title: Kinetic and product composition study on the cellulose liquefaction in polyhydric alcohols.
abstract: The liquefaction process of cellulose in polyhydric alcohols (PEG 400 and glycerol) was studied by TG-FTIR. Three stages were observed during the solvolysis process and the main liquefaction stage could be further divided into two zones. The differences of liquefaction behavior of cellulose in the two solvents were compared, and the functional groups of volatiles produced by solvolysis were also evaluated. A step-wise procedure based on iso-conversional and Master-plots methods was used for the kinetic and mechanism analysis of the main liquefaction stage. The calculation results based on the kinetic model were in agreement with the experimental data of the conversion rate. The kinetic parameters and mechanism functions between cellulose liquefaction in PEG400 and in glycerol were quite different, which verified that solvolysis behavior and reaction process were seriously influenced by solvent species. Finally, the detailed types of volatiles and product distribution were measured by Py-GC-MS.
authors.affiliation: Engineering Laboratory for Energy System Process Conversion & Emission Control Technology of Jiangsu Province, School of Energy & Mechanical Engineering, Nanjing Normal University, Nanjing 210042, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Shi
authors.affiliation: Engineering Laboratory for Energy System Process Conversion & Emission Control Technology of Jiangsu Province, School of Energy & Mechanical Engineering, Nanjing Normal University, Nanjing 210042, China.
authors.forename: Jingdan
authors.initials: J
authors.lastname: Li
authors.affiliation: Engineering Laboratory for Energy System Process Conversion & Emission Control Technology of Jiangsu Province, School of Energy & Mechanical Engineering, Nanjing Normal University, Nanjing 210042, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
authors.affiliation: Engineering Laboratory for Energy System Process Conversion & Emission Control Technology of Jiangsu Province, School of Energy & Mechanical Engineering, Nanjing Normal University, Nanjing 210042, China.
authors.forename: Tiantian
authors.initials: T
authors.lastname: Zhao
authors.affiliation: Engineering Laboratory for Energy System Process Conversion & Emission Control Technology of Jiangsu Province, School of Energy & Mechanical Engineering, Nanjing Normal University, Nanjing 210042, China.
authors.forename: Hongmin
authors.initials: H
authors.lastname: Yang
authors.affiliation: Institute of Chemical Industry of Forest Products, China Academy of Forest, 210042, China.
authors.forename: Jianchun
authors.initials: J
authors.lastname: Jiang
authors.affiliation: Engineering Laboratory for Energy System Process Conversion & Emission Control Technology of Jiangsu Province, School of Energy & Mechanical Engineering, Nanjing Normal University, Nanjing 210042, China; Institute of Chemical Industry of Forest Products, China Academy of Forest, 210042, China. Electronic address: 62081@njnu.edu.cn.
authors.forename: Xiaoxiang
authors.initials: X
authors.lastname: Jiang
mesh_terms: D000438:Alcohols / Q000737:chemistry*; D002482:Cellulose / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D005990:Glycerol / Q000737:chemistry; D007700:Kinetics; D011092:Polyethylene Glycols / Q000737:chemistry; D012997:Solvents / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D000438:Alcohols; D012997:Solvents; D011092:Polyethylene Glycols; D002482:Cellulose; D005990:Glycerol
keywords: Cellulose liquefaction; Kinetic analysis; Multi-zone process; Product distribution; Solvolysis behavior