Toluene disproportionation process
Patent
·
OSTI ID:6367671
This patent describes a method for the disproportionation of a toluene containing feed stock to produce a disproportionation product containing benzene and xylene. The steps comprise: passing the toluene feed stock into a reaction zone into contact with a mordenite catalyst within the reaction zone having a silica to alumina mole ratio of at least 30. The feed stock is supplied to the reaction zone at a rate to provide a toluene WHSV greater than 1; supplying hydrogen to the reaction zone at a rate to provide hydrogen/toluene mole ratio within the range of 3-6; carrying out the disproportionation reaction within the reaction zone at a temperature within the range of 370/sup 0/-500/sup 0/C and a hydrogen pressure of at least 500 psig; and withdrawing the disporportionation product containing benzene and xylene from the reaction zone.
- Assignee:
- Cosden Technology, Inc., Dallas, TX
- Patent Number(s):
- US 4665258
- OSTI ID:
- 6367671
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKYLATED AROMATICS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
BENZENE
CATALYSTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
ELEMENTS
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MEDIUM PRESSURE
MINERALS
MORDENITE
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
QUANTITY RATIO
REDUCTION
SILICA
SILICATE MINERALS
SILICON COMPOUNDS
SILICON OXIDES
SYNTHESIS
TOLUENE
XYLENES
YIELDS
ZEOLITES
400201* -- Chemical & Physicochemical Properties
ALKYLATED AROMATICS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
BENZENE
CATALYSTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
ELEMENTS
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MEDIUM PRESSURE
MINERALS
MORDENITE
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
QUANTITY RATIO
REDUCTION
SILICA
SILICATE MINERALS
SILICON COMPOUNDS
SILICON OXIDES
SYNTHESIS
TOLUENE
XYLENES
YIELDS
ZEOLITES