| Search / Korean Journal of Chemical Engineering |
Korean Chemical Engineering Research,
Vol.43, No.4, 467-473, 2005
Vol.43, No.4, 467-473, 2005
Crude N2O로부터 정제된 N2O 분리공정에 관한 연구
A Study on the N2O Separation Process from Crude N2O
액상의 아산화질소(N2O) 혼합물은 주요 불순물로써 공기, 일산화탄소, 수분, 이산화탄소와 NOx 성분을 포함하고 있다. 저온에서 고체화하여 고 순도의 N2O를 얻어내는 것은 위험하다고 알려져 있다. 본 연구에서는 연속식 증류공정에 기초하여 고 순도의 N2O 제품을 얻어내는새로운 방법을 소개하였다. 99.999% 이상의 고 순도의 N2O 제품을 얻어낼 수 있는 연속식 증류공정을 모델화하기 위하여 intalox wire guaze 타입의 SCH-80S의 충진탑을 사용하였다. Peng Robinson 상태방정식을 사용하여 연속식 증류탑과 냉동 사이클을 모사하였다. 본 연구에서 수행한 전산모사 결과는 상용성 화학공정모사기인 Aspen Plus로 모사한 결과와 매우 잘 일치함을 알 수 있었다.
Liquid phase nitrous oxide (N2O) contains air, carbon monoxide, water, carbon dioxide and NOx as main impurities. It is known to be very dangerous to obtain a very pure N2O product by using solidification at low temperature. In this study a new method to obtain a high purity of N2O product based on a continuous distillation process was introduced. For the modeling of the continuous distillation process to obtain a product having a purity over 99.999% of N2O stream, Intalox wire gauze packing- No. SCH-80S gauze packing column was used. Peng-Robinson equation of state was used for the modeling of the continuous distillation process and refrigeration system. Computational results performed in this work showed a good agreement with Aspen Plus simulation results.
[References]
- Wrights AJ, Educational Synopses in Anesthesia and Critical Medical Care, 3(6), 10, 1996
- http://www.absoluteastronomy.com/encyclopedia/n/ni/nitrous_oxide.htm.
- OSullivan I, Benger J, Emerg. Med. J., 20(1), 214, 2003
- Peng DY, Robinson DB, Ind. Eng. Chem. Fundam., 15(1), 59, 1976
- Twu CH, Bluck D, Cunningham JR, Coon JE, Fluid Phase Equilib., 69(10), 33, 1991
- Twu CH, Coon JE, Cunningham JR, Fluid Phase Equilib., 75(14), 65, 1992
- Daubert TE, Technical Data Book - Petroleum Refining, 6th ed., American Petroleum Institute, 1997
- Jenson VG, Jeffreys GV, Mathematical Methods in Chemical Engineering, 2nd ed., United Publishing & Promotion Co., Ltd, 1977
- Holland CD, Fundamentals of Multicomponent Distillation, 1st ed., McGraw-Hill Book Company, 1981
- Yong PS, Moon HM, Yi SC, J. Ind. Eng. Chem., 8(6), 499, 2002
- Lee JY, Yeo YK, Moon HM, Park DS, Korean J. Chem. Eng., 17(2), 252, 2000
- Prausnitz JM, Lichitenthaler RN, Azevedo EG, Molecular Thermodynamics of Fluid Phase Equilibria, 3rd ed., Prentice-Hall Inc., 1998
- Walas SM, Phase Equilibria in Chemical Engineering, 1st ed,. Butterworth Publishers., 1985
참고문헌정보(참고문헌, 인용문헌)는 화학공학소재연구정보센터에 의해 제공되고 있습니다.