Modeling of Dry Injection Flue Gas Desulfurization

Pilot scale SO2 control by dry sodium bicarbonate injection and an electrostatic precipitator

“…Muzio & Sonnichsen [8] reported 29% in‐duct SO 2 removal by nahcolite upstream of a filter baghouse and Davis & Keener [5] measured 87% by sodium bicarbonate. Garding & Svedberg [9,10] reported data on SO 2 removal in the ductwork upstream of a pilot‐scale dry sodium injection FGD system that used a filter baghouse particle collector. They concluded that much of the SO 2 removal occurred while the injected sodium bicarbonate particles were suspended in the gas stream.…”

THE INFLUENCE OF CHROMIUM AND MOLYBDENUM ON THE PASSIVE FILMS FORMED ON HIGH Ni-Cr-Mo ALLOYS IN SIMULATED SO2 SCRUBBER PLANT

“…This compound may be formed along with Cr(OH) 3 . Molybdate was detected in all the passive films formed on the high Ni-Cr-Mo alloys.…”

“…This was achieved by enhancing the deportonation of Cr(OH) 3 alloys are formed in the cracks which decreases the size of the active sites available for chloride ion ingress.…”

Flue Gas Desulfurization Assessment by Modeling and Experimental Work of an Optimized Fixed-Bed NaHCO3 Reactor

“…The developed study proposes a numerical model in a pseudostationary state for dimensioning and for characterizing the reactor for the SO 2(g) elimination with NaHCO 3(s). Previous works using NaHCO 3 as a SO 2 sorbent normally describe steady state operation without providing validated guidelines on the equipment design and its hydrodynamic stability during operation; as examples, see the work from previous colleagues. ,, The model proposed in this article, on the other hand, considers the sorbent particles’ properties, the progressive degradation of the sorbent-bed while exposed to the gas, and the variations in the gas properties correspondingly. In response, it estimates the gas profiles within the reactor as a function of the operation time and its length, predicting the replacement time for the bed.…”