Auxiliary filter for enhanced chemical protection

A process and device for enhancing the chemical protection capability of a collective protection filter whereby the process stream exiting the collective protection filter is passed through an Auxiliary Filter. The auxiliary filter containing an ammonia removal media, such as zirconium hydroxide imp...

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Main Authors Clark, William, Boruch, Michael, Rossin, Rachel L, Warder, Jr, Richard, LaMoy, Craig, Puckace, Nicole, Ritchey, Chris, Peterson, Gregory, Corso, Bruce, Noltimier, Mark, Hoene, Jeffery Stephen, Kennihan, Neil, Rossin, Joseph A, Pompeii, Michael, Ballantyne, Ryan, Knapke, Michael J, Kinter, Robert, Feaver, William B, Hunt, Joseph
Format Patent
LanguageEnglish
Published 24.10.2023
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
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Summary:A process and device for enhancing the chemical protection capability of a collective protection filter whereby the process stream exiting the collective protection filter is passed through an Auxiliary Filter. The auxiliary filter containing an ammonia removal media, such as zirconium hydroxide impregnated with zinc chloride (ZnCl2/Zr(OH)4), an oxidizing media, preferably zirconium hydroxide impregnated with potassium permanganate (KMnO4/Zr(OH)4), and a methyl bromide removal media, preferably activated carbon impregnated with triethylenediamine (TEDA/carbon). The auxiliary filter and process are configured to remove toxic industrial chemicals including NH3, NOx (mixtures of NO and NO2) and CH2O, and CH3Br.
Bibliography:Application Number: US202016877033