Optimization of biodiesel production from refined cotton seed oil and its characterization

Onukwuli, Dominic O.; Emembolu, Loveth Nwanneka; Ude, Callistus Nonso; Aliozo, Sandra Ogechukwu; Menkiti, Matthew Chukwudi

doi:10.1016/j.ejpe.2016.02.001

Cited by 160 publications

(67 citation statements)

References 3 publications

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“…The effects of the process variables on the FAME conversion were studied by plotting three-dimensional surface curves against any two independent variables while keeping the other variables at their central (0) level [14]. The 3D curves of the response from the effect of independent variables are shown in Figures 5(a)-5(f).…”

Section: Optimization Of Reaction Conditions By Rsmmentioning

confidence: 99%

Response Surface Methodology for Biodiesel Production Using Calcium Methoxide Catalyst Assisted with Tetrahydrofuran as Cosolvent

Chumuang

Punsuvon

2017

Journal of Chemistry

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The present study was performed to optimize a heterogeneous calcium methoxide (Ca(OCH 3 ) 2 ) catalyzed transesterification process assisted with tetrahydrofuran (THF) as a cosolvent for biodiesel production from waste cooking oil. Response surface methodology (RSM) with a 5-level-4-factor central composite design was applied to investigate the effect of experimental factors on the percentage of fatty acid methyl ester (FAME) conversion. A quadratic model with an analysis of variance obtained from the RSM is suggested for the prediction of FAME conversion and reveals that 99.43% of the observed variation is explained by the model. The optimum conditions obtained from the RSM were 2.83 wt% of catalyst concentration, 11.6 : 1 methanol-to-oil molar ratio, 100.14 min of reaction time, and 8.65% v/v of THF in methanol concentration. Under these conditions, the properties of the produced biodiesel satisfied the standard requirement. THF as cosolvent successfully decreased the catalyst concentration, methanol-to-oil molar ratio, and reaction time when compared with biodiesel production without cosolvent. The results are encouraging for the application of Ca(OCH 3 ) 2 assisted with THF as a cosolvent for environmentally friendly and sustainable biodiesel production.

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Section: Optimization Of Reaction Conditions By Rsmmentioning

confidence: 99%

Response Surface Methodology for Biodiesel Production Using Calcium Methoxide Catalyst Assisted with Tetrahydrofuran as Cosolvent

Chumuang

Punsuvon

2017

Journal of Chemistry

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“…When the two polymers were added in sequence -(c) CH→ tannin -did not result in sludge removal, obtaining a residual turbidity exceeding 1100 NTU. The addition of tannin followed cationic hemicellulose -(d) Tannin →CH -provided a residual turbidity of 38 NTU, and a sludge volume of 194 cm 3 . These turbidity and sludge volume values were similar to the treatment with tannin applied in the same dosage, thus no influence of cationic hemicellulose flocculation was observed.…”

Section: Investigation Of the Use Of Cationicmentioning

confidence: 99%

“…Biodiesel has been highlighted due to its chemical and physical properties that resemble to some extent those of diesel, as well as they can be blended with petroleum fuels in various compositions and used in regular engines with little or no modification [1]. Currently, more than 95% of commercial biodiesel has been produced by transesterification from edible oil (e.g., cottonseed, rapeseed, palm, sunflower and soybean) [3]. Transesterification is the triglycerides reaction with fatty acid alkyl esters and low molecular weight alcohols such as methanol and ethanol with or without a catalyst [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…Coagulation-flocculation process aims at agglomerating the impurities which are fine suspensions [12]. Typical coagulating and flocculant agents are inorganic salts such as Al 2 (SO 4 ) 3 or FeCl 3 and synthetic polyacrylamides respectively. Aluminum salts are likely to damage the human body undesirably, e.g., in particular the nervous system a scientifically proven fact and has increasingly become a target in medical research world, which requires strict control concerning the presence of metals in both the drinking water and in spring water [13].…”

Section: Introductionmentioning

confidence: 99%

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Polymeric polyelectrolytes obtained from renewable sources for biodiesel wastewater treatment by dual-flocculation

Ribeiro¹,

Filho²,

Rozeno³

et al. 2017

Express Polym. Lett.

