US 11,794,140 B1
Auxiliary filter for enhanced chemical protection
Gregory Peterson, Bel Air, MD (US); Ryan Ballantyne, Columbus, OH (US); Michael Boruch, Fredericksburg, VA (US); William Clark, Fredericksburg, VA (US); Bruce Corso, Fredericksburg, VA (US); William B Feaver, Columbus, OH (US); Nicole Puckace, Darlington, MD (US); Jeffery Stephen Hoene, Churchville, MD (US); Joseph Hunt, King George, VA (US); Neil Kennihan, Dahlgre, VA (US); Craig LaMoy, King George, VA (US); Robert Kinter, Waldorf, MD (US); Michael J Knapke, Plain City, OH (US); Mark Noltimier, Columbus, OH (US); Michael Pompeii, Fredericksburg, VA (US); Chris Ritchey, Bel Air, MD (US); Joseph A Rossin, Columbus, OH (US); Rachel L Rossin, Ashville, OH (US); and Richard Warder, Jr, King George, VA (US)
Assigned to The United States of America as Represented by the Secretary of the Army, Washington, DC (US)
Filed by Combat Capabilities Development Command, Chemical Biological Center, APG, MD (US)
Filed on May 18, 2020, as Appl. No. 16/877,033.
Int. Cl. B01D 46/00 (2022.01); B01D 29/52 (2006.01); B01D 37/02 (2006.01); B01D 46/56 (2022.01); C08L 67/06 (2006.01)
CPC B01D 46/0036 (2013.01) [B01D 29/52 (2013.01); B01D 37/025 (2013.01); B01D 46/56 (2022.01); B01D 2251/502 (2013.01); B01D 2251/504 (2013.01); B01D 2251/506 (2013.01); B01D 2251/602 (2013.01); B01D 2251/604 (2013.01); B01D 2252/20431 (2013.01); C08L 67/06 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A process for enhancing the chemical protection capability of a collective protection filter, comprising:
passing a process stream exiting the collective protection filter through an auxiliary filter having filtration media comprising: an ammonia removal media; an oxidizing media; and a methyl bromide removal media,
wherein the ammonia removal media, the oxidizing media, and the methyl bromide removal media are segregated within said filtration media; and
wherein said ammonia removal media is located at an inlet side of the filtration media, said oxidizing media is located at a middle of the filtration media, and said methyl bromide removal media is located at an outlet side of the filtration media.