018.04.020. Epub 2018 Apr 7.
The thermal degradation behaviour and kinetic parameter of non-catalytic and catalytic pyrolysis of rice husk (RH) using rice hull ash (RHA) as catalyst were investigated using thermogravimetric analysis at four different heating rates of 10, 20, 50 and 100 K/min. Four different iso conversional kinetic models such as Kissinger, Friedman, Kissinger-Akahira-Sunose (KAS) and Ozawa-Flynn-Wall (OFW) were applied in this study to calculate the activation energy (E) and pre-exponential value (A) of the system. The E of non-catalytic and catalytic pyrolysis was found to be in the range of 152-190 kJ/mol and 146-153 kJ/mol, respectively. The results showed that the catalytic pyrolysis of RH had resulted in a lower E as compared to non-catalytic pyrolysis of RH and other biomass in literature. Furthermore, the high Gibb's free energy obtained in RH implied that it has the potential to serve as a source of bioenergy production.
采用热重分析（TGA），在 10、20、50 和 100 K/min 四种不同加热速率下，研究了稻壳灰（RHA）作为催化剂时非催化和催化热解稻壳（RH）的热降解行为和动力学参数。本研究应用了 Kissinger、Friedman、Kissinger-Akahira-Sunose（KAS）和 Ozawa-Flynn-Wall（OFW）四种不同等转化率动力学模型来计算体系的活化能（E）和指前因子（A）。结果表明，非催化和催化热解的 RH 的 E 值分别在 152-190 kJ/mol 和 146-153 kJ/mol 范围内。结果表明，与非催化 RH 热解和文献中其他生物质相比，RH 的催化热解导致 E 降低。此外，RH 获得的高吉布斯自由能表明，它有潜力作为生物能源生产的来源。
