Thermodynamic and kinetic study for subcritical water extraction of PAHs

다국어 초록 (Multilingual Abstract)

Four models were used to describe the subcritical water extraction’ (SCWE) kinetics of polycyclic aromatic hydrocarbons (PAHs) at elevated temperatures in this work. The subcritical water extraction profiles obtained at temperatures of 200 8C and 250 8C were fitted with four models to presume the extraction mechanism parameters which could provide conceptual design to develop scale up methodology from laboratory SCWE devices. Among the four models, the two-site kinetic desorption model gave the best description of SCWE of phenanthrene, fluoranthene, and pyrene. Both the model analysis and experimental results suggested that the first desorption step is more important than the volumetric mass transfer process in this study. The desorption activation energy attained for extraction of phenanthrene, fluoranthene, and pyrene in this study were calculated to be 57, 52, and 70 kJ/mol,respectively. Conclusively, the model analysis could give information on the controlling step of PAHs extraction in SCWE process.

참고문헌 (Reference)

1 S. Gan, 172 : 532-, 2009

2 A. Enell, 54 : 707-, 2004

3 A. Kawashima, 75 : 788-, 2009

4 H.K. Yak, 69 : 209-, 1999

5 S. M. Roger, 856 : 83-, 1999

6 J. Kronholm, 23 : 123-, 2002

7 J.L. Snyder, 64 : 1940-, 1992

8 C. Quan, 31 : 149-, 2004

9 T. Castelo-Grande, 111 : 167-, 2005

10 A.J.M. Lagadec, 34 : 1542-, 2000

11 S.B. Hawthorne, 66 : 2912-, 1994

12 S.B. Hawthorne, 892 : 421-, 2000

13 Y. Yang, 555 : 364-, 2006

14 S.H. Haddadi, 652 : 224-, 2009

15 C.C. Teo, 1217 : 2484-, 2010

16 C.H.L. Ho, 89 : 64-, 2008

17 A. Kuba´tova´, 975 : 175-, 2002

18 M. Khajenoori, 17 : 359-, 2009

19 S.B. Hawthorne, 35 : 4577-, 2001

20 J.E. Cacace, 77 : 1087-, 2006

21 T. Anekpankul, 55 : 343-, 2007

22 A.E. Latawiec, 78 : 1042-, 2010

23 Y. Yang, 810 : 149-, 1998

24 J.J. Langenfeld, 67 : 1727-, 1995

25 Y. Yang, 156 : 745-, 2008

26 G. Cornelissen, 31 : 454-, 1997

27 M.T.O. Jonker, 39 : 7889-, 2005

28 C. Mantell, 57 : 3831-, 2002

29 U. Ghosh, 35 : 3468-, 2001

30 A. Enell, 61 : 1529-, 2005

31 Mohammad Nazrul Islam, "Thermodynamic and kinetic study for subcritical water extraction of PAHs" 한국공업화학회 19 (19): 129-136, 2013