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RISS 인기검색어
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- 저자 : 김량균(RyangGyoon Kim) (검색결과 3 건)
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입자온도의 직접적인 측정법을 이용한 석탄촤 고압 CO2 가스화 반응률에 관한 연구
이동방(Dongfang Li),김량균(Ryanggyoon Kim),송주헌(Juhun Song),전충환(Chunghwan Jeon) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.10
Gasification kinetics of coal char of coal Wira with CO2 at elevated pressure was investigated with a Pressurized Wire Heating Reactor(PWHR). An experimental method with the capacity to heat the coal char particle and measure its temperature directly (as with a thermocouple) was developed. The effects of gasification temperature(1100 ?. 1400oC), partial pressure of carbon dioxide(0.2 ?. 0.8), and total pressure(10 ?. 30atm) on gasification rate of the coal char with CO2 were determined. The modified nth-order reaction models were then employed to analyze the reaction kinetics.
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통기도 실험에 의한 점결탄 혼탄시 연화용융 및 팽창 특성 분석
황찬원(ChanWon Hwang),오택림(ZeLin Wu),류광일(KwangIl Ryu),김량균(RyangGyoon Kim),전충환(ChungHwan Jeon) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
The experiment was designed to study the coking coal swelling characteristics as a function of particle size distribution and density under thermal shock. During the cokes making process, coking coal pass through the fluidity zone at specific temperature. Cokes characteristics can be caused by physicochemical properties at fluidity zone. Three kinds of coking coal was used for experiment and each coal has different swelling characteristics. Softening and swelling characteristics was analyzed through the permeability test. Permeability test was performed by measuring the differential pressure of nitrogen. Finally, It compared blending effect by the swelling characteristics. Three kinds of coking coal was blended A with D and D with G in specific ratio. Coal D is standard of comparison. As a result, D:A blended coking coal has generally low permeability characteristics (1.0~1.2bar). Because It strongly combined with each particle after mesophase zone. This characteristic derives from FSI and volatile matter contents. And D:G blended coking coal test results seem to decrease with coal Gcontents. It means, coal G has not sufficient swelling characteristics.
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