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Ethanol fuel has a "gasoline gallon equivalency" (GGE) value of 1.5, i.e. to replace the energy of 1 volume of gasoline, 1.5 times the volume of ethanol is needed. [4] [5] Ethanol-blended fuel is widely used in Brazil, the United States, Canada, and Europe (see also Ethanol fuel by country). [2]
For comparison, that same one unit of fossil fuel invested in oil and gas extraction (in the lower 48 States) will yield 15 units of gasoline, a yield an order of magnitude better than current ethanol production technologies, ignoring the energy quality arguments above and the fact that the gain (14 units) is both declining and not carbon neutral.
Those estimates hint that $4 per bushel corn might be priced at only $3 without demand for ethanol fuel." [180] Reviewing eight years of actual implementation of the Renewable Fuel Standard, researchers from the University of Wisconsin found the standard increased corn prices by 30% and prices of other crops by 20%. [125]
Ethanol's chemical composition. Similar to other gasoline structures, biodiesel is built from a foundation of hydrocarbons. BG100, or 100% biogasoline, is formulated so that it can immediately be used as a drop-in substitute for petroleum-derived gasoline in any conventional gasoline engine, unlike ethanol.
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 issue could hurt the biofuel industry, which sees SAF as ethanol’s best chance at growth since electric cars have cut into its market as a gasoline additive. Little to no ethanol will ...
Cellulosic ethanol is an environmentally friendly and renewable transportation fuel that can be produced from forest biomass. Trees are a particularly promising feedstock because they grow all year round, require vastly less fertiliser and water and contain far more carbohydrates (the chemical precursors of ethanol) than food crops do. [ 8 ]
Carbon-neutral fuel is fuel which produces no net-greenhouse gas emissions or carbon footprint. In practice, this usually means fuels that are made using carbon dioxide (CO 2 ) as a feedstock . Proposed carbon-neutral fuels can broadly be grouped into synthetic fuels , which are made by chemically hydrogenating carbon dioxide, and biofuels ...