IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0214536
(2011-08-22)
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| 등록번호 |
US-8496739
(2013-07-30)
|
|
발명자
/ 주소 |
- Dawes, Steven Bruce
- Johnson, Benedict Yorke
- Walczak, Wanda Janina
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| 출원인 / 주소 |
|
| 대리인 / 주소 |
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| 인용정보 |
피인용 횟수 :
0 인용 특허 :
21 |
초록
A filter apparatus comprising an organic antioxidant. The filter apparatus may be use, for example, in the removal of a toxic metal from a fluid stream.
대표청구항
▼
1. A filter apparatus comprising: a honeycomb shaped support body;an activated carbon layer on the support body; andan organic antioxidant; wherein the organic antioxidant is present as a solid phase,wherein the organic antioxidant is present as an organic antioxidant layer and the activated carbon
1. A filter apparatus comprising: a honeycomb shaped support body;an activated carbon layer on the support body; andan organic antioxidant; wherein the organic antioxidant is present as a solid phase,wherein the organic antioxidant is present as an organic antioxidant layer and the activated carbon layer is sandwiched between the organic antioxidant layer and the support body, andwherein the organic antioxidant is selected from ascorbic acid, glutathione, sodium ascorbate, calcium ascorbate, trans stilbene oxide, tetrakis-(methylene-(3,5-di-(tert)-butyl-4-hydrocinnamate))methane, octadecyl 3,5-Di-(tert)-butyl-4-hydroxyhydrocinnamatelimonene, citrus oils, tocopherol, or combinations thereof. 2. The filter apparatus of claim 1, wherein the support body comprises a sorbent material. 3. The filter apparatus of claim 1, wherein the support body comprises activated carbon. 4. The filter apparatus of claim 1, wherein the activated carbon comprises pores having pore diameter sizes from 0.001 microns to 100 microns. 5. The filter apparatus of claim 1, wherein the activated carbon comprises micropores, mesopores and macropores. 6. The filter apparatus of claim 1, wherein the filter apparatus comprises surfaces having pores and the pore diameter sizes from 0.001 microns to 100 microns. 7. The filter apparatus of claim 1, wherein the support body comprises a glass, ceramic, or glass-ceramic. 8. The filter apparatus of claim 1, wherein the support body is essentially free of sulfur. 9. The filter apparatus of claim 1, wherein an organic antioxidant is distributed throughout the support body. 10. The filter apparatus of claim 1, wherein the organic antioxidant is ascorbic acid. 11. The filter apparatus of claim 1, wherein the organic antioxidant is ascorbic acid and glutathione. 12. The filter apparatus of claim 1, wherein the organic antioxidant is present in an amount from 0.1% to 50% by weight of the uncoated support body. 13. A method of treating a fluid stream comprising a toxic metal, the method comprising: contacting a fluid stream with a filter apparatus comprising: a honeycomb shaped support body;an activated carbon layer on the support body; andan organic antioxidant; wherein the organic antioxidant is present as a solid phase;wherein the organic antioxidant is present as an organic antioxidant layer and the activated carbon layer is sandwiched between the organic antioxidant layer and the support body; andwherein the organic antioxidant is selected from ascorbic acid, glutathione, sodium ascorbate, calcium ascorbate, trans stilbene oxide, tetrakis-(methylene-(3,5-di-(tert)-butyl-4-hydrocinnamate))methane, octadecyl 3,5-Di-(tert)-butyl-4-hydroxyhydrocinnamatelimonene, citrus oils, tocopherol, or combinations thereof,inhibiting oxidation of sulfur compounds in the fluid stream; andremoving at least a portion of the toxic metal from the fluid stream. 14. The method of claim 13, wherein the fluid stream comprises a gas. 15. The method of claim 13, wherein the toxic metal is mercury.
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