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

Loy ACM 1 , Gan DKW 2 , Yusup S 3 , Chin BLF 2 , Lam MK 1 , Shahbaz M 1 Show all authors , Unrean P 4 , Acda MN 5 , Rianawati E 6

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
Bioresour Technol, 2018 Aug;261:213-222.
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 (EA) and pre-exponential value (A) of the system. The EA 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 EA 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.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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