H2O2 Leaching 공정을 이용한 저 유황탄의 연소 전 탈황Desulfurization Characteristics of Low Sulfur Coals before Combustion using H2O2 Leaching Process
- Other Titles
- Desulfurization Characteristics of Low Sulfur Coals before Combustion using H2O2 Leaching Process
- Authors
- 남영우; 박계성
- Issue Date
- Dec-2004
- Publisher
- 한국화학공학회
- Keywords
- Low Sulfur Coal; Before-combustion; Desulfurization; H2O2 Leaching
- Citation
- Korean Chemical Engineering Research(HWAHAK KONGHAK), v.42, no.6, pp.754 - 761
- Journal Title
- Korean Chemical Engineering Research(HWAHAK KONGHAK)
- Volume
- 42
- Number
- 6
- Start Page
- 754
- End Page
- 761
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/20059
- ISSN
- 0304-128X
- Abstract
- This research aimed to elucidate desulfurization characteristics of low sulfur coals (two imported bituminous
coals and two domestic anthracite coals) before combustion and to optimize desulfurization conditions in a leaching
process using hydrogen peroxide. The optimum condition for the leaching process was obtained when the
experiments were carried out for 60 minutes at 90 oC using 20% H2O2. The sulfur removal efficiency for the anthracite
and bituminous coals were 55-80% and 58-67%, respectively. The effect of particle size on desulfurization efficiencies
was negligible within experimental error. Heating values of treated bituminous coals slightly decreased, while those for
anthracite coals slightly increased. The ash removal efficiency for bituminous and anthracite coals were 11-22% and 9-
26%, respectively. It is thought that some of chars processed by leaching process would meet the current SO2 emission
standard without flue gas desulfurization process.
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