Catalyst for conversion of oxygenates to aromatics
AssigneeExxonMobil Research and Engineering Company
InventorsBrett Loveless, Rohit Vijay, Samia Ilias, Stephen J. McCarthy
Life of this patent
Estimating the term…
Abstract
Catalyst compositions including a zeolite having a molar ratio of silicon to aluminum of about 10.0 to about 300.0; a Group 10-12 element and combinations thereof; a Group 15 element and combinations thereof; and optionally, a binder, wherein the catalyst composition has a molar ratio of Group 15 element to Group 10-12 element of about 0.01 to about 10.0 are disclosed. Methods of converting organic compounds to aromatics using such catalyst compositions are also disclosed.
Claims36
A catalyst composition comprising:
- a zeolite having a molar ratio of silicon to aluminum of about 10.0 to about 300.0;
- a Group 10-12 element and combinations thereof,
- a Group 15 element and combinations thereof;
- and
- optionally, a binder,
- wherein the catalyst composition has a molar ratio of Group 15 element to Group 10-12 element of about 0.01 to about 10.0.
A catalyst composition comprising a silicoaluminate zeolite, zinc, phosphorus, and optionally a binder,
- the zeolite having a molar ratio of silicon to aluminum of about 10.0 to about 300.0,
- the catalyst composition comprising 0 to about 80.0 wt % binder, based on a total weight of the catalyst composition and having a micropore surface area of ≧about 100.0 m2/g, a molar ratio of zinc to aluminum of about 0.1 to about 1.3, a molar ratio of phosphorus to zinc of 0.01 to 10.0 and at least one of:
- (a) a mesoporous surface area of about 20.0 to 500.0 m2/g;
- and
- (b) a diffusivity for 2,2-dimethylbutane of 1.25×10−2 to 3.00×10−2 sec−1, when measured at a temperature of about 120° C. and a 2,2-dimethylbutane pressure of about 60 torr (about 8 kPa).
A method for organic compound conversion, comprising,
- providing a first mixture, the first mixture comprising ≧10.0 wt % oxygenate based on the weight of the first mixture
- exposing at a temperature ≧300° C. at a pressure ≧1 bara a catalyst composition to the first mixture to convert at least a portion of the oxygenate to a hydrocarbons, the hydrocarbons comprising ≧50.0 wt % of aromatics, based on the weight of the hydrocarbons, wherein the catalyst composition comprises a zeolite having a molar ratio of silicon to aluminum of 10.0 to 300.0;
- a Group 12 element selected from the group consisting of Zn, Cd, and combinations thereof;
- a Group 15 element selected from the group consisting of phosphorus, arsenic, antimony, bismuth, and combinations thereof;
- and optionally a binder,
- wherein the catalyst composition has a molar ratio of Group 15 element to Group 12 element of about 0.01 to about 10.0.
Dependencies are inferred from the claim text.