Sorbent/urea slurry injection for simultaneous SO₂/NO_x removal

Abstract

The combination of sorbent injection and selective noncatalytic reduction (SNCR)

Effectiveness of calcium magnesium acetate as dual SO2 ‐NOx emission Control Agent

“…SO, reacts with CuO to form CuSO, and NO, can be reduced by ammonia with CuO acting as a catalyst. Other combined processes include adding limestone or dolomite to fuel in a burner with combustion modifications to lower NO, (Steward et al, 1992;Wang et al, 19911, Na-or Ca-based sorbent injection and SNCR (Gullett et al, 1992;Darmstaedler, 1990), or combustion modification with low-NO, burners, dry-injection of slaked lime for SO, capture and dry injection of sodium bicarbonate for further SO, and NO, reduction (Helfritch et al, 1992). Makansi (1990) has compiled a succinct review of these and other systems.…”

Experimental Study on the Catalytic Oxidation of SO₂ by V₂O₅

“…Especially, a plenty of gypsum by the normal measure of fluxline-gypsum to absorb SO 2 can't be disposed and exploited [2]. The flue gas catalytic oxidation reduction process (SNOX) firstly uses ammonia as reduction agent, under the action of catalyst, reduces the NO x to N 2 , then transfer SO 2 to SO 3 by catalystic oxidation, and absorbs SO 3 by oil of vitriol [3,4]. This process has the advantages of desulphuration and denitration at the same time and avoiding to producting too much gypsum [5].…”