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Abstract

Inverse gas chromatography was applied to characterize the changes in pore structure of activated carbon samples (commercial, de-ashed, and de-ashed and oxidized) before and after the adsorption of tert-butylbenzene, and after its desorption by means of supercritical carbon dioxide. The slit-like micropore model was used for the description of the pore structure. It was shown that tert-butylbenzene was desorbed with greater difficulty from samples containing basic impurities. Changes in the amounts of surface groups (acidic and basic) during the desorption process were not significant.

References

Barton

S.S.

and Harrison

B.H.

(1974) Carbon 13, 283.

Böehm

H.P.

and Voll

(1970) Carbon 8, 227.

Böehm

H.P.

(1994) Carbon 32, 759.

Carrott

P.J.M.

and Sing

K.S.W.

(1989) J. Chromatogr. 406, 139.

Dollimore

Heal

G.R.

and Martin

D.R.

(1970) J. Chromatogr. 50, 209.

Dubinin

M.M.

(1983) Carbon 21, 359.

Dubinin

M.M.

and Isirikyan

A.A.

(1980) Izv. Akad. Nauk SSSR, Ser. Khim. 13.

Emmert

R.E.

and Pigford

R.L.

(1954) Chem. Eng. Prog. 50, 87.

Fanning

P.E.

and Vannice

M.A.

(1993) Carbon 31, 721.

10.

Garden

V.A.

and Weiss

D.E.

(1957) Aust. J. Chem. 10, 309.

11.

Grajek

Witkiewicz

and Jankowska

(1997) J. Chromatogr. A 782, 87.

12.

Grajek

Witkiewicz

Jankowska

and Świątkowski

(1998) Przem. Chem. 77, 219.

13.

Grajek

(1999) Adsorp. Sci. Technol. 17, 785.

14.

Grajek

(2000) Adsorp. Sci. Technol. 18, 347.

15.

F.C.

and Hummel

R.L.

(1970) Chem. Eng. Sci. 25, 1225.

16.

Houser

T.J.

Tiffany

D.M.

McCarville

M.E.

and Houghton

M.E.

(1986) Fuel 65, 827.

17.

Jankowska

Świątkowski

and Choma

(1991) Active Carbon, Ellis Horwood Ltd., New York/Chichester, UK.

18.

Korver

J.A.

(1950) Chem. Weekblad 46, 301.

19.

Mattson

J.S.

and Mark

H.B.

Jr. (1971) Activated Carbon, Marcel Dekker, New York.

20.

Nakahara

Chappelear

P.S.

and Kobayashi

(1977) Ind. Eng. Chem., Fundam. 16, 220.

21.

Parcher

J.F.

and Lin

P.J.

(1981) Anal. Chem. 53, 1889.

22.

Paryjczak

(1986) Gas Chromatography in Adsorption and Catalysis, Polish Scientific Publishers, Warsaw/Ellis Horwood Ltd., Chichester, UK.

23.

Prasetyo

and Do

D.D.

(1999) AIChE J. 45, 1892.

24.

Press

W.H.

Flannery

B.P.

Teukolsky

S.A.

and Vetterling

W.T.

(1986) Numerical Recipes. The Art of Scientific Computing, Cambridge University Press, Cambridge, UK.

25.

Pyda

and Guiochon

(1997) Langmuir 13, 139.

26.

Rand

(1976) J. Colloid Interface Sci. 56, 337.

27.

Stanley

B.J.

and Guiochon

(1995) Langmuir 11, 1735.

28.

Stoeckli

H.F.

(1990) Carbon 28, 1.

Elucidating the Changes in Activated Carbon Pore Structure as a Result of Tert -Butylbenzene Adsorption and its Desorption by Means of Supercritical Carbon Dioxide

Abstract

References