A study, using a modified grain-model, of the influence of the concentration of oxygen and the rate of flow of gas on the regeneration of catalysts in fixed-bed reactors

Journal Article · Wed Apr 01 00:00:00 EST 1992 · International Chemical Engineering (A Quarterly Journal of Translations from Russia, Eastern Europe and Asia); (United States)

OSTI ID:7271901

Alayon, A B; Gonzalez-Mendoza, L A; Alvarez, R A; Diaz, M A ^[1]

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1. Dept. de Ingenieria Quimica y Technologia Farmaceutica, Univ. de la Laguna (ES)

This paper discusses solid catalysts used in fluid-fluid reactions deactivated by deposition of coke when they encounter the organic compounds present. These catalysts can be regenerated by combustion with diluted air. A modified grain-model was used to study the influence of the rate of flow of gas and the concentration in oxygen on the temperature and carbon profiles which were obtained during the regeneration of deactivated beds. The best conditions for the regeneration are an oxygen concentration of 15% and a rate of flow of gas of 1.25 {center dot} 10{sup {minus}4} m{sup 3}/s.

• OSTI ID: 7271901
• Journal Information: International Chemical Engineering (A Quarterly Journal of Translations from Russia, Eastern Europe and Asia); (United States), Vol. 32:2; ISSN 0020-6318
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CATALYSTS
REGENERATION
CHEMICAL REACTORS
CARBON
COKE
COMBUSTION
DECOMPOSITION
FLOW RATE
GASES
OXYGEN
PACKED BEDS
QUANTITY RATIO
SIMULATION
TEMPERATURE DISTRIBUTION
CHEMICAL REACTIONS
ELEMENTS
FLUIDS
NONMETALS
OXIDATION
THERMOCHEMICAL PROCESSES
400105* - Separation Procedures