Selection of catalyst and reaction conditions for ultrasound assisted biodiesel production from canola oil

Korkut, Ibrahim; Bayramoǧlu, Mahmut

doi:10.1016/j.renene.2017.10.010

Cited by 73 publications

(15 citation statements)

References 25 publications

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“…However, high temperature denatured the lipase and reduced the biodiesel yield. Water content is also significant for the reaction rate, as it affects the activity and stability of lipase and protects it from deactivation via short chain alcohols [21].…”

Section: Biodiesel Yield (%) and Optimum Reaction Conditionsmentioning

confidence: 99%

Synthesis of Lipase-Immobilized CeO2 Nanorods as Heterogeneous Nano-Biocatalyst for Optimized Biodiesel Production from Eruca sativa Seed Oil

et al. 2020

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Biodiesel has emerged as one of the most attractive alternative energy sources to meet the growing needs of energy. Many approaches have been adopted for biodiesel synthesis. In the present work, biodiesel was produced from non-edible Eruca sativa oil using nano-biocatalyst-catalysed transesterification. Nano-biocatalyst (CeO 2 @PDA@A. terreus Lipase) was developed via the immobilization of lipase on polydopamine coated ceria nanorods, and CeO 2 nanorods were developed via a hydrothermal process. The mean diameter of nanorods were measured to be 50-60 nm, while their mean length was 150-200 nm. Lipase activity before and after immobilization was measured to be 18.32 and 16.90 U/mg/min, respectively. The immobilized lipase depicted high stability at high temperature and pH. CeO 2 @PDA@A. terreus Lipase-catalysed transesterification resulted in 89.3% yield of the product. Process optimization through response surface methodology was also executed, and it was depicted that the optimum/maximum E. sativa oil-based biodiesel yield was procured at conditions of 10% CeO 2 @PDA@A. terreus Lipase, 6:1 methanol/oil ratio, 0.6% water content, 35 • C reaction temperature, and 30 h reaction time. The fuel compatibility of synthesized biodiesel was confirmed via the estimation of fuel properties that were in agreement with the ASTM D standard. The nanorods and dopamine-modified nanorods were characterized by FTIR spectroscopy, SEM, and energy dispersive X-ray (EDX), while conversion of E. sativa oil to biodiesel was confirmed by GC/MS and FTIR spectroscopy. Conclusively, it was revealed that CeO 2 @PDA@A. terreus Lipase has potential to be employed as an emphatic nano-biocatalyst. IntroductionDepletion of petroleum reservoirs has stimulated the scientific community worldwide to search for alternate energy resources. Biodiesel has notable potential as an imperative green fuel [1]. The additional impacts of biodiesel production are to increase agricultural production and productiveness, to increase the income of rural communities, to lessen pollution, and to create new jobs [2]. Biodiesel is a biodegradable, relatively nontoxic, and green fuel with reduced CO and unburned hydrocarbons (UHC) emission. Moreover, biodiesel has benefits such as appropriate lubricity, and no sulphur [3]. Biodiesel is widely manufactured using the transesterification process, which is catalyzed by numerous catalysts. Transesterification lowers the viscosity of feedstock oils [4] which reacts with alcohol, resulting in biodiesel. Many acidic and basic catalysts have been employed for the said purpose, but enzymatic catalysis is being promoted. The chemical methods of transesterification are considered to be problematic due to the production of poor-quality glycerol, the production of alkaline wastes, washing requirements, side reactions, and issues related to biodiesel recovery and purification. Therefore, enzymes are preferred over chemical catalysts in the transesterification to prepare biodiesel [5].Various lipases are frequently being used in the tr...

