Alcohol fuels also known as bioalcohols are generally are of organic rather than petroleum sources. All over the history alcohol has been used as fuel in spite of fossil fuels, which have become the leading energy resource for the modern world. There are actually four various sorts of bioalcohol: methanol, ethanol, propanol (propane) and butanol (butane). Let’s have a look over each one of them broadly.
Ethanol and Methanol - Ethanol is an alcohol fuel that's derived largely from grain whereas methanol is an alcohol fuel that's derived chiefly from coal. Methanol and ethanol can both be obtained from fossil fuels (but are not fossil fuels) or from biomass. They produce less greenhouse gas emissions than conventional fuels. In today’s world where all are seeking a better option to power their vehicles without burning fossil fuels they are good alternatives.
An obvious advantage of ethanol is that it can easily be made virtually anywhere there is natural plant and animal life and the reality that it burns clean without any toxic emissions makes it an palpable choice. Methanol on other hand is used in racing cars and comparatively has received a less attention than ethanol. But the good thing about methanol is its fairly elevated octane rating that actually means it performs better than normal gasoline.
Ethanol is widely used in Brazil and in the United States, and together both countries produced 89 percent of the world's ethanol fuel in 2008. Ethanol fuels available are E85 (85% ethanol, 15% gasoline), E10 (90% gasoline, 10% ethanol), E15 (15% ethanol, 85% gasoline), E20 (20% ethanol, 80% gasoline).
Propanol and Brutanol - Propanol and butanol are significantly less toxic and less volatile than methanol. Proponal as like other bioalcohols is not used as a fuel source for petrol engines directly but rather used as a solvent. However, it is used as a resource of hydrogen in some types of fuel cell which can generate higher voltage than methanol, the fuel option for most alcohol-based fuel cells. Brutanol, the other bioalcohol Butanol can be used in most automobiles without translation though if used in low ratio mixtures with gasoline. It could be a feasible alternative energy, particularly if drain filtration system would be created in order to arrest most of the waste byproducts which could be possibly recycled.