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The main pollution from carbon-based fuel is carbon dioxide, also called CO2, which is the product of burning a hydrocarbon fuel like coal, oil or gas, with oxygen taken from the air. Uniting carbon with oxygen produces CO2, and releases energy as heat which is used to drive a heat-engine (a gasoline or diesel engine or a gas turbine, or a steam turbine for which the fuel is used to produce steam from water as an intermediary).
Among the carbon fuels, gas is said to be less polluting because the atom is lighter and thus less CO2 is produced for a given amount of energy output.
Hydrogen is less polluting as a fuel because its product, after burning with oxygen, is only water vapour, which is a greenhouse gas but excess water vapour falls as rain. However hydrogen is mainly produced from water in which the hydrogen and oxygen are separated by adding energy by electrolysis. Thus hydrogen is only a means of storing energy because the same energy is then released by the burning process.
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Which fuels are less polluting?
CNG(compressed natural gas) bio gas
Why some cooking fuels are less polluting?
methanebutaneoil (various grades)animal fatcow, yak, buffalo manureliquid alcoholsolid alcoholwaxes and paraffinsgasoline and kerosenewoodcoalstrawcharcoal
Is nuclear energy more polluting than other fuels?
Nuclear energy produces less air pollution and greenhouse gas emissions compared to fossil fuels like coal, oil, and natural gas. However, the process of mining and processing uranium, as well as the storage of radioactive waste, can have environmental impacts.
What are the least expensive and least polluting fuels used in automobiles?
gasoline
Why does a power-station owner prefer to buy a low-sulphur coal than ordinary coal?
The sulphur in fuels produces sulphur dioxide when it burns, which is a major cause of acid rain. Low sulphur fuels are less polluting.
Why is the replacement of fossil fuels by renewable energy sources highly probable?
Fossil fuels are polluting, releasing carbon dioxide, a greenhouse gas that is causing global warming.Renewable energy is clean, non-polluting, free, and everlasting.
Why are all fossil fuels polluting?
all are hydrocarbons, on burning produces mono carbons
What polluting gas produced from burning hydrocarbon fuels is not a problem with nuclear energy?
sulfur
How does hydropower impact the enivorment?
gives an alternative energy source. instead of polluting the air with fossil fuels.
What are the good points of fossil fuels?
If you ignore the environmental costs and the damage to the planet, fossil fuels (coal, oil and natural gas) are a quick source of dirty polluting energy.
How do you preserve nature so animals can survive?
stop using fossil fuels and stop deforestation. stop polluting the oceans
What benefits does solar energy have?
Once installed it's non-polluting, doesn't use up any fossil fuels and is renewable.
