title: Kinetic and energy production analysis of pyrolysis of lignocellulosic biomass using a three-parallel Gaussian reaction model.
abstract: The kinetic and energy productions of pyrolysis of a lignocellulosic biomass were investigated using a three-parallel Gaussian distribution method in this work. The pyrolysis experiment of the pine sawdust was performed using a thermogravimetric-mass spectroscopy (TG-MS) analyzer. A three-parallel Gaussian distributed activation energy model (DAEM)-reaction model was used to describe thermal decomposition behaviors of the three components, hemicellulose, cellulose and lignin. The first, second and third pseudocomponents represent the fractions of hemicellulose, cellulose and lignin, respectively. It was found that the model is capable of predicting the pyrolysis behavior of the pine sawdust. The activation energy distribution peaks for the three pseudo-components were centered at 186.8, 197.5 and 203.9kJmol(-1) for the pine sawdust, respectively. The evolution profiles of H2, CH4, CO, and CO2 were well predicted using the three-parallel Gaussian distribution model. In addition, the chemical composition of bio-oil was also obtained by pyrolysis-gas chromatography/mass spectrometry instrument (Py-GC/MS).
authors.affiliation: Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Qingdao 266101, PR China. Electronic address: chentianju27@gmail.com.
authors.forename: Tianju
authors.initials: T
authors.lastname: Chen
authors.affiliation: Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Qingdao 266101, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
authors.forename: Jinzhi
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Qingdao 266101, PR China. Electronic address: wujh@qibebt.ac.cn.
authors.forename: Jinhu
authors.initials: J
authors.lastname: Wu
mesh_terms: D018533:Biomass; D002482:Cellulose / Q000737:chemistry; D006358:Hot Temperature; D007700:Kinetics; D008031:Lignin / Q000737:chemistry*; D013058:Mass Spectrometry / Q000379:methods; D008962:Models, Theoretical; D016011:Normal Distribution; D028223:Pinus; D011134:Polysaccharides / Q000737:chemistry; D059205:Renewable Energy; D013818:Thermogravimetry; D014934:Wood
chemical_list: D011134:Polysaccharides; C036909:lignocellulose; C007916:hemicellulose; D002482:Cellulose; D008031:Lignin
keywords: Distributed activation energy model (DAEM); Kinetic analysis; Pyrolysis; Thermogravimetric analysis (TGA)