초록 ▼

A method and chemical delivery system are provided. The method includes providing a non-aqueous hydrogen peroxide solution having a vapor phase separated from the substantially non-aqueous hydrogen peroxide solution by a membrane. The method further includes contacting a carrier gas or vacuum with t

A method and chemical delivery system are provided. The method includes providing a non-aqueous hydrogen peroxide solution having a vapor phase separated from the substantially non-aqueous hydrogen peroxide solution by a membrane. The method further includes contacting a carrier gas or vacuum with the vapor phase and delivering a gas stream comprising hydrogen peroxide to a critical process or application. The chemical delivery system includes a non-aqueous hydrogen peroxide solution having a vapor phase separated from the substantially non-aqueous hydrogen peroxide solution by a membrane. The system further includes a carrier gas or vacuum in fluid contact with the vapor phase and an apparatus for delivering a gas stream comprising at least one component of the hydrogen peroxide solution to a critical process or application.

대표청구항 ▼

1. A method comprising: (a) providing a non-aqueous hydrogen peroxide solution having a vapor phase separated from the non-aqueous hydrogen peroxide solution by a membrane;(b) contacting a carrier gas or vacuum with the vapor phase; and(c) delivering a gas stream comprising at least 1000 parts per m

1. A method comprising: (a) providing a non-aqueous hydrogen peroxide solution having a vapor phase separated from the non-aqueous hydrogen peroxide solution by a membrane;(b) contacting a carrier gas or vacuum with the vapor phase; and(c) delivering a gas stream comprising at least 1000 parts per million (ppm) hydrogen peroxide to a critical process or application. 2. The method of claim 1, wherein hydrogen peroxide permeates the membrane at a faster rate than any other component of the non-aqueous hydrogen peroxide solution. 3. The method of claim 1, wherein the membrane is a substantially gas-impermeable membrane. 4. The method of claim 3, wherein the substantially gas-impermeable membrane comprises an ion exchange membrane. 5. The method of claim 1, wherein the hydrogen peroxide solution comprises at least one component selected from the group consisting of diethyl phthalate, propylene carbonate, triethylphosphate, polyvinylpyrroidone, polyvinylalcohol, polyvinylacetate-polyvinylpyrrolidone co-polymer, mellitic acid, benzenehexol, tetrahydobenzoquinone, 1,8-octanediol, 2,6-dichlorophenol, acridine, 8-hydroxyquinoline, benzylic acid, 1,4-dioxane, amyl acetate, DMF, DMSO, dimethylacetamide, 2-ethyl-l-hexanol, furfuryl alcohol, 2-octanol, 2-methyl-2-heptanol, and combinations thereof. 6. The method of claim 1, further comprising changing the concentration of at least one component of the vapor phase by changing at least one of the following parameters: (a) the temperature of the hydrogen peroxide solution, (b) the pressure of the hydrogen peroxide solution, (c) the concentration of the hydrogen peroxide solution, (d) the temperature of the carrier gas, (e) the pressure of the carrier gas or vacuum, (f) the surface area of the membrane, and (g) the flow rate of the carrier gas. 7. A chemical delivery system comprising: (a) a non-aqueous hydrogen peroxide solution having a vapor phase separated from the non-aqueous hydrogen peroxide solution by a membrane;(b) a carrier gas or vacuum in fluid contact with the vapor phase; and(c) an apparatus for delivering a gas stream comprising at least 1000 ppm hydrogen peroxide to a critical process or application. 8. The chemical delivery system of claim 7, wherein hydrogen peroxide permeates the membrane at a faster rate than any other component of the non-aqueous hydrogen peroxide solution. 9. The chemical delivery system of claim 7, wherein the membrane is a substantially gas-impermeable membrane. 10. The chemical delivery system of claim 9, wherein the substantially gas-impermeable membrane comprises an ion exchange membrane. 11. The chemical delivery system of claim 7, wherein the hydrogen peroxide solution comprises at least one component selected from the group consisting of diethyl phthalate, propylene carbonate, triethylphosphate, polyvinylpyrroidone, polyvinyalcohol, polyvinyl acetate-polyvinylpyrrolidone co-polymer, mellitic acid, benzenehexol, tetrahydobenzoquinone, 1,8-octanediol, 2,6-dichlorophenol, acridine, 8-hydroxyquinoline, benzylic acid, 1,4-dioxane, amyl acetate, DMF, DMSO, dimethylacetamide, 2-ethyl-1-hexanol, furfuryl alcohol, 2-octanol, 2-methyl-2-heptanol, and combinations thereof. 12. A hydrogen peroxide delivery device comprising: (a)A housing having within it at least one membrane;(b) A non-aqueous hydrogen peroxide liquid solution contained within the housing; and(c) A head space contained within the housing and separated from the non-aqueous hydrogen peroxide solution by the membrane, wherein the housing is configured to allow a carrier gas to flow through the head space to produce a gas stream comprising at least 1000ppm hydrogen peroxide to a critical process or application. 13. The device of claim 12, wherein hydrogen peroxide permeates the membrane at a faster rate than any other component of the non-aqueous hydrogen peroxide solution. 14. The device of claim 12, wherein the membrane is a substantially gas-impermeable membrane. 15. The device of claim 14, wherein the substantially gas-impermeable membrane comprises an ion exchange membrane. 16. The device of claim 12, wherein the hydrogen peroxide solution comprises at least one component selected from the group consisting of diethyl phthalate, propylene carbonate, triethylphosphate, polyvinylpyrroidone, polyvinylalcohol, polyvinylacetate-polyvinylpyrrolidone co-polymer, mellitic acid, benzenehexol, tetrahydobenzoquinone, 1,8-octanedial, 2,6-dichlorophenol, acridine, 8-hydroxyquinoline, benzylic acid, 1,4-dioxane, amyl acetate, DMF, DMSO, dimethylacetamide, 2-ethyl-1-hexanol, furfuryl alcohol, 2-octanol, 2-methyl-2-heptanol, and combinations thereof. 17. The device of claim 16, wherein the membrane is substantially impermeable to the component. 18. The device of claim 12, wherein the at least one membrane comprises a plurality of membrane lumens. 19. The method of claim 1, wherein the hydrogen peroxide solution comprises propylene carbonate. 20. The method of claim 1, wherein the hydrogen peroxide solution comprises diethyl phthalate. 21. The system of claim 7, wherein the hydrogen peroxide solution comprises propylene carbonate. 22. The system of claim 7, wherein the hydrogen peroxide solution comprises diethyl phthalate. 23. The device of claim 12, wherein the hydrogen peroxide liquid solution comprises propylene carbonate. 24. The device of claim 12, wherein the hydrogen peroxide liquid solution comprises diethyl phthalate.