In order to produce biodiesel from waste cooking oil and optimize its yield, a two-stage process of esterification/ transesterification has been used in this study. First, we used the acidic catalysts H2SO4 in order to diminish the content of free fatty acid (FFA) in oil that caused reducing the oil acidity from 6.1% to 0.57% through esterification. Then, the biodiesel was produced by transeste...

Energy obtained from renewable sources has increased its participation in the energy matrix worldwide, and it is expected to maintain this tendency. Both in large and small scales, there have been numerous developments and research with the aim of generating fuels and energy using different raw materials such as alternative crops, algae and waste cooking oil. Capparis spinosa seed (containing 3...

Biodiesel, one of renewable bioenergy, has been produced from various resources such as vegetable oil, animal fats, used frying oils and microbial oils etc.1–3 Extensive study has been conducted on using edible oils, which limited by the availability of oil inventories, but these materials result in high sensitivity of prices to oil demand from industry.4–7 In order to not compete with edible o...

introduction biofuels are considered as one of the largest sources of renewable fuels or replacement of fossil fuels. combustion of plant-based fuels is the indirect use of solar energy. biofuels significantly have less pollution than other fossil fuels and can easily generate from residual plant material. waste and residues of foods and wastewater can also be a good source for biofuel producti...

Abstract—Broiler slaughter waste has become a major source of pollution throughout the world. Utilization of broiler slaughter waste by dry rendering process produced Rendered Chicken Oil (RCO), a cheap raw material for biodiesel production and Carcass Meal a feed ingredient for pets and fishes. Conversion of RCO into biodiesel may open new vistas for generating wealth from waste besides contro...

Nowadays, the increasing oil consumption throughout the world induces crucial economical, security, and environmental problems. As a result, intensive researches are undertaken to find appropriate substitution to fossil fuels. In view of the large amount of eucalyptus trees present in arid areas, we focus in this study on the investigation of using eucalyptus biodiesel as fuel in diesel engine....

Fuels from renewable resources have gained worldwide interest due to limited fossil oil sources and the possible reduction of atmospheric greenhouse gas. One of these fuels is so called biodiesel produced from vegetable oil by transesterification into fatty acid methyl esters (FAME). To get a first insight into changes of health hazards from diesel engine emissions (DEE) by use of biodiesel sci...

As crude oil price reach a new high, the need for developing alternate fuels has become acute. Alternate fuels should be economically attractive in order to compete with currently used fossil fuels. In this work, biodiesel (ethyl ester) was prepared from waste cooking oil collected from a local restaurant in Halifax, Nova Scotia, Canada. Ethyl alcohol with sodium hydroxide as a catalyst was use...

Biodiesel waste is a by-product of the biodiesel production process that contains a large amount of crude glycerol. To reuse the crude glycerol, a novel bioconversion process using Enterococcus faecalis was developed through physiological studies. The E. faecalis strain W11 could use biodiesel waste as a carbon source, although cell growth was significantly inhibited by the oil component in the...

THE EFFECT OF BIODIESEL BLENDS ON A MULTI-CYLINDER ENGINE AND THIMPACT ON AFTERTREATMENTByAMY PETERSON August 2013Advisor: Dr. Ming-Chia Lai Major: Mechanical Engineering Degree: Doctor of Philosophy Recently, topics including global warming, increased environmental awareness,recycling, and organically produced meat and vegetables have been prevalent in themedia and rese...