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제올라이트 흡착제 상에서 이산화탄소 회수를 위한 PSA 공정 연구 : 공정성능에 대한 세정유량의 영향 Effect of Rinse Rate on Process Performance
전종기,박영권,주국택 한국대기환경학회 2004 한국대기환경학회지 Vol.20 No.1
In order to investigate the performance of carbon dioxide PSA over zeolite adsorbent, the present study showed results of isotherm measurement, cyclic operation of 3-bed apparatus, and the corresponding numerical simulation. The experiment data of bed temperature, purity, recovery were matched well with that of numerical simulation. Purity of both gas and adsorbent phase increased rapidly with rinse rate but the degree of increase was retarded for large rinse rate. The total amount of adsorbed increased only 10% even if rinse rate was enlarged to 4 times. Optimal rinse rate was 7 Nm³/hr in this study. The heating rinse led to augments in recovery and productivity, possibly thanks to ease of desorption resulting from increased volumetric rinse rate and temperature rise in the column.
천연가스 개질 방식 중소형 고순도 수소제조 장치 개발 연구
서동주(Seo, Dong-Joo),주국택(Chue, Kuck-Tack),정운호(Jung, Un-Ho),박상호(Park, Sang-Ho),윤왕래(Yoon, Wang-Lai) 한국신재생에너지학회 2009 한국신재생에너지학회 학술대회논문집 Vol.2009 No.06
This work is mainly focused at developing the hydrogen production unit with the capacity of 20 Nm³/h of high purity hydrogen. At present steam reforming of natural gas is the preferable method to produce hydrogen at the point of production cost. The developed hydrogen production unit composed of natural gas reformer and pressure swing adsorption system. To improve the thermal efficiency of steam reforming reactor, the internal heat recuperating structure was adopted. The heat contained in reformed gas which comes out of the catalytic beds recovered by reaction feed stream. These features of design reduce the fuel consumption into burner and the heat duty of external heat exchangers, such as feed pre-heater and steam generator. The production rate of natural gas reformer was 41.7 Nm³/h as a dryreformate basis. The composition of PSA feed gas was H₂ 78.26%, CO₂ 18.49%, CO 1.43% and CH₄ 1.85%. The integrated production unit can produce 21.1 Nm³/h of high-purity hydrogen (99.997%). The hydrogen production efficiency of the developed unit was more than 58% as an LHV basis.