CATALYTIC DEVICE FOR ELIMINATING NITROGEN OXIDES, CARBON MONOXIDE AND/OR RESIDUAL HYDROCARBONS CONTAINED IN EXHAUST GASES

摘要

A catalytic device used for eliminating nitrogen oxides, carbon monoxide and residual hydrocarbons contained in exhaust gases comprises metal phthalocyanines and a carrier. The phthalocyanines are deposited on the carrier or introduced therein, and the system comprised of the carrier and the phthalocyanines is treated at temperatures higher than 120C with nitrogen oxides and/or mixtures of nitrogen oxide and carbon monoxide and/or oxygen and/or mixtures of oxygen and carbon monoxide or with nitrating or oxidizing solutions. Instead of being activated by nitrating or oxidizing gases or solutions, the system may also be activated by intimately mixing metal oxides and metal phthalocyanines on and in a carrier.