Biofuel is made by converting biomass into liquid fuels (if interested check these biofuel basics out). The most common types are ethanol (Average Octane (AKI rating/RON) - 99.5/108.6 which is a higher octane rating than most petroleum) and biodiesel which is the product of the convertion of oils and fats of natural origin into fatty acid methyl esters (Average Octane (AKI rating/RON) of methanol is 98.65/108.7). And I had a chemistry homework to make biodiesel at home - and I actually made it. Here is the guide I followed. But be careful and do not forget about safety. As to how it works - easily - just use it instead of petrol, though you may need to adjust the engine. And here is one more article on how biodiesel works. Best
Biofuels are made from organic matter, such as crops (eg corn, soybeans) or waste products (eg cooking oil, animal fat). Organic matter is processed to extract sugars, oils or other compounds that can be converted into fuel. This process usually involves fermentation, distillation and refining.
In terms of using biofuels in vehicles, they can be used as a substitute or blended with conventional gasoline or diesel fuel. They act like conventional fuels, burning in the engine to release energy and power the vehicle. However, biofuels emit less carbon dioxide and other pollutants than gasoline or diesel.
It is possible to make biofuels at home on a small scale, but it requires special equipment and expertise to produce a fuel that meets standard standards for use in vehicles. It is generally recommended to obtain biofuels from commercial sources.
The octane value of biofuels can vary depending on the specific biofuel and production method. Biofuels typically have lower octane ratings than conventional gasoline, which can affect engine performance and fuel efficiency.