The collector catalu00ecco to convert NOx in a gas stream of exhaustion; collector catalu00ectico effective for conversion of NOx in a gas stream of exhaustion; and method of treating gas stream D AndaFrom exhaustion containing NOx to reduce the NOx content of the current

摘要

"Catalu00ectico collector to convert in ~ x ~ in a stream of exhaust gas; collector catalu00ectico effective for conversion of ~ x ~ in a stream of exhaust gas, and method of treatment of a runNTE of exhaust gas containing ~ x ~ to reduce the content of ~ x ~ of the current ".This is a catalytic effective collector for the conversion of ~ x ~ in a stream of exhaust gas, which is inert to the reaction at high temperature with the basic oxygenated compounds of lithium.Sodium or potassium.The catalytic collector may be substantially free of silica components and may include a material collector contains a catalytic refractory oxide support, e.g. alumina,Having dispersed on a catalytic component, as a catalytic component of metal of the platinum group.And a sorbent in ~ x ~ comprised of one or more among the basic oxygenated compounds.The catalytic material is coated on a collector element carreador appropriate, such as one made of stainless steel, titanium, alumina, titanium, zirconia or cordierita leached by silica.A method of treatment of a gas stream containing ~ x ~ involves the maintenance of the gas stream into alternating periods between the conditions (1) and (2) rich or poor contact of the stoichiometric andThe gas stream with the catalytic collector according to the conditions under which the ~ x ~ is adsorbed during periods of poor operation and released and reduced to nitrogen during periods of operau00e7u00e3The rich.