MULTILAYERED MIXED BED FILTER FOR THE REMOVAL OF TOXIC GASES FROM AIR STREAMS AND METHODS THEREOF

To achieve the removal of a broad spectrum of chemical hazards, multiple layers of impregnated activated carbon and nanocrystalline materials are incorporated into the adsorbent bed. For optimum performance using the least amount of material, a two-layer configuration is used. The top layer consists...

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Bibliographische Detailangaben
Hauptverfasser:	KOPER, OLGA B, MATYJASZCZYK, MACIEJ STANISLAW, AIKENS, CHRISTOPHER L, KELLER, MARTIN, WINECKI, SLAWOMIR, QUIRING, AMY ELIZABETH
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES NANOTECHNOLOGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	To achieve the removal of a broad spectrum of chemical hazards, multiple layers of impregnated activated carbon and nanocrystalline materials are incorporated into the adsorbent bed. For optimum performance using the least amount of material, a two-layer configuration is used. The top layer consists of a homogeneous mixture of an MgO/CaO based nanocrystalline material (e.g., Mg/Ca) and Kureha or other petroleum pitch-based bead shaped activated carbon impregnated treated with phosphoric acid. The bottom layer is comprised of a single layer of Calgon URC carbon. The volume ratios of the components are 9:5:11 Mg/Ca, phosphoric acid treated Kureha carbon, and URC, respectively. The new configuration leads to a 30% reduction in size of the existing NIOSH CBRN CAP 1 cartridge. Other embodiments are disclosed and claimed.