Multi-pollutant control technology assessment: Circulating fluidised bed scrubber vs. spray dryer absorber

摘要

The converging US Environmental Protection Agency (EPA) rules for reducing mercury, metals, acid gases and organic compounds (Mercury and Air Toxics Standards or MATS), Regional Haze (RH) and SO_2, NO_x as well as particulates (Cross-State Air Pollution Rule or CSAPR) have ratcheted up the pressure on coal-fired generators to quickly reduce a variety of pollutants. The EPA estimates that CSAPR alone requires more than 3,000 units at more than 1,000 plants located in 28 states to reduce emissions that cross state lines and contribute to ground-level ozone and fine particle pollution. CSPAR Phase 1 compliance takes effect this year while MATS and RH reduction are ongoing programmes.