Identifikasi Efek Heating Rate terhadap Laju Kinetika Reaksi Pirolisis Kayu Mahoni dengan Thermal Analysis dan Termogravimetry


  • Widya Wijayanti Brawijaya University



Pyrolysis, Heating Rate, Thermal Analysis, Termogravimetry


The study was conducted to investigate the biomass pyrolysis using mahogany wood as the feedstock. Chemically, mahogany wood contained complex biomass compounds, consisting of cellulose, hemicellulose, and lignin. Each biomass compound had its degradation at a certain temperature. Therefore, their compounds will be pyrolyzed at some different temperatures to understand the certain one. In the experiment, the biomass was hydrolyzed based on the temperature differences from room temperature to a temperature around 1000ºC (1273 K). We identified pyrolysis kinetic rate and measured some appropriate pyrolysis temperatures to accomplish the pyrolysis process. Afterward, the investigation of its thermal degradation used Thermal Analysis and Thermogravimetric (TGA) analysis. It would be obtained the estimation of energy needed to obtain a mathematical equation determined by the dependencies of the pyrolysis temperature by using LINSEIS STA Platinum Series. The mathematical equation was gained by using the temperature difference profiles (differential thermal analysis-DTA) and the biomass weight loss (difference thermogravimetry-DTG) by means of TGA. It was measured under the inert condition without Oxygen at the heating rate of 400°C/h and 800°C/h. By using order-1 differential equations, the activation energy, and pre-exponential factors also were determined in the mathematical equation of the kinetic reaction rate equation as k1 = 7.9033  for a heating rate of 400°C/h and k2 = 9.7745  for heating rate 800°C/h.


BO WANG, FANFAN XU, PEIJIE ZONG, JINHONG ZHANG, YUANYU TIAN, YINGYUN QIAO, "Effects of heating rate on fast pyrolysis behavior and product distribution of Jerusalem artichoke stalk by using TG-FTIR and Py-GC/MSâ€, Renewable Energy, V. 132, pp 486-496, March 2019

MOHAMMAD-SAEED SAFDARI, ELHAM AMINI, DAVID R. WEISE, THOMAS H. FLETCHER, “Heating rate and temperature effects on pyrolysis products from live wildland fuelsâ€, Fuel, V. 242, pp 295-304, 15 April 2019

AYHAN DEMIRBAS, “Pyrolysis of ground beech wood in irregular heating rate conditionsâ€, Journal of Analytical and Applied Pyrolysis, V. 73, n. 1, pp 39-43, March 2005

TOSHIYUKI IWASAKI, SEIICHI SUZUKI, TOSHINORI KOJIMA, “Influence of Biomass Pyrolysis Temperature, Heating Rate and Type of Biomass on Produced Char in a Fluidized Bed Reactorâ€, Energy and Environment Research, V. 4, n. 2; 2014

JIANQIAO WANG, BOXIONG SHEN, DONGRUI KANG, PENG YUAN, CHUNFEI WU, “Investigate the interactions between biomass components during pyrolysis using in-situ DRIFTS and TGAâ€, Chemical Engineering Science, V. 195, pp 767-776, 23 February 2019

WIJAYANTI, W., TANOUE, K, SUETOMI, “Rule of thumb for simulating biomass pyrolysis in packed bed reactorâ€, 11th AIChE Annual Meeting, Boston University, 16-21 October, 2011

RH MUHDHOR, W WIJAYANTI, K ANAM, “Pengaruh Temperatur Pirolisis Terhadap Kualitas Dan Kinetic Rate Char Hasil Pirolisis Serbuk Kayu Mahoniâ€, Jurnal Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya, 2013

W WIJAYANTI, K TANOUE, “Char formation and gas products of woody biomass pyrolysisâ€, Energy Procedia 32, pp. 145-152, 2013

JORGE IVÃN MONTOYA, FARID CHEJNE-JANNA, MANUEL GARCIA-PÉREZ, “Fast pyrolysis of biomass: A review of relevant aspects. Part I: Parametric study (Pirólisis rápida de biomasas: Una revisión de los aspectos relevantes. Parte I: Estudio paramétrico)â€, DYNA, V. 82, n. 192, pp. 239-248, 2015

KATARZYNA SLOPIECKA, PIETRO BARTOCCI, FRANCESCO FANTOZZI, â€Thermogravimetric analysis and Kinetic study of poplar wood pyrolisisâ€, Applied Energy, V. 97, pp 491-497, September 2012

CHAIWAT, W., HASEGAWA, I., TANI, T., SUNAGAWA, K. and MAE, K., “Analysis of cross-linking behavior during pyrolysis of cellulose for elucidating reaction pathwayâ€, Energy & Fuels, V. 23, n. 12 , pp. 5765-5772, 2009

AGARWAL, V., DAUENHAUER, P.J., HUBER, G.W. and AUERBACH, S.M., “Ab initio dynamics of cellulose pyrolysis: Nascent decomposition pathways at 327 and 600 °Câ€, J. Am. Chem. Soc., V. 134 (36), pp. 14958-14972, 2012

F MAJEDI, W WIJAYANTI, N HAMIDI, “Parameter Kinetik Char Hasil Pirolisis Serbuk Kayu Mahoni (Switenia Macrophylla) dengan Variasi Heating Rate dan 1 Temperaturâ€, Rekayasa Mesin 6 (1), 1-7, 2015