Title:
REGENERATION OF TITANIA CATALYST
Document Type and Number:
Japanese Patent JPS596945
Kind Code:
A
Abstract:
PURPOSE: To regenerate a deactivated titania catalyst, by a method wherein the deactivated catalyst used in catalytic reducing reaction of nitrogen oxide due to ammonia and exposed to a high temp. gas is impregnated with a W-containing solution to support W in a specific contained ratio.
CONSTITUTION: A catalyst which is a titania catalyst used in catalytic reducing reaction of nitrogen oxide due to ammonia and deactivated by exposing the same to a high temp. gas at 800°C or more is immersed in a W-containing solution such as a monoethanolamine solution of WO3 to be impregnated therewith and the impregnated catalyst is taken out and dried to support W in an amount 0.37W6.6pts./TiO2 100pts. as WO3 on the basis of a wt. by the catalyst.
Inventors:
NAGAI KENICHI
HAMA TOSHIO
TAKAI JIYUNICHI
HAMA TOSHIO
TAKAI JIYUNICHI
Application Number:
JP11491982A
Publication Date:
January 14, 1984
Filing Date:
July 01, 1982
Export Citation:
Assignee:
HITACHI SHIPBUILDING ENG CO
International Classes:
B01J23/30; B01J21/20; B01J38/48; (IPC1-7): B01J21/20; B01J23/30
Domestic Patent References:
| JPS54142187A | 1979-11-06 | |||
| JPS5535981A | 1980-03-13 | |||
| JPS5410294A | 1979-01-25 |
Attorney, Agent or Firm:
Eisuke Kishimoto
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