Extraction and characterization of lignin from oil palm biomass via ionic liquid dissolution and non-toxic aluminium potassium sulfate dodecahydrate precipitation processes

Mohtar, Safia Syazana; Busu, Tengku Nur Zulaikha Tengku Malim; Noor, Ahmad Mujahid Md; Shaari, Norsalliana; Yusoff, Nik Athirah; Bustam@Khalil, M.A.; Mutalib, M.I. Abdul; Mat, Hanapi

doi:10.1016/j.biortech.2015.05.029

Cited by 83 publications

(34 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The molecular weight of lignin after pretreatment depends on the source and isolation and purification procedures employed. [59] [54] 3301 12 007 3.64 --birch alkali lignin [54] 3086 12 274 3.98 --spruceo rganosolv lignin [54] 846 2226 2.6 --birch organosolv lignin [54] 937 2150 2.3 ---Eucalyptus pellita Kraft-AQ pulping lignin [55] 492 493 1.0 ---SW kraftl ignin [56] 1100 1680 1.5 --oil palm lignin [57] 1263 874 1.44 --- ChemSusChem 2018ChemSusChem , 11,1 121 -1131 www.chemsuschem.org [52,53] Gel-permeation chromatography (GPC) was performed on recovered HW and SW lignin after pretreatment ( Figure S7).…”

Section: Investigation On Properties Of Untreated and Pretreated Woodsmentioning

confidence: 99%

Low‐temperature, Low‐Energy, and High‐Efficiency Pretreatment Technology for Large Wood Chips with a Redox Couple Catalyst

et al. 2018

View full text Add to dashboard Cite

The pretreatment of lignocellulosic biomass plays a vital role in the conversion of cellulosic biomass to bioethanol, especially for softwoods and hardwoods. Although many pretreatment technologies have been reported so far, only a few pretreatment methods can handle large woodchips directly. To improve the efficiency of pretreatment, existing technologies require the grinding of the wood into small particles, which is an energy-consuming process. Herein, for the first time, we report a simple, effective, and low-temperature (≈100 °C) process for the pretreatment of hardwood (HW) and softwood (SW) chips directly by using a catalytic system of FeCl /NaNO (FCSNRC). The pretreatment experiments were conducted systematically, and a conversion of 71.53 and 70.66 % of cellulose to sugar could be obtained for the direct use of large HW and SW chips. The new method reported here overcomes one of the critical barriers in biomass-to-biofuel conversion, and both grinding and thermal energies can be reduced significantly.

show abstract

Section: Investigation On Properties Of Untreated and Pretreated Woodsmentioning

confidence: 99%

Low‐temperature, Low‐Energy, and High‐Efficiency Pretreatment Technology for Large Wood Chips with a Redox Couple Catalyst

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The derivative thermo-gravimetric (DTG) curves were generated from the differentiation of TGA curves (weight by percentage, wt.%), which provided information about the temperature at which the weight loss was most dramatic. The results are illustrated in Table 5 (Mohtar et al 2015).…”

Section: Thermal Propertiesmentioning

confidence: 99%

“…The complete degradation of cellulose took place between 275 °C and 400 °C (Deepa et al 2011;Costa et al 2013). The increase in the onset temperature corresponded to the removal of hemicellulose, which could occur at a low temperature, before the degradation of cellulose (Mohtar et al 2015). However, the LS had the highest onset temperature of approximately 319 °C potentially due to the presence of silica bodies on the surface.…”

Section: Thermal Propertiesmentioning

confidence: 99%

Microscopic Structural Features and Properties of Single Fibers from Different Morphological Parts of the Windmill Palm

Chen¹,

Sun²,

Chen³

et al. 2017

BioResources

View full text Add to dashboard Cite

The chemical, morphological, physical, and thermal properties of raw materials and single fibers extracted from different morphological parts of windmill palm were examined and comprehensively characterized after an alkali treatment. Leaf sheathes (LS) with the highest cellulose content (52.26%) achieved the most efficient extraction of fibers. Single fibers extracted from the vascular bundles of the windmill palm raw material had a slender shape with a tapering and sealing terminus, with each single fiber possessing a lumen in its cross-section. These windmill palm fibers displayed similar chemical compositions, but they exhibited significant differences in morphological parameters. Leaf blade fibers (LBFs) had the longest length (1240 μm ± 470 μm) and highest aspect ratio (121.39), which presented excellent potential as a reinforced fiber. After the alkali treatment, almost all of the hemicelluloses and lignin were removed, which resulted in increased crystallinity of extracted fibers. Thermogravimetric analysis confirmed LS stability up to 319 °C, which was higher than that of other materials from windmill palm.

show abstract

“…Some studies have demonstrated a change of the lignin structure following the treatment in ionic liquids, which made lignin fragments smaller and hence easier to depolymerize . Our group has previously developed a pathway to depolymerize lignin in 1‐ethyl‐3‐methylimidazolium xylenesulfonate [emim][ABS] involving redistribution mechanism . Additionally, oxidative lignin fragmentation in ionic liquids has also been investigated.…”

Section: Introductionmentioning

confidence: 99%

Oxidized Lignin Depolymerization using Formate Ionic Liquid as Catalyst and Solvent

et al. 2017

View full text Add to dashboard Cite

Lignin has been widely studied as a sustainable source of renewable materials, particularly aromatic feedstock chemicals, which are in great and increasing need in the world. Lignin oxidation and depolymerization presents a promising approach to functionalized phenolic products. In this work, a novel oxidative degradation of lignin using a formate ionic liquid was investigated resulting in ethyl acetate soluble and also water‐soluble depolymerized lignin products. The β‐O‐4 bonds in lignin were oxidized and then depolymerized by a recyclable ionic liquid, 2‐hydroxy ethylammonium formate. 2‐Hydroxy ethylammonium formate, which could dissolve lignin acting as a solvent, was found to also catalyze the depolymerization of the oxidized lignin. The lignin depolymerization products were characterized.

show abstract

Extraction and characterization of lignin from oil palm biomass via ionic liquid dissolution and non-toxic aluminium potassium sulfate dodecahydrate precipitation processes

Cited by 83 publications

References 27 publications

Low‐temperature, Low‐Energy, and High‐Efficiency Pretreatment Technology for Large Wood Chips with a Redox Couple Catalyst

Low‐temperature, Low‐Energy, and High‐Efficiency Pretreatment Technology for Large Wood Chips with a Redox Couple Catalyst

Microscopic Structural Features and Properties of Single Fibers from Different Morphological Parts of the Windmill Palm

Oxidized Lignin Depolymerization using Formate Ionic Liquid as Catalyst and Solvent

Contact Info

Product

Resources

About