Ethyl oleate production by means of pervaporation-assisted esterification using heterogeneous catalysis

Figueiredo, Kátia Cecília de Souza; Salim, Vera Maria Martins; Borges, Cristiano Piacsek

doi:10.1590/s0104-66322010000400013

Cited by 36 publications

(9 citation statements)

References 28 publications

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“…There are few reports in the literature on zeolite catalysed oleic acid esterification reactions, and the majority use methanol; zeolite beta [52,53]; mordenite, ZSM-5 and FAU-type zeolite [54]; and ZSM-5 modified with citric acid [55]. Oleic acid esterification with ethanol was studied in batch conditions over zeolite Y [56] and zeolite beta [57], and via pervaporation-assisted continuous esterification over Amberlyst-15 [58] and NaA zeolite membrane [59].…”

Section: Introductionmentioning

confidence: 99%

Biodiesel from batch and continuous oleic acid esterification using zeolite catalysts

Alismaeel

Abbas

Albayati

et al. 2018

Fuel

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The esterification of oleic acid with ethanol was studied in both batch and continuous conditions in a fixed-bed reactor over FAU-type zeolites prepared from shale rock. The addition of Co-Ni-Pt to the zeolite increased the catalyst activity over the entire reaction temperature range. Experiments confirmed that esterification follows pseudo first-order kinetics. Thermodynamic analysis and Thiele modulus calculations show that the reaction is kinetically controlled in batch conditions, while diffusional limitations occur at higher flow rates when conducted in continuous mode. The maximum oleic acid conversions were recorded as 93% for batch and 89% for continuous, which exceed those of any analogous studies.

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Section: Introductionmentioning

confidence: 99%

Biodiesel from batch and continuous oleic acid esterification using zeolite catalysts

Alismaeel

Abbas

Albayati

et al. 2018

Fuel

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“…62,63 The applications of different membranes in the esterification− pervaporation coupling system in recent years are reorganized in Table 3. Figueiredo et al 64 researched the pervaporation-assisted esterification of ethanol and oleic acid catalyzed by Amberlyst 15. In comparison to the intermittent reaction without pervaporation assisting, a hydrophilic poly(vinyl alcohol) (PVA) film applied to wipe off water from reactive system esterification could be expected to double the ethyl oleate reactive yield.…”

Section: Biodiesel By Pervaporation-enhanced Esterificationmentioning

confidence: 99%

Mini Review of Biodiesel by Integrated Membrane Separation Technologies That Enhanced Esterification/Transesterification

Ding

et al. 2020

Energy Fuels

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Nowadays, the production of biodiesel from various renewable sources is becoming increasingly urgent because fossil fuels are becoming less and less available and accessible. Biodegradability, non-toxicity, and low pollution emissions are merely some properties making biodiesel a more environmentally friendly fuel. Esterification/transesterification is the most commonly used method to produce the biodiesel, whose reaction products are water/glycerol and mixed fatty acid esters. The membrane separation methods are applied to remove water/glycerol, which is capable of upsetting the chemical equilibrium of esterification/ transesterification controlled by thermodynamics and facilitating the reaction to proceed forward accordingly. The integrated membrane separation process is coupled with the chemical reaction, which could isolate a certain product from the reaction system with the reaction going on. That means that it is possible for the membrane separation technology to burst the restraints of original chemical equilibrium to gain the higher equilibrium conversion rate and yield. In comparison to other methods, the membrane separation technique coupled with chemical reaction has the ability to increase the reaction conversion rate, shorten the reaction time, and evenly reduce energy consumption.

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“…The reactive separation operation where simultaneous reaction and separation is allowed in a single unit has shown improved engineering attributes. Such operations include reactive distillation, reactive absorption, reactive extraction, and reactive membrane . The novel integrative approaches overcome the equilibrium limitation and reduce the production cost with an additional energy‐saving potential of 45 to 85% .…”

Section: Strategies For Reducing the Cost Of Biodiesel Production Fromentioning

confidence: 99%

A review on separation and purification techniques for biodiesel production with special emphasis on Jatropha oil as a feedstock

Suthar

Dwivedi

Joshipura

2019

Asia-Pacific J Chem Eng

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Biodiesel is a promising alternative to conventional fuels. Research on biodiesel has vast experimental findings, but the outcomes are not always unidirectional.The sequence of unit operation for various transesterification processes is studied. The review work emphasizes on the separation and purification of Jatropha-derived biodiesel. The study on the downstream processes of alcohol recovery, glycerol-rich and biodiesel-rich phase separation, and biodiesel purification techniques is the main part of this paper. The biodiesel purification includes wet and dry washing and membrane techniques. The purpose of the review is to find separation techniques that are less energy-intensive and environmentally friendly purification processes for biodiesel production from Jatropha. The strategies to reduce the cost of biodiesel production from Jatropha are discussed. The Jatropha biodiesel possesses huge potential as one of the alternative energy sources for commercial exploitation in India.

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Ethyl oleate production by means of pervaporation-assisted esterification using heterogeneous catalysis

Cited by 36 publications

References 28 publications

Biodiesel from batch and continuous oleic acid esterification using zeolite catalysts

Biodiesel from batch and continuous oleic acid esterification using zeolite catalysts

Mini Review of Biodiesel by Integrated Membrane Separation Technologies That Enhanced Esterification/Transesterification

A review on separation and purification techniques for biodiesel production with special emphasis on Jatropha oil as a feedstock

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