scholarly journals A review on production of biodiesel from waste cooking oils

2018 ◽  
Vol 1 (2) ◽  
pp. 32-41
Author(s):  
Muzhda Azizi ◽  
Sweeta Akbari
Keyword(s):  
Fossil Fuels ◽  
Greenhouse Gas Emission ◽  
Good Alternative ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Waste Cooking Oils ◽  
Low Toxicity ◽  
The One ◽  
Cooking Oils ◽  
Different Sources

Nowadays, preservation of natural resources on earth is one of the most important concerns of humanity. In this regard, increasing the consumption of energy is one of the most critical challenges that humans are facing. Because, on the one hand, the untapped use of different sources of energy from fossil fuels can destroy this natural resource and, on the other hand, pollution from the use of these resources is a serious threat to the environment. Recent research suggests that affordable, sustainable and environmentally friendly fuels, which can be a good alternative to fossil fuels, have become more important. Therefore, biodiesel has made it possible to release less greenhouse gas emission and low toxicity emissions, which can partly meet fuel requirements and is the best alternative for petroleum diesel. In addition, the waste cooking oils are a major source of biodiesel for their essential compounds, such as glycerol. The use of waste cooking oils can reduce biodiesel production cost by 60 to 90 percent. Therefore, the main objective of this review is to study the production of biodiesel using transesterification reaction of waste cooking oil as an alternative fuel to petroleum diesel that can be used easily in diesel engines.

scholarly journals Biodiesel Production from Waste Cooking Oil

2015 ◽  
Vol 3 (8) ◽  
pp. 448-450 ◽  
Author(s):  
Vinoth E
Keyword(s):  
Methyl Esters ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Plant Resources ◽  
Waste Cooking Oils ◽  
New Energy ◽  
General Aspects ◽  
Cooking Oils ◽  
The Cost ◽  
No Emissions

Biodiesel is receiving increased attention as an alternative, non-toxic, biodegradable and renewable diesel fuel and contributes a minimum amount of net greenhouse gases, such as CO2, SO2 and NO emissions to the atmosphere. Exploring new energy resources, such as biofuel is of growing importance in recent years. The possibility of obtaining oil from plant resources has created a great importance in several countries. Vegetable oil after esterification being used as bio diesel, Considering the cost and demand of the edible oil is bearable, so it may be preferred for the preparation of bio diesel in India.  The transesterification of waste cooking oils with methanol as well as the main uses of the fatty acid methyl esters are reviewed. The general aspects of this process and the applicability of different types of catalysts (acids, alkaline metal hydroxides, alkoxides and carbonates, enzymes and non-ionic bases, such as amines, amides, and guanidine and triamino (imino) phosphoranes) are described. Transesterification is carried in a reaction cavity, once the reaction is complete, glycerine and biodiesel are gravity separated.   

Intensification of waste cooking oil transformation by transesterification and esterification reactions in oscillatory baffled and microstructured reactors for biodiesel production

2014 ◽  
Vol 3 (6) ◽  
Author(s):  
Alex Mazubert ◽  
Joelle Aubin ◽  
Sébastien Elgue ◽  
Martine Poux
Keyword(s):  
Fatty Acid ◽  
Acid Methyl Ester ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Cooking Oil ◽  
Acid Methyl ◽  
Waste Cooking Oils ◽  
Microstructured Reactors ◽  
Esterification Reactions ◽  
Cooking Oils

AbstractThe transformation of waste cooking oils for fatty acid methyl ester production is investigated in two intensified technologies: microstructured Corning

scholarly journals Production of Biodiesel from Non- Edible Oil (WCO)

2020 ◽  
pp. 268-271
Author(s):  
Saroj Rani ◽  
Sukhdeep Kaur ◽  
Shivani . ◽  
Harneet Kaur
Keyword(s):  
Vegetable Oils ◽  
Alternative Fuels ◽  
Fossil Fuels ◽  
Good Alternative ◽  
Environmental Benefits ◽  
Ethyl Esters ◽  
Energy Demands ◽  
Waste Cooking Oils ◽  
Cooking Oils ◽  
Short Time

