• Title/Summary/Keyword: Pilot Plant Scale

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Investigations on High Temperature Filtration System for Particle Removal using Ceramic Candle Filter in the Pilot Scale Vitrification Plant (유리화 공정에서의 세라믹 캔들 필터를 이용한 분진 제거목적의 고온 여과 시스템에 관한 연구)

  • 류보현;박승철;황태원;하종현
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2003.05b
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    • pp.391-392
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    • 2003
  • 한전 원자력 환경기술원에서는 중ㆍ저준위 방사성폐기물 유리화 기술의 상용화 가능성을 입증하기 위한 유리화 실증설비를 건설하여 시험 중에 있으며 이 유리화 기술은 유도 가열식 저온로(Cold Crucible Melter, CCM)에 폐기물을 투입하는 기술로서 폐기물의 부피 축소 효과와 더불어 최종 고화물로 생성되는 폐기물의 침출율이 매우 낮은 장점을 지닌다. 이와 같은 유리화 공정은 기존의 소각처리에서와 같이 폐기물의 열적 산화과정에 의해 유해오염가스와 입자성 물질이 발생된다. 따라서 이를 처리하기 위해배기체 처리공정(Off Gas Treatment System, OGTS)을 설치하여 환경 배출기준(SO$_2$300ppm, NO$_2$ 200ppm, CO 600ppm, HCI 50ppm, 분진 100mg/Nm$^3$ 등)을 만족하도록 하였고 특히 입자성 물질은 후단 OGTS나 배관내 침적으로 인한 방사성 오염을 막기 위해 CCM 후단에서 효율적으로 제거되어야만 한다. (중략)

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Characteristics of $H_2$/CO ratio control of syngas by waste gasification (폐기물 가스화 합성가스의 $H_2$/CO 생산비 제어 특성)

  • Gu, Jae-Hoi;Kim, Su-Hyun;Kim, Mun-Hyun;Choi, Jong-Hyea;Heo, Su-Jung;Yoon, Ki-Soo;Kim, Soung-Hyoun
    • 한국신재생에너지학회:학술대회논문집
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    • 2008.05a
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    • pp.475-478
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    • 2008
  • The 3 ton/day-scale pilot plant consists of waste press, feed channel, fixed bed type gasification & melting furnace, quench scrubber, syngas refinery facility and flare stack. $H_2$/CO ratio of gasification syngas using the solid waste and sludge in the 3 ton/day gasifier showed about 1. Gasification melting furnace was operated $1,300{\sim}1,600^{\circ}C$. $H_2$/CO ration control system was obtained $H_2$/CO ratio 2 and 3.

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An Application of High Strength Concrete with 800kg/c $m^2$ to High-Rise Building (초고층 빌딩 적용을 위한 설계강도 800kg/c $m^2$ 고강도 콘크리트의 개발)

  • 김규동;이승훈;김명식;손유신;김한준
    • Proceedings of the Korea Concrete Institute Conference
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    • 2002.05a
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    • pp.55-60
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    • 2002
  • The columns and The belt wall of Tower Palace III were desined as 800kg/c $m^2$ ultra-high strength concrete. The concrete should meet or exceed the requirements of slump of 23cm, $\sigma$$_{18H}$ of 100kg/c $m^2$, $\sigma$$_{91th}$ of, 800kg/c $m^2$. The concrete mixings with 4 different domestic Silica fumes were investigated. Laboratory tests, the pilot productions of batcher plant and the full-scale mock up tests were performed. As results of site application, all test results are satisfied with the requirements of columns and belt wall.l.

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Studies on syngas production and gas engine generation of soild waste gasification in the fixed bed gasification melting furnace (고정층 가스화 용융로에서의 고상폐기물 가스화 합성가스 생산 및 가스엔진 발전 연구)

  • Gu, Jae-Hoi;Kim, Su-Hyun;Yoo, Young-Don;Yun, Yong-Seung;Lee, Hyup-Hee;Nam, Sang-Ik;Yoon, Jae-Kwan
    • 한국신재생에너지학회:학술대회논문집
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    • 2007.06a
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    • pp.717-720
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    • 2007
  • The 3 ton/day-scale pilot plant consists of compressor, feed channel, fixed bed type gasification & melting furnace, quench scrubber, demister, flare stack and gas engine. Syngas composition of gasification using the 35.50(waste I), 4.34%(wasteII) moisture-containing solid waste showed waste I CO 25-35%, 20-40% hydrogen, waste II 25-35%, 20-30% hydrogen. Gasification melting furnace was operated $1,500{\sim}1,600^{\cdot}C$. Gas engine was generated $35{\sim}40$ kW as waste gasification syngas.

