Modeling the methanolysis of triglyceride catalyzed by immobilized lipase in a continuous-flow packed-bed reactor

Tran, Dang Thuan; Lin, Yen‐Chu; Chen, Ching Lung; Chang, Jo Shu

doi:10.1016/j.apenergy.2014.03.082

Cited by 15 publications

(10 citation statements)

References 40 publications

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“…This stresses that the use of the PIL modified silica in immobilizing BCL by covalent binding decreases the diffusional resistance of the substrate at the active site of the lipase. This behavior is similar to that in the study by Tran et al, 42 which evaluated the k c of sunflower oil in methanol (1 : 4) and 10% water in relation to the mass of oil, varying the temperature (298-333 K), and obtaining an increase in k c from 8.22 × 10 −10 to 3.81 × 10 −7 m s −1 .…”

Section: Mass Transfer Coefficientsupporting

confidence: 88%

“…Thus, a variation in flow rate increases the transport rate, conducted by molecular diffusion in the substrate, but an increase in the pore the substrate interstitial velocity decreases the residence time within the PBR, causing a decrease in the concentration of ethyl esters. 21,[42][43][44][45] A study by Meunier et al, 46 on the transesterification reaction in a fixed bed reactor showed that an increase of flow rate from 2.3 × 10 −8 to 33.3 × 10 −8 m 3 s −1 increased the dimensionless numbers and consequently k c from 0.79 × 10 −4 to 1.67 × 10 −4 m s −1 when used for Lipase PS "Amano" SD immobilized on Celite R632.…”

Section: Mass Transfer Coefficientmentioning

confidence: 99%

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Analysis of the Performance of a Packed Bed Reactor to Production Ethyl Esters From Crude Vegetable Oil Using Lipase Immobilized in Silica Modified With Protic Ionic Liquid

Santana¹,

Oliveira²,

Carvalho³

et al. 2018

Quim. Nova

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The objective this study was to evaluated the influence of silica modified with protic ionic liquid (PIL) on an immobilized biocatalyst by covalent binding of Burkholderia cepacia lipase (BCL) in a PBR and in the transesterification reaction, by characterization and mass transfer of the system studied. The results showed that maximum conversion of ethyl esters was 39 ± 1.73% at 96 h (IB on control silica) and 47 ± 2.0% in 72 h (IB on modified silica). The PIL also influenced the analysis of residence time distribution (RTD) with the mean time ranging from 14.94 (control silica) to 25 min (modified silica). Variation of the reaction parameters (temperature, flow rate and molar ratio) positively influenced the mass transfer coefficient (kc) which varied from 0.95 × 10 −4 to 2.39 × 10 −4 m s −1 (IB on control silica) and from 1.22 × 10 −4 to 3.06 × 10 −4 m s −1 (IB on modified silica).

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Section: Mass Transfer Coefficientsupporting

confidence: 88%

Section: Mass Transfer Coefficientmentioning

confidence: 99%

Analysis of the Performance of a Packed Bed Reactor to Production Ethyl Esters From Crude Vegetable Oil Using Lipase Immobilized in Silica Modified With Protic Ionic Liquid

Santana¹,

Oliveira²,

Carvalho³

et al. 2018

Quim. Nova

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show abstract

“…It is well documented in the scientific literature that the enzyme catalyzed transesterification reaction to produce biodiesel (FAME) proceeds via the Ping-Pong Bi-Bi mechanism (Cheirsilp et al, 2008;Fedosov et al, 2013;Fjerbaek et al, 2009;Tran et al, 2014). However, we noticed from our results that the majority of the reaction could in fact be described solely by first order kinetics, greatly simplifying analysis.…”

Section: Resultsmentioning

confidence: 68%

Scale‐up of industrial biodiesel production to 40 m³ using a liquid lipase formulation

Price

Nordblad

Martel³

et al. 2016

Biotech & Bioengineering

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In this work, we demonstrate the scale-up from an 80 L fed-batch scale to 40 m 3 along with the design of a 4 m 3 continuous process for enzymatic biodiesel production catalysed by NS-40116 (a liquid formulation of a modified Thermomyces lanuginosus lipase). Based on the analysis of actual pilot plant data for the transesterification of used cooking oil and brown grease, we propose a method applying first order integral analysis to fed-batch data based on either the bound glycerol or free fatty acid content in the oil. This method greatly simplifies the modelling process and gives an indication of the effect of mixing at the various scales (80L to 40m 3 ) along with the prediction of the residence time needed to reach a desired conversion in a CSTR.Suitable process metrics reflecting commercial performance such as the reaction time, enzyme efficiency and reactor productivity were evaluated for both the fed-batch and CSTR cases. Given similar operating conditions, the CSTR operation on average, has a reaction time which is 1.3 times greater than the fed-batch operation.We also showed how the process metrics can be used to quickly estimate the selling price of the enzyme. Assuming a biodiesel selling price of 0.6 USD/kg and a one-time use of the enzyme (0.1 % (w/w oil ) enzyme dosage); the enzyme can then be sold for 30 USD/kg which ensures that that the enzyme cost is not more than 5 % of the biodiesel revenue. This article is protected by copyright. All rights reserved

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“…Less positive results were reported for the lipase promoted process [62,63]. Conversion was limited to 67%, likely due to accumulation of glycerol which inactivated the lipase.…”

Section: -Organometallic and Enzyme-catalysed Reactions In Organic Symentioning

confidence: 93%

Continuous flow (micro-)reactors for heterogeneously catalyzed reactions: Main design and modelling issues

Rossetti

2018

Catalysis Today

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Modeling the methanolysis of triglyceride catalyzed by immobilized lipase in a continuous-flow packed-bed reactor

Cited by 15 publications

References 40 publications

Analysis of the Performance of a Packed Bed Reactor to Production Ethyl Esters From Crude Vegetable Oil Using Lipase Immobilized in Silica Modified With Protic Ionic Liquid

Analysis of the Performance of a Packed Bed Reactor to Production Ethyl Esters From Crude Vegetable Oil Using Lipase Immobilized in Silica Modified With Protic Ionic Liquid

Scale‐up of industrial biodiesel production to 40 m³ using a liquid lipase formulation

Continuous flow (micro-)reactors for heterogeneously catalyzed reactions: Main design and modelling issues

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Modeling the methanolysis of triglyceride catalyzed by immobilized lipase in a continuous-flow packed-bed reactor

Cited by 15 publications

References 40 publications

Analysis of the Performance of a Packed Bed Reactor to Production Ethyl Esters From Crude Vegetable Oil Using Lipase Immobilized in Silica Modified With Protic Ionic Liquid

Analysis of the Performance of a Packed Bed Reactor to Production Ethyl Esters From Crude Vegetable Oil Using Lipase Immobilized in Silica Modified With Protic Ionic Liquid

Scale‐up of industrial biodiesel production to 40 m3 using a liquid lipase formulation

Continuous flow (micro-)reactors for heterogeneously catalyzed reactions: Main design and modelling issues

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Product

Resources

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Scale‐up of industrial biodiesel production to 40 m³ using a liquid lipase formulation