Catalysed wallflow filter substrate monolith obtainable by coating a honeycomb monolith substrate comprising a plurality of channels with a liquid comprising a catalyst component comprises the steps of: (i) holding a honeycomb monolith substrate substantially vertically; (ii) introducing a pre-determined volume of the liquid into the substrate via open ends of the channels at a lower end of the substrate; (iii) sealingly retaining the introduced liquid within the substrate; (iv) inverting the substrate containing the retained liquid; and (v) applying a vacuum to open ends of the channels of the substrate at the inverted, lower end of the substrate to draw the liquid along the channels of the substrate.
申请公布号
EP2659976(A1)
申请公布日期
2013.11.06
申请号
EP20130174041
申请日期
2011.01.04
申请人
JOHNSON MATTHEY PUBLIC LIMITED COMPANY
发明人
CHANDLER, GUY RICHARD;FLANAGAN, KEITH ANTHONY;PHILLIPS, PAUL RICHARD;SCHOFIELD, PAUL;SPENCER, MICHAEL LEONARD WILLIAM;STRUTT, HEDLEY MICHAEL