배연탈황기술의 반건식법중 Ca(OH)₂ 와 NaOH를 이용한 SO₂ 흡수에 관한 연구

서지정보

ㆍ발행기관 : 한국열환경공학회 ㆍ수록지정보 : 열환경공학 / 8권 / 3호
ㆍ저자명 : 김용우, 유인수, 이승재, 박동화, 문승현

목차

1. 서 론
2. 이론적 배경 및 실험방법
3. 실험결과
4. 고 찰
5. 결 론
6. 참고문헌

한국어 초록

영어 초록

Investigation of SO₂ absorption was performed with unreacted absorbent on bag filter which is usually installed
in downstream of semi-dry absorption process for flue gas desulfurization (FGD) to remove SO₂ in emission gas of
incineration. In this study, Ca(OH)₂ was used as an absorbent as well as NaOH. SO₂ absorption was examined with
varying temperature, flowrate and concentration of SO₂. NaOH addition to Ca(OH)₂ and effects of amount and
concentration of Ca(OH)₂ were also examined, Although SO₂ temperature did not affect starting detection time of
unabsorbed SO₂ on Ca(OH)₂, higher SO₂ temperature increased absorbed SO₂ amount. However, increase of SO₂
flowrate initially decreased starting detection time of unabsorbed SO₂ on Ca(OH)₂, but insignificantly influenced
absorbed SO₂ amount. Similarly to SO₂ flowrate, SO₂ concentration also initially decreased the starting detection
time. On the other hand, more amount of Ca(OH)₂ increased the unabsorbed SO₂ detection time and total
absorbed SO₂ amount. Higher Ca(OH)₂ concentration caused higher absorbed SO₂ amount. In especial, absorbed
SO₂ amount was soared at the use of 30 wt% Ca(OH)₂. The addition of NaOH to Ca(OH)₂ could lower absorbed
SO₂ amount at the corresponding concentration of Ca(OH)₂. Thus, this study would contribute to understanding
secondary SO₂ removal in semi-dry SO₂ absorption, and support effective selection of absorbent type and use of
proper amount of absorbent under the field operation conditions

참고 자료

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