Optimization of Alkaline Transesterification of Soybean Oil and Castor Oil for Biodiesel Production

Oliveira, Débora de; Luccio, Marco Di; Faccio, Carina; Rosa, Clarissa Dalla; Bender, João Paulo; Lipke, Nádia; Amroginski, Cristiana; Dariva, Cláudio; Oliveira, J. Vladimir

doi:10.1385/abab:122:1-3:0553

Cited by 58 publications

(32 citation statements)

References 12 publications

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“…Biodiesel with the best properties was obtained using potassium hydroxide as catalyst in many studies (Encinar, et al, 2005;Jeong and Park, 1996;Karmee, 2005;Dorado, et al, 2004;Dorado, et al, 2002;Darnoko and Cheryman, 2000;Ugheoke, et al, 2007;El-Mashad, et al, 2006). Besides, many other studies achieved best results using NaOH (Felizardo, et al, 2006;Vicente, et al, 2004;Cheng, et al, 2004;de Oliveira, 2005). Methanolysis with 1% wt.…”

Section: Introductionmentioning

confidence: 99%

“…The source for biodiesel production is chosen according to the availability in each region or country. Any fatty acid source may be used to prepare biodiesel, but in the scientific articles reviewed, transesterification reactions have been studied for many vegetable oils such as soybean (de Oliveira, 2005), rapeseed (Jeong and Park, 1996), sunflower (Vicente, et al, 2004), safflower (Meka, et al, 2007), canola (Singh, et al, 2006), palm (Darnoko and Cheryman, 2000;Cheng, et al, 2004) and fish oil (El Mashad, et al, 2006). Since the prices of edible vegetable oils, e.g.…”

Section: Introductionmentioning

confidence: 99%

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Production optimization and quality assessment of biodiesel from waste vegetable oil

Refaat

Attia

Sibak

et al. 2007

Int. J. Environ. Sci. Technol.

179

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Biodiesel production is worthy of continued study and optimization of production procedures because of its environmentally beneficial attributes and its renewable nature. In Egypt, millions L. of oil used for frying foods are discarded each year into sewage systems. Thus, it adds to the cost of treating effluent or pollutes waterways. This study is intended to consider aspects related to the feasibility of the production of biodiesel from waste/recycled oils in an attempt to help reduce the cost of biodiesel and reduce waste and pollution coming from waste oils. The variables affecting the yield and characteristics of the biodiesel produced from used frying oil were studied, the achieved results were analyzed and a set of recommendations was proposed. From the obtained results, the best yield percentage was obtained using a methanol/oil molar ratio of 6:1, potassium hydroxide as catalyst (1%) and 65 °C temperature for one hour. The yield percentage obtained from waste vegetable oil was comparable to that obtained from neat vegetable oil which reached 96.15% under optimum conditions. From the results it was clear that the produced biodiesel fuel, whether from neat vegetable oil or waste vegetable oil, was within the recommended standards of biodiesel fuel.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Production optimization and quality assessment of biodiesel from waste vegetable oil

Refaat

Attia

Sibak

et al. 2007

Int. J. Environ. Sci. Technol.

179

View full text Add to dashboard Cite

show abstract

“…Biodiesel with the best properties was obtained using KOH as catalyst in many studies (Encinar et al, 2006;Jeong & Park, 1996;Darnoko & Cheryman, 2000;Ugheoke et al, 2007;El Mashad et al, 2006). Besides, many other studies achieved best results using NaOH (Felizardo et al, 2006;Vicente et al, 2004;Cheng et al, 2004;de Oliveira et al, 2005). Methanolysis with 1% wt of either NaoH or KOH catalyst resulted in successful conversion giving the best yields and viscosities of the esters in most of the literature reviewed.…”

Section: Discussionmentioning

confidence: 99%

Blend Characteristics of Biodiesel Obtained from Four Virgin Tropical Seed Oils

Igbum¹,

Leke²,

Ubwa³

2013

IJC

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Four feedstocks comprising two non-edible oils (Telfairia occidentals Hook F, (TVO) and Hura crepitians L (HVO)) and two edible oils Cucumeropsis manii Naud (CSVO) and Canarium schweinfurthii Engl. (CVO) were studied for production of methyl esters (biodiesel). Base catalysis was used for the transesterification reaction with methanol at different oil/alcohol molar ratios (4:1, 6:1 and 9:1). Two catalyst types; KOH and NaOH were used. Reaction times of 5 and 30 mins; temperatures of 38 and 55 o C and a constant catalyst concentration of 1% wt/wt were employed. These process variables were used to achieve optimum biodiesel yields of 97%, (TVO and HVO); 94% and 96% (CSVO) and (CVO) respectively. Their viscosities ranged from 3.60-4.80 mm 2 /s and specific gravities from 0.87-0.88g/cm 3 . The specific gravities and viscosities of the blended biodiesel; B5, B10, B15 ranged from 0.960-0.930g/cm 3 and B20, 1.620-1.650 g/cm 3 , the pour points ranged from -18 to -21. Water and sediments for all the blends were ≤0.05.

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“…Depending on the origin and quality of feedstocks, changes may be required for the production process of biodiesel. The use of plant oils as biodiesel feedstocks has been long recognized and well documented in numerous studies (Abdullah et al, 2009;de Oliveira et al, 2005;Graef et al, 2009;Hawash et al, 2009;Hill et al, 2006;Jain & Sharma, 2010;Nakpong & Wootthikanokkhan, 2010;Patil & Deng, 2009;Rashid & Anwar, 2008;Sahoo & Das, 2009;Saka & Kusdiana, 2001). These feedstocks include the oils from soybean, rapeseed, palm, canola, peanut, cottonseed, sunflower and safflower.…”

Section: Introductionmentioning

confidence: 99%