scholarly journals Optimization of biodiesel production from high free fatty acid river catfish oil (Pangasius hypothalamus) and waste cooking oil catalyzed by waste chicken egg shells derived catalyst

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Gopalan Santya ◽  
Thevaraju Maheswaran ◽  
Kian Fei Yee
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
High Free Fatty Acid ◽  
Cooking Oil ◽  
Chicken Egg ◽  
Egg Shells ◽  
Catfish Oil

scholarly journals Analisis Minyak Jelantah Sebagai Bahan Bakar Biodiesel dengan Proses Transesterifikasi

2018 ◽  
Vol 1 (1) ◽  
pp. 16 ◽  
Author(s):  
Hadrah Hadrah ◽  
Monik Kasman ◽  
Fitria Mayang Sari
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Sodium Hydroxide Solution ◽  
Quality Standard ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Cooking Oil ◽  
Used Oil ◽  
Used Cooking Oil ◽  
Biodiesel Quality

Waste cooking oil is used oil that has been used for domestic purposes and has undergone changes, both physically and chemically. One effort that can be done to reduce the adverse effects of used cooking oil is changed the material used cooking oil into biodiesel. In this study of biodiesel production from waste cooking oil is done by using biodiesel transesterification reaction as generally through a pretreatment in order to reduce the number of Free Fatty Acid in cooking oil. The high number of Free Fatty Acid will complicate the separation of glycerol from biodiesel so that production of biodiesel will be slight. Test parameters of biodiesel quality produced by  transesterification process refers to the Indonesian biodiesel quality standard ISO 7182: 2015. The production of biodiesel from used cooking oil in this experiment using variations methanol and sodium hydroxide solution ratio to the used cooking oil is 1: 2; 1: 4 and 1: 8. Test results showed that the quality of biodiesel is in compliance with ISO 7182: 2015 on the parameters of viscosity, density and flame test. While the Free Fatty Acids remained above the quality standard ISO 7182: 2015.Keywords :    Waste cooking oil, Transesterification, Biodiesel

scholarly journals Biodiesel production from rapeseed oil and low free fatty acid waste cooking oil using a cesium modified natural phosphate catalyst

RSC Advances ◽  
2020 ◽  
Vol 10 (67) ◽  
pp. 41065-41077
Author(s):  
Boutaina Rezki ◽  
Younes Essamlali ◽  
Mina Aadil ◽  
Nawal Semlal ◽  
Mohamed Zahouily
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Free Fatty Acid ◽  
Free Fatty Acids ◽  
Rapeseed Oil ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Natural Phosphate ◽  
Cooking Oil ◽  
Acid Waste

Cesium modified natural phosphate was investigated as a catalyst in biodiesel production from rapeseed oil and low free fatty acids used in cooking oil.

scholarly journals Recent Strategy of Biodiesel Production from Waste Cooking Oil and Process Influencing Parameters: A Review

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
A. Gnanaprakasam ◽  
V. M. Sivakumar ◽  
A. Surendhar ◽  
M. Thirumarimurugan ◽  
T. Kannadasan
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Acid Content ◽  
Reaction Rate ◽  
Fatty Acid Content ◽  
Waste Cooking Oil ◽  
Operating Conditions ◽  
Biodiesel Production ◽  
Alkaline Catalyst ◽  
Cooking Oil

Cost of biodiesel produced from virgin vegetable oil through transesterification is higher than that of fossil fuel, because of high raw material cost. To minimize the biofuel cost, in recent days waste cooking oil was used as feedstock. Catalysts used in this process are usually acids, base, and lipase. Since lipase catalysts are much expensive, the usage of lipase in biodiesel production is limited. In most cases, NaOH is used as alkaline catalyst, because of its low cost and higher reaction rate. In the case of waste cooking oil containing high percentage of free fatty acid, alkaline catalyst reacts with free fatty acid and forms soap by saponification reaction. Also, it reduces the biodiesel conversions. In order to reduce the level of fatty acid content, waste cooking oil is pretreated with acid catalyst to undergo esterification reaction, which also requires high operating conditions. In this review paper, various parameters influencing the process of biofuel production such as reaction rate, catalyst concentration, temperature, stirrer speed, catalyst type, alcohol used, alcohol to oil ratio, free fatty acid content, and water content have been summarized.