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Abstract. Biodiesel wastewater generally contains high levels of oils, soaps and glycerol residues. This needs wastewater treatment. In this study, the biodiesel wastewater treatment was tested (industrial wastewater (EFID) and laboratory wastewater (EFLB) from biodiesel) by performing flocculation and dual-flocculation with renewable polymers. Tannin and cationic hemicellulose (CH) were used as cationic flocculant, and cellulose acetate sulfate (CAS) was used as an anionic flocculant. Polyacrylamide (PAM) was used as a reference anionic flocculant for result efficiencies analysis obtained with CAS (renewable source flocculant). The treatment efficacy in wastewater was evaluated by: turbidity removal, sludge volume formed, chemical oxygen demand (COD) and total suspended solids (TSS). The obtained sludge was studied using thermogravimetric analysis (TG). The dual-flocculation application condition of the 25% proportion of tannin (T) and 75% proportion of cationic hemicelluloses (i.e., T25/CH75) showed EFLB turbidity removal of 89.1% and 89.5% for CAS and PAM additions respectively, and for EFID of 67% and 41% for CAS and PAM additions respectively. The dual-flocculation performance suggested that the polyelectrolytes obtained from renewable sources can be used for treating biodiesel wastewater.

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“…He concluded that the statistical model predicted that the highest conversion yield of lard biodiesel would be 96.2 %. The optimization technique like central composite design [10][11][12] can be successfully applied on different feed stokes like palm oil, lard oil, soybean oil, cotton seed oil, rapeseed oil, coconut oil, rice brown etc. and to study their effect of process variables.…”

Section: Introductionmentioning

confidence: 99%

Production and characterization of used cooking oil as an alternative fuel: optimization by response surface methodology

Kumar¹,

Prasad²

2018

Math. models, eng.

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Abstract. The application of biodiesel in internal combustion engines are increasing at a faster rate, due to the fact that biodiesel posses more oxygen content (Approximately 12 %), which helps in the complete combustion of the fuel. On the other hand the production cost of the biodiesel is high compared to mineral diesel fuel. This may be due to the availability of raw oil and its high initial cost. To minimize the high initial cost of the biodiesel used cooking oil is one of the best solutions. In this paper an attempt was made to analyze the fatty acid compositions and other characteristics of used cooking oil. Optimization techniques like response surface methodology (RSM) was successfully used for better yield estimation with the help of advanced software Design Expert. The optimum values of the variables were: oil to methanol ratio (1:8.37), catalyst concentration (0.74 Wt%), reaction temperature (47.950 °C) and reaction time (54.58 min) at 250 rpm. The predicted response value at these optimum values was 96.15 %. To confirm these optimum values, experimentations were conducted based on the optimum values and achieve the yield of 96 %. This shows that the yield of used cooking oil methyl ester is very near to the optimum value with an error of 0.15 % which may be accepted. This showed that the model correctly explains the influence of the process variables on the production of FAME from used cooking oil (UCOME). And from the gas chromatography results there is equal distribution of saturated and unsaturated fatty acids. 14 % oxygen can be acclaimed in UCOME by elemental analysis. Unsaturated level of fatty acids are observed.

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Optimization of biodiesel production from refined cotton seed oil and its characterization

Cited by 160 publications

References 3 publications

Response Surface Methodology for Biodiesel Production Using Calcium Methoxide Catalyst Assisted with Tetrahydrofuran as Cosolvent

Response Surface Methodology for Biodiesel Production Using Calcium Methoxide Catalyst Assisted with Tetrahydrofuran as Cosolvent

Polymeric polyelectrolytes obtained from renewable sources for biodiesel wastewater treatment by dual-flocculation

Production and characterization of used cooking oil as an alternative fuel: optimization by response surface methodology

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