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The following table shows the vegetable oil yields of common energy crops associated with biodiesel production. Included is growing zone data, relevant to farmers and agricultural scientists. This is unrelated to ethanol production, which relies on starch, sugar and cellulose content instead of oil yields.
The production of algae to harvest oil for biodiesel has not yet been undertaken on a commercial scale, but feasibility studies have been conducted to arrive at the above yield estimate. In addition to its projected high yield, algaculture — unlike crop-based biofuels — does not entail a decrease in food production , since it requires ...
Typical yield of oil as pure biodiesel is 100,000 L/km 2 (68,000 US gal/sq mi; 57,000 imp gal/sq mi) or higher, making biodiesel crops economically attractive, provided sustainable crop rotations are used that are nutrient-balanced and prevent the spread of disease such as clubroot. Biodiesel yield of soybeans is significantly lower than that ...
Biodiesel production is the process of producing the biofuel, biodiesel, through the chemical reactions of transesterification and esterification. [1] This process renders a product (chemistry) and by-products. The fats and oils react with short-chain alcohols (typically methanol or ethanol). The alcohols used should be of low molecular weight.
On October 16, 2006, the city of Kalamazoo, Michigan announced an agreement with local Western Michigan University's biodiesel R & D program to use the biodiesel research to build a 100 thousand US gallons per year (380 m 3 /a) production system at the city wastewater treatment plant, and convert the city bus system to run entirely off of the fuel.
The United States produces mainly biodiesel and ethanol fuel, which uses corn as the main feedstock. The US is the world's largest producer of ethanol, having produced nearly 16 billion gallons in 2017 alone. [1] The United States, together with Brazil accounted for 85% of all ethanol production, with total world production of 27.05 billion ...
However, due to increases in corn crop yield and more efficient farming practices corn ethanol had gained energy efficiency. [ 3 ] Ken Cassman , a professor of agronomy at the University of Nebraska–Lincoln , said in 2008 that ethanol has a substantial net positive direct energy balance: 1.5 to 1.6 more units of energy are derived from ...
Biodiesel represents the largest share of this (78%, far ahead of bioethanol with 22%). The unquestionable biodiesel leader in Europe is the French company Diester Industrie producing of 2 million tons of biodiesel. [19] In bioethanol, the French agro-industrial group Téréos is increasing its production capacities. Although France is bound by ...