SO2(g) + H2O(l)
SO2·H2O(aq) + CaCO3(s) CaSO3(s) + H2O(l) + CO2(g)
CaSO3(s) + 2 H2O(l) + 1/2 O2(g) CaSO4·2 H2O
It's interesting to note that although wet scrubbing has been used since the 1920's and 1930's in Great Britain's coal-fired power plants, scrubbing didn't catch on in the United States until the Clean Air Act Amendments of 1970 and 1977, for economic reasons.
Author: Fred Senese email@example.com
Copyright © 1997-2010 by Fred Senese
Comments & questions to firstname.lastname@example.org
Last Revised 08/17/15.URL: http://antoine.frostburg.edu/chem/senese/101/environmental/faq/print-so2-recycling.shtml