PROCEDIMENTO PER LA PRODUZIONE DI MATERIALI CATALIZZATORI A BASE DI PT-ZEOLITE E IMPIEGO DI QUESTO MATERIALE.

摘要

The invention relates to a process for preparing a Pt/zeolite catalyst material, the material itself, and the use of the material in removing carbon monoxide from a gas. In a preferred embodiment, the invention relates to a process for preparing a Pt/zeolite catalyst material for the catalytic removal of CO in H2-rich gas by means of selective CO oxidation and the use of such a catalyst material. The catalyst materials of the invention can be prepared by employing Pt(NH3)4Cl2.H2O and a zeolite material. The resulting material can be used for the catalytic removal of CO from an H2-rich outlet gas mixture from a methanol reforming reactor. The compositions and methods to produce catalytic materials result in products with high and prolonged catalyst activity. In particular, the methods and compositions of the invention can be used in removing CO from the hydrogen fed to fuel cells in electric vehicles having stored methanol fuel.