|
| TABLE 7 | ||||||||||||||||||||||
| CLINKER PRODUCED AND FUEL CONSUMED BY THE CEMENT INDUSTRY IN THE UNITED STATES,� BY PROCESS1 | ||||||||||||||||||||||
| Fuel consumed | Waste fuel | |||||||||||||||||||||
| Clinker produced2 | Petroleum | Natural gas | Tires | Solid | ||||||||||||||||||
| Quantity | Coal3 | coke | Oil4 | (thousand | (thousand | (thousand | Liquid | |||||||||||||||
| Active | (thousand | Percentage | (thousand | (thousand | (thousand | cubic | metric | metric | (thousand | |||||||||||||
| Kiln process | plants | metric tons) | of total | metric tons) | metric tons) | liters) | meters) | tons) | tons) | liters) | ||||||||||||
| 2004: | ||||||||||||||||||||||
| Wet | 24 | 14,165 | 16.3 | 1,730 | 584 | 29,300 | 36,700 | 61 | 38 | 771,000 | ||||||||||||
| Dry | 78 | 5 | 67,160 | 5 | 77.5 | 5 | 7,230 | 5 | 1,600 | 74,600 | 5 | 299,000 | 312 | 71 | 186,000 | 5 | ||||||
| Both6 | 5 | 5,333 | 6.2 | 700 | 77 | 691 | 60,000 | 5 | 16 | 40,400 | ||||||||||||
| Total7 | 107 | 5 | 86,658 | 5 | 100.0 | 5 | 9,660 | 5 | 2,260 | 105,000 | 5 | 396,000 | 377 | 125 | 997,000 | 5 | ||||||
| 2005: | ||||||||||||||||||||||
| Wet | 23 | 11,807 | 13.5 | 1,480 | 586 | 29,300 | 22,800 | 85 | 9 | 479,000 | ||||||||||||
| Dry | 79 | 70,809 | 81.0 | 7,340 | 1,740 | 58,000 | 310,000 | 315 | 110 | 894,000 | ||||||||||||
| Both6 | 4 | 4,790 | 5.5 | 679 | 21 | --� | 62,000 | 5 | 10 | 93,300 | ||||||||||||
| Total7 | 106 | 87,405 | 100.0 | 9,490 | 2,350 | 87,300 | 395,000 | 405 | 130 | 1,470,000 | ||||||||||||
| -- Zero. | ||||||||||||||||||||||
| 1All fuel data have been rounded to three significant digits. | ||||||||||||||||||||||
| 2Clinker data were all reported; although unrounded, data are thought to be accurate to no more than three significant digits. | ||||||||||||||||||||||
| 3All reported to be bituminous. | ||||||||||||||||||||||
| 4Distillate and residual fuel oils; excludes used oils included under liquid wastes. | ||||||||||||||||||||||
| 5Revised to exclude Puerto Rico. | ||||||||||||||||||||||
| 6Fuel quantities may not represent normal operating conditions owing to the inclusion of plants that were converted from wet to dry technology during | ||||||||||||||||||||||
| the year. | ||||||||||||||||||||||
| 7Data may not add to totals shown because of independent rounding. | ||||||||||||||||||||||
Source: United States Geological Survey Mineral Resources Program