Regenerative sulfur sorption
A substrate or method for the sorption of sulfur compounds with a high capacity includes providing a substrate that defines at least one layer of ultra-short-channel-length mesh, coating at least a portion of the substrate with a desired sorbent for sulfur sorption, and passing a flowstream through the substrate and in contact with the sorbent during sorption.
1. A method for regenerable sulfur sorption comprising:
a) providing a substrate defining one layer of ultra short channel length mesh or a stack of layers of ultra short channel length meshes;
b) coating at least a portion of the substrate with a formulation comprising a sulfur sorbent exhibiting a high degree of adhesion and abrasion resistance, such that the volumetric loading of the sulfur sorbent is greater than about 5,000 mg/in 3 ; and
c) passing a flowstream comprising a sulfur compound through the substrate and in contact with the formulation.
2. The method of claim 1 wherein the sulfur sorbent comprises zinc oxide.
3. The method of claim 1 wherein the volumetric loading of the sulfur sorbent is greater than about 7,000 mg/in 3 .
4. The method of claim 2 wherein the volumetric loading of the sulfur sorbent is greater than about 7,000 mg/in 3 .
5. The method of claim 1 wherein the sorbent comprises a non-zeolite.
6. The method of claim 5 wherein the volumetric loading of the sulfur sorbent is greater than about 7,000 mg/in 3 .
7. The method of claim 1 whereby the coated substrate exhibits an overall volumetric sorption capacity of about 0.1 to about 0.2 grams of H 2 S uptake per cm 3 .
8. The method of claim 4 whereby the substrate is capable of conducting an electrical current therethrough and further comprising resistively heating the substrate.
9. The method of claim 6 whereby the substrate is capable of conducting an electrical current therethrough and further comprising resistively heating the substrate.
10. The method of claim 7 whereby the substrate is capable of conducting an electrical current therethrough and further comprising resistively heating the substrate.
11. The method of claim 1 wherein the sorption comprises absorption.
12. The method of claim 2 wherein the sorption comprises absorption.
13. The method of claim 5 wherein the sorption comprises absorption.
14. The method of claim 6 wherein the sorption comprises absorption.
15. The method of claim 7 wherein the sorption comprises absorption.
16. The method of claim 8 wherein the sorption comprises absorption.
17. The method of claim 9 wherein the sorption comprises absorption.
18. The method of claim 10 wherein the sorption comprises absorption.
19. The regenerative sorption method of claim 1 , wherein the sulfur sorbent comprises zinc oxide; and the volumetric sorption capacity ranges from 0.1 to 0.2 grams of H 2 S uptake per cm 3 of substrate.
20. The method of claim 19 wherein the volumetric loading of zinc oxide is greater than 7,000 mg/in 3 .