Scaling-up of the catalytic stacked wire mesh filters for the abatement of diesel soot

GODOY, MARÍA LAURA; MILT, VIVIANA G.; MIRÓ, EDUARDO E.; BANÚS, EZEQUIEL D.

CATALYSIS TODAY

ELSEVIER SCIENCE BV

Año: 2022

0920-5861

This workis based on the development of a stacked AISI 304 stainless steel wire meshesstructure with oxidizing and filtering capacity, where the Co and Ce oxidecatalysts were deposited on the surface of the metallic fibres as a novelalternative to the current DOC ? DPF system. The system was scaled upencouraged by the results obtained at lab scale, going from 16 mm filterdiameter to 130 mm. The coated meshes were stacked inside a metallic case inorder to conform a catalysed diesel particulate filter (CDPF). A Fiat Palio dieselengine mounted on a test bench was used to evaluate the filtering capacity ofthe scaled-up wire mesh cartridge. The systems developed were able to reduceparticulate matter emitted by diesel engines below limits restrained by laws.The good activity, pressure drop, robustness, versatility and low cost of thedesigned structures, along with the good adhesion of the catalytic coating,makes them very promising for the development of catalytic filters.