(Solution Document) paraphrase: (write this in your own words). The wellman-lord process can achieve


paraphrase: (write this in your own words).

The wellman-lord process can achieve so2 removal efficiencies of greater that 90 percent. Operating commercial installation has demonstrated that the process can consistently maintain so2 emissions below 200 parts per million volume (ppmv). If emissions regulations permit, however, the process can be ?turned down? in the interest of lower utility costs. An additionally consideration is disposal of the sodium sulfate/sodium sulfite cake from the purge treatment operation. The primary source of the sodium sulfate is the oxidation of sodium sulfite in the absorber, as discussed under design considerations, Based on an empirical oxidation rate, a wellman-lord process applied to a new 500-MW power unite burning 3.5 percent sulfur coal would produce 1,240kg/h (2,735 lb/h) of mixed anhydrous sodium sulfite (70 percent) and sodium sulfite (30 percent). This represents about 8.7 Gg (9,600 tons) of mixed salts per year if the plant operates 7,000 hours at 100 percent capacity.

 







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