期刊
BIORESOURCE TECHNOLOGY
卷 261, 期 -, 页码 213-222出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.04.020
关键词
Rice husk; Rice hull ash; Thermogravimetric analysis; Catalytic pyrolysis; Kinetic parameters; Iso conversional kinetic methods
资金
- International Foundation for Science, Sweden, Stockholm, Sweden [J-1-C6035-1]
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-A) and pre-exponential value (A) of the system. The E-A 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-A 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.
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