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US 2023/0321602 A1Published application
Catalytic filters for hydrogenation and emissions control
AssigneeUnifrax I LLC
InventorsMaurice BELISLE, Kevin E. SITERS
Life of this patent
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Abstract
Catalytic filters are usable in hydrogenation and emissions control processes. The catalytic filters include an open inlet into a hollow body and a closed end thereby forcing fluid or gas through a porous catalytic layer of the filter. The catalytic layer includes inorganic fibers and a catalyst disposed on or incorporated into the fibers.
Claims20
A reactor comprising:
- a housing;
- one or more catalyst beds disposed within the housing, each catalyst bed comprising:
- a plurality of hollow filters each comprising an open end, a closed end opposite the open end, and a porous catalytic layer between the open end and the closed end;
- wherein the porous catalytic layer comprises inorganic fibers and a catalyst.
1 more element
A method comprising:
- affixing a first hollow filter to a mounting plate, wherein the first hollow filter comprises:
- a first open end;
- a second open end opposite the first open end,
- a first porous catalytic layer disposed between the first open end and the second open end, the first porous catalytic layer comprising first inorganic fibers and a first catalyst;
- and
- a flange extending radially outward from the first open end;
- wherein affixing the first hollow filter comprises securing the flange to the mounting plate;
- and
- affixing a second hollow filter to the first hollow filter to form a filter unit, wherein the second hollow filter comprises:
- a third open end;
- a closed end opposite the third open end, the closed end being nonporous;
- a second porous catalytic layer disposed between the third open end and the closed end, the second porous catalytic layer comprising second inorganic fibers that are the same as or different from the first inorganic fibers and a second catalyst that is the same as or different from the first catalyst;
- and
- a second flange extending radially outward from the third open end;
- wherein affixing the second hollow filter comprises securing the second flange to the second open end of the first hollow filter.
12 more elements
An emissions control module comprising:
- a housing;
- and
- a filter disposed within the housing;
- wherein the filter comprises a porous filter layer pleated to form at least one open end and at least one closed end opposite the open end;
- and
- wherein the porous filter layer comprises inorganic fibers and a catalyst.
3 more elements
Dependencies are inferred from the claim text.