Production of biodiesel with glycerol carbonate by non‐catalytic supercritical dimethyl carbonate

Ilham, Zul; Saka, Shiro

doi:10.1002/lite.201100076

Cited by 24 publications

(11 citation statements)

References 6 publications

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“…In fact, the process operates with the same basic catalysts described in the production of biodiesel, such as KOH, sodium methylate, sodium hydride, some amines, as well as different alkaline solids, operating as heterogeneous base catalysts at different experimental conditions [196][197][198][199][200][201][202][203][204][205][206][207][208][209][210][211][212][213][214]. Given the interest of the process, supercritical conditions [215][216][217][218][219][220][221][222] or the use of different lipases [223][224][225][226][227][228][229][230][231][232][233][234][235][236][237][238][239] have also been studied. DMC has been recently investigated in regards to the synthesis of fatty acid methyl esters via ionic liquids [240,…”

Section: Biodiesel-like Biofuels That Integrate the Glycerol As Glycementioning

confidence: 99%

Biodiesel at the Crossroads: A Critical Review

et al. 2019

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The delay in the energy transition, focused in the replacement of fossil diesel with biodiesel, is mainly caused by the need of reducing the costs associated to the transesterification reaction of vegetable oils with methanol. This reaction, on an industrial scale, presents several problems associated with the glycerol generated during the process. The costs to eliminate this glycerol have to be added to the implicit cost of using seed oil as raw material. Recently, several alternative methods to convert vegetable oils into high quality diesel fuels, which avoid the glycerol generation, are being under development, such as Gliperol, DMC-Biod, or Ecodiesel. Besides, there are renewable diesel fuels known as “green diesel”, obtained by several catalytic processes (cracking or pyrolysis, hydrodeoxygenation and hydrotreating) of vegetable oils and which exhibit a lot of similarities with fossil fuels. Likewise, it has also been addressed as a novel strategy, the use of straight vegetable oils in blends with various plant-based sources such as alcohols, vegetable oils, and several organic compounds that are renewable and biodegradable. These plant-based sources are capable of achieving the effective reduction of the viscosity of the blends, allowing their use in combustion ignition engines. The aim of this review is to evaluate the real possibilities that conventional biodiesel has in order to success as the main biofuel for the energy transition, as well as the use of alternative biofuels that can take part in the energy transition in a successful way.

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Section: Biodiesel-like Biofuels That Integrate the Glycerol As Glycementioning

confidence: 99%

Biodiesel at the Crossroads: A Critical Review

et al. 2019

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“…Overall, the FAMEs from the scDMC method satisfied all the requirements for international biodiesel standards except the specification regarding oxidation stability, which is an important parameter for preventing deterioration. However, this problem could be diminished by the addition of an antioxidant or by using oils containing lower levels of unsaturated fatty acids [ 68 ].…”

Section: Non-catalytic Biodiesel Synthesis By Supercritical Fluid mentioning

confidence: 99%

“…This glycerol conversion process was coupled with hydrolyzed fatty acids conversion into FAMEs to establish the two-step supercritical dimethyl carbonate method (Saka and Ilham Process). The non-catalytic two-step supercritical dimethyl carbonate method is a good process to produce high yields of FAMEs, even from oils with high levels of unsaturated fatty acids, together with a value added by-product, glycerol carbonate, under non-acidic and mild reaction conditions [ 68 ].…”

Section: Non-catalytic Biodiesel Synthesis By Supercritical Fluid mentioning

confidence: 99%

Supercritical Synthesis of Biodiesel

et al. 2012

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The synthesis of biodiesel fuel from lipids (vegetable oils and animal fats) has gained in importance as a possible source of renewable non-fossil energy in an attempt to reduce our dependence on petroleum-based fuels. The catalytic processes commonly used for the production of biodiesel fuel present a series of limitations and drawbacks, among them the high energy consumption required for complex purification operations and undesirable side reactions. Supercritical fluid (SCF) technologies offer an interesting alternative to conventional processes for preparing biodiesel. This review highlights the advances, advantages, drawbacks and new tendencies involved in the use of supercritical fluids (SCFs) for biodiesel synthesis.

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“…% of the total production [10]. The overproduction of glycerol has led to its significant price decline and a glut of this commodity in the world's market [11,12]. Moreover, the lack of purity in glycerol obtained by transesterification reactions hinders its utilization in the pharmaceutical and cosmetic industries [11].…”

Section: Introductionmentioning

confidence: 99%

“…The overproduction of glycerol has led to its significant price decline and a glut of this commodity in the world's market [11,12]. Moreover, the lack of purity in glycerol obtained by transesterification reactions hinders its utilization in the pharmaceutical and cosmetic industries [11]. In order to solve this technical issue, we have employed dimethyl carbonate (DMC) instead of alcohol for glycerol-free transesterification [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Production of Transformer Insulating Oil and Value-Added Glycerol Carbonates from Soybean Oil by Lipase-Catalyzed Transesterification in Dimethyl Carbonate

Kim

Lee

2017

Energies

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Fatty acid methyl esters (FAMEs), as a transformer insulating oil, and value-added glycerol derivatives were simultaneously synthesized from soybean oil by transesterification using Lipozyme 435 in dimethyl carbonate (DMC). The conversion of transformer insulating oil and glycerol derivatives reached 92% and 72%, respectively, under optimum conditions (DMC-to-oil molar ratio of 4.5:1 with 0.5 v/v % water and 15 wt. % Lipozyme 435 at 70 • C) in one-pot batch reactions. The purified transformer insulating oil possessed a dielectric breakdown voltage of 82.0 kV, which is sufficiently high for transformer insulation oil applications. Other properties such as density, dielectric breakdown voltage, and viscosity were comparable or superior to those of mineral oil, confirming that achieved material could be used as an alternative transformer insulating oil. Additionally, the glycerol was simultaneously converted into glycerol derivatives, which can be utilized as ingredients for cosmetics or monomers for bio-based plastics. This study clearly demonstrates that transformer insulating oil and value-added glycerol derivatives were simultaneously produced based on the zero-waste utilization of soybean oil.

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Production of biodiesel with glycerol carbonate by non‐catalytic supercritical dimethyl carbonate

Cited by 24 publications

References 6 publications

Biodiesel at the Crossroads: A Critical Review

Biodiesel at the Crossroads: A Critical Review

Supercritical Synthesis of Biodiesel

Simultaneous Production of Transformer Insulating Oil and Value-Added Glycerol Carbonates from Soybean Oil by Lipase-Catalyzed Transesterification in Dimethyl Carbonate

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