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Yellow grease, also termed used cooking oil (UCO), used vegetable oil (UVO), recycled vegetable oil, or waste vegetable oil (WVO), is recovered from businesses and industry that use the oil for cooking.
It is used to feed livestock, and to manufacture soap, make-up, clothes, rubber, and detergents. Due to competition from these other industrial sectors, the EIA estimates that less than a third of yellow grease could be spared for biodiesel production annually.
It is distinct from brown grease; yellow grease is typically used frying oils from deep fryers, whereas brown grease is sourced from grease interceptors.. All collections need to be carried out by a company registered as a waste carrier by the Environment Agency. On each collection a waste transfer note needs to the filled out and copies held by both parties for a minimum of 3 years. Waste transfer notes can be hard paper copies or electronic versions. Here is a
example of a waste transfer note
currently in use by a UK waste cooking oil company.
"Grease Rustlers"
by Susan McCarthy. Salon.com, November 6, 2000. {{DEFAULTSORT:Yellow Grease Vegetable oils Recycling Greases
Yellow grease, also termed used cooking oil (UCO), used vegetable oil (UVO), recycled vegetable oil, or waste vegetable oil (WVO), is recovered from businesses and industry that use the oil for cooking.
It is used to feed livestock, and to manufacture soap, make-up, clothes, rubber, and detergents. Due to competition from these other industrial sectors, the EIA estimates that less than a third of yellow grease could be spared for biodiesel production annually.
It is distinct from brown grease; yellow grease is typically used frying oils from deep fryers, whereas brown grease is sourced from grease interceptors.example of a waste transfer note
currently in use by a UK waste cooking oil company.
Oil renderers
The recycling of waste cooking oil (aka restaurant grease, used cooking oil or yellow grease) is a process known as “rendering”. During the rendering process fatty acid is separated from the moisture, the solids and any impurities that are present in the waste cooking oil. The rendering of waste cooking oil produces one usable element and several waste elements. Some collectors do their own rendering while others may sell their grease for a lower price to a company with the space and equipment to do so. Refined used cooking oil is what is left after separation of solids and moisture from yellow grease. Refined used cooking oil is the base for producing biodiesel and renewable diesel. Refined used cooking oil then goes through either to transesterification to produce biodiesel or hydrodeoxygenation to produce renewable diesel.See also
* Bioliquids * Biodiesel * Vegetable oil fuel *Cooking oil
Cooking oil is plant, animal, or synthetic liquid fat used in frying, baking, and other types of cooking. It is also used in food preparation and flavoring not involving heat, such as salad dressings and bread dips, and may be called edible oil. ...
* Vegetable oils as alternative energy
* Gutter oil (counterfeit cooking oil)
* Fatberg
Notes
External links
"Grease Rustlers"
by Susan McCarthy. Salon.com, November 6, 2000. {{DEFAULTSORT:Yellow Grease Vegetable oils Recycling Greases