| Popis: |
Gaseous fuels are generally easier to handle and burn than are liquid or solid fuels. Gaseous fossil fuels include natural gas (primarily methane and ethane) and liquefied petroleum gases (LPGs) primarily propane and butane. Gaseous man-made or artificial fuels are mostly derived from liquid or solid fossil fuels. Liquid fossil fuels have evolved from animal remains through eons of deep underground reaction under temperature and pressure, while solid fuel evolved from vegetable remains. Properties that concern most users of natural gases relate to the heat available from their combustion, flow characteristics, and burnability in a variety of burner types. Natural gases are classified as “sweet” or “sour,” depending on their content of sulfur compounds. Properties that concern most users of natural gases relate to the heat available from their combustion, flow characteristics, and burnability in a variety of burner types. LPGs are by-products of natural gas production and of refineries. Keywords: gaseous fuels; liquefied petroleum gases (LPGs); natural gases; vegetable remains |
