Browse > Article
http://dx.doi.org/10.7464/ksct.2011.17.4.329

Characteristics of $SF_6$ Gas Recycling Processes  

Cho, Hoon (Department of Chemical Engineering, Chungnam National University)
Woo, Dae-Sik (Department of Chemical Engineering, Chungnam National University)
Choi, Yu-Mi (Department of Chemical Engineering, Chungnam National University)
Han, Myung-Wan (Department of Chemical Engineering, Chungnam National University)
Publication Information
Clean Technology / v.17, no.4, 2011 , pp. 329-335 More about this Journal
Abstract
$SF_6$ gas is well known as a global warming gas. Global warming potential of $SF_6$ gas is 22,000 times higher than that of $CO_2$. Recycling of $SF_6$ gas is an essential technology for the sake of the environment and the economy. The recovery processes of $SF_6$ gas studied in this work were liquefaction, distillation, and crystallization processes because these processes were thought to be easily carried to the fields for recycling waste $SF_6$ gas. The processes were simulated and optimized using Aspen plus. The optimization problems were formulated to minimize energy consumption with satisfying product specification and desired recovery. The performance of the processes was compared based on the optimization results. Effects of major process variables on the recovery performance were investigated and optimal operation guide for changing product specification and product recovery was provided.
Keywords
$SF_6$; Liquefaction process; Distillation process; Crystallization process;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 P. Jannick, "A Novel Purification Process for Used ${SF_{6}}$ from Electrical Installations," International Conference on ${SF_{6}}$ and the Environment, December 1-3 (2004).
2 S.-H. Lee, N.-K. Park, S.-H. Yoon, W.-C. Chang, and T.-J. Lee, "Catalytic Decomposition of ${SF_{6}}$ by Hydrolysis and Oxidation over ${\gamma-Al_{2}O_{3}}$," Clean Technol., 15(4), 273-279 (2009).
3 S. Bartos, J. Marks, R. Kantamaneni, and C. Laush, "Measured ${SF_{6}}$ Emissions from Magnesium Die Casting Operations," Presented at the ${132^{ND}}$ TMS Annual Meeting, March 2-6 (2003).
4 J.-H. Lee, Y.-K. Yeo, H.-M. Moon, and D.-S. Park, "Modeling and Simulation of Sulfur Hexafluoride (${SF_{6}}$) Purification Process," Korean J. Chem. Eng., 17(2), 252-256 (2000).   DOI   ScienceOn
5 V. V. Timofeev, B. S. Lunin, N. Y. Mordkovich, and Y. N. Zhitnev, "Dynamics of Vibrational Relaxation of Multiphoton Excited ${SF_{6}}$ Molecules in Gaseous Mixtures Containing Ozone and Inert Gases (He, Ar, Kr)," Laser Chem., 10, 159-167 (1989).