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1. (WO2018102069) SURFACE-MODIFIED CARBON AND SORBENTS FOR IMPROVED EFFICIENCY IN REMOVAL OF GASEOUS CONTAMINANTS

Pub. No.:    WO/2018/102069    International Application No.:    PCT/US2017/059902
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Sat Nov 04 00:59:59 CET 2017
IPC: B01D 53/34
B01J 20/32
B01J 21/18
B01J 23/34
Applicants: COLUMBUS INDUSTRIES, INC.
Inventors: GAUR, Vivekanand
PONTIOUS, Eric
Title: SURFACE-MODIFIED CARBON AND SORBENTS FOR IMPROVED EFFICIENCY IN REMOVAL OF GASEOUS CONTAMINANTS
Abstract:
A material, and filters and other structures exposed to flowing gas that have the material therein, which removes VOCs, such as formaldehyde, from the gas. The material is a porous sorbent impregnated by a metal oxide, such as manganese oxide (MnOx) nano particles. The sorbent may be activated carbon, and the manganese oxide may catalyze formaldehyde to water and carbon dioxide while the carbon may adsorb formaldehyde, both mechanisms of which remove the VOC from the air to prevent or reduce inhalation of the same by humans. The material may be combined with an untreated sorbent or sorbent treated with ionic alkaline salts.