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Practical Use of Self Compacting Concrete to be filled inside the Steel Tube Columns (무다짐 콘크리트를 이용한 높은 40m CFT 기둥의 시공)

  • 김규동;김한준;손유신;이승훈
    • Proceedings of the Korea Concrete Institute Conference
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    • 2003.05a
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    • pp.1023-1028
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    • 2003
  • The structure of Tower Palace III Sports Center building was designed as concrete Filled Steel Tube(CFT) Column and the filled-in concrete was designed as high compressive strength of 500kgf/$m_2$. The self compacting concrete(SCC, non-vibrating concrete) with 65$\pm$5cm flow must be applied to this case for filling the CFT by injecting the concrete from the column bottom. Laboratory tests and pilot productions of batcher plant were performed for optimum mix design and the full scale Mock-Up test was performed to check the appicability of the construction method. As a result, we observed that good quality SCC and the pressure change of concrete pump normally used domestically. Based on these results, we have constructed 20-40m height CFT columns successfully.

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Atmospheric and Pressurized Operation of a 25 kW MCFC Stack (25 kW급 용융 탄산염 연료 전지 스택의 상압 및 가압 운전)

  • Koh, Joob-Ho;Seo, Hai-Kung;Lim, Hee-Chun
    • Proceedings of the KSME Conference
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    • 2000.04b
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    • pp.264-269
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    • 2000
  • As a part of the ongoing effort towards commercial application of high-temperature fuel cell power generation systems, we have recently built a pilot-scale molten carbonate fuel cell power plant and tested it. The stack test system is composed of diverse peripheral units such as reformer, pre-heater, water purifier, electrical loader, gas supplier, and recycling systems. The stack itself was made of 40cells of $6000cm^2$ area each. The stack showed an output higher than 25kW power and a reliable performance at atmospheric operation. A pressurized performance was also tested, and it turned out the cell performance increased though a few cells have shown a symptom of gas crossover. The pressurized operation characteristics could be analyzed with numerical computation results of a stack model.

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Extraction Conditions of Barley Tea in Cylindrical Packed Column (원통형 충전 탑에서 보리차의 추출조건)

  • 박상기;전재근
    • The Korean Journal of Food And Nutrition
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    • v.4 no.2
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    • pp.141-148
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    • 1991
  • In order to Investigate the extraction mechanism of barley tea in cylindrical packed column, pilot plant scale packed column was designed and constructed. And extraction conditions for steady flow in the packed column were searched. The main results of this study are as follows ; 1. Circulation of the stock barley tea before the extraction running was indispensable In consideration of inequality, gas, particles existed in packed bed. Solid-liquid equilibrium was initially maintained after the circulation. 2. Flow direction of solvent must be up-flow for maintaining the constant bed height and flow rate during the extraction. Paessure drop in pucked bed was similar to decrease ratio of extract concentration. 3. The porosity of packed bed was in the range of 0.24∼0.36 according to the particle sloe. And it was decreased as the particle size became smaller.

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Water Repelling Technology for Fruit bagging paper (과대지용 emulsion 발수제 및 처리기술)

  • Yoon, Kyoung-Dong;Byeon, Jong-Sang;Kim, Dae-Keun;Eom, Tae-Jin
    • Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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    • 2006.11a
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    • pp.207-212
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    • 2006
  • The development of practical utilization way of water repelling technology for manufacturing of fruiting bag was main purpose of this study. The water repelling technology was developed by wax emulsion coating The wax emulsion was manufactured at Chungsan chemical(Co) on pilot scale. The coating paper was tried in plant coater of Agro(Co). The water repellency of wax emulsion coated paper was good as fruit bagging paper.

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Construction Technology of High Strength Concrete Designed 800kg/$cm^2$ for High-Rise Building (초고층 건물용 800kg/$cm^2$의 초고강도콘크리트 시공기술)

  • 김규동;이승훈;김규용;손유신;김한준
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2003.05a
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    • pp.49.2-53
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    • 2003
  • This paper reports the application of high strength concrete designed as 800kg/$cm^2$ on the columns and belt wall of Tower Palace III. The concrete should meet or exceed the requirements of slump of 23cm, ${\sigma}$18H of 100kg/$cm^2$, ${\sigma}$91th of 800kg/$cm^2$. The concrete mixings with 4 different domestic Silica fumes were investigated. Laboratory tests, the pilot productions of batcher plant and the full-scale mock up tests were performed As results of site application, all test results are satisfied with the requirements of columns and belt wall.

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Simulated Moving Bed [SMB] (모사 이동층 크로마토그래피)

  • Lee Chong-Ho;Koo Yoon-Mo
    • KSBB Journal
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    • v.20 no.3
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    • pp.192-196
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    • 2005
  • Chromatography has been a method of choice in the separation of complex biological mixtures for the analytical purpose in particular for the last half of century. In current years, chromatographic method extends its use to the preparative separation where the productivity per resin amount and solvent use become a matter of concern. Recently, simulated moving bed (SMB) method which claims high separation efficiency of the ideal counter-current moving bed chromatography has become a workhorse of preparative separation. SMB technology was developed in the early 1960s for large-scale hydrocarbon separation by UOP and approximately 120 Sorbex units have been licensed to date. Recently, SMB separation technology has been successfully extended from hydrocarbons and sugars to fine chemicals, particularly biochemicals, from laboratory to pilot to production plant. In this paper, the current status of SMB and its modifications were reviewed.