![]() Carbon monoxide(CO) is a colorless, odorless, and tasteless flammable gas that is slightly less dense than air.The effect of Sulphur dioxide on human health can be chest constriction, headache, vomiting & death.It is released naturally by volcanic activity and is produced as a by-product of copper extraction and the burning of fossil fuels.It is a toxic gas responsible for the smell of burnt matches.Sulfur dioxide (SO 2) is a chemical compound with the formula SO 2.The effect of Hydrogen sulfide on human health are nausea, irritated eyes & throat.It is poisonous, corrosive, and flammable. ![]() It is a colorless chalcogen hydride gas with the characteristic foul odor of rotten eggs.Hydrogen sulfide is a chemical compound with the formula H 2 S.Aldehyde irritates nasal and respiratory tracts.Aldehyde is any of a class of organic compounds in which a carbon atom shares a double bond with an oxygen atom, a single bond with a hydrogen atom, and a single bond with another atom or group of atoms.Hence, 2 and 3 are correct and 1 is not correct. However, Hydrogen-Enriched Compressed Natural Gas (HCNG) is still under research as though it increases fuel efficiency and reduces carbon emission but it has also led to increased NOx emissions.One of the solutions for this hurdle is to blend hydrogen with methane Since hydrogen infrastructure and refueling stations are not meeting the demand, the widespread introduction of hydrogen vehicles is not possible in the near future.Hydrogen is an excellent additive to improve the combustion of hydrocarbon fuel due to its low ignition energy, high reactivity, diffusivity and burning velocity.The rapid increase in the emission of greenhouse gases and very strict environmental legislation are major motivating factors for the usage of hydrogen in fuel cells and internal combustion engines. ![]() ![]() Hydrogen has been regarded as a future secondary fuel for power systems due to its carbon-free operation.It is being treated as the first step towards a future hydrogen economy.HCNG allows customers early hydrogen deployment with nearly commercial technology.HCNG stands for hydrogen-enriched compressed natural gas and it combines the advantages of both hydrogen and methane.The blending of hydrogen with CNG provides a blended gas termed HCNG. ![]() Hydrogen-Enriched Compressed Natural Gas (HCNG): ![]()
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