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US 11,839,868 B2Granted
Method of using a sulfur-tolerant catalyst
AssigneeBASF SE
InventorsGerard D. Lapadula, Tiep M. Pham, Michael Durilla, Pascaline Harrison Tran
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Abstract
Disclosed in certain embodiments is a sulfur tolerant catalytic system that includes a catalytic material coated onto a substrate. Certain embodiments are directed to a method of preparing a sulfur-tolerant catalyst.
Claims14
A method comprising:
- providing a catalytic system, wherein the catalytic system comprises:
- a catalytic material comprising:
- an active precious metal component comprising platinum;
- and
- a sulfur-tolerant support material comprising silica and zirconia mixture;
- and
- a substrate having the catalytic material coated thereon;
- placing the catalytic system in a stream containing carbon monoxide and high sulfur levels of at least 0.1 ppm of sulfur;
- and
- aging the stream containing the high sulfur levels with the catalytic system, wherein the aging results in a carbon monoxide conversion greater than 80% after aging the stream for 1500 hours.
7 more elements
A method comprising:
- providing a catalytic system, wherein the catalytic system comprises:
- a catalytic material comprising:
- an active precious metal component comprising platinum;
- and
- a sulfur-tolerant support material comprising silica and zirconia mixture, wherein the silica to zirconia ratio in the sulfur-tolerant support material ranges from 1:4 to 1:98;
- and
- a substrate having the catalytic material coated thereon;
- placing the catalytic system in a stream containing carbon monoxide and high sulfur levels of at least about 0.1 ppm of sulfur;
- and
- aging the stream containing the high sulfur levels with the catalytic system, wherein the aging results in a carbon monoxide conversion greater than 80%.
7 more elements
A method comprising:
- providing a catalytic system, wherein the catalytic system comprises:
- a catalytic material comprising:
- an active precious metal component comprising platinum;
- and
- a sulfur-tolerant support material comprising silica and zirconia mixture, wherein the catalytic material is in the form of particles, and wherein 90% of the particles have a particle size ranging from about 6 micrometers to about 14 micrometers;
- and
- a substrate having the catalytic material coated thereon;
- placing the catalytic system in a stream containing carbon monoxide and high sulfur levels of at least about 0.1 ppm of sulfur;
- and
- aging the stream containing the high sulfur levels with the catalytic system, wherein the aging results in a carbon monoxide conversion greater than 80%.
7 more elements
Dependencies are inferred from the claim text.