기름응집법에 의한 무연탄 중의 회분 및 황 성분 제거

손태일; 김경희; 진경태; 이제근; Tae-Il Son; Kyoung-Hee Kim; Gyoung-Tae Jin; Jea-Keun Lee

HWAHAK KONGHAK, Vol.39, No.5, 624-628, October, 2001

Export Citation

기름응집법에 의한 무연탄 중의 회분 및 황 성분 제거

Rejection of Ash and Sulfur in Anthracite Coals using Oil Agglomeration

손태일, 김경희, 진경태 ¹, 이제근^†

부경대학교 환경시스템공학부, 부산 608-737
¹한국에너지기술연구원 에너지환경연구부, 대전 305-343

Tae-Il Son, Kyoung-Hee Kim, Gyoung-Tae Jin¹, and Jea-Keun Lee^†

Division of Environmental Systems Engineering, Pukyong National University, Pusan 608-737, Korea
¹Energy Environment Research Department, Korea Institute of Energy Research, Daejeon 305-343, Korea

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초록

회분식 교반 반응조에서 기름응집법을 이용하여 무연탄으로부터 회분과 황 제거 실험을 수행하였다. 가교용매로는 펜탄(pentane), 헵탄(heptane), 등유(kerosene)를 사용하였다. 운전 변수로는 기름/석탄비, 교반속도, tumbling 시간, 그리고 pH를 선정하였으며 모든 실험은 실온에서 수행하였다. 연구 결과 선택된 조업 변수는 고정탄소 회수율, 회분 제거율, 황 제거율에 영향을 미치는 것으로 나타났고, 고정탄소 회수율과 회분 제거율 그리고 황 제거율의 최대값은 각각 95%, 65%, 60% 이상으로 나타났으며, 상당량의 중금속이 제거되었다. 또한 최대 효율은 기름/석탄비 0.2, 그리고 pH 12에서 얻어졌다.

A study on the rejection of ash and pyritic sulfur in anthracite coals using oil agglomeration was carried out in a batch type agitation vessel. In this experiment, three kinds of bridging oils such as pentane, heptane, and kerosene were used. Operation variables were oil/coal ratio, agitation speed, tumbling time, and pH. All the experiments were performed at room temperature. It was shown that the parameters used significantly effected on the fixed carbon recovery, and rejection of ash, sulfur, and heavy metals. The maximum values of fixed carbon recovery and rejection of ash and sulfur were over 95%, 65% and 60%, respectively. The optimum operating conditions were obtained at the oil/coal ratio of 0.2 and pH 12.

Keywords:Oil Agglomeration;Bridging Oil;Carbon Recovery;Ash Rejection;Sulfur Rejection;Heavy Metal Rejection

[References]

Yoon RH, Luttrell GH, Venkatraman P, Proc. of 10th Korea-USA Joint Workshop on Coal Utilization Technology, Taejon, Korea, 17 (1994)
Gurses A, Doymus K, Bayrakoceken S, Fuel, 75, 1175 (1996)
Gurses A, Doymus K, Bayrakceken S, Fuel, 76(14), 1439 (1997)
Cebeci Y, Eroglu N, Fuel, 77(5), 419 (1998)
Garcia AB, Vega JMG, Martinez-Tarazone MR, Fuel, 74, 1692 (1995)
Jin GT, Lee IC, Lee HT, Kim JW, Yoon WL, Lee DK, Park SH, Whang YJ, Kim SK, KIER Report, KE-91034 (1991)
Oldshue JY, "Fluid Mixing Technology," McGraw-Hill, New York, NY (1983)
Richardson A, Sinha K, Gray MM, Lai R, "Selective Agglomeration of a Pittsburgh Seam Coal with Isooctane," Private Communication, PETC (1990)
Lai RW, Gray ML, Richardson AG, Chiang SH, Proc. of an Engineering Foundation Conference, AIME, CO, 120 (1989)

[Related Articles]

[1] Yoon RH, Luttrell GH, Venkatraman P, Proc. of 10th Korea-USA Joint Workshop on Coal Utilization Technology, Taejon, Korea, 17 (1994)

[2] Gurses A, Doymus K, Bayrakoceken S, Fuel, 75, 1175 (1996)

[3] Gurses A, Doymus K, Bayrakceken S, Fuel, 76(14), 1439 (1997)

[4] Cebeci Y, Eroglu N, Fuel, 77(5), 419 (1998)

[5] Garcia AB, Vega JMG, Martinez-Tarazone MR, Fuel, 74, 1692 (1995)

[6] Jin GT, Lee IC, Lee HT, Kim JW, Yoon WL, Lee DK, Park SH, Whang YJ, Kim SK, KIER Report, KE-91034 (1991)

[7] Oldshue JY, "Fluid Mixing Technology," McGraw-Hill, New York, NY (1983)

[8] Richardson A, Sinha K, Gray MM, Lai R, "Selective Agglomeration of a Pittsburgh Seam Coal with Isooctane," Private Communication, PETC (1990)

[9] Lai RW, Gray ML, Richardson AG, Chiang SH, Proc. of an Engineering Foundation Conference, AIME, CO, 120 (1989)