I thought it would be interesting if we compared CO2 output given the same Btu output per pound (lb) for Coal, Gasoline and Diesel Fuel
Using 19,167 Btu/lb of Gasoline as a reference point we'll compare CO2 output for coal, gasoline and diesel fuel. Coal 3.4 lbs CO2 per 19,167 Btu of - bituminous/anthracite [19,167/12,250*2.2 = 3.4 lbs CO2 per pound of gasoline] 4.2 lbs CO2 per 19,167 Btu of - lignite/sub-bituminous [19,167/7,350*1.6 = 4.2 lbs CO2 per pound of gasoline] Gasoline 3.3 lbs CO2 per 19,167 Btu Diesel No.1, No.2, No.4 Fuel Oil 3.3 lbs CO2 per 19,167 Btu [19,167/18,643*3.2 = 3.3 lbs CO2 per pound of gasoline] using the information below. NOTE: numbers have been averaged and rounded off. ----- Form EIA-1605, Voluntary Reporting of Greenhouse Gases, Instructions, 2002, Appendices B and C. [page 51,52] 74 page, 1.8MB PDF ftp://ftp.eia.doe.gov/pub/oiaf/1605/cdrom/pdf/1605INST02.pdf after doing the math -- Coal CL Anthracite AC 3,852.16 lbs per short ton (2000 lbs) [3852.16/2000 = 1.926 lbs. CO2 per pound of fuel] 1.926 lbs. CO2 per pound of fuel Bituminous BC 4,931.30 lbs per short ton 2.465 lbs CO2 per pound of fuel [average 2.2 lbs CO2 per pound of fuel] Subbituminous SB 3,715.90 lbs per short ton 1.858 lbs CO2 per pound of fuel Lignite LC 2,791.60 lbs per short ton 1.396 lbs CO2 per pound of fuel [average 1.6 lbs CO2 per pound of fuel] Motor Gasoline MG 19.564 lbs per US gallon [20/6 = 3.333 lbs CO2 per pound of fuel] 3.333 lbs CO2 per pound of fuel Distillate Fuel (No. 1, No. 2, No.4 Fuel Oil and Diesel) DF 22.384 lbs per US gallon [22.4/7 = 3.2 lbs CO2 per pound of fuel] 3.2 lbs CO2 per pound of fuel ----- Energy Conversion Facts http://bioenergy.ornl.gov/papers/misc/energy_conv.html Gasoline: US gallon = 115,000 Btu 115,000/6 = 19,167 Btu/lb Petro-diesel = 130,500 Btu/gallon 130,500/7 = 18,643 Btu/lb Coal - bituminous/anthracite = 11,500-13,000 Btu/lb [average 12,250 Btu/lb] Coal - lignite/sub-bituminous = 6,500-8,200 Btu/lb [average 7,350 Btu/lb] Note that the energy content (heating value) per unit mass varies greatly between different "ranks" of coal. "Typical" coal (rank not specified) usually means bituminous coal, the most common fuel for power plants (27 GJ/t). _______________________________ ------------------------ Yahoo! Groups Sponsor ---------------------~--> FREE Cell Phones with up to $400 Cash Back! http://us.click.yahoo.com/_bBUKB/vYxFAA/i5gGAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/ Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
