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4. The discussion of electricity costs in section 8.6 stated that coal costs of $1.00 - $1.50 per million BTU are equivalent to about $24-$36 per ton, and that natural gas costs of $2.00 - $5.00 per million BTU correspond, on an equivalent energy basis, to $12-$30 per barrel of oil. Use the data on fuel properties in table 8.1 to confirm these equivalencies.

4. The discussion of electricity costs in section 8.6 stated that coal costs of $1.00 - $1.50 per million BTU are equivalent to about $24-$36 per ton, and that natural gas costs of $2.00 - $5.00 per million BTU correspond, on an equivalent energy basis, to $12-$30 per barrel of oil. Use the data on fuel properties in table 8.1 to confirm these equivalencies.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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4. The discussion of electricity costs in section 8.6 stated that coal costs of $1.00 - $1.50 per million BTU are equivalent to about $24-$36 per ton, and that natural gas costs of $2.00 - $5.00 per million BTU correspond, on an equivalent energy basis, to $12-$30 per barrel of oil. Use the data on fuel properties in table 8.1 to confirm these equivalencies.
Transcribed Image Text:4. The discussion of electricity costs in section 8.6 stated that coal costs of $1.00 - $1.50 per million BTU are equivalent to about $24-$36 per ton, and that natural gas costs of $2.00 - $5.00 per million BTU correspond, on an equivalent energy basis, to $12-$30 per barrel of oil. Use the data on fuel properties in table 8.1 to confirm these equivalencies.
Table 8.1 Hydrogen-to-Carbon Ratio and Heating (Calorific) Value of Selected Fossil and Process-Derived Fuels Fuel Type H/C, Atomic Gross Heating Value (kcal/g) Gaseous High-Btu Methane 4.0 3.5-4.0 13.3 11.7-11.9 Natural gas Intermediate-Btu Hydrogen 33.9 00 Coke oven gas 4.9 9.6 Water gas (H₂-CO) 2.0 4.3 Low-Btu Producer gas (N₁-diluted; from bituminous coal) 1.2 1.2 Liquid Methanol 4.0 5.3 Gasoline 2.0-2.2 11.2-11.4 No. 2 fuel oil 1.7-1.9 10.7-11.0 No. 6 fuel oil 1.3-1.6 10.0-10.5 Crude shale oil 1.6 10.3-10.4 Bitumen (Athabasca tar sands) 1.4-1.5 9.8-10 Solid Kerogen (Green River oil shale) 1.5. 10 Lignite 0.8 3.9-5.4 Subbituminous coal 0.8 5.5 0.5-0.9 6.7-8.8 Bituminous coal Anthracite 0.3 8.4 Low-temperature coke 0.4 8.2 High-temperature coke 0.06 8.0 Source: Howard (1981) and references cited therein. * Mineral-matter-free C and total organic H (i.e., including H bound with O, S, and N). Coals: moist, free of mineral matter; cokes: dry, ash-free; 1 kcal/g = 1,800 Btu/lb. *Gross heating value is equivalent to the higher heating value of the fuel (HHV).
Transcribed Image Text:Table 8.1 Hydrogen-to-Carbon Ratio and Heating (Calorific) Value of Selected Fossil and Process-Derived Fuels Fuel Type H/C, Atomic Gross Heating Value (kcal/g) Gaseous High-Btu Methane 4.0 3.5-4.0 13.3 11.7-11.9 Natural gas Intermediate-Btu Hydrogen 33.9 00 Coke oven gas 4.9 9.6 Water gas (H₂-CO) 2.0 4.3 Low-Btu Producer gas (N₁-diluted; from bituminous coal) 1.2 1.2 Liquid Methanol 4.0 5.3 Gasoline 2.0-2.2 11.2-11.4 No. 2 fuel oil 1.7-1.9 10.7-11.0 No. 6 fuel oil 1.3-1.6 10.0-10.5 Crude shale oil 1.6 10.3-10.4 Bitumen (Athabasca tar sands) 1.4-1.5 9.8-10 Solid Kerogen (Green River oil shale) 1.5. 10 Lignite 0.8 3.9-5.4 Subbituminous coal 0.8 5.5 0.5-0.9 6.7-8.8 Bituminous coal Anthracite 0.3 8.4 Low-temperature coke 0.4 8.2 High-temperature coke 0.06 8.0 Source: Howard (1981) and references cited therein. * Mineral-matter-free C and total organic H (i.e., including H bound with O, S, and N). Coals: moist, free of mineral matter; cokes: dry, ash-free; 1 kcal/g = 1,800 Btu/lb. *Gross heating value is equivalent to the higher heating value of the fuel (HHV).
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