What fuel causes less pollution?

Answer 1

ethanol

Answer:

Hydrogen fuel creates only water when it burns. Methane (natural gas) creates less carbon dioxide than gasoline and diesel. All of these create less pollution than heavy oil or coal. Thee missions from burning alcohol fuels are somewhat less than gasoline and diesel if you look just at end of tailpipe emissions (except for higher levels of ketones, aldehydes and other compounds). The total pollution package for alcohol fuels must however include the growing of the crops, fermentation and transportation as well. The power in alcohol fuels id less per liter than gasoline so it requires more fuel to move a given distance.

Answer 2

Biofuels are carbon-neutral, in that they add no additional carbon dioxide to the atmosphere.

Fuels which are burnt always have some pollutants associated with them - Carbon dioxide, nitrogen oxides, unburned fuel, reformate/cracked fuel.

These can be removed by proper treatment systems.

The fuels which burn most cleanly have the lowest initial carbon content per unit energy (hydrogen, methane (natural gas)) however these can still produce nitrogen oxides. Increasing carbon content (methane --> liquid fuels --> coal) increases the carbon dioxide per unit of energy ratio, the soot and particulate output. There pollutants such as sulfur and radioactive materials are present in heavier fuel oils and coal.

Answer 3

Hydrogen is the cleanest burning fuel, with only water emissions.

Any kind of biofuel is carbon neutral, adding no additional carbon dioxide to the atmosphere.

Of the fossil fuels (coal, oil and natural gas), gas releases the least carbon dioxide.

Answer 4

clean gas