Steaming affects FCC catalyst

Journal Article · Fri Feb 01 04:00:00 EST 1991 · Hydrocarbon Processing; (USA)

OSTI ID:5887365

Moorehead, E L ^[1]

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1. M.W. Kellogg, Technology Development Center, Houston, TX (US)

Laboratory testing and evaluation of fresh FCC catalysts involves two steps - a deactivation step and a catalytic step. Much attention has historically been given to improved methods for laboratory catalytic performance evaluation in microactivity and pilot plant testing, particularly with respect to simulating the reaction conditions of a commercial FCC riser. Proper simulation of the deactivation mechanisms which occur commercially in a laboratory deactivation procedure is equally important. The measurement of steamed catalyst properties such as zeolite unit cell size, surface area, etc., can be used to guide in selection of steaming conditions which target typical equilibrium properties for a particular catalyst. Steamed properties provide a much better correspondence with catalyst performance than fresh properties. Some examples are discussed which illustrate this point. Because the nature of FCC unit operation dictates that a small fraction of the catalyst inventory be replaced with fresh catalyst on a continual basis, a distribution of properties reflecting the age distribution will exist in any equilibrium sample. A deactivation model is presented which combines catalyst and unit parameters to generate predicted equilibrium catalyst property distributions.

• OSTI ID: 5887365
• Journal Information: Hydrocarbon Processing; (USA), Journal Name: Hydrocarbon Processing; (USA) Vol. 70:2; ISSN HYPRA; ISSN 0018-8190
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ACTIVATION ENERGY
CATALYSTS
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHEMICAL REACTIONS
CHEMICAL REACTORS
CRACKING
DECOMPOSITION
ENERGY
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MINERALS
PERFORMANCE
PYROLYSIS
STEAM
THERMOCHEMICAL PROCESSES
ZEOLITES