Today world’s energy demands are increasing day by day due to increase in population, standard of living, industrialization& urbanization and which are mostly fulfilled by fossil fuels. Fossil fuels are non-renewable so its reserves are getting declined and also it is environmentally unreasonable. This made an interest in the area of alternative fuels. Biodiesel can be good alternative fuel because of its renewability and environmental benefits and apart from this it can be a strategic source of energy for the countries which doesn’t have oilfields. Biodiesel can be produced from edible, non-edible, algae and waste cooking oils. There are four essential approaches to make biodiesel, direct use and mixing, miniaturized scale emulsions, warm breaking (pyrolysis) and Transesterification. The most regularly utilized technique is transesterification of vegetable oils and creature fats. This researches the transesterification response of refined vegetable oils by methods for ethanol, utilizing sodium methoxide and sodium hydroxide as impetuses. Especially, the goal of this work was to plan ethyl esters with the two distinctive homogeneous impetuses, while the response had been done in one stage. A short time later, the subsequent items were assessed with respect to the physicochemical properties

Influence of antioxidant addition on the emissions of a diesel engine by using waste cooking oil biodiesel

2018 ◽  
Vol 29 (5) ◽  
pp. 732-741 ◽  
Author(s):  
Farah Halek ◽  
Ali Kavousi-Rahim
Keyword(s):  
Diesel Engine ◽  
Fossil Fuels ◽  
Energy Resource ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Biodiesel Fuel ◽  
Animal Fats ◽  
Cooking Oil ◽  
Efficient Reduction ◽  
Cooking Oils

Biodiesel is a renewable energy resource consisting of the alkyl monoesters of fatty acids obtained from vegetable oils, waste cooking oils, or animal fats. Biodiesel has been noticed recently as an alternative to fossil fuels. Previous studies have shown that biodiesel produces less pollutants compared to diesel fuel. Biodiesel fuel increases the emission of NOx exceptionally. Recently, it has been found that antioxidant addition to biodiesel is a solution to solve the problem. The purpose of this research is to study the effect of antioxidants addition on the emissions of CO, HC, and NOx from biodiesel fuel. Exhaust emissions of an agriculture diesel engine were studied using biodiesel blend with a 500 ppm propyl gallate (PrG) (propyl-3,4,5-trihydroxybenzoate) and butylated hydroxy anisole (BhA) (2-tert-butyl-4-methoxyphenol) as two major antioxidants. Biodiesel used in this research was prepared through NaOH catalyzed transesterification of a waste cooking oil that originally was taken from sunflower oil, with the assistance of ultrasonic homogenizer. After biodiesel production, five blends including neat diesel, B10, B20, B20 + 500 ppm PrG, and B20+ 500 ppm BhA were used as fuel and the emitted gases were analyzed. The results of this work demonstrated that the addition of antioxidants has no significant effect on lowering CO emission, as well as lowering HC; but the addition of antioxidants results in more efficient reduction of NOx emission from diesel exhaust. In general, BhA showed better results compared to PrG.

scholarly journals Biodiesel Production from Waste Cooking Oil: Characterization, Modeling and Optimization

2021 ◽  
Vol 1 (1) ◽  
pp. 22-30
Author(s):  
Aditya Kolakoti ◽  
Muji Setiyo ◽  
Budi Waluyo
Keyword(s):  
Unsaturated Fatty Acids ◽  
Optimization Methods ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Fatty Acid Profiles ◽  
Modeling And Optimization ◽  
Cooking Oil ◽  
Waste Cooking Oils ◽  
Oil Characterization ◽  
Cooking Oils

