DEMET-process for demetalization of fluid cracking catalysts

Conference · Sat Aug 01 00:00:00 EDT 1987 · American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA)

OSTI ID:5426680

Elvin, F J; Otterstedt, J E; Sterte, J P ^[1]

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1. ChemCat Corp., New Orleans, LA (USA)

The control of the activity and selectivity of FCCU catalyst is the key to optimum yields and maximum profitability. Currently, refineries employ two methods of control: the addition of fresh catalyst, and the addition of good quality equilibrium catalyst. Onsite FCCU catalyst demetalization, called DEMET, is a third alternative which has been developed by ARCO and the ChemCat Corporation. The DEMET concept is based on thirty years of research and development by ChemCat, ARCO and its predecessors. The DEMET procedures are used to remove active metal contaminants from the surface of equilibrium catalysts. This results in increased activity and improved selectivity of the catalyst. DEMET is applicable to all types of amorphous and zeolite catalysts. All catalysts do, however, not respond in the same way to the different types of DEMET procedures. In order to ensure optimum process conditions, each catalyst has to go through an extensive testing program before the start of a commercial scale operation. This presentation gives an example of the response of one equilibrium catalyst to the basic DEMET procedures and to modified versions of these procedures. The catalysts are evaluated by elemental analysis and by their cracking performance, as determined by the micro activity test (MAT).

• OSTI ID: 5426680
• Report Number(s): CONF-8708311-; CODEN: ACPCA
• Journal Information: American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA), Vol. 32:3; Conference: Symposium on advances in FCC, New Orleans, LA (USA), 30 Aug - 4 Sep 1987; ISSN 0569-3799
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
CATALYSTS
DEMETALLIZATION
GAS OILS
CATALYTIC CRACKING
GASOLINE
PRODUCTION
VANADIUM
REMOVAL
CATALYSIS
CATALYTIC EFFECTS
CHEMICAL REACTION YIELD
DEACTIVATION
EQUILIBRIUM
EXPERIMENTAL DATA
OPTIMIZATION
REGENERATION
CHEMICAL REACTIONS
CRACKING
DATA
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
INFORMATION
LIQUID FUELS
METALS
NUMERICAL DATA
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PYROLYSIS
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
YIELDS
020400* - Petroleum- Processing