Clean Technology (청정기술)
- Volume 7 Issue 2
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- Pages.127-132
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- 2001
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- 1598-9712(pISSN)
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- 2288-0690(eISSN)
Effects of activated carbon packing length in PSA process for production of high-purity hydrogen
고순도 수소제조를 위한 PSA 공정에서 활성탄 충전길이 효과
- Paik, Eun-gyu (Dept. of Chem. Eng., Hongik University) ;
- Choi, Min-Ho (Dept. of Chem. Eng., Hongik University) ;
- Suh, Sung-Sup (Dept. of Chem. Eng., Hongik University)
- Published : 2001.06.01
Abstract
The effects of activated-carbon (AC) packing length on the Pressure Swing Adsorption (PSA) performance was investigated for the hydrogen separation from the multicomponent mixture gas. Linear driving force model was used to describe mass transfer between two phase and coupled Langmuir isotherm was used for each component as a nonlinear adsorption isotherm. When two adsorbents with a different adsorption capacity were packed consecutively in one bed, it is very important to determine the packing ratio of zeolite to activated carbon affecting the purity and recovery of the product. The activated carbon packing length in adsorption tower of 120 cm was determinated by the ending point of
수소 등 다성분 혼합가스로부터 고순도의 수소를 얻기 위한 PSA 조업에 있어서 흡착탑 내 활성탄 층 충전길이의 효과를 연구하였다. 기-고상 간 물질전달은 LDF 식을 사용하였고 각 조성물질의 비선형 흡착등온선으로 변형 Langmuir 식을 사용하였다. 각각 다른 흡착성능을 가진 활성탄과 제올라이트 2개의 흡착제를 한 개의 흡착탑 내에 연속 충전시킨 결과 제품의 순도와 회수율 면에서 흡착제의 충전길이 비가 매우 중요하였다. 120 cm인 흡착탑 내 최적의 활성탄 층 길이는