THE EFFECT OF SORBENT SPECIFIC SURFACE AREA ON SO2 REMOVAL FROM IN-DUCT FLUE GAS TREATMENT
The processes treating sulfur oxides, specifically SO2, contained in combustion flue gas are generally classified into wet, dry and semi-dry type. The sorbent used for dry SO2 removal process is consists of calcium and sodium-based sorbents. As calcium-based sorbents, calcium carbonate(CaCO3), calcium oxide(CaO) and calcium hydroxide(Ca(OH)2) are used and as sodium-based sorbents, sodium bicarbonate(NaHCO3) and sodium carbonate(Na2CO3) are widely used. As an effort to develop dry SO2 removal process using direct injection of dry sorbent into flue gas duct(in-duct), reaction characteristics of SO2 and sorbents were analyzed by thermo gravimetric analyzer(TGA) and found out that the reactivity of sodium-based sorbents was higher than that of calcium-based sorbents. As a suitable sorbnent for dry SO2 removal from in-duct flue gas treatment, sodium-based sorbents were selected and the effect of specific surface area of sodium-based sorbent was analyzed using temperature programmed desorption(TPD) apparatus. The results showed that the reactivity of sodium-based sorbent and SO2 was increased as the specific surface area increase.
Sorbent SO2 Na2CO3 NaHCO3 Flue gas
Sungyou PARK Mina PARK Jusu HYUN Hyungkeun LEE Bal Raj DESHWAL Seunghyun MOON
Greenhouse Gas Research Center, Korea Institute of Energy Research, Daejeon, Korea
国际会议
第六届煤燃烧国际会议(The 6th International Symposium on Coal Combustion)
武汉
英文
347-351
2007-12-01（万方平台首次上网日期，不代表论文的发表时间）