Performance test of a 6-stage continuous reactor for palm methyl ester production

Leevijit, Theerayut; Tongurai, Chakrit; Prateepchaikul, Gumpon; Wisutmethangoon, Worawut

doi:10.1016/j.biortech.2006.11.052

Cited by 48 publications

(24 citation statements)

References 26 publications

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“…The predicted productivity is also about 7-11.5 times higher than that of a batch process [4], 2.6 times the productivity of an ultrasonically driven continuous reactor [10] and very similar to the reported by Leevijit et al [11] for a 6-stage continuously stirred tank reactor, which remarkably resembles closely the behavior of the studied LLFR, according to the RTD analysis.…”

Section: Discussionsupporting

confidence: 84%

Continuous Methanolysis of Palm Oil Using a Liquid–Liquid Film Reactor

Narváez

Sánchez

Godoy-Silva

2009

J Americ Oil Chem Soc

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A system for the continuous methanolysis of palm oil using a liquid-liquid film reactor (LLFR) was developed and characterized. This reactor is a co-current, constant diameter (0.01 m), custom-made packed column where the mass transfer area between the partially miscible methanol-rich and vegetable oil-rich phases is created in a non-dispersive way, without the intervention of mechanical stirrers or ultrasound devices. An increase in contact area between phases enhances reaction rate while the absence of small, dispersed droplets of one phase into the other diminishes the settling time at the end of the reaction. In this study variations on the concentration of catalyst (sodium hydroxide), flow rate of palm oil and normalized length of the reactor (L/L max ) were explored, keeping constant both the methanol to oil molar ratio and the temperature of the reaction (6:1 and 60°C). The best experimental results with a reactor of 1.26 m (L/L max = 1.0) showed a conversion of palm oil of 97.5% and a yield of methyl esters of 92.2% of the theoretical yield, when the mass flow rate and the residence time of the palm oil were 9.0 g min -1 and 5.0 min, respectively. To determine the mean residence time and the degree of axial mixing in the reactor, a residence time distribution (RTD) study was performed using a step-function input. The dispersion model appears to fit well the RTD experimental data.

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Section: Discussionsupporting

confidence: 84%

Continuous Methanolysis of Palm Oil Using a Liquid–Liquid Film Reactor

Narváez

Sánchez

Godoy-Silva

2009

J Americ Oil Chem Soc

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“…The findings from the attainable region method corroborate the research conducted by Darnoko and Cherian (2000), Leevijit et al (2008) and Komers et al (2010) [6][7][8]. For production of methyl ester especially from the feedstock studied, a CSTR was found to be a suitable reactor that gives complete triglycerides conversion.…”

Section: Resultssupporting

confidence: 77%

Synthesis of Reactor Networks for Methyl Ester Production

Nasir¹,

Daud²,

Kamarudin³

et al. 2012

IJCEA

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Abstract-The main objective of this study is to determine the reactor configurations for biodiesel production through attainable region method. The systematic design method is practically used for determining reactor configurations that will produce the optimal product. Kinetic model for biodiesel production was developed for Plug-Flow Reactor, PFR and Continuous Stirred-Tank Reactor, CSTR. The model was solved in MATLAB and subsequently applied in the attainable region method to determine the reactor structure of two different biodiesel feedstock; waste sunflower oil and rapeseed oil. The results indicate that a CSTR is an optimal reactor with maximum conversion of triglyceride.

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“…Depending on the systems, second-order, [26] pseudo-second-order, [30,31] or, at higher excess of MeOH, pseudo-first-order [18] kinetic models have been successfully applied for data fitting. Several mechanistic models have been proposed, all of which resulted in quite suitable fitting of the experimental data by the respective mathematical models; namely, a simple sequence of reversible transesterification steps, [18] consecutive steps with contribution of the shunt mechanism (simultaneous reaction of all three ester groups in the triglyceride), [18,26] and competitive hydrolysistransesterification.…”

Section: Kinetics and Thermodynamics Of Triglyceride Transesterificationmentioning

confidence: 99%

Catalytic Applications in the Production of Biodiesel from Vegetable Oils

Sivasamy¹,

Cheah²,

Fornasiero³

et al. 2009

ChemSusChem

295

177

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The predicted shortage of fossil fuels and related environmental concerns have recently attracted significant attention to scientific and technological issues concerning the conversion of biomass into fuels. First-generation biodiesel, obtained from vegetable oils and animal fats by transesterification, relies on commercial technology and rich scientific background, though continuous progress in this field offers opportunities for improvement. This review focuses on new catalytic systems for the transesterification of oils to the corresponding ethyl/methyl esters of fatty acids. It also addresses some innovative/emerging technologies for the production of biodiesel, such as the catalytic hydrocracking of vegetable oils to hydrocarbons. The special role of the catalyst as a key to efficient technology is outlined, together with the other important factors that affect the yield and quality of the product, including feedstock-related properties and various system conditions.

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Performance test of a 6-stage continuous reactor for palm methyl ester production

Cited by 48 publications

References 26 publications

Continuous Methanolysis of Palm Oil Using a Liquid–Liquid Film Reactor

Continuous Methanolysis of Palm Oil Using a Liquid–Liquid Film Reactor

Synthesis of Reactor Networks for Methyl Ester Production

Catalytic Applications in the Production of Biodiesel from Vegetable Oils

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