Membrane dehydration-enhanced esterification for biodiesel production from a potential feedstock of Firmiana platanifolia L.f. seed oil

Lv, Enmin; Dou, Tong; Ding, Shaoxuan; Lü, Jie; Li, Zhuang; Yi, Weiming; Li, Jianxin; Ding, Jincheng

doi:10.1016/j.cherd.2019.10.020

Cited by 15 publications

(11 citation statements)

References 49 publications

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“…As a second option, simultaneous water removal, once the esterification reaction takes place, is a preferred method; herein, PV can be involved in situ and ex situ modes. Lv et al [ 91 ], for instance, employed PV to shift the reaction equilibrium of esterification for biodiesel production. At this point, a NaA zeolite membrane was proposed for the simultaneous water elimination from the reactor; free fatty acid conversion rates were found as high as 99% using PV technology (ethanol: oil molar ratio = 15:1, catalyst dosage = 40 wt.%, temperature = 78 °C, over 7 h).…”

Section: Latest Insights Into Zeolite-based Membranes For Pervapormentioning

confidence: 99%

Pervaporation Zeolite-Based Composite Membranes for Solvent Separations

Castro-Muñoz

Boczkaj

2021

Molecules

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Thanks to their well-defined molecular sieving and stability, zeolites have been proposed in selective membrane separations, such as gas separation and pervaporation. For instance, the incorporation of zeolites into polymer phases to generate composite (or mixed matrix) membranes revealed important advances in pervaporation. Therefore, the goal of this review is to compile and elucidate the latest advances (over the last 2-3 years) of zeolite applications in pervaporation membranes either combining zeolites or polymers. Here, particular emphasis has been focused on relevant insights and findings in using zeolites in pervaporative azeotropic separations and specific aided applications, together with novel concepts of membranes. A brief background of the pervaporation process is also given. According to the findings of this review, we provide future perspectives and recommendations for new researchers in the field.

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Section: Latest Insights Into Zeolite-based Membranes For Pervapormentioning

confidence: 99%

Pervaporation Zeolite-Based Composite Membranes for Solvent Separations

Castro-Muñoz

Boczkaj

2021

Molecules

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“…Currently, there is a great controversy about the use of vegetable oils with nutritional value as lipid raw material for the biodiesel production, due to the enormous demand that exist (Lv et al, 2020), for which, various studies have been have oriented to the search for lipid raw materials that do not have a nutritional value, as is the case of used cooking oil, which is a highly polluting waste and available in large quantities (Khodadadi et al, 2020). Cooking oil changes its chemical composition when subjected to high temperatures and when it comes into contact with moisture and other substances from food.…”

Section: Lipid Raw Materialsmentioning

confidence: 99%

“…Biodiesel is currently considered one of the most viable options coming from a renewable and clean energy source, since it can be synthesized from various vegetable and / or animal fats (Borah et al, 2019). In addition, it can be used in diesel engines, because biodiesel has physicochemical properties similar to petroleum diesel (Lv et al, 2020). However, the main challenge to face in the biodiesel synthesis, lies in the decrease of its production cost, as well as looking for alternatives to replace edible oils as a raw lipid source (Khan et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Bifunctional catalysts applied to produce biodiesel from waste cooking oil

Cerón-Ferrusca¹,

Romero²,

Natividad³

et al. 2021

CIERMMI Women in Science Engineering and Technology TXV

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This work aims to present the analysis of the catalytic performance of Fe2O3/CaO as a bifunctional catalyst in the production of biodiesel from waste cooking oil. The clamshell was used as a source of calcium oxide by calcination. The catalyst was characterized by Thermogravimetric analysis and Differential scanning calorimetry (TGA-DSC), X-ray diffraction (XRD) and Inductively coupled plasma atomic emission spectroscopy (ICP-AES). The catalytic tests were conducted at 55 °C, the methanol:oil ratio was 12:1, amount of catalyst of 6%wt and reaction time of 5 h. The content of methyl esters in the produced biodiesel was >98% and was found to fulfill the specifications of European Norm UNE-EN 14214.

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“…In addition to efficient separation, pervaporation process provides other benefits such as a simple design, compact space, easy operation and maintenance, low energy consumption, etc., [ 3 , 4 , 5 ]. These advantages lead to a wide application of areas for pervaporation: organic solvent/water separation [ 6 ], the removal of volatile organic compounds (VOCs) from water [ 7 ], aromatic/aliphatic hydrocarbon separation [ 8 ], dehydration to enhanced esterification [ 9 ], dehydration of glycerin solution [ 10 ], azeotropic solvent purification [ 11 , 12 ], acetone butanol ethanol (ABE) recovery in fermentation process [ 13 ], and so on.…”

Section: Introductionmentioning

confidence: 99%

Alicyclic Polyimide/SiO2 Mixed Matrix Membranes for Water/n-Butanol Pervaporation

Hsieh

Suen

2021

Membranes

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Alicyclic polyimides (PIs) have excellent properties in solubility, mechanical strength, thermal property, etc. This study developed two types of alicyclic PI-based mixed matrix membranes (MMMs) for water/n-butanol pervaporation application, which have never been investigated previously. The fillers were hydrophilic SiO2 nanoparticles. The synthesized PI was mixed with SiO2 nanoparticles in DMAc to make the casting solution, and a liquid film was formed over PET substrate using doctor blade. A dense MMM was fabricated at 80 °C and further treated via multi-stage curing (100–170 °C). The prepared membranes were characterized by FTIR, TGA, FE-SEM, water contact angle, and solvent swelling. The trends of pure solvent swelling effects agree well with the water contact angle results. Moreover, the pervaporation efficiencies of alicyclic PI/SiO2 MMMs for 85 wt% n-butanol aqueous solution at 40 °C were investigated. The results showed that BCDA-3,4′-ODA/SiO2 MMMs had a larger permeation flux and higher separation factor than BCDA-1,3,3-APB/SiO2 MMMs. For both types of MMMs, the separation factor increased first and then decreased, with increasing SiO2 loading. Based on the PSI performance, the optimal SiO2 content was 0.5 wt% for BCDA-3,4′-ODA/SiO2 MMMs and 5 wt% for BCDA-1,3,3-APB/SiO2 MMMs. The overall separation efficiency of BCDA-3,4′-ODA-based membranes was 10–30-fold higher.

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Membrane dehydration-enhanced esterification for biodiesel production from a potential feedstock of Firmiana platanifolia L.f. seed oil

Cited by 15 publications

References 49 publications

Pervaporation Zeolite-Based Composite Membranes for Solvent Separations

Pervaporation Zeolite-Based Composite Membranes for Solvent Separations

Bifunctional catalysts applied to produce biodiesel from waste cooking oil

Alicyclic Polyimide/SiO2 Mixed Matrix Membranes for Water/n-Butanol Pervaporation

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