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Title: Bioenergy potential of Wolffia arrhiza appraised through pyrolysis, kinetics, thermodynamics parameters and TG-FTIR-MS study of the evolved gases
Authors: Muhammad Sajjad Ahmad
Muhammad Aamer Mehmood
Chen Guang Liu
Abdul Tawab
Feng Wu Bai
Chularat Sakdaronnarong
Jianren Xu
Sawsan Abdulaziz Rahimuddin
Munazza Gull
Sichuan University of Science & Engineering
Government College University Faisalabad
National Institute for Biotechnology and Genetic Engineering Pakistan
Shanghai Jiao Tong University
Mahidol University
King Abdulaziz University
Keywords: Chemical Engineering;Energy;Environmental Science
Issue Date: 1-Apr-2018
Citation: Bioresource Technology. Vol.253, (2018), 297-303
Abstract: © 2018 Elsevier Ltd This study evaluated the bioenergy potential of Wolffia arrhiza via pyrolysis. The biomass was collected from the pond receiving city wastewater. Oven dried powdered biomass was exposed to thermal degradation at three heating rates (10, 30 and 50° C min−1) using Thermogravimetry–Differential Scanning Calorimetry analyzer in an inert environment. Data obtained were subjected to the isoconversional models of Kissenger-Akahira-Sunose (KSA) and Flynn–Wall–Ozawa (FWO) to elucidate the reaction chemistry. Kinetic parameters including, Ea (136–172 kJmol−1) and Gibb's free energy (171 kJmol−1) showed the remarkable bioenergy potential of the biomass. The average enthalpies indicated that the product formation is favored during pyrolysis. Advanced coupled TG-FTIR-MS analyses showed the evolved gases to contain the compounds containing C[dbnd]O functional groups (aldehydes, ketones), aromatic and aliphatic hydrocarbons as major pyrolytic products. This low-cost abundant biomass may be used to produce energy and chemicals in a cost-efficient and environmentally friendly way.
ISSN: 18732976
Appears in Collections:Scopus 2018

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