Hidayat, Syarif and Iryani, Dewi Agustina and Muhammad, s and Ahmed, ashaq and Hussain, Murid and Jamil, Farrukh and Park, Young-kwon (2021) Comprehensive kinetic study of Imperata Cylindrica pyrolysis via Asym2sig deconvolution and combined kinetics. Journal of Analytical and Applied Pyrolysis, 156 (105133).
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Abstract
his study examined the non-isothermal kinetics of the slow pyrolysis of Imperata Cylindrica (IC). Pyrolysis conditions were developed under the pure N2 flow and non-isothermal conditions at the heating rates of 2.5, 5, 10, and 17.5 K/min and over the temperature range of 303–1173 K. The IC pyrolysis profiles could be identified into three parallel reactions, each of which corresponded to pseudo-hemicelluloses (P-Hem), pseudo-cellulose (PCell), and pseudo-lignin (P-Lig) decomposition. A systematic kinetic study of the pyrolysis of IC via thermogravimetric analysis (TGA) deconvolution using Asymmetric Double Sigmoidal (Asym2sig), Friedman differential iso-conversional and combined kinetics of biomass pseudo-components was carried out. The kinetics parameters of pseudo components fitted well with the pyrolysis experimental data for all the heating rates. Differential master-plots showed that the reaction mechanisms for pseudo hemicellulose (P-Hem) and pseudo cellulose (PCell) were diffusional and order based, and high order based (3rd order) for the pseudo lignin (P-Lig). Mechanism of P-Hem, P-Cell and P-Lig could be further reconstructed to Sestak and Berggren model of f(α) = α
| Item Type: | Article |
|---|---|
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Fakultas Teknik (FT) > Prodi Teknik Kimia |
| Depositing User: | Dr. Eng Dewi Agustina Iryani |
| Date Deposited: | 02 Jun 2021 01:06 |
| Last Modified: | 02 Jun 2021 01:06 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/31577 |
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