78

Source: Adapted from Wark et al. [6] and Davis [7].

Source: Adapted from Wark et al. [6] and Davis [7].

Fuel switching to lower sulfur coals is chosen by many power generators to achieve emissions compliance. In the United States, the replacement of high-sulfur Eastern or Midwestern bituminous coals with lower sulfur Appalachian region bituminous coals or Powder River Basin coals is a control option that is widely exercised, as illustrated in Chapter 2 (Past, Present,

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