Optimization of DMC Transesterification Based Biodiesel Production

Ali, Nur Amirah Mohd; Aziz, N.

doi:10.4028/www.scientific.net/amr.1113.370

Cited by 3 publications

(1 citation statement)

References 14 publications

(16 reference statements)

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“…According to Figure 4, the only difference between DMC-BioD and conventional biodiesel is the presence of fatty acid glycerol carbonate monoesters (FAGCs) in addition to FAMEs [192][193][194][195]. 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]…”

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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Production and kinetic transesterification of biodiesel from yellow grease with dimethyl carbonate using methanesulfonic acid as a catalyst

Panchal

Deshmukh²,

Sharma³

2017

Env Prog and Sustain Energy

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The production of biodiesel from yellow grease containing a low level of free fatty acids was investigated in this study. The kinetic transesterification of a molar ratio of (1:5) yellow grease to dimethyl carbonate was investigated. The experiments were conducted under various kinetic parameters, such as the use of a CH4O3S catalyst, and the effect of the reaction temperature (70°C), time (45 min) and stirring rate (125 rpm) were studied to determine the best possible kinetic conditions. A maximum yellow grease biodiesel yield of 94% was obtained. The properties of the biodiesel, such as the kinematic viscosity at 40°C, specific gravity at 25°C, flash point, pour point, cloud point, and copper strip corrosion level, were tested and found to conform to the biodiesel quality standards ASTM D6751 – 02. This research will provide a highly efficient, cost‐effective, eco‐friendly, and simplified process for one‐step biodiesel production from yellow grease. © 2017 American Institute of Chemical Engineers Environ Prog, 36: 802–807, 2017

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Synthesis of Methyl Esters from Silk Cotton Tree Seed Kernel Oil Using Dimethyl Carbonate and KOH Catalysis

Panchal

Kalaji

Deshmukh

et al. 2018

European Journal of Sustainable Development Research

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Silk cotton seed kernel oil is given as a new source for methyl ester synthesis. Crude silk cotton oil was used as feedstock raw materials for methyl ester production using dimethyl carbonate as solvent and KOH catalysis. The maximum methyl esters yield produced as 97% with a kinematic viscosity (4.25 ± 0.2 5 mm 2 /sec) was reached at 80 °C by boiling a mixture of dimethyl carbonate (DMC) and oil mole ratio as 8:1 with 1.5 wt.% KOH catalyst (oil weight based) for 75 min. The produced products were analyzed using gas chromatography-mass spectrometry to identify the methyl esters. The properties of the methyl esters from silk cottonseed kernel oil produced met the specifications of ASTM for methyl esters. The kinetics of the KOH-catalyzed transesterification of diglyceride (DG) and triglyceride (TG) with DMC were studied at 40 to 90 °C. We found that the activation energies for transesterification of diglycerides and triglycerides were 89.8 and 83.3 kJ/mol, respectively. The results showed that all the reaction variables studied had beneficial effects.

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Optimization of DMC Transesterification Based Biodiesel Production

Cited by 3 publications

References 14 publications

Biodiesel at the Crossroads: A Critical Review

Biodiesel at the Crossroads: A Critical Review

Production and kinetic transesterification of biodiesel from yellow grease with dimethyl carbonate using methanesulfonic acid as a catalyst

Synthesis of Methyl Esters from Silk Cotton Tree Seed Kernel Oil Using Dimethyl Carbonate and KOH Catalysis

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