침액식 세정설비의 마이크로버블을 이용한 철강산업 공정의 산세조 발생 염화수소 제거
Hydrochloric Acid Gas Removal from Iron and Steel Industry Using Micro-bubbles of a Dip Injection Wet Scrubber System
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초록
대기오염물질인 염화수소의 배출 규제가 2ppm으로 강화됨에 따라 기존의 제철공장 습식세정 장치에 DIWS 시스템이도입되었다. 침액식 스크러버 시스템으로 제철공정에서 발생되는 염화수소를 처리하기 위한 파일럿 연구를 수행하였다. DIWS 시스템의 운전에 따른 응축수 pH는 연돌에서 6.0으로 증가하였다. 산세 Fume 정제설비의 평균 유입 염화수소는 13.3ppm, 평균 배출가스는 0.43ppm, 평균 제거율은 96.9%로 나타났다. TMS 장치로 장기간 측정한 데이터를비교하였을 때 DIWS 장치는 안정적인 제거율을 나타냈지만, TMS의 type별 데이터 불균일 현상이 관찰되었다.
Abstract
DIWS system was introduced to treat HCl gas from the scrubber of iron and steel industry according as the regulationof air quality is expected to be changed to 2ppm. pH of condensed water at stack was increased to 6.0. While13.3ppm of inflow HCl was introduced to DIWS system, the average exhaust gas was 0.43ppm with 96.9% ofremoval efficiency. Compared with HCl data of TMS, the stable removal efficiency was shown in DIWS system, butthe phenomenon of data hunting was also observed with different types of TMS apparatus.
참고문헌 (9)
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