Prediction of biodiesel yield during transesterification process using response surface methodology

Mohamad, Mohd Faizal; Ngadi, Norzita; Jusoh, Mazura; Yahya, Noor Yahida

doi:10.1016/j.fuel.2016.10.123

Cited by 80 publications

(28 citation statements)

References 32 publications

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“…Research results of Hoekman et al [41] showed that in twelve types of biodiesel, the range of kinematic viscosity was from 4 to 5 mm 2 /s. According to Table 7, it is clear that the flash point, pour point, acid value, and oxidative stability are consistent with reports from other researchers [21,22,42]. It is important to note here that the properties of the produced biodiesel are in the range of the standard-defined properties (ASTM D6751 and EN 14112).…”

Section: Optimization Of the Production Process Using Desirability Fusupporting

confidence: 87%

Optimization of an Ultrasonic-Assisted Biodiesel Production Process from One Genotype of Rapeseed (TERI (OE) R-983) as a Novel Feedstock Using Response Surface Methodology

et al. 2019

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In recent years, due to the favorable climate conditions of Iran, the cultivation of rapeseed has increased significantly. The aim of this study was to investigate the possibility of biodiesel production from one genotype of rapeseed (TERI (OE) R-983). An ultrasonic approach was used in order to intensify the reaction. Response surface methodology (RSM) was applied to identify the optimum conditions of the process. The results of this research showed that the conversion of biodiesel was found to be 87.175% under the optimized conditions of a 4.63:1 molar ratio (methanol to oil), 56.50% amplitude, and 0.4 s pulses for a reaction time of 5.22 min. Increasing the operating conditions, such as the molar ratio from 4:1 to 5.5:1, amplitude from 50% to 72.5%, reaction time from 3 min to 7 min, and pulse from 0.4 s to 1 s, increased the FAME (fatty acid methyl esters) yield by approximately 4.5%, 2.3%, 1.2%, and 0.5%, respectively. The properties of the TERI (OE) R-983 methyl ester met the requirements of the biodiesel standard (ASTM D6751), indicating the potential of the produced biodiesel as an alternative fuel.

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Section: Optimization Of the Production Process Using Desirability Fusupporting

confidence: 87%

Optimization of an Ultrasonic-Assisted Biodiesel Production Process from One Genotype of Rapeseed (TERI (OE) R-983) as a Novel Feedstock Using Response Surface Methodology

et al. 2019

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“…Then, a decrease in biodiesel yield was observed for further increased residence time and catalyst loading due to the reverse transesterification reaction effect on the biodiesel yield. Mohamad, et al have observed the same phenomenon [35]. Figure 4 displays the interactive influence of residence (X 1 ) and methanol/oil ratio (X 3 ) on the biodiesel yield at constant catalyst loading (X 2 ) and a reaction temperature (X 4 ) of 8 wt% and 368.15 K, respectively.…”

Section: Variable Interaction and Surface Analysissupporting

confidence: 52%

DBSA-Catalyzed Sewage Sludge Conversion into Biodiesel in a CSTR: RSM Optimization and RTD Study

Jazie

2019

J. Eng. Technol. Sci.

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Sewage sludge from the primary stage of a wastewater treatment plant (WWTP) in Al-Diwaniyah City was direct-transesterified to biodiesel using dodecylbenzenesulfonic acid catalyst in a system with two continuously stirred tank reactors. The response surface and the central cube design methodologies were used to optimize the parameters affecting the biodiesel yield. The optimum conditions for the process in this study were found to be (residence time: 90 min; catalyst loading 8 wt%; methanol/oil ratio: 18; reaction temperature: 368.15 K). Under the optimum process conditions a biodiesel yield of 96.51% was obtained. The experimental residence time distribution (RTD) was calculated and compartment models were applied for the two-tank reactor system. In the CSTR, a dead zone of (10 liter) was estimated. The independent analysis of fatty acids in the sewage showed that the lipids consisted primarily of palmitic acid (C16:0 = 37.86), oleic acid (C18:1 cis-9 = 19.72) and stearic acid (C18:0 = 17.32), and the acid value was (2.44 mg KOH/g). The properties of the biodiesel produced were comparable with the ASTM D-6751-2 standard and the properties of mineral diesel.

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“…Table 2 shows the properties of biodiesel with their limits. US and EU standards (Asikin-mijan et al, 2015;Hajjari et al, 2017;Hassan and Kalam, 2013;Ho et al, 2014;Kostić et al, 2016;Mofijur et al, 2013;Mohamad et al, 2017) Properties (Unit) US (ASTM D6751) EU (EN 14214) Density (kg m -3 ) 860-894 860-900 Acid value (mg KOH g -1 ) 0.50 max 0.50 max Saponification value (mg KOH g -1 )…”

Section: The Quality Standard Of Biodieselmentioning

confidence: 99%

Synthesis of mesoporous calcium titanate catalyst for transesterification of used cooking oil: A review of the synthesized potential

Yahya¹,

Ngadi²

2020

Int. j. adv. appl. sci.

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Biodiesel is a promising alternative for conventional diesel fuel due to the unsustainable feature of the resources and unstable price of the fuels. However, the production cost is higher compared to the conventional ones and is significantly contributed from the feedstock. Realizing that a large portion of used cooking oil (UCO) is generated daily, this review aims to investigate and explore the production of biodiesel from UCO. In the production reaction process, undoubtedly, the catalyst plays an important role. It has been shown that calcium oxide (CaO) is one of the best heterogeneous basic catalysts in the transesterification reaction for biodiesel production. However, the catalyst has a low surface area which restricts the active basic sites to disperse on the catalyst surface. Moreover, CaO catalyst faces leaching problem, poor stability, and porosity which hinder its catalytic activity and reusability. Therefore, in this study, it is aimed to review the potential of titanium as a support catalyst to modify CaO supported titanium with a mesoporous structure (mesoporous calcium titanate) by a sol-gelhydrothermal method to overcome the limitations of CaO catalyst.

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Prediction of biodiesel yield during transesterification process using response surface methodology

Cited by 80 publications

References 32 publications

Optimization of an Ultrasonic-Assisted Biodiesel Production Process from One Genotype of Rapeseed (TERI (OE) R-983) as a Novel Feedstock Using Response Surface Methodology

Optimization of an Ultrasonic-Assisted Biodiesel Production Process from One Genotype of Rapeseed (TERI (OE) R-983) as a Novel Feedstock Using Response Surface Methodology

DBSA-Catalyzed Sewage Sludge Conversion into Biodiesel in a CSTR: RSM Optimization and RTD Study

Synthesis of mesoporous calcium titanate catalyst for transesterification of used cooking oil: A review of the synthesized potential

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