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Section: Biodiesel Yield (%) and Optimum Reaction Conditionsmentioning

confidence: 99%

Synthesis of Lipase-Immobilized CeO2 Nanorods as Heterogeneous Nano-Biocatalyst for Optimized Biodiesel Production from Eruca sativa Seed Oil

et al. 2020

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“…This would result in the decrease of biodiesel yield. [35,40]. Other factors which can affect the production yield are reaction temperature and pressure, oil type, oil source, and stirring mode [24,33,41].…”

Section: Analysis Of Chicken Fat Biodiesel Yieldmentioning

confidence: 99%

A Study on Chicken Fat as an Alternative Feedstock: Biodiesel Production, Fuel Characterisation, and Diesel Engine Performance Analysis

Mohiddin¹,

Saleh²,

Reddy³

et al. 2018

IJAME

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Biodiesel is one of the promising renewable sources to fulfill the future energy demand of the world. Sustainable feedstock for biodiesel production is one of the major criteria to ensure the process of renewability. Chicken fat is an encouraging feedstock for biodiesel. In this study, waste chicken fat was converted to biodiesel via catalysed transesterification. Optimised process parameters were recorded at 1:4 oil-to-methanol volume ratio and 0.5 wt% KOH catalyst concentration with a biodiesel yield of 96%. The FT-IR spectral analysis of chicken fat and chicken fat biodiesel confirmed the conversion of chicken fats into biodiesel. The physico-chemical properties of biodiesel were tested in accordance with ASTM D6751 and EN 14214 biodiesel standards. The specific fuel properties of chicken fat biodiesel that include calorific value, viscosity and acid value were found to be lower than that of petrodiesel. The diesel engine performance tests confirmed that the biodiesel blends performance was similar to petrodiesel. It is noted that while the brake horsepower increased with the increase of biodiesel blending percentage, the engine power output was found to decrease. Specific fuel consumption also increased along with the biodiesel blending percentage.

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“…The optimum methanol-to-oil ratio was 12:1 over the catalyst in the present study, which was double the practical methanol-to-oil ratio for homogeneous transesterification of 6:1. This higher amount methanol would cause the development of methoxy specified for the surface of CaO as well as the reaction equilibrium shifting to a forward direction [42]. However, KME yield will not increase when the methanol ratio is over 12.…”

Section: Karanja Biodiesel Production Analysismentioning

confidence: 99%

Production of Karanja Methyl Ester from Crude Karanja Oil Using Meretrix Lyrata Synthesised Active CaO Catalyst

Harreh¹,

Saleh²,

Reddy³

et al. 2018

IJAME

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Active calcium oxide catalyst was synthesised from Meretrix Lyrata (M.Lyrata) following calcination-hydration-dehydration technique. The catalytic feasibility of synthesised CaO was investigated in the production of Karanja methyl ester (KME) from crude Karanja oil (CKO). KME was synthesised through esterification using followed by transesterification utilising CaO in a two-step reaction process of CKO and methanol. The M.Lyrata shells were calcined at 900 ℃ and the catalyst samples were characterised using FTIR, SEM, PSA, and BET-BJH spectrographic techniques. A maximum fatty acid methyl ester (FAME) conversion of 97.3 % was obtained at optimum reaction conditions including methanol-to-oil ratio of 12:1, catalyst concentration of 2 wt.%, reaction temperature of 58 ℃ and reaction time of 2 hrs. In a comparative study with commercial CaO, M.Lyrata showed a higher catalytic activity. The catalyst reusability experiments ascertaining reusability of CaO up to four reuse cycles had shown good efficiency. The economic comparative study confirms that CaO derived from M.Lyrata can be used as an alternative and feasible catalyst for biodiesel production. The KME fuel properties complied to EN-14214 biodiesel fuel standards.

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Selection of catalyst and reaction conditions for ultrasound assisted biodiesel production from canola oil

Cited by 73 publications

References 25 publications

Synthesis of Lipase-Immobilized CeO2 Nanorods as Heterogeneous Nano-Biocatalyst for Optimized Biodiesel Production from Eruca sativa Seed Oil

Synthesis of Lipase-Immobilized CeO2 Nanorods as Heterogeneous Nano-Biocatalyst for Optimized Biodiesel Production from Eruca sativa Seed Oil

A Study on Chicken Fat as an Alternative Feedstock: Biodiesel Production, Fuel Characterisation, and Diesel Engine Performance Analysis

Production of Karanja Methyl Ester from Crude Karanja Oil Using Meretrix Lyrata Synthesised Active CaO Catalyst

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