1989
Characterization of carbon deposits on used hydrotreating catalysts by Curie-point pyrolysis
Publication
Publication
J. Anal. Appl. Pyrolysis , Volume 15 p. 333- 345
Curie-point pyrolysis is applied to the characterization of the carbonaceous material deposited on used hydrotreating catalysts. Basically, the carbonaceous material can be divided in an extractable and non-extractable fraction. The extractable fraction consists of adsorbed molecules from the feed, mainly alkanes and small aromatic compounds. The non-extractable fraction is subdivided into strongly adsorbed feed molecules, a carbon fraction resistant to pyrolysis at 1043 K and a sulphur-containing fraction. The division between the extractable and non-extractable fraction is dependent on the extraction agent. Dichloromethane appears to produce a larger extractable fraction than benzene or hexane.
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| doi.org/10.1016/0165-2370(89)85045-4 | |
| J. Anal. Appl. Pyrolysis | |
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van Doorn, J., Moulijn, J. A., & Boon, J. J. (1989). Characterization of carbon deposits on used hydrotreating catalysts by Curie-point pyrolysis. J. Anal. Appl. Pyrolysis, 15, 333–345. doi:10.1016/0165-2370(89)85045-4 |
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