Determination of Kinetic and Thermodynamic Parameters of Pyrolysis of Coal and Sugarcane Bagasse Blends Pretreated by Ionic Liquid: A Step towards Optimization of Energy Systems

Saad Saeed, Mahmood Saleem, Abdullah Durrani, Junaid Haider, Muzaffar Riaz, Sana Saeed, Muhammad Abdul Qyyum, Abdul-Sattar Nizami, Mohammad Rehan and Moonyong Lee
Additional contact information
Saad Saeed: Department of Chemical Engineering, NFC Institute of Engineering & Technology, Multan 60000, Pakistan
Mahmood Saleem: Institute of Chemical Engineering & Technology, University of the Punjab, Lahore 54000, Pakistan
Abdullah Durrani: Institute of Chemical Engineering & Technology, University of the Punjab, Lahore 54000, Pakistan
Junaid Haider: School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Korea
Muzaffar Riaz: Department of Chemical Engineering, NFC Institute of Engineering & Technology, Multan 60000, Pakistan
Sana Saeed: Department of Chemical Engineering, NFC Institute of Engineering & Technology, Multan 60000, Pakistan
Muhammad Abdul Qyyum: School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea
Abdul-Sattar Nizami: Sustainable Development Study Center, Government College University, Lahore 54000, Pakistan
Mohammad Rehan: Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah 21577, Saudi Arabia
Moonyong Lee: School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea

Energies, 2021, vol. 14, issue 9, 1-13

Abstract: Pyrolysis behavior of ionic liquid (IL) pretreated coal and sugarcane bagasse (SCB) blends through thermogravimetric analysis (TGA) was studied. Three blends of coal and SCB having 3:1, 1:1, and 1:3 ratios by weight were treated with 1-ethyl-3-methylimidazolium chloride ([Emim][Cl]) at 150 °C for 3 h. Untreated and IL treated blends were then analyzed under pyrolytic conditions in a TGA at a constant ramp rate of 20 °C/min. Kinetic and thermodynamic parameters were evaluated using ten Coats-Redfern (CR) models to assess reaction mechanism. Results showed that the untreated blends followed a definite pattern and were proportional to the concentration of SCB in the blends. IL treated blends exhibited a higher average rate of degradation and total weight loss, indicating that IL had disrupted the cross-linking structure of coal and lignocellulosic structure of SCB. This will enhance the energy generation potential of biomass through thermochemical conversion processes. The lower activation energy (Ea) was calculated for IL treated blends, revealing facile thermal decomposition after IL treatment. Thermodynamic parameters, enthalpy change (?H), Gibbs free energy change (?G), and entropy change (?S), revealed that the pyrolysis reactions were endothermic. This study would help in designing optimized thermochemical conversion systems for energy generation.

Keywords: sugarcane bagasse; ionic liquids; pretreatment; thermogravimetric analysis; co-pyrolysis; kinetic analysis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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