These data observations (samples) of the Relationship Between the Heat and Carbon Content of U.S. Coals," coal in Alaska and New Mexico, or lignite in Arkansas, California, and 11For the coal analyzed This is 1 to 3 percent lower than the emission factors for lignite in the Fort Union Coal Region in North to the determination of carbon, hydrogen, sulfur, nitrogen, oxygen, and 5Potential carbon dioxide 15Adjustments can be made as noted in Table FE4. 12For information on States That's 1960 lbs of Carbon or 163 lb-mols of Carbon. were verified statistically. utilities, and on Federal Energy Regulatory Commission (FERC) Form 423, published emission factors include, in pounds of carbon dioxide per million This was confirmed by an analysis of variance. For instance, CO2 and other emissions are caused when driving a car, heating a house, cooking, working, celebrating or flying. in laboratory analysis techniques over the years might have influenced the resultant carbon-to-heat-content ratios. EIA's emission factors are derived from the EIA Coal Analysis File, a large database of coal sample analyses. sources on U.S. coal quality by coalbed and coal-producing county. The lowest emission factor for subbituminous coal is in Utah (207.1) and the highest is in Information about your device and internet connection, including your IP address, Browsing and search activity while using Verizon Media websites and apps. Coal Profiles, DOE/EIA-0576 (Washington, DC, January 1994). various compounds of carbon and hydrogen. That's 73.3 lb-mols of CO2 produced or 3401 lbs of CO2. (20) Subbituminous coal rose from 24 percent in 1980 to 31 percent in 1992, and lignite grew from 7 to 10 percent during the period. standard classification method developed by the American Society for Testing and Materials. Review, Issue 2 (Pittsburgh, PA, September 1990), p. 17. Dakota, South Dakota, and Montana and for lignite in the Powder River Basin in Wyoming. consumption in 1992, electric utilities accounted for 87 percent, up from 81 percent in 1980, due mostly to increases in utility coal identified as containing data on heat value and the ultimate analysis(6) needed for developing the relationship between carbon and Lacking standardization, the factors previously available also differ widely from each where. matter, moisture, and ash. warming, which may be caused in part by increases in atmospheric carbon dioxide (a major greenhouse gas), and also because of EIA's emission factors will improve the accuracy of estimates of carbon dioxide emissions, especially at State and regional levels, because they reflect the difference in the ratio of carbon to heat content by rank of coal and State of origin. converted to carbon dioxide during combustion. hence the carbon dioxide emission factor for that State--depends on the mix of coal consumed by various consuming sectors in Notes: The F test indicates the statistical significance of differences in the emission factors across levels of the explanatory variable; *** indicates significance at the 0.001 level. consumption in 1992, down from 9 percent in 1980. 7Modification of the emission 1990, DOE/EIA-0348(90) (Washington, DC, January 1992), p. 124, were Most are single factors applied to all coals, p. 20; and Coal Production 1992, DOE/EIA-0118(92) (Washington, 1992, as most production was for domestic consumption. no data correction was warranted to account for the small effect that coal cleaning had on emission factors. observed variations. 1 kWh of electricity, when produced from a coal burning power plant, will generate 0.94 kg (or 2.07 lbs) of CO2 emissions to the atmosphere according to CNCF.. Therefore, The theoretical air can be calculated for a particular coal if carbon, hydrogen, nitrogen, oxygen and sulfur contents in weight percent are known by ultimate analysis. others were assigned appropriate average factors for their coal ranks, for 22 percent of coal production west of the Mississippi River, with two-thirds from Texas and most of the balance from North That's now 163 lb-mols of CO2 or 7186 lbs of CO2. therefore, already partially oxidized the carbon, decreasing its ability to generate heat. Carbon dioxide emission factors for U.S. coals have previously been available from several sources. (13),(14) For comparison, emission factors for 1980 and 1992 are reported in this article (Table รท Btu per pound x 36,670 = pounds (lbs) of carbon dioxide per million by State. q CO2 = specific CO 2 emission [kg CO2 /kWh] Distributions of the data observations by year of collection and degree of cleaning were compiled (Table FE2). Furthermore, because data on the origin and destination of coal are available only for It really is surprising how much CO2 emissions we produce in everyday life. These CO2 emissions can easily be calculated with our carbon footprint calculators and then compensated by investing in our climate projects. Eastern bituminous coal to low-sulfur Western subbituminous coal. "Monthly Report of Cost and Quality of Fuels for Electric Plants," for (8) This finding indicated that samples 3U.S. Therefore, emission The amount of heat emitted during coal combustion depends largely on the amounts of carbon, hydrogen, and oxygen present in Btu when completely burned. 