Title:
REGENERATION OF DENITRIFICATION CATALYST
Document Type and Number:
Japanese Patent JPS6038037
Kind Code:
A
Abstract:
PURPOSE: To availavely regenerate a catalyst, by grinding a catalyst, of which the activity is lowered, to form a powder which is, in turn, molded and subsequently baked at a specific temp.
CONSTITUTION: A catalyst which contains titanium oxide and oxide of at least one metal selected from vanadium, tungsten and molybdenum and poisoned through use for the reductive removal of NOx in exhaust gas in the presence of ammonia, is ground by a grinder to obtain a powder with a particle size of which 80wt% or more, pref. 90wt% or more is 30μm or less. A molding aid and water are added to this powder and, after kneading, the kneaded mixture is molded by an extruder, dried and baked at 400W550°C.
Inventors:
INOUE AKIRA
KOBAYASHI MOTONOBU
ONO TETSUTSUGU
KOBAYASHI MOTONOBU
ONO TETSUTSUGU
Application Number:
JP14564483A
Publication Date:
February 27, 1985
Filing Date:
August 11, 1983
Export Citation:
Assignee:
NIPPON CATALYTIC CHEM IND
International Classes:
B01D53/86; B01D53/96; B01J23/90; B01J38/00; B01D53/94; B01J38/02; (IPC1-7): B01D53/36; B01J23/90; B01J38/02
Attorney, Agent or Firm:
Takeo Yamaguchi