The number of regulated air pollutants, stringency of regulations and technology are all changing rapidly. No one would have predicted that direct sorbent injection would be a success twenty years ago. In the preceding decade, lots of research money had been spent in the U.S. on the assumption that 60 percent SO2 removal would be sufficient. When the regulators ultimately opted for 90 percent efficiency, dry sorbent injection (DSI) was taken off the table. Now, with new hydrated lime technology and the willingness of power plants to spend lots of money for sorbent to avoid capital investments, the outlook for DSI is very promising. Click Here For Complete News Release Text
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