Thermogravimetric kinetic modelling of in-situ catalytic pyrolytic conversion of rice husk to bioenergy using rice hull ash catalyst

Adrian Chun Minh Loy; Darren Kin Wai Gan; Suzana Yusup; Bridgid Lai Fui Chin; Man Kee Lam; Muhammad Shahbaz; Pornkamol Unrean; Menandro N Acda; Elisabeth Rianawati

doi:10.1016/j.biortech.2018.04.020

Thermogravimetric kinetic modelling of in-situ catalytic pyrolytic conversion of rice husk to bioenergy using rice hull ash catalyst

Bioresour Technol. 2018 Aug:261:213-222. doi: 10.1016/j.biortech.2018.04.020. Epub 2018 Apr 7.

Authors

Adrian Chun Minh Loy¹, Darren Kin Wai Gan², Suzana Yusup³, Bridgid Lai Fui Chin², Man Kee Lam¹, Muhammad Shahbaz¹, Pornkamol Unrean⁴, Menandro N Acda⁵, Elisabeth Rianawati⁶

Affiliations

¹ 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.
² Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University Malaysia, CDT 250, 98009 Miri Sarawak, Malaysia.
³ 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. Electronic address: drsuzana_yusuf@edu.utp.my.
⁴ National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park Paholyothin Road, Klong 1, Klong Luang, Pathum Thani 12120, Thailand.
⁵ Department of Forest Products and Paper Science, University of the Philippines Los Baños, College, Laguna 4031, Philippines.
⁶ Resilience Development Initiative, Jl. Imperial Imperial 2, No. 52, Bandung 40135, Indonesia.

PMID: 29665455
DOI: 10.1016/j.biortech.2018.04.020

Abstract

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.

Keywords: Catalytic pyrolysis; Iso conversional kinetic methods; Kinetic parameters; Rice hull ash; Rice husk; Thermogravimetric analysis.

MeSH terms

Biofuels*
Biomass
Heating
Kinetics
Oryza*
Thermogravimetry*

Substances

Biofuels