Thermochemical treatment of zeolitic cracking catalysts containing rare-earth elements
The authors report on the optimization of process conditions in the thermochemical treatment in commercial production of the catalyst KMTsR-N. Freshly molded zeolitic hydrogel beads, with or without specially introduced aluminum hydroxide, were treated successively with a nitrate solution of rare-earth elements (REE) and an ammonium nitrate solution. A simplified flow plan for the thermochemical treatment is shown. The dynamics of the variation and concentration of the treating solutions and the composition of the hydrogen beads during thermochemical treatment is shown. The studies show that in order to obtain a uniform distribution of REE cations in zeolitic aluminosilicate hydrogel beads, the beads must be treated with a solution containing a mixture of ammonium and REE cations.
- OSTI ID:
- 6184240
- Journal Information:
- Chem. Technol. Fuels Oils (Engl. Transl.); (United States), Vol. 22:5-6; Other Information: Translated from Khimiya i Teknologiya Topliv i Masel; 22: No.6, 2-4(May-Jun 1986)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
PETROLEUM
CATALYTIC CRACKING
RARE EARTH COMPOUNDS
ACTIVATION ENERGY
ZEOLITES
CATALYTIC EFFECTS
SYNTHESIS
THERMOCHEMICAL PROCESSES
ALUMINIUM HYDROXIDES
AMMONIUM NITRATES
CATALYSTS
CATIONS
HEAT TREATMENTS
HETEROGENEOUS CATALYSIS
ION EXCHANGE
MATRIX MATERIALS
PROCESS SOLUTIONS
QUANTITATIVE CHEMICAL ANALYSIS
SODIUM OXIDES
ALKALI METAL COMPOUNDS
ALUMINIUM COMPOUNDS
AMMONIUM COMPOUNDS
CATALYSIS
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
DISPERSIONS
ENERGY
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
HYDROXIDES
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IONS
MATERIALS
MINERALS
MIXTURES
NITRATES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS
SODIUM COMPOUNDS
SOLUTIONS
020400* - Petroleum- Processing