The Scientific World Journal / 2012 / Article / Tab 1 / Research Article
Exergetic Assessment for Resources Input and Environmental Emissions by Chinese Industry during 1997–2006 Table 1 Exergy coefficient of various resources.
Item Exergy coefficient Unit Source Fossil fuels Coal 22.16 PJ/Mton [38 ] Oil and oil product 44.32 PJ/Mton [38 ] Natural gas 4.13 PJ/108 cu·m [38 ] Minerals Iron ore (55% Fe) 0.46 PJ/Mton [38 ] Iron ore fine (70% Fe) 0.84 PJ/Mton [38 ] Sulphur iron ore (35% S) 9 PJ/Mton [38 ] Copper ore (0.65% Cu) 0.03 PJ/Mton [30 ] Lead ore (3.5% Pb) 0.02 PJ/Mton [30 ] Zinc ore (5.9% Zn) 0.05 PJ/Mton [30 ] Copper ore fine (23.8% Cu) 1.1 PJ/Mton [38 ] Alumina (63.7% Al) 2 PJ/Mton [38 ] Phosphorite (25% P2 O5 ) 0.1 PJ/Mton [38 ] Raw salt (NaCl) 0.2 PJ/Mton [38 ] Limestone 0.01 PJ/Mton [30 ] Metal scraps Steel (Fe) 6.8 PJ/Mton [38 ] Copper (Cu) 2.1 PJ/Mton [38 ] Aluminum (Al) 32.9 PJ/Mton [38 ] Forest products Wood 10 PJ/Mton [30 ] Bamboo 18.67 PJ/Mton [58 ] Turpentine 37.4 PJ/Mton Calculated by authors Oil-tea camellia seed 35.3 PJ/Mton Calculated by authors Tung oil 38.9 PJ/Mton Calculated by authors Agricultural products Sugarcane 5 PJ/Mton [38 ] Cotton 16.4 PJ/Mton [30 ] Hemp 16.35 PJ/Mton [30 ] Rapeseed 37 PJ/Mton [30 ] Beet 5 PJ/Mton [30 ] Soybean 3.9 PJ/Mton [30 ] Cocoon 4.5 PJ/Mton [30 ] Wool 3.7 PJ/Mton [30 ] Peanut 24.6 PJ/Mton [30 ] Sesame 23.4 PJ/Mton [30 ] Tubers 3.7 PJ/Mton [30 ] Bean 3.9 PJ/Mton [30 ] Rice 15.56 PJ/Mton [30 ] Wheat 15.4 PJ/Mton [30 ] Corn 8.6 PJ/Mton [30 ] Tobacco leaf 10.7 PJ/Mton [30 ] Pork 25 PJ/Mton [30 ] Beef 11.5 PJ/Mton [30 ] Mutton 16 PJ/Mton [30 ] Poultry 4.5 PJ/Mton [30 ] Milk 4.9 PJ/Mton [30 ] Egg 6.2 PJ/Mton [30 ] Fruit 1.9 PJ/Mton [30 ] Aquatic product 5.77 PJ/Mton [30 ] Straw 14.3 PJ/Mton [30 ] Other raw materials Pulp 17 PJ/Mton [30 ] Rubber 32.48 PJ/Mton [30 ] Synthetic rubber 45.53 PJ/Mton [59 ] Ethylenc glycol 19.34 PJ/Mton [60 ] Terephthalic acid 24.8 PJ/Mton [60 ] Polyethylene in primary forms 48.26 PJ/Mton [60 ] Polypropylene in primary forms 47.7 PJ/Mton [59 ] Polystyrene in primary forms 50.2 PJ/Mton [60 ] Polyvinyl chloride in primary forms 20.35 PJ/Mton [59 ]
Note: The exergy coefficients of water potential energy and nuclear energy were deduced from their product of electricity (0.36 PJ/108 kWh) with the transformation factor of 1.17 and 3.51, respectively [38 ]. Some chemical materials, nonmetallic mineral, and other raw material are not included due to their negligible exergy input or scarcity data.
