Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Development of Adsorptive Permeation Membrane (APM) and Process for Separation of $CO_2$ from gas mixtures

이산화탄소 분리를 위한 흡착투과막 및 공정 개발

  • Received : 2013.08.20
  • Accepted : 2013.11.24
  • Published : 2013.12.31
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Abstract

Adsorptive permeation hollow fiber membrane (APM) has been developed for effectively separating $CO_2$ from gas mixture. Inside the APM, zeolite 13X particles were uniformly dispersed without covering their surfaces by a symmetric porous structure of polypropylene lattice. In this study, $CO_2/N_2$ mixture was used as a simulated gas mixture. Separation was achieved by adsorbing $CO_2$ on the zeolite particles in the APM and then permeating $N_2$ into permeate side in passing all the feed gas through the APM. Adsorptive permeation tests were carried out with a set of APM modules, and the adsorptive permeation performances of the modules were analyzed from the test results. After saturation of the adsorbent with $CO_2$, the APM was regenerated by desorption of $CO_2$ from it through vacuuming both inside of outside of the APM hollow fiber, and the regeneration process of the APM by vacuuming was discussed in terms of regeneration efficiency and energy consumption.

이산화탄소의 효과적인 분리 및 포집을 위해서 등방성 다공성 구조의 폴리프로필렌(pp) 격자의 내부에 제올라이트 입자들이 표면 덮임 없이 균일하게 분포되어 있는 흡착투과중공사막(APM: adsorptive permeation hollow fiber membrane)을 개발하였다. 본 연구에서는 이산화탄소/질소 혼합물을 모사 기체혼합물로 사용하였는데, 공급되는 기체혼합물 모두가 APM을 투과하면서 이산화탄소는 APM 내 분포되어 있는 흡착제에 흡착되고 질소는 투과하여 배출된다. APM이 장착된 모듈을 제조하여 이에 대한 흡착투과실험을 수행하여 흡착투과 성능을 분석하였고 또한 포화 흡착된 APM을 진공압에서 탈착 재생하여 그 결과를 재생효율과 에너지소모 관점에서 고찰하였다.

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References

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