In this study, waste and discarded cooking oils (WCO) of palm, sunflower, rice bran and groundnut oils are collected from local restaurants. The high viscous WCO was converted into waste cooking oil biodiesel (WCOBD) by a single-stage transesterification process. During the transesterification process, the important parameters which show a significant change in biodiesel yield are studied using the optimization tool of response surface methodology (RSM). Results reported that 91.30% biodiesel yield was achieved within L18 experiments and NaOH catalyst was identified as the most influential parameter on WCOBD yield. Artificial Intelligence (AI) based modeling was also carried out to predict biodiesel yield. From AI modeling, a predicted yield of 92.88% was achieved, which is 1.70% higher than the RSM method. These results reveal the prediction capabilities and accuracy of the chosen modeling and optimization methods. In addition, the significant fuel properties are measured and observed within the scope of ASTM standards (ASTMD6751) and fatty acid profiles from chromatography reveal the presence of high unsaturated fatty acids in WCOBD. Therefore, utilizing the waste cooking oils for biodiesel production can mitigate the global challenges of environmental and energy paucity.

Waste Cooking Oil Management at Three Gastronomic Establishments in Lavras, Minas Gerais, Brazil: Problems, Prospects and Solutions

2019 ◽  
Vol 45 (4) ◽  
pp. 403-409
Author(s):  
Gabriela Rezende de Souza ◽  
André Geraldo Cornélio Ribeiro
Keyword(s):  
Waste Cooking Oil ◽  
Environmental Benefits ◽  
Biodiesel Production ◽  
Structural Problems ◽  
Waste Cooking Oils ◽  
The Government ◽  
Cooking Oils ◽  
The City ◽  
And Storage

The waste cooking oils (WCOs), when wrongly discarded, bring environmental damages, additionally to structural problems and financial losses if released in the sewage system. However, the correct management of this residue allows its reuse and recycling, representing economic gains, besides social and environmental benefits. There are several alternatives to recycling and reusing WCOs and the biodiesel production presents itself as one of the most important. Nevertheless, it is necessary to guarantee the residue quality in order to utilize its potential, as well as a coordinated management of WCO, promoting the correct processing and disposal of this waste. In this context, this article aims to propose an environmentally appropriate WCO onsite handling and collection in Lavras-MG, by evaluating the WCO management at three establishments in the city. The evaluation had taken into account the quantity of WCO generated, handling, storage and collection methods adopted, and the quality of the residue, by analyzing levels of acid, iodine and peroxide and saponification value. The results revealed the current management of the WCO, the actors involved in the management chain, the way the different frying and storage processes influence the WCO quality for reusing and recycling and possible alternatives to improve the management. The WCO management chain, composed of ACAMAR, G-Óleo, E1 and E2, is widespread and shows potential to transform the WCO into several other products, in addition to biodiesel and handmade soap. At long last to coordinate the correct WCO handling, collection, processing and disposal it is essential to guarantee the participation of the generators, collectors, and the government.

scholarly journals A Comprehensive Review on Oil Extraction and Biodiesel Production Technologies

2021 ◽  
Vol 13 (2) ◽  
pp. 788
Author(s):  
Zulqarnain ◽  
Muhammad Ayoub ◽  
Mohd Hizami Mohd Yusoff ◽  
Muhammad Hamza Nazir ◽  
Imtisal Zahid ◽  
...  
Keyword(s):  
Energy Demand ◽  
Alternative Fuels ◽  
Fossil Fuels ◽  
Significant Proportion ◽  
Waste Cooking Oil ◽  
Oil Extraction ◽  
Biodiesel Production ◽  
Waste Oils ◽  
Biodiesel Synthesis ◽  
Production Technologies

