Pretreatment of Oil Palm Frond (OPF) with Ionic Liquid

3rd International Conference on Global Sustainability and Chemical Engineering

工业技术;化学工业

Azmi, I.S.^1 ; Azizan, A.^1 ; Mohd Salleh, R.^1

Faculty of Chemical Engineering, Universiti Teknologi MARA, Shah Alam, Malaysia^1

关键词: 1-ethyl-3-methylimidazolium acetates;    Cellulosic biofuels;    Conventional methods;    Crystallinity index;    Green engineering;    Ionic liquid (ils);    Lignocellulosic biomass;    Morphology changes;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/358/1/012071/pdf
DOI  :  10.1088/1757-899X/358/1/012071

学科分类：工业工程学

来源: IOP

【 摘 要 】

Pretreatment is the key to unlock the recalcitrance of lignocellulose for cellulosic biofuel production. Increasing attention has been drawn to ionic liquids (ILs) for pretreatment of lignocellulosic biomass because this approach was considered as a green engineering method over other conventional methods. In this work, Oil palm frond (OPF) was pretreated by using the ionic liquid 1-ethyl-3-methylimidazolium acetate [EMIM] Ac at the temperature of 99C for 3 hours. The characterization of the untreated and pretreated OPF was conducted by using different techniques which are Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). The pretreatment of OPF with [EMIM] Ac was demonstrated to be effective evidenced by the significant reduction of Lateral Order Index (LOI) from FTIR, reduction of Crystallinity Index (CI) based on XRD and the significant morphology changes indicated by SEM. The CI value for the pretreated OPF decreased from 0.47 (untreated sample) to 0.28 while the LOI value decreased from 1.10 to 0.24 after pretreatment with [EMIM]Ac and the SEM morphology showed that the pretreated OPF becomes distorted and disordered.