Biodiesel Production from the High Free Fatty Acid “Hevea brasiliensis” and Fuel Properties Characterization

2014 ◽  
Vol 625 ◽  
pp. 897-900 ◽  
Author(s):  
Junaid Ahmad ◽  
Suzana Yusup ◽  
Awais Bokhari ◽  
Ruzaimah Nik Mohammad Kamil
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Seed Oil ◽  
Standard Procedure ◽  
Fuel Properties ◽  
Biodiesel Production ◽  
Modern World ◽  
High Free Fatty Acid ◽  
Rubber Seed Oil ◽  
Rubber Seed

Energy crises, depletion of fossil fuel reservoirs, environmental pollution, global warming, green house effect and starvation are becoming very serious problems in the modern world. Biodiesel is a liquid fuel which can be the best alternative for the fossil fuels. In this study, non-edible rubber seed oil (RSO) with high free fatty acid (FFA) content (45%) was used for the production of biodiesel. The process comprises of two steps, in the first step acid esterification was used to reduce the FFA and in the second step base transesterification was employed to convert the treated oil into rubber seed oil methyl esters (RSOMEs). The conversion yield of biodiesel was analyzed using gas chromatography. The fuel properties were tested using the standard procedure of ASTM D6751 and EN14214. All the properties were within the ranges of the biodiesel standards. The result shows that rubber seed oil is a potential non-edible source for biodiesel production.

The application of calcined marlstones as a catalyst in biodiesel production from high free fatty acid coconut oil

Fuel ◽  
2015 ◽  
Vol 158 ◽  
pp. 372-378 ◽  
Author(s):  
Phaedra Jaggernauth-Ali ◽  
Ejae John ◽  
Puran Bridgemohan
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Coconut Oil ◽  
Biodiesel Production ◽  
High Free Fatty Acid

Enzyme catalyzed biodiesel production from rubber seed oil containing high free fatty acid

2017 ◽  
Vol 14 (8) ◽  
pp. 687-693 ◽  
Author(s):  
Jilse Sebastian ◽  
Chandrasekharan Muraleedharan ◽  
Arockiasamy Santhiagu
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Seed Oil ◽  
Biodiesel Production ◽  
High Free Fatty Acid ◽  
Rubber Seed Oil ◽  
Rubber Seed

scholarly journals Feasibility of Coconut Testa oil and Coconut Waste Cooking oil as Potential Biodiesel Feedstocks

2021 ◽  
Author(s):  
Muhammed Niyas Maliyekkal ◽  
Andavan Shaija
Keyword(s):  
Fatty Acid ◽  
Coconut Oil ◽  
Calorific Value ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Food Material ◽  
Copper Strip ◽  
Engine Operation ◽  
Cooking Oil ◽  
Fresh Coconut

Abstract It is well known that biodiesel from pure coconut oil is suited best for diesel engine operation. However, the commercialization of coconut oil biodiesel is unfeasible due to its higher cost and demand as a food material. In this study, biodiesels were produced from coconut testa oil and coconut waste cooking oil, two waste feedstock derivatives of coconut. Fatty acid composition and properties such as density, calorific value, kinematic viscosity, cloud and pour points, flash and fire points, Conradson carbon residue, and copper strip corrosion of these two biodiesels were determined and compared with those of fresh coconut oil biodiesel and the standard diesel. It was found that the properties and fatty acid profiles of all three biodiesels were similar. Furthermore, from the engine testing using B20 (diesel-biodiesel blend with 20% biodiesel) blends of prepared biodiesels, it was found that the engine performance, emission, and combustion characteristics were comparable for coconut testa oil and coconut waste cooking oil biodiesels with fresh coconut oil biodiesel. Thus the coconut testa oil and coconut waste cooking oil can be used as low-cost feedstocks for biodiesel production with all advantages of fresh coconut oil.

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