| OCR Text |
Show SV value (h - 1) = Volu~e of gas t~eate~rnm~ Quantity of catalyst (m 3 ) 3) Test results Figs. 1-33 - 1-37 show the test results of A Plant and B Plant. Although the results differ depending on the properties of the flue gas, the following may be said of catalytic denitrification based on the results of the test conducted: (8) Temperature efficiency In the range of temperature used in the refuse incinerator (installed in the downstream of E.S.P outlet), high temperature -7 higher denitrification efficiency (b) Effects on catalyst due to ioxiousness ® Flue gas temperature above 535°F (2801C) -7 Lowering in efficiency was extremely slow. No effects werp, seen during the operation of approximately 1]0 U8YS. ® 465 - 500°F -----7 SI ight lower ing in efr ic iency was seen due mainly to noxiousnpss of alkali (Na, K). © below 465°F -----7 Lowering in efficiency was seen mainly due to acidity of ammonium sulfate. (N1I 4 11S04 ) (c) Deterioration speed of efficiency ® < @ « © above 1 3 |
