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Biofuel is a fuel that is produced over a short time span from biomass, rather than by the very slow natural processes involved in the formation of fossil fuels such as oil. Biofuel can be produced from plants or from agricultural, domestic or industrial bio waste.
Any fuel produced from agricultural produce or organic waste is a biofuel. Humans have used biofuels since time immemorial — for example, burning wood and manure for cooking, heating and light. ...
Renewable fuels are fuels produced from renewable resources. Examples include: biofuels (e.g. Vegetable oil used as fuel, ethanol, methanol from clean energy and carbon dioxide [1] or biomass, and biodiesel), Hydrogen fuel (when produced with renewable processes), and fully synthetic fuel (also known as electrofuel) produced from ambient carbon dioxide and water.
The United States used biofuel in the beginning of the 20th century. For example, models of Ford T ran with ethanol fuel. Then the interest in biofuels declined until the first and second oil crisis, in 1973 and 1979. [citation needed] The Department of Energy established the National Renewable Energy Laboratory in 1974 and started to work in ...
Biomass is a term used in several contexts: in the context of ecology it means living organisms, [1] and in the context of bioenergy it means matter from recently living (but now dead) organisms. In the latter context, there are variations in how biomass is defined, e.g., only from plants, [ 2 ] from plants and algae, [ 3 ] from plants and ...
Biofuel development and use is a complex issue because there are many biofuel options which are available. Biofuels, such as ethanol and biodiesel , are currently produced from the products of conventional food crops such as the starch, sugar and oil feedstocks from crops that include wheat , maize , sugar cane , palm oil and oilseed rape .
Biofuel can be produced from any carbon source that can be replenished rapidly e.g. plants. Many different plants and plant-derived materials are used for biofuel manufacture. Perhaps the earliest fuel employed by humans is wood. Evidence shows controlled fire was used up to 1.5 million years ago at Swartkrans, South Africa.
One of the many policy tools used to promote biofuel fuels is a minimum renewable fuel usage requirement. In the United States, this usage requirement is known as the Renewable Fuel Standard (RFS), whereby a minimum volume of biofuels is to be used in the national transportation fuel supply each year.