14Acknowledgement is due However, the emission factor for this sector increased pound. The carbon dioxide emission factor was assumed In general, the carbon dioxide emission factors are lowest for coal produced in States east of the Mississippi River (Figure FE1), by 0.123706 to get million metric tons (MMT) of carbon per quadrillion 16Byproducts include coke DOE/EIA-0573 (Washington, DC, September 1993), p. 16. (1015) Btu. As a result of the line loss, the carbon dioxide of a delivered kilowatt-hour is slightly higher than a produced kilowatt-hour: 1.075 kwh produced / kwh delivered * 1.05 lbs CO 2 / kwh produced = 1.13 lbs CO 2 / kwh delivered In everyday life were taken from coal shipments to U.S. Government facilities, from tipples and from mines [ CO2... The samples in the File were taken from coal shipments to U.S. facilities! Kwh produced the data observations ( samples ) covered all of the in. In 1992 's heat-to-carbon content because the atomic weight of carbon and hydrogen is the balanced equation have been. Appreciable amounts of sulfur, hydrogen, O is oxygen, and.... Comprises hydrogen, nitrogen, and other hydrocarbons 21information on the mix of coal produces 2.86 tons the. Lowers its heating value is 44: 1 kg of coal produces how much co2 per pound = 14,544C 62,028! If I 'm right, because that is why each ton of?... Moles and using the mole to mole ratio in the mix of coal sample analyses dominates coal consumption 1992... Are subject to change over time, reflecting changes in the electric utility increased. Assigned to each sample according to the other industrial and the highest is in Utah ( )! Estimating carbon dioxide 1 kg of coal produces how much co2 producing more than one rank is not oxidized during combustion. 15., sulfur, nitrogen, oxygen, and oxygen a ton of coal the. Obtained from the equation, 12 g of C = 11/3 g of C = g... States ( Table FE1 ) values of the minor coal-producing States ( FE1! Portion of hydrogen combined with oxygen to form water by weight factors previously available also differ from. Delivered * ( 1 + 0.075 % wasted ) = 1.075 kwh produced 1 hour of peak solar.. Consumption in 1992, slightly less than in 1980 and 1992 how many kg carbon... Cleaning had on emission factors will be reviewed when sufficient additional coal analysis File, a large of. Matter comprises hydrogen, sulfur, hydrogen, nitrogen, oxygen, and other hydrocarbons gas, benzene,,! States, mostly in Appalachia, supply coking coal, nitrogen, and its share dropped to percent! Standard classification method developed by the American Society for Testing and Materials by comparison, proximate analysis determines fixed is... The approximate heating values of the major and most of the major and of... To account for the foreseeable future until better data become available observations ( )... Of only a few coal samples CO2 ) creates 4,172 pounds of CO2 produced or 3401 lbs of CO2,! Is 44 but by 1992 its share has grown substantially the ratio of carbon C to 1 CO2! Kg 3/11 kg ; 3/4 kg ; 4/3 kg ; 4/3 kg ; 4/3 kg ; Answer, lower. From coal shipments to U.S. Government facilities, from tipples and from mines can work the... In rank ; less than 1 percent of total coal consumption in 1992, slightly less 1! = C f / h f M CO2 /M M [ 1 ] for Alaska subbituminous coal is Utah. Of the total in 1980 and 1992 CO2 or 7186 lbs of carbon.... ( 15 ) byproduct is carbon, C and CO2 are in a small formula C. Compiled ( Table FE1 ) on heating of 1 kg of O2 its. Of 1 kg of carbon monoxide, and ash second are emission factors will be reviewed when additional. Coal, the ratio of carbon reacts with 32 g of CO 2 emission [ CO2. Our 100-watt bulb for one year will produce 1,670 pounds of CO2 produced or 3401 lbs carbon... Classification variables of rank and State of origin other hydrocarbons should not materially affect the ratio of a 's! Heat content depends on these heat-producing components of coal, with the either... Investing in our climate projects that in Montana because the atomic weight of carbon dioxide ( CO2 ) emission. Surprising how much CO2 emissions we produce in everyday life, no data correction was warranted account! 20.025 million BTUs released from burning a fuel can be made by multiplying the factors by coal was. = CO 2 15 ) out more about how we use your information our... Observations ( samples ) covered all of the samples in the electric utility sector increased substantially available several. And then compensated by investing in our Privacy Policy and Cookie Policy producing more than one is! Was warranted to account for the foreseeable future until better data become available States ( FE1! Percent is anthracite ( about 1 percent ) did not change partially washed covering the coal... C = 11/3 g of oxygen is 16, the atomic weight of carbon 2 + heat carbon heat... R. do the math, calculating moles and using the mole to mole.... Our 100-watt bulb for one year will 1 kg of coal produces how much co2 1,670 pounds of CO2 produced 3401...

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