7% biodiesel, 93% petrodiesel is labeled B7.10% biodiesel, 90% petrodiesel is labeled B10.20% biodiesel, 80% petrodiesel is labeled B20.Much of the world uses a system known as the "B" factor to state the amount of biodiesel in any fuel mix: Blends Biodiesel sampleīlends of biodiesel and conventional hydrocarbon-based diesel are most commonly distributed for use in the retail diesel fuel marketplace. The US National Biodiesel Board defines "biodiesel" as a mono-alkyl ester. Biodiesel blends can also be used as heating oil. However, it is usually blended with petrodiesel (typically to less than 10%) since most engines cannot run on pure biodiesel without modification. Unlike the vegetable and waste oils used to fuel converted diesel engines, biodiesel is a drop-in biofuel, meaning it is compatible with existing diesel engines and distribution infrastructure. It is typically made by chemically reacting lipids such as animal fat ( tallow), soybean oil, or some other vegetable oil with an alcohol, producing a methyl, ethyl or propyl ester by the process of transesterification. ( January 2023) ( Learn how and when to remove this template message)īiodiesel is a form of diesel fuel derived from plants or animals and consisting of long-chain fatty acid esters. Please help by removing excessive detail that may be against Wikipedia's inclusion policy.
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