Catalysts for natural gas processes
AssigneeLummus Technology Inc.
InventorsErik M. Freer, Wayne P. Schammel, Fabio R. Zurcher, Joel M. Cizeron, Jin Ki Hong, Anja Rumplecker, Sam Maurer, Joel Gamoras, Daniel Rosenberg, Erik C. Scher
Life of this patent
Estimating the term…
Abstract
Catalysts, catalytic forms and formulations, and catalytic methods are provided. The catalysts and catalytic forms and formulations are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane. Related methods for use and manufacture of the same are also disclosed.
Claims25
A catalytic material comprising:
- (a) an OCM active catalyst;
- and
- (b) a second catalyst comprising the following formula:
- Ln1aLn2bOx(OH)y
- wherein:
- Ln1 and Ln2 are each independently different lanthanide elements;
- O is oxygen;
- OH is hydroxy;
- a is a number greater than 0;
- and
- b, x and y are each independently numbers of 0 or greater, provided that at least one of x or y is greater than 0, and
- wherein the catalytic material comprises a methane conversion of greater than 10% and a C2+selectivity of greater than 50% when the catalytic material is employed as a heterogeneous catalyst in the oxidative coupling of methane at a temperature ranging from about 550° C. to about 850° C.
A formed catalytic material for performing oxidative coupling of methane at linear velocities ranging from about 0.1 m/s to about 10 m/s, the catalytic material comprising:
- a) a catalyst;
- b) a non-tessellating shape having a plurality of penetrating holes therethrough, the non-tessellating shape selected from the group consisting of an ellipse, a pentagon, and a ring shape;
- c) a binder or diluent;
- d) a crush strength of greater than about 2 N/mm after exposure to air comprising water at temperatures between about 20° C. and 30° C. for greater than 50 hours;
- and
- d) a bed void fraction of greater than 0.3.
A formed catalytic material for performing oxidative coupling of methane at linear velocities ranging from about 0.1 m/s to about 10 m/s, the formed catalytic material comprising (a) a catalyst and a binder or diluent;
- (b) a non-tessellating shape having a plurality of penetrating holes therethrough, the non-tessellating shape selected from the group consisting of an ellipse, a pentagon, and a ring shape;
- and (c) at least one rounded or chamfered edge, at least one convex surface or combinations thereof, wherein the catalytic material comprises a methane conversion of greater than 20% and a C2+selectivity of greater than 50% when the catalytic material is employed as a heterogeneous catalyst in the oxidative coupling of methane at a temperature ranging from about 550° C. to about 850° C.
A formed catalytic material for performing oxidative coupling of methane at linear velocities ranging from about 0.1 m/s to about 10 m/s, the formed catalytic material comprising (a) a catalyst and a least one binder or diluent;
- (b) a non-tessellating shape having a plurality of penetrating holes therethrough, the non-tessellating shape selected from the group consisting of an ellipse, a pentagon, and a ring shape;
- and (c) at least one rounded or chamfered edge, at least one convex surface or combinations thereof, wherein the catalytic material comprises a methane conversion of greater than 10% and a C2+selectivity of greater than 50% when the catalytic material is employed as a heterogeneous catalyst in the oxidative coupling of methane at a temperature ranging from about 550° C. to about 850° C.
Dependencies are inferred from the claim text.