Optimization of alkaline transesterification of rice bran oil for biodiesel production using response surface methodology

Rashid, Umer; Anwar, Farooq; Ansari, Tariq Mahmood; Arif, Muhammad; Ahmad, Mushtaq

doi:10.1002/jctb.2191

Cited by 71 publications

(31 citation statements)

References 19 publications

(18 reference statements)

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“…According to the present analysis, the acid value, peroxide value, iodine value, density, refractive index, saponification value and unsaponifiable matter were found to be 0.72 ± 0.16 mg KOH/g of oil, 6.51 ± 0.29 meq O 2 /kg of oil, 120.4 ± 1.5 g I 2 /100 g of oil, 0.919 ± 0.071, 1.465 ± 0.140 191.1 ± 3.3 mgKOH/g of oil and 0.94 ± 0.05%, respectively for sunflower oil, whereas, 23.0 ± 0.09 mgKOH/g of oil, 7.72 ± 1.01 meqO 2 /kg of oil, 112.35 ± 1.78 g I 2 /100 g of oil, 0.916 ± 0.045, 1.478 ± 0.006, 186.9 ± 2.8 mg KOH/g of oil and 1.87 ± 0.15%, respectively for rice bran oil (Table 1). Rashid et al [21] reported an acid value of 0.70 mg KOH/g of oil for sunflower oil, so the acid value of sunflower oil as estimated in the current research work was seen to be comparable with the former results, whereas, the acid value of rice bran oil was found to be lower than that (32.9 mg KOH/g of oil) reported by Rashid et al [22]. The peroxide value of sunflower oil and rice bran oil as measured in this study were somewhat higher than the values of 2.27 meq/kg of oil and 1.73 meq/kg of oil, respectively, as described by Rashid et al [21,22].…”

Section: Resultssupporting

confidence: 72%

“…Rashid et al [21] reported an acid value of 0.70 mg KOH/g of oil for sunflower oil, so the acid value of sunflower oil as estimated in the current research work was seen to be comparable with the former results, whereas, the acid value of rice bran oil was found to be lower than that (32.9 mg KOH/g of oil) reported by Rashid et al [22]. The peroxide value of sunflower oil and rice bran oil as measured in this study were somewhat higher than the values of 2.27 meq/kg of oil and 1.73 meq/kg of oil, respectively, as described by Rashid et al [21,22]. The iodine value for sunflower oil was revealed to be somewhat lesser than the result, i.e., 127.46 g I 2 /100 g of oil reported by Rashid et al [21] for sunflower oil, whereas, for rice bran oil the peroxide value was comparable with the result i.e., 113.01 g I 2 /100 g of oil investigated by Rashid et al [22].…”

Section: Resultssupporting

confidence: 72%

“…The peroxide value of sunflower oil and rice bran oil as measured in this study were somewhat higher than the values of 2.27 meq/kg of oil and 1.73 meq/kg of oil, respectively, as described by Rashid et al [21,22]. The iodine value for sunflower oil was revealed to be somewhat lesser than the result, i.e., 127.46 g I 2 /100 g of oil reported by Rashid et al [21] for sunflower oil, whereas, for rice bran oil the peroxide value was comparable with the result i.e., 113.01 g I 2 /100 g of oil investigated by Rashid et al [22]. Saponification value of sunflower oil was found to be comparable to the saponification value i.e., 188.60 mgKOH/g of oil as described by Rashid et al [21].…”

Section: Resultscontrasting

confidence: 65%

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Response Surface Methodology: An Emphatic Tool for Optimized Biodiesel Production Using Rice Bran and Sunflower Oils

et al. 2012

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Abstract:The current study describes the emphatic use of response surface methodology for the optimized biodiesel production using chemical and enzymatic transesterification of rice bran and sunflower oils. Optimal biodiesel yields were determined to be 65.3 ± 2.0%, 73.4 ± 3.5%, 96.5 ± 1.6%, 89.3 ± 2.0% and 41.7 ± 3.9% for rice bran oil and 65.6 ± 1.2%, 82.1 ± 1.7%, 92.5 ± 2.8%, 72.6 ± 1.6% and 50.4 ± 2.5% for sunflower oil via the transesterification catalyzed by NaOH, KOH and NaOCH 3 ,NOVOZYME-435 and A.n. Lipase, respectively. Based upon analysis of variance (ANOVA) and Response Surface plots significant impact of reaction parameters under study was ascertained. FTIR spectroscopic and HPLC methods were employed for monitoring the transesterification reaction progress while GC-MS analysis was performed to evaluate the compositional analysis of biodiesel. The fuel properties of both the rice bran and sunflower oil based biodiesel were shown to be technically compatible with the ASTM D6751 and EN 14214 OPEN ACCESSEnergies 2012, 5 3308 standards. The monitoring of exhaust emission of synthesized biodiesels and their blends revealed a marked reduction in carbon monoxide (CO) and particulate matter (PM) levels, whereas an irregular trend was observed for NO x emissions.

