Hydrocarbon conversion using molecular sieve SSZ-51
AssigneeChevron U.S.A. Inc.
InventorsStacey I. Zones, Thomas V. Harris
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Abstract
A novel crystalline aluminophosphate and metalloaluminophosphate of the molecular sieve type, denominated SSZ-51, is prepared by hydrothermal synthesis from reactive sources of aluminum and phosphorus, fluorine and an organic templating agent, 4-dimethylaminopyridine. SSZ-51 is useful in catalysts for, e.g., hydrocarbon conversion reactions.
Claims58
A process for converting hydrocarbons comprising contacting a hydrocarbonaceous feed at hydrocarbon converting conditions with a catalyst comprising a molecular sieve whose chemical composition, expressed in terms of mole ratios of oxides after calcination, is:
- Al2O3:1.0±0.2 P2O5:
- x SiO2:
- y MeO ;
- z F
- where x has a value of 0 to 0.2, y has a value of 0 to 0.2, z has a value of 0 to 0.10 and Me represents at least one element, other than aluminum, phosphorus or silicon, which is capable of forming an oxide in coordination with (AlO2) and (PO2) oxide structural units in the molecular sieve, the molecular sieve having, after calcination and in a hydrated state, the X-ray diffraction lines of Table II.
A process for converting oxygenated hydrocarbons comprising contacting said oxygenated hydrocarbon under conditions to produce liquid products with a catalyst comprising A molecular sieve whose chemical composition, expressed in terms of mole ratios of oxides after calcination, is:
- Al2O3:
- 1.0±0.2 P2O5:
- x SiO2:
- y MeO;
- z F
- where x has a value of 0 to 0.2, y has a value of 0 to 0.2, z has a value of 0.02 to 0.10 and Me represents at least one element, other than aluminum, phosphorus or silicon, which is capable of forming an oxide in coordination with (AlO2) and (PO2) oxide structural units in the molecular sieve, the molecular sieve having, after calcination and in a hydrated state, the X-ray diffraction lines of Table II.
Dependencies are inferred from the claim text.