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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.

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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 thereon. 2. A method of removing mercury vapor from a gas stream comprising the steps of:providing a polyethersu

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 thereon. 2. A method of removing mercury vapor from a gas stream comprising the steps of:providing a polyethersulfone or an anion resin-coated surface;loading elemental iodine onto the polyethersulfone or an anion resin-coated surface; and,contacting the iodine-loaded polyethersulfone or an anion resin-coated surface with a gas stream containing vapor-phase mercury. 3. A method according to claim 2 wherein the step of loading iodine onto the polyethersulfone or an anion resin-coated surface includes the steps of:dissolving elemental iodine in an organic fluid; and,applying the organic fluid/iodine solution to the polyethersulfone or an anion resin-coated surface. 4. A method according to claim 3 wherein the step of dissolving elemental iodine in an organic fluid includes dissolving elemental iodine in pentane. 5. A method according to claim 4 wherein the step of dissolving elemental iodine in pentane comprises dissolving elemental iodine in pentane at a ratio of at least 0.001 moles per liter. 6. A method according to claim 4 wherein the step of dissolving elemental iodine in pentane comprises dissolving elemental iodine in pentane at a ratio of at least 0.005 moles per liter. 7. A method according to claim 4 wherein the step of dissolving elemental iodine in pentane comprises dissolving elemental iodine in pentane at a ratio of between 0.05 and 0.10 moles per liter. 8. A method according to claim 4 wherein the step of dissolving elemental iodine in pentane comprises dissolving elemental iodine in pentane at a ratio of about 0.0079 moles per liter. 9. A method according to claim 4 wherein the step of loading iodine onto the polyethersulfone or anion exchange resin-coated filtering substrate includes the step of removing the polyethersulfone or anion exchange resin-coated substrate from the pentane and iodine solution and rinsing the polyethersulfone or anion exchange resin-coated substrate in pentane. 10. A method according to claim 2 wherein the step of loading iodine onto the polyethersulfone surface includes chemisorbing elemental iodine thereon. 11. A method according to claim 2 wherein the temperature of the gas stream is up to about 3000° F. 12. A method according to claim 2 wherein the step of providing a polyethersulfone or anion resin-coated surface comprises providing a substrate having a polyethersulfone or anion resin-coated surface and selected from the group consisting of a woven material, a fibrous mat, a porous solid, a non-porous solid, and a finely divided solid. 13. A method according to claim 2 wherein at least one polyethersulfone or anion exchange or an anion resin-coated surface comprises a plurality of polyethersulfone ion exchange or anion resin-coated surfaces defining passageways through which flows the gas stream containing elemental mercury. 14. A method according to claim 2 which further comprises:a filter chamber;a filter support mounted in the filter chamber;the filter mounted on the filter support; and,an inlet conduit and an exhaust conduit in communication with the filter chamber. 15. A method according to claim 2 wherein the elemental mercury in the gas stream is a vapor. 16. A method according to claim 2 wherein the method of removing elemental mercury from a gas stream comprises a method of analyzing the gas stream to determine the amount of elemental mercury in the gas stream. 17. A method according to claim 2 wherein the step of providing a polyethersulfone or anion exchange resin-coated surface comprises providing a substrate having a polyethersulfone or anion exchange resin-coated surface and selected from the group consisting of a filter paper, a filter tape, and a membrane. 18. A method of analyzing mercury in a gas stream comprising the steps of:providing a mercury containing gas stream;extra cting a portion of the gas stream;passing the extracted portion through a filter train, the filter train comprising a first filter for extracting particulate oxidized mercury, a second filter for extracting oxidized vapor phase mercury, and a third filter for extracting elemental vapor phase mercury; and,the third filter comprising a gas permeable polyethersulfone or anion exchange resin-coated substrate having elemental iodine disposed on the surface of the substrate. 19. A method according to claim 18 wherein the elemental iodine disposed on the surface of the gas permeable polyethersulfone or anion exchange resin-coated substrate is chemisorbed thereon. 20. A method according to claim 19 wherein the iodine/pentane has a ratio of at least 0.01 moles per liter. 21. A method according to claim 19 wherein the iodine/pentane has a ratio of between 0.05 and 0.10 moles per liter. 22. A method according to claim 19 wherein the iodine/pentane has a ratio of about 0.08 moles per liter. 23. A method according to claim 19 wherein the iodine/pentane has a ratio of at least 0.001 moles per liter. 24. A method according to claim 19 wherein the iodine/pentane has a ratio of at least 0.01 moles per liter. 25. A method according to claim 19 wherein the iodine/pentane has a ratio of between 0.05 and 0.10 moles per liter. 26. A method according to claim 19 wherein the iodine/pentane has a ratio of about 0.08 moles per liter. 27. A method according to claim 18 wherein the gas permeable polyethersulfone or anion exchange resin-coated substrate having elemental iodine disposed on the surface of the substrate is formed by immersing the polyethersulfone or Anion exchange resin-coated filtering substrate in a pentane/iodine solution.