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  2. Ethanol fuel energy balance - Wikipedia

    en.wikipedia.org/wiki/Ethanol_fuel_energy_balance

    Clean production bioethanol [20] is a biofuel obtained by maximizing non-greenhouse gas emitting (renewable) resources: energy directly consumed to make the ethanol is renewable energy . The farm equipment and ethanol plant use an ethanol engine , biodiesel , air engine or electricity cogenerated during ethanol production, or even wind power ...

  3. Renewable resource - Wikipedia

    en.wikipedia.org/wiki/Renewable_resource

    Oceans often act as renewable resources. Sawmill near Fügen, Zillertal, Austria Global vegetation. A renewable resource (also known as a flow resource [note 1] [1]) is a natural resource which will replenish to replace the portion depleted by usage and consumption, either through natural reproduction or other recurring processes in a finite amount of time in a human time scale.

  4. Biofuel - Wikipedia

    en.wikipedia.org/wiki/Biofuel

    Biologically produced alcohols, most commonly ethanol, and less commonly propanol and butanol, are produced by the action of microorganisms and enzymes through the fermentation of sugars or starches (easiest to produce) or cellulose (more difficult to produce).The IEA estimates that ethanol production used 20% of sugar supplies and 13% of corn ...

  5. Renewable fuels - Wikipedia

    en.wikipedia.org/wiki/Renewable_fuels

    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.

  6. An Unobvious Play on Rising Ethanol RIN Prices

    www.aol.com/news/2013-06-25-an-unobvious-play-on...

    What a crazy year this has been for ethanol producers and the refiners responsible for blending it into gasoline. After barely hovering above zero for much of the past few years, ethanol renewable ...

  7. United States biofuel policies - Wikipedia

    en.wikipedia.org/wiki/United_States_biofuel_policies

    Section 1512 authorizes the Secretary of Energy to provide grants to merchant producers of cellulosic biomass ethanol, waste-derived ethanol, and approved renewable fuels in the United States to assist them in building eligible production facilities for the production of ethanol or approved renewable fuels.

  8. Carbon-neutral fuel - Wikipedia

    en.wikipedia.org/wiki/Carbon-neutral_fuel

    Using co-product to generate electricity is one strategy that might improve the overall carbon balance. Another thing that needs to be acknowledged is that environmental impacts can also come from water management, carbon dioxide handling, and nutrient supply, several aspects that could constrain system design and implementation options.

  9. Alcohol fuel - Wikipedia

    en.wikipedia.org/wiki/Alcohol_fuel

    A dish of ethanol aflame. Various alcohols are used as fuel for internal combustion engines.The first four aliphatic alcohols (methanol, ethanol, propanol, and butanol) are of interest as fuels because they can be synthesized chemically or biologically, and they have characteristics which allow them to be used in internal combustion engines.