TAILIEUCHUNG - Study on kinetics of pyrolysis reaction (degradation) of rice husk, corn cob and sugarcane bagasse as agricultural residues in Vietnam
The results show that, the average activation energy of rice husk is lower than activation energy of acacia wood. The average activation energies of corn cob and sugarcane bagasse are higher than that of acacia wood thermal degradation. This result has important role in the reactor design for using agricultural residue to generate power such as pyrolysis or gasification. | Vietnam Journal of Science and Technology 55 (4) (2017) 436-442 DOI: STUDY ON KINETICS OF PYROLYSIS REACTION (DEGRADATION) OF RICE HUSK, CORN COB AND SUGARCANE BAGASSE AS AGRICULTURAL RESIDUES IN VIETNAM Dinh Quoc Viet1, 3, *, Van Dinh Son Tho1, 2 1 School of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet, Hanoi 2 Vietnam Japan International Institute of Science for Technology, Hanoi University of Science and Technology, 1 Dai Co Viet, Hanoi 3 Faculty of Chemistry, QuyNhon University, 170 An Duong Vuong, Quy Nhon, Binh Dinh * Email: dinhquocviet@ Received: 17 December 2016; Accepted for publication: 17 June 2017 ABSTRACT The thermal degradation of the agricultural residue species such as rice husk (RH), corn cob (CC) and sugarcane bagasse (SGB) in the inert atmosphere has been studied by thermogravimetric analysis (TGA). Parameters of the reaction kinetics of biomass pyrolysis were calculated using Flynn-Wall-Ozawa method (FWO) and compared with acacia wood’s one. The results show that, the average activation energy of rice husk is lower than activation energy of acacia wood. The average activation energies of corn cob and sugarcane bagasse are higher than that of acacia wood thermal degradation. This result has important role in the reactor design for using agricultural residue to generate power such as pyrolysis or gasification. Keywords: thermo-gravimetric, rice husk, corn cob, sugarcane bagasse, activated energy. 1. INTRODUCTION In the last decades, large study was dedicated world-wide to the getting back of energy from renewable fuels. Biomass is an alternative and renewable energy source, abundantly available worldwide. Biomass includes three main components such as hemicellulose, cellulose and lignin with traces of minerals and extractives, which exist in the range of 19 – 25 %, 32 45 % and 14 – 26 % (by weight), respectively [1]. The percentage of these constituents varies from .
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