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primary topic: Kinetics and thermodynamic parameters of ionic liquid pretreated rubber wood biomass

Kinetics and thermodynamic parameters of ionic liquid pretreated rubber wood biomass
type: AcademicArticle
type: Article
abstract: The impact of ionic liquids (ILs) namely 1-butyl-3-methylimidazolium chloride (BMimCl) and 1-butyl-3-methylimidazolium acetate (BMIMOAc) on rubber wood pyrolysis kinetic and thermodynamic parameters were investigated using thermogravimetric analysis (TGA). The ILs treated and untreated samples were characterized with FT-IR and elemental (CHNS) analyses. The activation energy for untreated and ILs treated rubber wood (RW) were determined using the Flynn-Wall-Ozawa (FWO), Kissinger-Akahira-Sunose (KAS) and Starink methods. The average activation energy calculated using FWO, KAS and Starink methods for untreated rubber wood was 120.15 kJ/mol, 117.10 kJ/mol and 117.60 kJ/mol, BMIMCl treated rubber wood was 87.32 kJ/mol, 77.73 kJ/mol, and 81.16 kJ/mol, while BMIMOAc treated rubber wood was 85.64 kJ/mol, 76.63 kJ/mol, and 80.47 kJ/mol, respectively. Starink method was further used to determine the pre-exponential factor and thermodynamic parameters of untreated and ILs treated samples. The thermo kinetics and thermodynamic parameters indicate that ILs pre-treatment decreases the thermal stability of the rubber wood. From FTIR analysis, it was observed that ILs pre-treatment affected the chemical composition of rubber wood. Elemental analysis showed that ILs treated RW has a higher content of Hydrogen/Carbon ratio because of the separation of lignin and hemicellulose during pre-treatment. It was concluded that ILs pre-treatment provided a potential way to improve the thermal conversion efficiency of rubber wood. © 2016 Elsevier B.V.
date: 2016
volume: 223
is part of: Journal of Molecular Liquids
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ArticleEPrint
is part of: repository

Elsevier B.V.
type: Organization

Journal of Molecular Liquids
type: Collection
issn: 01677322

C.F. Kait
type: Person
given name: C.F.
family name: Kait

N. Muhammad
type: Person
given name: N.
family name: Muhammad

P. Ahmad
type: Person
given name: P.
family name: Ahmad

A.S. Khan
type: Person
given name: A.S.
family name: Khan

G. Gonfa
type: Person
given name: G.
family name: Gonfa

M.A. Bustam
type: Person
given name: M.A.
family name: Bustam

Z. Man
type: Person
given name: Z.
family name: Man

A. Nasrullah
type: Person
given name: A.
family name: Nasrullah

M.I. Khan
type: Person
given name: M.I.
family name: Khan

Z. Ullah
type: Person
given name: Z.
family name: Ullah

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primary topic: Kinetics and thermodynamic parameters of ionic liquid pretreated rubber wood biomass