公开(公告)号：TR9902030A2

公开(公告)日：2000-03-21

申请号：TR9902030

申请日：1999-08-19

Applicant: DEGUSSA

Inventor： FOERSTER DR MARTIN ,  PIROTH JOSEF ,  SCHLACHTER DR ULRICH ,  DOMESLE DR RAINER ,  KRAMPE DR WILLI

IPC: B05D7/24 ,  B01J37/02 ,  F01N3/10 ,  B01J23/38

CPC classification number: B01J37/0215

公开(公告)号：TR199902030A2

公开(公告)日：2000-03-21

申请号：TR9902030

申请日：1999-08-19

Applicant: DEGUSSA

Inventor： FOERSTER DR MARTIN ,  PIROTH JOSEF ,  SCHLACHTER DR ULRICH ,  DOMESLE DR RAINER ,  KRAMPE DR WILLI

IPC: B01J37/02 ,  F01N3/10 ,  B05D7/24 ,  B01J23/38

Abstract: The coating dispersion is sucked through the flow channels of a monolithic catalyst support at a rate of 0.1-1 m/s. Excess dispersion is removed from the channels by applying a suction impulse from below. Extraction air is sucked at a rate of 40-1 m/s through the channels and the excess coating dispersion removed from the air stream is removed from the air stream within a time from less than 100 ms after leaving the catalyst support. Process for coating the flow channels of a monolithic cylindrical catalyst support with a coating dispersion comprises vertically directing the cylindrical axis, charging a predetermined amount of dispersion from a storage vessel to the upper front surface of the support, sucking the dispersion through the flow channels, removing excess dispersion from the channels, returning the excess dispersion to the storage vessel and fixing the dispersion by calcining. The coating dispersion is sucked through the flow channels of a monolithic catalyst support at a rate of 0.1-1 m/s. Excess dispersion is removed from the channels by applying a suction impulse from below. Extraction air is sucked at a rate of 40-1 m/s through the channels and the excess coating dispersion removed from the air stream is removed from the air stream within a time from less than 100 ms after leaving the catalyst support.