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Coke removal from a zeolite catalyst by supercritical fluids
Author(s) -
Manos Georgios,
Hofmann Hanns
Publication year - 1991
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.270140111
Subject(s) - supercritical fluid , coke , zeolite , benzene , catalysis , chemistry , solubility , chemical engineering , organic chemistry , engineering
In the study of the possible coke removal from zeolite catalysts, the solubility of polyaromates in supercritical fluids (SCF) was determined, showing that it becomes drastically reduced with increasing molar mass. Experiments with supercritical ethyl benzene and benzene showed that only coke precursors can be dissolved and, therefore, complete coke removal by SCF is impossible but it has been confirmed that, under supercritical conditions, deactivation of the catalyst could be slowed down.