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What is meant by biofuels?

Updated: 11/12/2022
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14y ago

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A biofuel is any explosive liquid used to power vehicles that is produced from plant matter. This plant matter is usually referred to as Biomass, and biofuels are often looked to as a future replacement for petroleum fuels.

Although 1st generation biofuels could only process corn starch to make ethanol, it has received quite a bad reputation, especially considering it takes more energy and carbon to produce the ethanol than the ethanol itself is worth.

New, advanced biofuels can be produced using the entire plant, of any type or source, to make fuel identical to gasoline today.

Other liquid biofuels can be produced to make biodiesel, a renewable fuel for diesel engines. It is normally made from soybean oil, but can be made from any oil-producing crop.

The word "biofuels" in its literal sense can also include the use of biomass to be directly burned for its heat content. Some US power plants are using pelleted switchgrass, for example, to replace up to 20% of the coal they normally burn for power generation. The use of biogases is also on the rise, with some US dairies using manure digesters to produce methane for power generation.

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