Dependence on fossil fuels for meeting the growing energy demand is damaging the world’s environment. There is a dire need to look for alternative fuels that are less potent to greenhouse gas emissions. Biofuels offer several advantages with less harmful effects on the environment. Biodiesel is synthesized from the organic wastes produced extensively like edible, non-edible, microbial, and waste oils. This study reviews the feasibility of the state-of-the-art feedstocks for sustainable biodiesel synthesis such as availability, and capacity to cover a significant proportion of fossil fuels. Biodiesel synthesized from oil crops, vegetable oils, and animal fats are the potential renewable carbon-neutral substitute to petroleum fuels. This study concludes that waste oils with higher oil content including waste cooking oil, waste palm oil, and algal oil are the most favorable feedstocks. The comparison of biodiesel production and parametric analysis is done critically, which is necessary to come up with the most appropriate feedstock for biodiesel synthesis. Since the critical comparison of feedstocks along with oil extraction and biodiesel production technologies has never been done before, this will help to direct future researchers to use more sustainable feedstocks for biodiesel synthesis. This study concluded that the use of third-generation feedstocks (wastes) is the most appropriate way for sustainable biodiesel production. The use of innovative costless oil extraction technologies including supercritical and microwave-assisted transesterification method is recommended for oil extraction.

scholarly journals Process optimization for biodiesel production from neutralized waste cooking oil and the effect of this biodiesel on engine performance

2018 ◽  
Vol 8 (1) ◽  
pp. 121-127 ◽  
Author(s):  
Tanzer Eryilmaz
Keyword(s):  
Reaction Time ◽  
Methyl Ester ◽  
Reaction Temperature ◽  
Direct Injection ◽  
Engine Performance ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Phase Reaction ◽  
Optimum Conditions ◽  
Cooking Oils

In this study, the methyl ester production process from neutralized waste cooking oils is optimized by using alkali-catalyzed (KOH) single-phase reaction. The optimization process is performed depending on the parameters, such as catalyst concentration, methanol/oil ratio, reaction temperature and reaction time. The optimum methyl ester conversion efficiency was 90.1% at the optimum conditions of 0.7 wt% of potassium hydroxide, 25 wt% methanol/oil ratio, 90 min reaction time and 60°C reaction temperature. After the fuel characteristics of the methyl ester obtained under optimum conditions were determined, the effect on engine performance, CO and NOx emissions of methyl ester was investigated in a diesel engine with a single cylinder and direct injection. When compared to diesel fuel, engine power and torque decreased when using methyl ester, and specific fuel consumption increased. NOx emission increases at a rate of 18.4% on average through use of methyl ester.

scholarly journals Evaluation of Shell-Derived Calcium Oxide Catalysts for the Production of Biodiesel Esters from Cooking Oils

2021 ◽  
pp. 20-27
Author(s):  
Ngee Sing Chong ◽  
Francis Uchenna Okejiri ◽  
Saidi Abdulramoni ◽  
Shruthi Perna ◽  
Beng Guat Ooi
Keyword(s):  
Calcium Oxide ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Molar Ratio ◽  
X Ray ◽  
Cooking Oil ◽  
Biodiesel Synthesis ◽  
Cooking Oils ◽  
The Cost ◽  
Percentage Conversion

Due to the high cost of feedstock and catalyst in biodiesel production, the viability of the biodiesel industry has been dependent on government subsidies or tax incentives. In order to reduce the cost of production, food wastes including eggshells and oyster shells have been used to prepare calcium oxide (CaO) catalysts for the transesterification reaction of biodiesel synthesis. The shells were calcined at 1000 °C for 4 hours to obtain CaO powders which were investigated as catalysts for the transesterification of waste cooking oil. The catalysts were characterized by Fourier Transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), X-ray powder diffraction (XRD), and X-ray fluorescence (XRF) spectroscopy. Reaction parameters such as methanol-to-oil molar ratio, CaO catalyst concentration, and reaction time were evaluated and optimized for the percentage conversion of cooking oil to biodiesel esters. The oyster-based CaO showed better catalytic activity when compared to the eggshell-based CaO under the same set of reaction conditions.

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