Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Development of On-Line Measurement System for Adsorption Process

흡착공정용 온라인 측정시스템의 개발

  • Kim, Byoung Chul (Department of Chemical Engineering, Dong-A University) ;
  • Lee, Ki Sung (Department of Chemical Engineering, Dong-A University) ;
  • Yamamoto, Takuji (National Institute of Advanced Industrial Science and Technology) ;
  • Kim, Young Han (Department of Chemical Engineering, Dong-A University)
  • Received : 2009.02.18
  • Accepted : 2009.04.02
  • Published : 2009.06.30
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Abstract

A simple measuring device is proposed, and its performance is examined in an adsorption process separating a gas mixture. The sensor is made of a quartz crystal resonator and solid adsorbent to detect the target component. Micro-particle carbon cryogel(MCC) is utilized as the adsorbent, and the gas mixture of air and i-butane are separated in a column containing bamboo activated carbon. Two devices are placed at the inlet and outlet of the column. The measurements are compared with those of GC outcome to prove the measurements are effective. The experimentally proved system is simple and capable to be implemented in an in-line system with on-line measurement.

간단한 기체농도 측정장치를 제안하여, 혼합기체를 분리하는 흡착공정에서 성능을 실험적으로 조사하였다. 측정센서는 수정진동자의 전극에 고체의 흡착제를 도포하여 유효성분을 선택적으로 분리하게 하여 농도를 측정하였다. 센서용 흡착제는 마이크로 입자의 카본 크라이오젤(Micro-Particle Carbon(MCC))을 사용하였고, 공기와 i-부탄의 혼합기체를 대상으로 대나무 활성탄을 채운 칼럼에서 분리하는 공정을 사용하였다. 칼럼의 입구와 출구에 측정시스템을 각각 장치하고 i-부탄의 농도를 측정하였다. 입구와 출구의 실제농도를 GC로 측정한 결과와 측정한 수정진동자의 공진주파수를 비교하여 제안한 측정시스템이 유용하게 농도를 측정할 수 있음을 보였다. 실험을 통하여 제안하는 시스템이 비교적 간단한 장치로, 실시간 인라인 측정이 가능함을 입증하여 실제공정에 유용하게 활용할 수 있음을 보였다.

Keywords

Acknowledgement

Supported by : 한국학술진흥재단

References

  1. Yang, S.-I., Park, J.-Y., Jang, S.-C., Choi, D.-Y., Kim, S.-H. and Choi, D.-K., 'Experiment and Simulation of 4-bed PSA for Hydrogen Separation from Multi-Component Mixture Gases,' Korean Chem. Eng. Res., 46, 414-422(2008)
  2. Gu, X. H., Dong, J., Nenoffb, T. M. and Ozokwelu, D. E., "Separation of p-Xylene from Multicomponent Vapor Mixtures Using Tubular MFI Zeolite Memmbranes," J. Membr. Sci.. 280, 624-633(2006) https://doi.org/10.1016/j.memsci.2006.02.020
  3. Huang, H., Haghighat, F. and Blondeau, P., "Volatile Organic Compound (VOC) Adsorption on Material: Influence of Gas Phase Concentration, Relative Humidity and VOC Type," Indoor Air, 16, 236-247(2006) https://doi.org/10.1111/j.1600-0668.2005.00421.x
  4. Richardson, T. H., Brook, R. A., Davis, F. and Hunter, C. A., "The $NO_2$ Gas Sensing Properties of Calixarene/Porphyrin Mixed LB Films," Colloids Surf. A-Phys. Chem. Eng. Aspects, 284-285, 320-325(2006) https://doi.org/10.1016/j.colsurfa.2005.11.076
  5. Choudhury, S., Betty, C. A. and Girija, K.G., "On the Preparation of Ultrathin Tin Dioxide by Langmuir-Blodgett Films Deposition," Thin Solid Films, 517, 923-928(2008) https://doi.org/10.1016/j.tsf.2008.08.183
  6. Korotcenkov, G., Blinov, I., Ivanov, M. and Stetter, J. R., "Ozone Sensors on the Base of SnO2 Films Deposited by Spray Pyrolysis," Sens. Actuators B, 120, 679-686(2007) https://doi.org/10.1016/j.snb.2006.03.029
  7. Lee, S. R., Lee, G. G., Kim, J. S. and Kang, S. J. L., "A Novel Process for Fabrication of SnO2-Based Thick Film Gas Sensors," Sens. Actuators B, 123, 331-335(2007) https://doi.org/10.1016/j.snb.2006.08.029
  8. Kim, B. C. and Kim, Y. H., "Sensitivity Determination of a Quartz Crystal Resonator for Practical Materials," Japanese J. Appl. Phys., 46, 7490-7495(2007) https://doi.org/10.1143/JJAP.46.7490
  9. Kim, J. M., Chang, S. M., Suda, Y. and Muramatsu, H., "Stability Study of Carbon Graphite Covered Quartz Crystal," Sens. Actuators A: Phys. 72, 140-147(1999) https://doi.org/10.1016/S0924-4247(98)00232-5
  10. Kim, Y. H. and Choi, K. J., "Fabrication and Application of an Activated Carbon-Coated Quartz Crystal Sensor," Sens. Actuators B, 87, 196-200(2002) https://doi.org/10.1016/S0925-4005(02)00239-3
  11. Yamamoto, T., Ohmori, T. and Kim, Y. H., 'Preparation and Characterization of Monodisperse Carbon Cryogel Microspheres', Micropor. Macropor. Mater., 112, 211-218(2008) https://doi.org/10.1016/j.micromeso.2007.09.031