Eliminación simultánea de hollín y óxidos de nitrógeno de efluentes gaseosos de motores diesel

PISARELLO, M.L.; SAUX, C.; PERALTA, M.A.; QUERINI,C.A.; MIRÓ,E.E.

REVISTA TECNOLOGICA

elsevier

Año: 2000 p. 137 - 143

1517-8048

The objective of this project is to develop catalytic materials to reduce soot and NOx emissions from diesel engines. Catalysts containing potassium, cobalt and barium supported on ceria, magnesia and lanthanum oxide are studied. Catalytic performance is correlated with physicochemical properties. The role of each support in the reaction mechanism is studied. The contact between the soot and the catalyst was analyzed by direct impregnation of the active function on the soot. It was found that although the contact is not as good in the case of the mechanical mixture bewteen the soot and the catalyst, the possibility of a proper catalyst design overpass the poor contact, being the activity of the best catalyst physically mixed with the soot, higher than direct impregnation of the active function on the soot.