Biodiesel Production from Used Cooking Oil

Wong, Y. C.; Devi, S.

doi:10.13005/ojc/300216

Cited by 9 publications

(7 citation statements)

References 14 publications

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“…The use of acid and base catalysts has been widely published both as homogeneous and heterogeneous catalysts. Homogeneous catalysts are strong acids or bases [10][11][12][13][14] . The main advantages of homogeneous catalyst include simple operating conditions, high activity and relatively short reaction time.…”

Section: Introductionmentioning

confidence: 99%

Influence of Kinetic Variables on Rubber Seed Oil Transesterification Using Bifunctional Catalyst CaO-MgO/SiO2

Pandiangan¹,

Simanjuntak²,

Rilyanti³

et al. 2017

Orient. J. Chem

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In this study, syntheses of bifunctional catalyst (CaO-MgO/SiO 2 ) with different ratios of CaO: MgO:SiO 2 of 1:1:3 and 1:1:5 were carried out by sol-gel method. The catalysts were subjected to calcination temperatures of 500, 600, 700, 800, 900 o C for 6 h at peak temperatures, and then tested as catalyst in a series of transesterification of rubber seed oil without and with the use of coconut oil as co-reactant. Several kinetic variables of transesterification were also investigated. The results revealed that the catalyst with the composition of CaO-MgO/SiO 2 1:1:5 and subjected to calcination temperature of 800°C functioned as the most active catalyst. The highest percent of conversion 90% was resulted from the experiment with the use of 5% catalyst, 50 mL methanol, 10% co-reactant, temperature of 70 o C and reaction time of 6 hours.

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Section: Introductionmentioning

confidence: 99%

Influence of Kinetic Variables on Rubber Seed Oil Transesterification Using Bifunctional Catalyst CaO-MgO/SiO2

Pandiangan¹,

Simanjuntak²,

Rilyanti³

et al. 2017

Orient. J. Chem

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“…It is well known that product of bioethanol as well as biodiesel relies on specific substrates, i.e. reducing sugar for production of bioethanol 1,2,3 , and vegetable oils 4,5 or animal fats 6,7 for production of biodiesel. Pyrolysis, on the other hand, is not limited by the raw material, in a sense that this technique could be applied to any type of biomass, thus offering unlimited opportunity for intensive development of the technique to enable the production of liquid fuels.…”

Section: Introductionmentioning

confidence: 99%

Hydrocarbon Rich Liquid Fuel Produced by Co-pyrolysis of Sugarcane Bagasse and Rubber Seed Oil Using Aluminosilicates Derived from Rice Husk Silica and Aluminum Metal as Catalyst

Simanjuntak¹,

Sembiring²,

Pandiangan³

et al. 2017

Orient. J. Chem

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In this investigation, a mixture of sugarcane bagasse and rubber seed oil was subjected to pyrolysis for liquid fuel production, using aluminosilicates with different Si/Al ratios as catalysts prepared from rice husk silica and aluminum metal by electrochemical method. A series of pyrolysis experiments was conducted at the temperature range of 250 to 500 o C, with the main purpose to investigate the effect of the Si/Al ratios of the catalysts on the chemical composition of liquid fuels produced. The liquid fuels produced were analyzed using gas chromatography-mass spectrometry (GC-MS) technique for component identification. The experimental results show that the most intense production of liquid took place at the temperature range of 350 to 480 o C, while at lower temperatures gaseous product emerged as the main product. Analysis of the product using GC-MS technique revealed the presence of a series of compounds in the liquids, and broadly belongs to hydrocarbon, alcohol, ester, ketone, aldehyde, and acid. The results display significant effect of the catalyst composition on the composition of the liquids. The main trend observed is the tendency of increased the hydrocarbon content with decreased the Si/Al ratio of the catalyst, down to the ratio of 2.3 which produced liquid fuel with the highest hydrocarbon content 86%.

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“…Nevertheless, the amount and the composition of FFA, water and other impurities content in UCO depend on the origin of the oil and cooking conditions. The high content of FFA in the oil is due to the presence of heat during the cooking process (Enweremadu and Mbarawa, 2009;Wong and Devi, 2014). Besides that, UCO comes into contact with microbes during storage and transportation, which can transform the triglycerides in UCO into FFA, and the AV of the oil can increase over 100 mg KOH g -1 .…”

Section: Used Cooking Oilmentioning

confidence: 99%

Synthesis of mesoporous calcium titanate catalyst for transesterification of used cooking oil: A review of the synthesized potential

Yahya¹,

Ngadi²

2020

Int. j. adv. appl. sci.

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Biodiesel is a promising alternative for conventional diesel fuel due to the unsustainable feature of the resources and unstable price of the fuels. However, the production cost is higher compared to the conventional ones and is significantly contributed from the feedstock. Realizing that a large portion of used cooking oil (UCO) is generated daily, this review aims to investigate and explore the production of biodiesel from UCO. In the production reaction process, undoubtedly, the catalyst plays an important role. It has been shown that calcium oxide (CaO) is one of the best heterogeneous basic catalysts in the transesterification reaction for biodiesel production. However, the catalyst has a low surface area which restricts the active basic sites to disperse on the catalyst surface. Moreover, CaO catalyst faces leaching problem, poor stability, and porosity which hinder its catalytic activity and reusability. Therefore, in this study, it is aimed to review the potential of titanium as a support catalyst to modify CaO supported titanium with a mesoporous structure (mesoporous calcium titanate) by a sol-gelhydrothermal method to overcome the limitations of CaO catalyst.

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Biodiesel Production from Used Cooking Oil

Cited by 9 publications

References 14 publications

Influence of Kinetic Variables on Rubber Seed Oil Transesterification Using Bifunctional Catalyst CaO-MgO/SiO2

Influence of Kinetic Variables on Rubber Seed Oil Transesterification Using Bifunctional Catalyst CaO-MgO/SiO2

Hydrocarbon Rich Liquid Fuel Produced by Co-pyrolysis of Sugarcane Bagasse and Rubber Seed Oil Using Aluminosilicates Derived from Rice Husk Silica and Aluminum Metal as Catalyst

Synthesis of mesoporous calcium titanate catalyst for transesterification of used cooking oil: A review of the synthesized potential

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