[20220316]IF10752_甲烷排放量：基础.pdf

https:/crsreports.congress.gov Updated March 16, 2022Methane Emissions: A PrimerMethane: The Chemical Methane is the worlds simplest hydrocarbon, with a chemical formula of CH4 (one atom of carbon and four atoms of hydrogen). It is gaseous under normal atmospheric conditions and is commonly produced through the decomposition of organic materials in the absence of oxygen. It is released into the atmosphere by natural sources such as wetlands, oceans, sediments, termites, volcanoes, and wildfires as well as human activities such as oil and natural gas systems, coal mines, landfills, wastewater treatment facilities, and the raising of livestock. Methane: The Fuel and Feedstock Methane is the primary component of natural gas. When extracted from geologic formations or captured by other means, it can be used as either a fuel or as a chemical feedstock for industry. When used as a fuel, methane has many advantages over other hydrocarbons (e.g., coal and oil). Methane is more versatile: It can heat homes, fuel stoves, run vehicles, fire power plants, and be exported, either as a gas or liquefied, to support the energy needs of U.S. trading partners. Methane is cleaner-burning: It emits,