Filter assemblies and systems for intake air for fuel cells
First Claim
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1. An air filtration assembly comprising:
- (a) an inlet and an outlet, the inlet configured to receive dirty air into a first filter assembly, and the outlet configured to deliver clean air from the first filter assembly;
(b) a particulate filtration portion constructed and arranged to remove particulate contaminants from the dirty air; and
(c) a chemical filtration portion in a housing arranged to remove chemical contaminants from the dirty air, comprising;
(i) at least two shaped adsorbent articles, each shaped adsorbent article comprising an absorbent material and a binder; and
(ii) a mass of fibrous non-woven material.
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Abstract
A filter assembly for removing particulate contaminants and chemical contaminants from an incoming dirty air stream for a fuel cell. The filter assembly also includes a noise suppression element that reduces sound waves or noise emanating from any equipment, such as a compressor. The filter assembly can include a particulate filter portion for removing physical or particulate contaminants, a chemical filter portion for removing chemical contaminants, or can have both portions.
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Citations
23 Claims
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1. An air filtration assembly comprising:
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(a) an inlet and an outlet, the inlet configured to receive dirty air into a first filter assembly, and the outlet configured to deliver clean air from the first filter assembly; (b) a particulate filtration portion constructed and arranged to remove particulate contaminants from the dirty air; and (c) a chemical filtration portion in a housing arranged to remove chemical contaminants from the dirty air, comprising; (i) at least two shaped adsorbent articles, each shaped adsorbent article comprising an absorbent material and a binder; and (ii) a mass of fibrous non-woven material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 22)
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10. An air filtration assembly comprising:
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(a) an inlet and an outlet, the inlet configured to receive dirty air into a first filter assembly, and the outlet configured to deliver clean air from the first filter assembly; (b) a particulate filtration portion constructed and arranged to remove particulate contaminants from the dirty air; and (c) a chemical filtration portion arranged to remove chemical contaminants from the dirty air, comprising at least four shaped adsorbent articles, each shaped adsorbent article comprising an absorbent material and a binder. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 23)
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18. A method of filtering an air stream, comprising:
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(a) passing a dirty air stream to a filtration assembly via an inlet, the filtration assembly comprising a particulate filtration portion and a chemical filtration portion; (b) passing the dirty air stream through the particulate filtration portion to remove particulate contaminants from the dirty air stream; and (c) passing the dirty air stream through the chemical filtration portion to remove chemical contaminants from the dirty air, the chemical filtration portion comprising at least two shaped adsorbent articles and a mass of fibrous non-woven material, each shaped adsorbent article comprising an absorbent material and a binder; and (d) obtaining a clean air stream from the filtration assembly via an outlet. - View Dependent Claims (19, 20, 21)
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Specification