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An apparatus and method for removing mercury, and in particular elemental mercury, from a fluid stream by exposing the fluid stream to a polyethersulfone or filter-coated with anion exchange resin, or anion exchange resin-coated surface onto which has been loaded elemental iodine. Elemental iodine i

An apparatus and method for removing mercury, and in particular elemental mercury, from a fluid stream by exposing the fluid stream to a polyethersulfone or filter-coated with anion exchange resin, or anion exchange resin-coated surface onto which has been loaded elemental iodine. Elemental iodine is loaded onto the PES or anion exchange resin-coated surface by immersing the PES or anion exchange resin-coated substrate in an iodine/pentane solution, then removing the substrate from the iodine/pentane solution and rinsing in pentane.

대표청구항 ▼

What is claimed is: 1. An apparatus for removing mercury from a gas stream, the apparatus comprising: a polyethersulfone surface or a surface coated with an anion exchange resin; and, elemental iodine disposed on a surface thereof. 2. An apparatus according to claim 1 wherein the elemental io

What is claimed is: 1. An apparatus for removing mercury from a gas stream, the apparatus comprising: a polyethersulfone surface or a surface coated with an anion exchange resin; and, elemental iodine disposed on a surface thereof. 2. An apparatus according to claim 1 wherein the elemental iodine disposed on the polyethersulfone or resin-coated surface is chemisorbed thereon. 3. An apparatus according to claim 2 wherein the polyethersulfone or resin-coated surface is selected from the group consisting of external surfaces and interstitial surfaces. 4. An apparatus according to claim 1 wherein the elemental iodine is deposited on the polyethersulfone or resin-coated surface by applying a solution of an organic fluid and elemental iodine to the polyethersulfone surface. 5. An apparatus according to claim 4 wherein the solution of pentane and elemental iodine comprises elemental iodine dissolved in pentane at a ratio of at least 0.001 moles per liter. 6. An apparatus according to claim 4 wherein the solution of pentane and elemental iodine comprises elemental iodine dissolved in pentane at a ratio of at least 0.01 moles per liter. 7. An apparatus according to claim 4 wherein the solution of pentane and elemental iodine comprises elemental iodine dissolved in pentane at a ratio of between 0.01 and 0.10 moles per liter. 8. An apparatus according to claim 4 wherein the solution of pentane and elemental iodine comprises elemental iodine dissolved in pentane at a ratio of about 0.0079 moles per liter. 9. An apparatus according to claim 4 wherein after immersing the polyethersulfone or ion exchange resin-coated substrate in a solution of pentane and elemental iodine the polyethersulfone or ion exchange resin-coated substrate is then rinsed in pentane. 10. An apparatus according to claim 1 wherein the temperature of the gas stream is up to about 300° F. 11. An apparatus according to claim 1 wherein the polyethersulfone or resin-coated surface is a surface of a substrate wherein the substrate is selected from the group consisting of woven material, a fibrous mat, a porous solid, a non-porous solid, and a finely divided solid. 12. An apparatus according to claim 11 wherein the substrate is a porous solid defining passageways through the solid, and wherein the passageways include at least one polyethersulfone or resin-coated surface. 13. An apparatus according to claim 1 which further comprises: a chamber including a substrate support, a gas inlet and a gas outlet; and, the polyethersulfone or resin-coated surface with the iodine disposed thereon disposed within the chamber. 14. An apparatus according to claim 1 wherein the polyethersulfone or Anion exchange resin-coated surface is a surface of a substrate wherein the substrate is selected from the group consisting of filter paper, filter tape, and a membrane.