Biodiesel Production from Waste Cooking Oil

Biofuels - Status and Perspective, 2015

Biomass and Bioenergy, 2011

Biodiesel- Quality, Emissions and By-Products, 2011

Fuel and Energy Abstracts, 2011

Biodiesel feasibility Biodiesel energy balance Biodiesel raw material Biodiesel in Brazil a b s t r a c t

journal of Chilean chemical society, 2021

Biodiesel is a long-chain fatty acid ester made from renewed and biological raw materials such as used cooking, animal fat, vegetable oil, and algae. Biodiesel is a renewable and clean fuel as it reduces carbon monoxide, carbon dioxide, hydrocarbons, and particulate matter emissions compared with petroleum-based diesel fuel. Production of biodiesel from renewable resources is done through the transesterification reaction at which the organic group (alkyl) of alcohol is substituted with the organic group of a triglyceride-the main component of the feedstock-producing fatty acid alkyl ester (biodiesel) and crude glycerol. Biodiesel can be used in pure form (B100) or may be blended with petroleum diesel at any concentration if its specifications is identical to the international standard specifications provided by American standard for testing materials (ASTM) or EN14214 in the European Union for alternative fuels. In this paper, the different types of biodiesel feedstocks, feedstocks treatment methods, and biodiesel production technologies are reviewed and discussed.

2007

The purpose of this paper is to reflect upon the main environmental and technological aspects of producing and consuming ethanol from sugarcane in Brazil. An analysis of the entire ethanol production chain makes clear that the strategic use of the byproducts is essential to ensure the sustainability of the production chain. Two additional issues should be addressed, namely, burning sugarcane before the harvest and expanding the sugarcane monoculture area. The study demonstrates that ethanol production from sugarcane contributes to environmental sustainability and that this renewable fuel compares favorably with fossil fuels.

Journal of Oleo Science, 2006

Recent petroleum crisis (1), increasing cost and unavailability of petroleum diesel gave impetus to the scientists to work on alternative fuel, biodiesel. Biodiesel has been gaining worldwide popularity as an alternative energy source because it is non toxic, biodegradable & non flammable and has significantly fewer emissions than petroleum-based diesel (petrodiesel) when burned.Biodiesel is an eco-friendly, alternative diesel fuel prepared from domestic renewable resources i.e. vegetable oils (edible or non-edible) and animal fats, that runs in diesel engines-cars, buses, trucks, construction equipment, boats, generators, and oil home heating units. Various edible and non edible vegetable oils, like rice bran oil, coconut oil, Jatropha curcas, castor oil, cottonseed oil, mahua, karanja which are either surplus and are nonedible type, can be used for the preparation of biodiesel. (2). It is an alternative fuel derived from the conversion of agricultural lipids and a simple alcohol into fatty acid alkyl ester and glycerol and is defined as "mono alkyl esters of fatty acids derived from vegetable oil or animal fats". These natural oils and fats are made up mainly of triglycerides. These triglycerides have striking similarity to petroleum derived diesel so that it is known as "biodiesel". Biodiesel functions in current diesel engines, and is a possible candidate to replace fossil fuels as the world's primary transport energy source.

CHEMTAG Journal of Chemical Engineering

Biodiesel is a potential renewable energy that can reduce greenhouse gas (GHG) emissions and increase energy security. Biodiesel has been shown to have lower carbon emissions compared to petroleum diesel, and it can reduce GHG by as much as 86%. Governments around the world have set targets for renewable energy, with a specific focus on the use of biofuels like biodiesel. Biodiesel can be derived from various feedstocks such as animal lipids, vegetable oils, and waste oils. It can be made through the transesterification of triglyceride with ethanol or methanol. This reaction requires strong base catalysts, such as sodium hydroxide or potassium hydroxide, in order to produce methyl esters. The potential of biodiesel has led to advancements in its production, such as the use of enzymatic transesterification, novel feedstocks, and the optimization of production parameters. Additionally, various companies have ventured into biodiesel production with a range of business models and approaches.

Fuel Processing Technology, 2005

Biodiesel is an alternative diesel fuel that is produced from vegetable oils and animal fats. It consists of the monoalkyl esters formed by a catalyzed reaction of the triglycerides in the oil or fat with a simple monohydric alcohol. The reaction conditions generally involve a trade-off between reaction time and temperature as reaction completeness is the most critical fuel quality parameter. Much of the process complexity originates from contaminants in the feedstock, such as water and free fatty acids, or impurities in the final product, such as methanol, free glycerol, and soap. Processes have been developed to produce biodiesel from high free fatty acid feedstocks, such as recycled restaurant grease, animal fats, and soapstock. D