Regeneration of coked catalysts: The effect of aging upon the characteristics of the coke deposits
- Univ. de Zaragoza (Spain). Dept. de Ingenieria Quimica y Tecnologias del Medio Ambiente
The effect of aging in nitrogen upon the regeneration characteristics of the coke deposits on chromia-alumina catalysts has been investigated. To this end, the coked catalysts have been subjected to various treatments in nitrogen, and the chemical composition and reactivity of the deposits have been investigated. The results show that the process of aging in nitrogen gives rise to significant changes in both the composition and reactivity of the coke deposits, due to the stripping of the coke fractions with a higher volatility. This obviously has important consequences upon the subsequent regeneration, which are also discussed and tested in regeneration experiments using coked catalyst of different ages.
- OSTI ID:
- 6702585
- Journal Information:
- Industrial and Engineering Chemistry Research; (United States), Vol. 33:11; ISSN 0888-5885
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CATALYSTS
REGENERATION
COKE
AGE DEPENDENCE
ALUMINIUM OXIDES
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHROMIUM OXIDES
DEACTIVATION
DEVOLATILIZATION
PETROLEUM REFINERIES
ALUMINIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMIUM COMPOUNDS
CRACKING
DECOMPOSITION
INDUSTRIAL PLANTS
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
020400* - Petroleum- Processing