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As produced, biogas contains water vapor. The fractional volume of water vapor is a function of biogas temperature; correction of measured gas volume for water vapour content and thermal expansion is easily done via simple mathematics [23] which yields the standardized volume of dry biogas.
Biogas does not contribute to increasing atmospheric carbon dioxide concentrations because the gas is not released directly into the atmosphere and the carbon dioxide comes from an organic source with a short carbon cycle. Biogas may require treatment or 'scrubbing' to refine it for use as a fuel. [118]
Renewable natural gas (RNG), also known as biomethane, is a renewable fuel and biogas which has been upgraded to a quality similar to fossil natural gas and has a methane concentration of 90% or greater. [1]
Hydrogen sulfide is commonly found in raw natural gas and biogas. It is typically removed by amine gas treating technologies. In such processes, the hydrogen sulfide is first converted to an ammonium salt, whereas the natural gas is unaffected. [57] [58] RNH 2 + H 2 S ⇌ [RNH 3] + + SH −
Landfill gas, a less clean form of biogas, is produced in landfills through naturally occurring anaerobic digestion. If it escapes into the atmosphere, it acts as a greenhouse gas . In Sweden, "waste-to-energy" power plants capture methane biogas from garbage and use it to power transport systems. [ 75 ]
This list is sorted by boiling point of gases in ascending order, but can be sorted on different values. "sub" and "triple" refer to the sublimation point and the triple point, which are given in the case of a substance that sublimes at 1 atm; "dec" refers to decomposition. "~" means approximately.
The gas may be used by medical professionals for sedation during minor medical procedures, and can also be administered to treat alcohol dependence during withdrawals. What does nitrous oxide do ...
Ethanol's chemical composition. Similar to other gasoline structures, biodiesel is built from a foundation of hydrocarbons. BG100, or 100% biogasoline, is formulated so that it can immediately be used as a drop-in substitute for petroleum-derived gasoline in any conventional gasoline engine, unlike ethanol.
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