JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Study on the Development of Hybrid NMP Recovery System for Recovering the Used NMP in Lithium Ion Battery Cathode Manufacturing Process
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Study on the Development of Hybrid NMP Recovery System for Recovering the Used NMP in Lithium Ion Battery Cathode Manufacturing Process
Hwang, Soon Ho; Nam, Seung Beak; Kim, Dong-Kwon; Kim, Yang Jun; Kang, Sung Eun;
  PDF(new window)
 Abstract
The availability of NMP, a solvent used in the manufacturing process of cathode material for lithium ion battery, depends on importation, and the price remains high because of the monopoly of BASF and ISP. For these reasons, most Lithium ion battery manufacturers reuse NMP after recovering it from the exhaust air in the drying process. In Korea, absorption method is mainly used for recovering NMP from the absorption tower using the hydrophilicity of NMP. However, this system has a few disadvantages, such as low purity (80%) of the recovered NMP and 100% emission due to high water content of the treated gas. In this study, we develop a hybrid NMP recovery system by combining cooling condensation method with concentration method, by which it is possible to obtain an NMP recovery rate of 99.6%, and a high purity (96.1%) of the recovered NMP.
 Keywords
NMP;Volatile Organic Compounds;Cooling Condensation;Concentration;Recovery;Lithium Ion Battery;
 Language
Korean
 Cited by
 References
1.
Sea, B., Na, Y. S. and Song, S.-K., 2003, "Technologies for Volatile Organic Compounds (VOCs) Treatment," J. of the Environmental Sciences, Vol. 12, No. 7, pp. 825-833. crossref(new window)

2.
Korea Chemical Market Research Inc., 2008, "Market Analysis of Electrical Solvents."

3.
Takeyama, T., ODA, A., Kawase, Y. and Kawase, T., 2012, "Gas-Liquid Contact Device, Distillation Device, and Heat Exchange Device," 10-2014-7016780.

4.
Seo, J., Choi, H. C. and Jeong, W. S., 2009, "Device and Method for Recovering NMP from Exhaust Gas," 10-2010-0113438.

5.
Sa, J. H., Jeon, E. -C., Kim, S. J. and Han, J. H., 2013, "Removal of VOCs from Gasoline Reservoir at Gas Station using Cooled Condensing Unit," J. Korea Society of Environmental Administration, Vol. 19, No. 1, pp. 299-302.

6.
Kim, H. S., Yoo, Y. J., Ahn, Y. S., Chue, K. T., Shul, Y. G. and Han, M. H., 2001, "Design and Operation of VOC Concentrator for VOC Abatement," Journal of Theoretical and Applied Mechanics, pp. 299-302.

7.
Imoue, K., 2012, "A New Air Technology Using a Honeycomb Structure with an Added Adsorption Property," Adsorption News, Vol. 26, No. 3, pp. 10-15.

8.
Chang, F. T., Lin, Y. C., Bai, H. and Pei, B. S., 2003, "Adsroption and Desorption Characteristics of Semiconductor Volatile Organic Compounds on the Thermal Swing Honeycomb Zeolite Concentrator," J. Air & Waste Manage. Assoc., Vol. 53, pp. 1384-1390. crossref(new window)

9.
Kim, D. J., Oh, H. S., Kim, J. K., Park, M. J., Lee, M. and Koo, K. K., 2007, "Reclamation of High Purity Organic Solvents from Waste Photoresist Stripper," Clean Technology, Vol. 13, No. 4, pp. 257-265.