Determination of ecological efficiency in internal combustion engines: The use of biodiesel

Coronado, Christian R.; Carvalho, João Andrade de; Yoshioka, Juliana Tiyoko; Silveira, José Luz

doi:10.1016/j.applthermaleng.2008.10.012

Cited by 69 publications

(32 citation statements)

References 10 publications

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“…It is a carbon neutral fuel because there is no overall increase in CO2 in the atmosphere due to recycling by the growing plants used to feed the biodiesel industry (Lebedevas et al, 2008;Ma and Hanna, 1999). Emissions of SO2, SO3, CO, unburnt hydrocarbons and particulate matter are lower than that of petroleum diesel (Coronado et al, 2009;Ma and Hanna, 1999).The most common process used to produce biodiesel is through transesterification, a reaction between triglycerides and an alcohol with a low molecular weight (ethanol or methanol) in the presence of a basic catalyst (NaOH or KOH), to obtain esters and glycerol (Knothe et al, 2006;Mata et al, 2010 and.Transesterification is a three-step reversible reaction of vegetable oils or animal fats with a methanol to form fatty acid methyl esters (FAMEs) and glycerol as a final product (Morais et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Mango (Magnifera indica) seed oil grown in Dilla town as potential raw material for biodiesel production using NaOH- a homogeneous catalyst

Int¹

2019

Preprint

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Biodiesel produced by transesterification process from vegetable oils or animal fats is viewed as a promising renewable energy source. Now a day's diminishing of petroleum reserves in the ground and increasing environmental pollution prevention and regulations have made searching for renewable oxygenated energy sources from biomasses. Biodiesel is non-toxic, renewable, biodegradable, environmentally benign, energy efficient and diesel substituent fuel used in diesel engine which contributes minimal amount of global warming gases such as CO, CO2, SO2, NOX, unburned hydrocarbons, and particulate matters. The chemical composition of the biodiesel was examined by help of GC-MS and five fatty acid methyl esters such as methyl palmitate, methyl stearate, methyl oleate, methyl linoleate and methyl linoleneate were identified. The variables that affect the amount of biodiesel such as methanol/oil molar ratio, mass weight of catalyst and temperature were studied. In addition to this the physicochemical properties of the biodiesel such as (density, kinematic viscosity, iodine value high heating value, flash point, acidic value, saponification value, carbon residue, peroxide value and ester content) were determined and its corresponding values were 87 Kg/m 3 , 5.63 Mm 2 /s, 39.56 g I/100g oil, 42.22 MJ/Kg, 132 o C, 0.12 mgKOH/g, 209.72 mgKOH/g, 0.04%wt, 12.63 meq/kg, and 92.67 wt% respectively. The results of the present study showed that all physicochemical properties lie within the ASTM and EN biodiesel standards. Therefore, mango seed oil methyl ester could be used as an alternative to diesel engine. Capsule Summary:The biodiesel production efficiency from mango seed oil was evaluated. methylpalmitate, methyl stearate, methyl oleate, methyl linoleate and methyl linoleneate were the main components of the biodiesel and mango seed oil methyl ester could be used as an alternative energy resource in diesel engine.Cite This Article As: T. Hiwot. Mango (Magnifera indica) seed oil grown in Dilla town as potential raw material for biodiesel production using NaOH-a homogeneous catalyst. Chemistry International 4(4) (2018) 198-205.

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Section: Introductionmentioning

confidence: 99%

Mango (Magnifera indica) seed oil grown in Dilla town as potential raw material for biodiesel production using NaOH- a homogeneous catalyst

Int¹

2019

Preprint

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“…The biodiesel is a renewable fuel, biodegradable, nontoxic, easy to produce and manufactured with raw materials of agricultural origin [1], [2]. For these motives, this product is an attractive alternative to the mineral diesel oil.…”

Section: Introductionmentioning

confidence: 99%

Biodiesel from Soybean Oil Transesterification Assisted by Ultrasonic Irradiation

Martín¹,

Martínez²,

González³

et al. 2015

IJESD

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Abstract-Biodiesel has been produced by transesterification of soybean oil by methanol. This reaction, heterogeneous, only takes place in the interphase alcohol triglyceride. Lowfrequency ultrasonic irradiation produces an emulsion of the two immiscible liquids, improving mass transfer and getting that the chemical reaction controls the kinetic of the process. This causes an increase of the reaction rate, decreasing time of reaction.Abatch and a continuous process were carried out, using potassium hydroxide as catalyst. A Branson processor of 20 kHz was used in all of the experiments. In the batch process methanol: oil molar ratio (3:1 to 15:1), maximum temperature (70 and 100 º C) and ultrasound amplitude (40 to 100%) were studied. In the continuous process, methanol: oil molar ratio (6:1, 12:1 and 15:1) and catalyst concentration (0.28 to 0.70 g.mL -1 ) were evaluated. In the first process, MeOH:oil molar ratio influenced on the yield, while temperature did not exercise influence. Amplitude affected reaction rate, but the conversion achieved was similar after 15 minutes. In the continuous process, the MeOH:oil molar ratio influenced in the reaction, while the concentration of catalyst had a positive effect only to low residence times.

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“…Emissions of SO 2 , SO 3, CO, un burnt hydrocarbons and particulate matter are lower than that of petroleum diesel [2,3].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Chemical Composition, Characterization and Determination of Energy Content for Renewable Energy Source (Biodiesel) Produced from Non-Edible Ethiopian Seeds’ Particularly Castor Seed (<i>Ricinus communis</i>) Using Homogeneous Catalysis

Hiwot

2014

ILCPA

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Biodiesel is a clean, renewable, biodegradable, environmentally benign, energy efficient and diesel substituent fuel used in diesel engine. It provides a feasible solution to the twin crises of fossil fuel depletion and environmental pollution. It is produced from renewable sources such as vegetable oils or animal fats by trans-esterification. Although this fuel has gained worldwide recognition for many years, it is not being widely commercialized like petroleum diesel in the world, not widely produced and used especially in our country Ethiopia. Analysis of fatty acid methyl ester composition of the biodiesel produced from castor oil was done with the help of GC-MS and 8 fatty acid methyl esters were identified. Acid and base catalyzed methods were used in the synthesis of biodiesel from castor seed oil. In addition to this the variables that affect the amount of methyl ester yield were determined and an optimum of 96.7 % fatty acid methyl ester (FAME) conversion was obtained at a methanol to oil molar ratio of 6:1, 1.0 % mass NaOH, 65 °C reaction temperature and 3 hour reaction time. The energy content of the oil and biodiesel were 39 MJ/Kg and 40.7 MJ/ Kg respectively which is determined by bomb calorimeter. Other physicochemical properties of the biodiesel were determined and all these lie within the ASTM and EN biodiesel standards except kinematic viscosity. Therefore, castor seed oil methyl ester could be used as an alternative energy resource in diesel engine by blending with petroleum diesel.

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Determination of ecological efficiency in internal combustion engines: The use of biodiesel

Cited by 69 publications

References 10 publications

Mango (Magnifera indica) seed oil grown in Dilla town as potential raw material for biodiesel production using NaOH- a homogeneous catalyst

Mango (Magnifera indica) seed oil grown in Dilla town as potential raw material for biodiesel production using NaOH- a homogeneous catalyst

Biodiesel from Soybean Oil Transesterification Assisted by Ultrasonic Irradiation

Investigation of the Chemical Composition, Characterization and Determination of Energy Content for Renewable Energy Source (Biodiesel) Produced from Non-Edible Ethiopian Seeds’ Particularly Castor Seed (<i>Ricinus communis</i>) Using Homogeneous Catalysis

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