IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0676181
(2000-09-29)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Siemens Westinghouse Power Corporation
|
인용정보 |
피인용 횟수 :
14 인용 특허 :
5 |
초록
▼
A hot gas filtration apparatus includes a vessel, a plurality of filter elements mounted within the vessel and positioned such that hot gas flows through said filter elements, with each of said filter elements having a porous body, and a catalytic layer on surfaces of the porous body. The porous bod
A hot gas filtration apparatus includes a vessel, a plurality of filter elements mounted within the vessel and positioned such that hot gas flows through said filter elements, with each of said filter elements having a porous body, and a catalytic layer on surfaces of the porous body. The porous body of the filter element may include one of: a porous ceramic monolithic matrix, a continuous fiber reinforced ceramic composite (CFCC) matrix, a metallic matrix, an intermetallic matrix, a superalloy, and a metal-ceramic composite matrix. When the porous body is a nonoxide ceramic, a metallic matrix, an intermetallic matrix, a superalloy, or a metal-ceramic composite matrix, the invention further includes an oxidative resistant layer coating surfaces within the porous body, and the catalytic layer is on the oxidative resistant layer. A porous particulate removal membrane can be positioned on one or more surfaces of the filter element. The porous membrane can also provide a surface for one or more catalysts. The catalysts on the porous surface of the membrane(s) can be the same as or different from the catalysts on surfaces within the porous body.
대표청구항
▼
1. A hot gas filtration apparatus comprising:a vessel; a plurality of filter elements mounted within said vessel and positioned such that hot gas flows through said filter elements, each of said filter elements having a porous body, wherein the porous body includes an outer surface and an inner surf
1. A hot gas filtration apparatus comprising:a vessel; a plurality of filter elements mounted within said vessel and positioned such that hot gas flows through said filter elements, each of said filter elements having a porous body, wherein the porous body includes an outer surface and an inner surface, said porous body forming a substantially closed figure having a closed end and an open end, said open end formed to be coupled to a support structure, said porous body defining a channel beginning at said open end and terminating at said closed end through which a filtered clean gas can flow into the clean gas side of a hot gas clean up system, said porous body defining a flange at said open end for attachment to said support structure; a first catalytic layer on surfaces within the porous body; and a porous membrane positioned on said outer surface of said porous body; and said membrane including a second catalytic layer. 2. The hot gas filtration apparatus of claim 1, further comprising:a porous membrane positioned on said inner surface of said porous body; and said membrane including a third catalytic layer. 3. The hot gas filtration apparatus of claim 2, wherein said second and third catalytic layers include different catalysts.4. The hot gas filtration apparatus of claim 1, further comprising:a porous membrane positioned on said inner surface of said porous body; and said membrane including a second catalytic layer. 5. A hot gas filtration apparatus comprising:a vessel; a plurality of filter elements mounted within said vessel and positioned such that hot gas flows through said filter elements, each of said filter elements having a porous body; and a catalytic layer on surfaces within the porous body, wherein the catalytic layer comprises: a perovskite mixed catalyst of the composition ABO3; wherein A includes one of an alkali, alkaline earth, rare earth, and lanthanide elements; and wherein B includes an element from one of groups IB, IVB, VB, VIB, VIIB, and VIII. 6. The hot gas filtration apparatus of claim 5, wherein A includes one of lanthanum, strontium, and a mixture of lanthanum and strontium; andwherein B includes one of cobalt, nickel, copper, and manganese. 7. A hot gas filtration apparatus comprising:a vessel; a plurality of filter elements mounted within said vessel and positioned such that hot gas flows through said filter elements, each of said filter elements having a porous body; and a catalytic layer on surfaces within the porous body, wherein the catalytic layer comprises: a perovskite structure of the form [(A11+xA2x)B11?yMey)O3]; wherein A1, A2, and B1 each comprises a metal; and wherein Me includes one of Ru, Os, Rh, Ir, Pd, and Pt. 8. A hot gas filtration apparatus comprising:a vessel; a plurality of filter elements mounted within said vessel and positioned such that hot gas flows through said filter elements, each of said filter elements having a porous body; and a catalytic layer on surfaces within the porous body, wherein the catalytic layer comprises: a perovskite structure of the form (A1)m(A2)n(B1)p (B2)qO3; wherein A1 includes a rare earth element; wherein A2 includes one of Sr, Ba, and Pb; wherein B1 includes one of Ni, Co, Fe, Zn, Cu, and Mn; and wherein B2 includes one of Ru, Os, Ir, Pt, Ti, Mo, W, Nb, Mn, Ta, and Sb. 9. A hot gas filtration apparatus comprising:a vessel; a plurality of filter elements mounted within said vessel and positioned such that hot gas flows through said filter elements, each of said filter elements having a porous body; and a catalytic layer on surfaces within the porous body, wherein the catalytic layer comprises: a zeolite of the form (A)[(B)O2)nxH2O)]; wherein A includes one of Na2, K2, Ca, and Ba; and wherein B includes one of Al and Si. 10. A hot gas filtration apparatus comprising:a vessel; a plurality of filter elements mounted within said vessel and positioned such that hot gas flows through said filter elements, each of said filter elements having a porous body; and a catalytic layer on surfaces within the porous body, wherein the catalytic layer comprises a spinel of the form (A)(Al)Ox, and wherein A includes one of Mg, Fe, Zn, and Mn.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.