Method of making molecular sieve catalyst
First Claim
Patent Images
1. A method of making molecular sieve catalyst particles, comprisinga) providing a first dried molecular sieve catalyst made of catalyst particles that contain molecular sieve particles bound together to form catalyst particles larger than the individual molecular sieve particles;
- b) combining the first dried molecular sieve catalyst with water to form a water-catalyst composition;
c) mixing the water-catalyst composition to form a slurry; and
d) drying the slurry to form particles of a second dried molecular sieve catalyst.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed is a method for making molecular sieve catalyst particles. Dried molecular sieve catalyst particles are used to make the catalyst. The dried molecular sieve catalyst particles are put into an aqueous solution and stirred to make a slurry. The slurry is dried to make the molecular sieve catalyst particles. Optionally, the dried molecular sieve catalyst particles made from the slurry are calcined.
-
Citations
62 Claims
-
1. A method of making molecular sieve catalyst particles, comprising
a) providing a first dried molecular sieve catalyst made of catalyst particles that contain molecular sieve particles bound together to form catalyst particles larger than the individual molecular sieve particles; -
b) combining the first dried molecular sieve catalyst with water to form a water-catalyst composition;
c) mixing the water-catalyst composition to form a slurry; and
d) drying the slurry to form particles of a second dried molecular sieve catalyst. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 53, 54, 55, 56, 57)
(i) mixing a composition comprising molecular sieve, binder and water; and
(ii) drying the composition to form the first dried molecular sieve catalyst.
-
-
54. The method of claim 2, wherein the water used in b) comprises at least 97 wt % water.
-
55. The method of claim 54, wherein the water used in b) comprises at least 98 wt % water.
-
56. The method of claim 12, wherein the molecular sieve catalyst particles obtained in e) have an EMARI of not greater than 0.7 wt %/hr.
-
57. The method of claim 56, wherein the molecular sieve catalyst particles obtained in e) have an EMARI of not greater than 0.3 wt %/hr.
-
22. A method of recycling molecular sieve catalyst particles having undesired properties, comprising
(a) mixing a composition comprising molecular sieve, binder and water; -
(b) drying the composition to form a first dried molecular sieve catalyst made of molecular sieve particles bound together to form particles larger than the individual molecular sieve particles;
(c) combining at least a portion of the first dried molecular sieve catalyst with water to form a water-catalyst composition;
(d) mixing the water-catalyst composition to form a slurry;
(e) drying the slurry to form particles of a second dried molecular sieve catalyst. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 58, 59)
-
-
34. A method of making a molecular sieve catalyst composition comprising;
-
providing first dried molecular sieve catalyst particles made of molecular sieve particles bound together to form particles larger than the individual molecular sieve particles, wherein the first dried molecular sieve catalyst particles yield, upon calcining, a calcined molecular sieve composition having greater than 5 wt % catalyst particles having an average particle diameter greater than or equal to 250 microns;
combining the dried molecular sieve catalyst particles with water to form a slurry; and
drying the slurry to form the molecular sieve catalyst composition. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 60, 61)
-
- 52. A calcined molecular sieve catalyst composition comprising catalyst particles that contain molecular sieve particles bound together to form catalyst particles larger than the individual molecular sieve particles, wherein the catalyst particles, after being submitted to calcination, have an EMARI of equal or less than 0.7 wt %/hr.
Specification