Steam regeneration of acetone and toluene in activated carbon and dealuminated Y-zeolite beds

详细信息    查看全文

• 作者：Dong-Geun Lee (1)
  Yun-Jin Han (1)
  Chang-Ha Lee (1) leech@yonsei.ac.kr
• 关键词：Key words Steam Regeneration – ; Acetone – ; Toluene – ; Activated Carbon – ; DAY ; zeolite
• 刊名：Korean Journal of Chemical Engineering
• 出版年：2012
• 出版时间：September 2012
• 年：2012
• 卷：29
• 期：9
• 页码：1246-1252
• 全文大小：643.3 KB
• 参考文献：1. P. Monneyron, M. H. Manero and J. N. Foussard, Environ. Sci. Technol., 37, 2410 (2003).
  2. M. A. Lillo-Rodenas, J. Carratala-Abril, D. Cazurla-Amoros and A. Linares-Solano, Fuel Process. Technol., 77–78, 331 (2002).
  3. M. Kang, Y. S. Bae and C. H. Lee, Carbon, 43, 1512 (2005).
  4. S. Brosillon, M. H. Manero and J. N. Foussard, Environ. Sci. Technol., 35, 3571 (2001).
  5. M. Kang and C. H. Lee, Appl. Catal. A: Gen., 266, 163 (2004).
  6. D. Das, V. Gaur and N. Verma, Carbon, 42, 2949(2004).
  7. X. Hu, S. Qiao, X. Zhao and G. Lu, Ind. Eng. Chem. Res., 40, 862 (2001).
  8. J. Adolphs and J. M. Setzer, J. Colloid Interface Sci., 180, 70 (1996).
  9. M. Guillemot, J. Mijoin, S. Mignard and P. Magnoux, Ind. Eng. Chem. Res., 46, 4614 (2007).
  10. D. P. Serrano, G. Calleja, J. A. Botas and F. J. Gutierrez, Ind. Eng. Chem. Res., 43, 7010 (2004).
  11. H. Ahn and C. H. Lee, AIChE J., 49, 1601 (2003).
  12. J. J. Lee, M. K. Kim, D.G. Lee, M. J. Kim, H. Ahn and C. H. Lee, AIChE J., 54, 2054 (2008).
  13. S. J. Lee, J. J. Hwan, J.H. Moon, J.G. Jee and C. H. Lee, Ind. Eng. Chem. Res., 46, 3720 (2007).
  14. S. D. Manjare and A. K. Ghoshal, Ind. Eng. Chem. Res., 45, 6563 (2006).
  15. S.W. Blocki, Environ. Prog., 12, 226 (1993).
  16. J.H. Kim S. J. Lee, M.B. Kim, J. J. Lee and C.H. Lee, Ind. Eng. Chem. Res., 46, 4584 (2007).
  17. D.G. Lee, J. H. Kim and C. H. Lee, Sep. Puri. Technol., 77, 312 (2011).
  18. J. H. Yun, D. K. Choi and H. Moon, Chem. Eng. Sci., 55, 5857 (2000).
  19. K. J. Oh, D.W. Park, S. S. Kim and S.W. Park, Korean J. Chem. Eng., 27, 632 (2010).
  20. C. A. Grande, J. Gascon, F. Kapteijn and A. E. Rodrigues, Chem. Eng. J., 160, 207 (2010).
  21. R. H. Perry, D.W. Green and J. O. Maloney, Perry’s chemical engineers’ handbook, 6th Ed, McGraw-Hill, New York (1984).
  22. Y. K. Ryu, J.W. Chang, S. Y. Jung and C. H. Lee, J. Chem. Eng. Data, 47, 363 (2002).
  23. Y. K. Ryu, H. J. Lee, H. K. Yoo and C.H. Lee, J. Chem. Eng. Data, 47, 1222 (2002).
• 作者单位：1. Department of Chemical and Biomolecular Engineering, Yonsei University, 262, Seongsan-ro, Seodaemun-gu, Seoul, 120-749 Korea
• ISSN：1975-7220

文摘

The dynamics of steam regeneration in activated carbon and dealuminated Y-zeolite (DAY-zeolite) beds was studied to recover acetone and toluene from effluent gases. Due to the higher adsorption capacity of acetone on both adsorbents, the desorption breakthrough of toluene was faster than that of acetone, but the breakthrough shape of acetone was steeper than that of toluene. The variation in breakthrough time as a function of steam flow rate was less in the activated carbon bed than in the DAY-zeolite bed. The inside temperature profiles during regeneration showed stepwise shapes. A temperature plateau was observed near 355 K for toluene, which is lower than its boiling temperature and azeotrope. A temperature plateau for acetone occurred near 330 K, near its boiling temperature. The duration of the temperature plateau at the bed end corresponded with the time period of high desorption concentration during acetone desorption; for toluene, plateau duration was shorter than the duration of high desorption concentration. The maximum effluent concentration of toluene reached only 80% of the feed concentration, while that of acetone was almost 100%. Therefore, the water-miscibility of the adsorbate was an important factor in steam regeneration.