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Section: Resultssupporting

confidence: 72%

Section: Resultssupporting

confidence: 72%

Section: Resultscontrasting

confidence: 65%

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Response Surface Methodology: An Emphatic Tool for Optimized Biodiesel Production Using Rice Bran and Sunflower Oils

et al. 2012

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“…Furthermore, under the same reaction conditions, 67 to 84% ester conversion can be obtained using crude vegetable oils, compared with 94 to 97% when using refined oils [21]. Previous studies on the transesterification of crude oils of tobacco seed [26], karanja [28], sesame [30] and rice bran [42] reported 84, 86, 74 and 83.31% ester yield, respectively. Conclusively, the yield obtained in this present work is within the range of values achieved in previous studies.…”

Section: Biodiesel Yieldmentioning

confidence: 77%

Investigating “Egusi” (Citrullus Colocynthis L.) Seed Oil as Potential Biodiesel Feedstock

2010

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Biodiesel's acceptance as a substitute for fossil-derived diesel has grown the world over. However, the food-fuel debate over conventional vegetable oils has rekindled research interest in exploring lesser known and minor oil crops. In this work, egusi melon seed oil was studied for the first time as a potential feedstock for biodiesel production. Crude egusi melon seed oil was transesterified using sodium methoxide as the catalyst at 60 °C and an oil/methanol ratio of 1:6 to produce its corresponding methyl esters. Egusi melon oil methyl ester (EMOME) yield was 82%. Gas chromatographic analysis of EMOME showed that it was composed mainly of palmitic, stearic, oleic, linoleic and linolenic esters, which is similar to the profile of sunflower, soybean and safflower oil. All the measured fuel properties of EMOME satisfied both the ASTM D6751 and the EN 14214 biodiesel standards. Fuel properties of EMOME were essentially identical with those of soybean, safflower and sunflower biodiesel. Remarkably, the kinematic viscosity of EMOME was measured to be 3.83 mm 2 /s, a value lower than most biodiesel fuels reported in the literature. The potential of egusi melon seed oil as a biodiesel feedstock is clearly presented in this study. OPEN ACCESSEnergies 2010, 3 608

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“…Furthermore, under the same reaction conditions, 67 to 84% ester conversion can be obtained using crude vegetable oils, compared with 94 to 97% when using refined oils [23]. Previous studies on the transesterification of crude oils of tobacco seed [19], karanja [24], sesame [25] and rice bran [26] reported 84, 86, 74 and 83.31% ester yield, respectively.…”

Section: Biodiesel Yieldmentioning

confidence: 77%

Investigation of Echinops Kebericho Mesfin Seed Oil as a Biodiesel Production feedstock: Opportunities from the wilderness / Bir Biyodizel Üretim hammadde olarak Echinops Kebericho Mesfin Tohum Yağı İncelenmesi: El değmeden gelen fırsatlar

Haile

Hishe

Giday

et al. 2016

IJAET

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The major energy sources of the world depend on coal, natural gasses and petroleum which are exhaustible and environmentally unfriendly. Biodiesel is a mono alkyl organic compound of long chain of fatty acids made of oil from plant oils and animal fats that make use of a catalyst and an alcohol, which may be utilized in traditional diesel engines to function as an option for petro-diesel or blended with petro-diesel to diminish emissions. Kebericho seed oil which is endemic to Ethiopia was studied with the objective of investigating as a possible raw material for biodiesel production in this work. The kebericho seed that was extracted at 40 °C exploiting n-hexane as solvent yielded 26.7 %w/w oil. The Crude kebericho seed oil was transesterified at 60 °C for 90 minutes using oil/methanol ratio of 1:6 and 1% weight of KOH as a catalyst, to supply its resultant methyl ester compound. The resultant Kebericho oil methyl ester yield was found 92%. The fatty acid profile determination was carried out using gas chromatographic analysis and Kebericho oil methyl ester showed that it had been largely composed of palmitic, stearic, linoleic, oleic and linolenic esters that are comparable to the profile of sunflower, safflower and soybean oil. The fuel properties of Kebericho oil methyl ester were determined using the international standard for pure biodiesel using ASTM standard and each of the measured Kebericho oil methyl ester fuel properties were satisfied the ASTM D6751 biodiesel standards. Results from this study have clearly suggested the capability of kebericho seed oil as a biodiesel feedstock. Besides, as kebericho is thought to be invasive in Ethiopia, such conceivable outcomes of creating biodiesel from such species could be considered as one future management option with potential noteworthy economic returns and environmental advantages.

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Optimization of alkaline transesterification of rice bran oil for biodiesel production using response surface methodology

Cited by 71 publications

References 19 publications

Response Surface Methodology: An Emphatic Tool for Optimized Biodiesel Production Using Rice Bran and Sunflower Oils

Response Surface Methodology: An Emphatic Tool for Optimized Biodiesel Production Using Rice Bran and Sunflower Oils

Investigating “Egusi” (Citrullus Colocynthis L.) Seed Oil as Potential Biodiesel Feedstock

Investigation of Echinops Kebericho Mesfin Seed Oil as a Biodiesel Production feedstock: Opportunities from the wilderness / Bir Biyodizel Üretim hammadde olarak Echinops Kebericho Mesfin Tohum Yağı İncelenmesi: El değmeden gelen fırsatlar

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