Structural and morphological studies on alkaline pre-treatment of oil palm empty fruit bunch (OPEFB) fiber for composite production

Latip, Normah Abdul; Sofian, Azizul Helmi; Ali, Mohd Faizal; Ismail, Siti Natrah; Idris, Daing Mohamad Nafiz Daing

doi:10.1016/j.matpr.2019.06.529

Cited by 38 publications

(20 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For this reason, many articles reference in the literature were searched further for the additional relevant reviewed and data will also be gathered from multiple sources at various time points. Much of the current literature on surface modification pays particular attention by conducting various chemical treatments (commonly used alkaline treatment of 1244 (2022) 012001 IOP Publishing doi:10.1088/1757-899X/1244/1/012001 2 NaOH) to reduce the hydrophilic nature of fibers (moisture absorption) and to enhance the fiber surface adhesion with matrix (interfacial interaction) [4]- [6].…”

Section: Introductionmentioning

confidence: 99%

Tensile strength of single banana fibers (SBFs) improved by novel alkaline treatment

Norman

Hashim²

2022

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

Environmental concern on global warming controversy has raised the issue that forced the researchers to work on green materials. Among them, plant fibers are recognized as environmentally friendly with a high potential to explore their adaptability and utilization for many engineering applications. This paper aims to examine the banana fiber behavior of various alkaline treatment conditions and compare the results with untreated fiber conducted on the same tests. Both the tests were subjected to physical and tensile load, then each condition was tested individually to achieve a valid average. The Paper frame technique was adopted for this single fiber tensile test (SFTT) and corresponding to the stress-strain curves. Surface morphology was done using scanning electron microscopy (SEM) to compare and find the effect of alkaline treatment on surface fiber modification.

show abstract

Section: Introductionmentioning

confidence: 99%

Tensile strength of single banana fibers (SBFs) improved by novel alkaline treatment

Norman

Hashim²

2022

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

show abstract

“…The composting of OPEFB is a relatively slow biological process, and hence it is inadequate to manage the enormous amount of OPEFB produced. The combustion of OPEFB generates fly ash as an air pollutant [9] and produces corrosive materials that damage the superheater [10]. Moreover, due to its large quantity, open dumping of OPEFB requires vast land, and the decomposition process releases a foul odor [11].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Volatile Fatty Acid Production from Oil Palm Empty Fruit Bunch through Acidogenic Fermentation—A Novel Resource Recovery Strategy for Oil Palm Empty Fruit Bunch

et al. 2021

View full text Add to dashboard Cite

The glucan-rich fraction, hemicellulosic compounds-rich fraction, and a mixture of both fractions obtained from organosolv pretreatment of oil palm empty fruit bunch (OPEFB) were used as substrates to produce volatile fatty acids (VFAs) in acidogenic fermentation. In this study, the effects of medium adjustment (carbon to nitrogen ratio and trace elements supplementation) and methanogenesis inhibition (through the addition of 2-bromoethanesulfonate or by heat shock) to enhance VFAs yield were investigated. The highest VFA yield was 0.50 ± 0.00 g VFAs/g volatile solid (VS), which was obtained when methanogens were inhibited by heat shock and cultivated in a mixture of glucan-rich and hemicellulosic compounds-rich fractions. Under these conditions, the fermentation produced acetic acid as the only VFA. Based on the results, the mass balance of the whole process (from pretreatment and fermentation) showed the possibility to obtain 30.4 kg acetic acid and 20.3 kg lignin with a 70% purity from 100 kg OPEFB.

show abstract

“…Physical methods such as uncatalyzed steam-explosion 7 , 8 , liquid hot water (LHW) 9 , 10 , mechanical communication 11 , and high energy radiation 12 . Meanwhile, Chemical methods such as catalyzed steam-explosion 13 , acid pretreatment 14 , 15 , alkaline pretreatment 16 , 17 , ammonia fiber/freeze explosion (AFEX) 18 , 19 , organosolv 20 , 21 , and pH-controlled liquid hot water 10 . To improve pretreatment results, a combination of these two methods is often carried out such as the combination of the hydrothermal method with sulfuric acid.…”

Section: Introductionmentioning

confidence: 99%

Optimization of OPEFB lignocellulose transformation process through ionic liquid [TEA][HSO4] based pretreatment

Nurdin

Abimanyu

Putriani

et al. 2021

Sci Rep

View full text Add to dashboard Cite

Research on the transformation of Oil Palm Empty Fruit Bunches (OPEFB) through pretreatment process using ionic liquid triethylammonium hydrogen sulphate (IL [TEA][HSO4]) was completed. The stages of the transformation process carried out were the synthesis of IL with the one-spot method, optimization of IL composition and pretreatment temperature, and IL recovery. The success of the IL synthesis stage was analyzed by FTIR, H-NMR and TGA. Based on the results obtained, it showed that IL [TEA][HSO4] was successfully synthesized. This was indicated by the presence of IR absorption at 1/λ = 2814.97 cm−1, 1401.07 cm−1, 1233.30 cm−1 and 847.92 cm−1 which were functional groups for NH, CH3, CN and SO2, respectively. These results were supported by H-NMR data at δ (ppm) = 1.217–1.236 (N–CH2–CH3), 3.005–3.023 (–H), 3.427–3.445 (N–H+) and 3.867 (N+H3). The TGA results showed that the melting point and decomposition temperature of the IL were 49 °C and 274.3 °C, respectively. Based on pretreatment optimization, it showed that the best IL composition for cellulose production was 85 wt%. Meanwhile, temperature optimization showed that the best temperature was 120 °C. In these two optimum conditions, the cellulose content was obtained at 45.84 wt%. Testing of IL [TEA][HSO4] recovery performance for reuse has shown promising results. During the pretreatment process, IL [TEA][HSO4] recovery effectively increased the cellulose content of OPEFB to 29.13 wt% and decreased the lignin content to 32.57%. The success of the recovery process is indicated by the increasing density properties of IL [TEA][HSO4]. This increase occurs when using a temperature of 80–100 °C. The overall conditions obtained from this work suggest that IL [TEA][HSO4] was effective during the transformation process of OPEFB into cellulose. This shows the potential of IL [TEA][HSO4] in the future in the renewable energy sector.

show abstract

Structural and morphological studies on alkaline pre-treatment of oil palm empty fruit bunch (OPEFB) fiber for composite production

Cited by 38 publications

References 12 publications

Tensile strength of single banana fibers (SBFs) improved by novel alkaline treatment

Tensile strength of single banana fibers (SBFs) improved by novel alkaline treatment

Enhanced Volatile Fatty Acid Production from Oil Palm Empty Fruit Bunch through Acidogenic Fermentation—A Novel Resource Recovery Strategy for Oil Palm Empty Fruit Bunch

Optimization of OPEFB lignocellulose transformation process through ionic liquid [TEA][HSO4] based pretreatment

Contact Info

Product

Resources

About