Zeolite SSZ-50
OwnerGregory S. Lee, Stacey I. Zonesinventors
Life of this patent
Estimating the term…
Abstract
The present invention relates to new crystalline zeolite SSZ-50 prepared using a quaternary ammonium cation templating agent having the structure 1 where X— is an anion which is not detrimental to the formation of the SSZ-50. SSZ-50 is useful in catalysts for hydrocarbon conversion reactions.
Claims48
A zeolite having a mole ratio of about 20 or greater of an oxide selected from the group consisting of silicon oxide, germanium oxide and mixtures thereof to an oxide selected from aluminum oxide, gallium oxide, iron oxide, titanium oxide, indium oxide, vanadium oxide and mixtures thereof, and having, after calcination, the X-ray diffraction lines of Table I.
A zeolite having a composition, as synthesized and in the anhydrous state, in terms of mole ratios as follows:
- 10 YO2/WcOd 20 or greater M2/n/YO2 0.03-0.20 Q/YO2 0.02-0.08
- wherein Y is silicon, germanium or a mixture thereof;
- W is aluminum, gallium, iron, titanium, indium, vanadium or mixtures thereof, c is 1 or 2;
- d is 2 when c is 1 or d is 3 or 5 when c is 2;
- M is an alkali metal cation, alkaline earth metal cation or mixtures thereof;
- n is the valence of M;
- and Q is a quaternary ammonium cation having the structure
- 4
- where X— is an anion which is not detrimental to the formation of the zeolite.
A method of preparing a crystalline material having the RTH crystal structure and having a mole ratio of about 20 or greater of an oxide selected from silicon oxide, germanium oxide and mixtures thereof to an oxide selected from aluminum oxide, gallium oxide, iron oxide, titanium oxide, indium oxide, vanadium oxide and mixtures thereof, said method comprising contacting under crystallization conditions sources of said oxides and a templating agent comprising a quaternary ammonium cation having the structure
- 5
- where X— is an anion which is not detrimental to the formation of the crystalline material.
A process for converting hydrocarbons comprising contacting a hydrocarbonaceous feed at hydrocarbon converting conditions with a catalyst comprising a zeolite having a mole ratio of about 20 or greater of an oxide selected from the group consisting of silicon oxide, germanium oxide and mixtures thereof to an oxide selected from aluminum oxide, gallium oxide, iron oxide, titanium oxide, indium oxide, vanadium oxide and mixtures thereof, and having, after calcination, the X-ray diffraction lines of Table I.
A process for converting lower alcohols and other oxygenated hydrocarbons comprising contacting said lower alcohol or other oxygenated hydrocarbon under conditions to produce liquid products with a catalyst comprising a zeolite having a mole ratio of about 20 or greater of an oxide selected from the group consisting of silicon oxide, germanium oxide and mixtures thereof to an oxide selected from aluminum oxide, gallium oxide, iron oxide, titanium oxide, indium oxide, vanadium oxide and mixtures thereof, and having, after calcination, the X-ray diffraction lines of Table I.
In a process for the reduction of oxides of nitrogen contained in a gas stream in the presence of oxygen wherein said process comprises contacting the gas stream with a zeolite, the improvement comprising using as the zeolite a zeolite having a mole ratio of about 20 or greater of an oxide selected from the group consisting of silicon oxide, germanium oxide and mixtures thereof to an oxide selected from aluminum oxide, gallium oxide, iron oxide, titanium oxide, indium oxide, vanadium oxide and mixtures thereof, and having, after calcination, the X-ray diffraction lines of Table I.
A process for the separation of nitrogen from a nitrogen-containing gas mixture comprising contacting the mixture with a composition comprising a zeolite having a mole ratio of about 20 or greater of an oxide selected from the group consisting of silicon oxide, germanium oxide and mixtures thereof to an oxide selected from aluminum oxide, gallium oxide, iron oxide, titanium oxide, indium oxide, vanadium oxide and mixtures thereof, and having, after calcination, the X-ray diffraction lines of Table I.
Dependencies are inferred from the claim text.