An Alternative Way to Manage Waste Cooking Oils for Biodiesel Production
Session
Agriculture, Food Science and Technology
Description
Biodiesel is a promising alternative energy solution to meet the need for sustainable sources of clean energy. Biodiesel has proven to be the best substitute for fossil oil due to its unique properties such as: low toxicity, no sulfur emissions, no particulate pollution, significant reduction in greenhouse gas emissions and biodegradability. Biodiesel production can be the solution to the problem of how to deal with waste cooking oils (WCO) and the associated problem of environmental contamination. Every year, tones of WCO are poured into toilets and drains, contaminating water supplies and creating serious problems in waste water treatment plants. WCO is a waste material that can be used to produce biodiesel. The main aim of this study is to determine how the type of WCO (and how much it has been used) affect the quality of the biodiesel obtained. Several processes for the production of biodiesel have been developed, among which transesterification using alkaline catalysis gives high levels of conversion of triglycerides to their corresponding methyl esters in short reaction times. Used cooking oils are used as raw materials, adaptation of continuous transesterification process and recovery of high-quality glycerol from biodiesel by-products (glycerin) are the main options to be considered to reduce the cost of biodiesel. There are four main ways to make biodiesel, direct use and blending, micro emulsions, thermal cracking (pyrolysis) and transesterification. The most common method is transesterification of vegetable oils and animal fats. The transesterification reaction is affected by the molar ratio of glycerides to alcohol, catalysts, reaction temperature, reaction time, and the free fatty acids and water content of the oils or fats. The mechanism and kinetics of transesterification show how the reaction occurs and progresses.
Keywords:
biodiesel production, waste cooking oils (WCO), transesterification, catalyst
Proceedings Editor
Edmond Hajrizi
ISBN
978-9951-550-50-5
Location
UBT Kampus, Lipjan
Start Date
29-10-2022 12:00 AM
End Date
30-10-2022 12:00 AM
DOI
10.33107/ubt-ic.2022.346
Recommended Citation
Mazrreku, Armela; Shtylla, Basanja; malollari, ilirjan; Osmani, Marilda; and Hoxha, Belinda, "An Alternative Way to Manage Waste Cooking Oils for Biodiesel Production" (2022). UBT International Conference. 355.
https://knowledgecenter.ubt-uni.net/conference/2022/all-events/355
An Alternative Way to Manage Waste Cooking Oils for Biodiesel Production
UBT Kampus, Lipjan
Biodiesel is a promising alternative energy solution to meet the need for sustainable sources of clean energy. Biodiesel has proven to be the best substitute for fossil oil due to its unique properties such as: low toxicity, no sulfur emissions, no particulate pollution, significant reduction in greenhouse gas emissions and biodegradability. Biodiesel production can be the solution to the problem of how to deal with waste cooking oils (WCO) and the associated problem of environmental contamination. Every year, tones of WCO are poured into toilets and drains, contaminating water supplies and creating serious problems in waste water treatment plants. WCO is a waste material that can be used to produce biodiesel. The main aim of this study is to determine how the type of WCO (and how much it has been used) affect the quality of the biodiesel obtained. Several processes for the production of biodiesel have been developed, among which transesterification using alkaline catalysis gives high levels of conversion of triglycerides to their corresponding methyl esters in short reaction times. Used cooking oils are used as raw materials, adaptation of continuous transesterification process and recovery of high-quality glycerol from biodiesel by-products (glycerin) are the main options to be considered to reduce the cost of biodiesel. There are four main ways to make biodiesel, direct use and blending, micro emulsions, thermal cracking (pyrolysis) and transesterification. The most common method is transesterification of vegetable oils and animal fats. The transesterification reaction is affected by the molar ratio of glycerides to alcohol, catalysts, reaction temperature, reaction time, and the free fatty acids and water content of the oils or fats. The mechanism and kinetics of transesterification show how the reaction occurs and progresses.