Title:
AMMONIA DECOMPOSITION APPARATUS
Document Type and Number:
Japanese Patent JP3532256
Kind Code:
B2
Abstract:
PURPOSE: To efficiently decompose ammonia while enabling safe treatment at the time of the mixing with oxygen by combining an ammonia removing cylinder with a decomposition cylinder equipped with a catalyst such as Ni or the like generating heat upon the contact with oxygen and a heat generation detection means.
CONSTITUTION: The decomposition cylinder 8 connected to an ammonia gas supply pipe 10 and packed with ammonia gas decomposition catalysts 4, 5 and having a heater 3 arranged thereto, the ammonia removing cylinder 14 connected to the outlet part of the decomposition cylinder 8 and a bypass pipe 16 branched from the supply pipe 10 and connected to the ammonia removing cylinder 14 are provided. The decomposition cylinder 8 is packed with the catalyst 4 generating heat in the presence of oxygen among the ammonia decomposition catalysts on at least the upstream side thereof and a thermometer 6 detecting generated heat is attached to the packed part of the catalyst 4. When generation of heat is detected at the time of the mixing of oxygen with the ammonia gas, the supply of the ammonia gas to the decomposition cylinder 8 is stopped and, at the same time, the supply pipe 10 is changed over to the bypass pipe 16 to supply the ammonia gas to the ammonia removing cylinder 14.
Inventors:
Kitahara, Koichi
Otsuka, Kenji
Takemasa, Noboru
Otsuka, Kenji
Takemasa, Noboru
Application Number:
JP22410394A
Publication Date:
May 31, 2004
Filing Date:
August 25, 1994
Export Citation:
Assignee:
JAPAN PIONICS CO LTD
International Classes:
B01D53/86; B01J23/42; B01J23/44; B01J23/46; B01J23/755; (IPC1-7): B01D53/86; B01J23/42; B01J23/44; B01J23/46; B01J23/755
Previous Patent: INPUT DATA DISPLAY METHOD IN INTERACTIVE NUMERICAL CONTROL SYSTEM
Next Patent: HYSTERESIS VALVE DEVICE
Next Patent: HYSTERESIS VALVE DEVICE