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Lecture 6 – Natural Gas

Lecture 6 – Natural Gas - o Rest of World o...

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Lecture 6 – Natural Gas Natural Gas: Composition C x H (2x+2) Natural Gas: Characteristics Consist mainly of methane (CH 4 ), some heavier hydrocarbons (ethane, propane and butane), and N 2 and CO 2 . CO 2 content as high as 70% by volume Desirable fuel because: o Easy to combust as a gas o Easily mixes with air o Furnace size is less than those for coal and oil o Combusted gas is used to directly drive the turbine o Produce 1/2 the amount of CO 2 per unit heating value as does coal and 3/4 as much as oil Methane is an important green-house gas: o CH 4 is a stronger absorber of infrared radiation than CO 2 per molecule o Concentration are low – 1.7 ppmv o Assuming continued growth of CH 4 and CO 2 in the atmosphere, by 2100 o CH 4 may contribute as much as 15% to global warming Natural Gas: Production and Consumption Trillion cubic feet World Natural Gas Consumption by Region at 2000 (Highest to Lowest) o North America o Russia/Soviet Union o Europe
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Unformatted text preview: o Rest of World o Asia-Pacific Natural Gas: Reserves • Highest to Lowest o Russia o Iran o Qatar o Saudi Arabia o United Arab Emirates o United States Natural Gas: Transport • Transport of natural gas by pipes mostly from Russia to Europe • Major European Recipients of Russia Natural Gas Exports (Highest to Lowest) o Germany o Italy o Turkey o France o Hungary Natural Gas: LNG Terminals • Terminal Locations around USA and Europe that accept natural gas by ship Natural Gas: Alternative Sources • Coal Bed Methane • Shale Basins o Shale Basins around Pennsylvania, Tennessee, Ohio, and Indiana • Devonian Shale Gas • “Tight” Gas • Meteorite Impact o Meteorite (Bolide) Natural Gas: Methane Hydrates • Forms in the hydrate stability zone in the ocean Natural Gas: Methane Hydrate Reserves • Marine Hydrates o 3100 TM 3 to 7650000 TM 3 • Global Hydrates o 15000 TM 3 o...
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