US 6,982,060 B2
Chemical decontamination liquid decomposing system having catalyst tower and catalyst tower therefor
Motoaki Sakashita, Hitachi (Japan); Katsuo Yokota, Hitachi (Japan); Yasushi Kobayashi, Tokai (Japan); and Kazumi Anazawa, Hitachi (Japan)
Assigned to Hitachi, Ltd., Tokyo (Japan); and Hitachi Engineering Co., Ltd., Ibaraki (Japan)
Filed on Jun. 14, 2004, as Appl. No. 10/865,840.
Application 10/865840 is a continuation of application No. 09/791693, filed on Feb. 26, 2001, granted, now 6,767,519.
Claims priority of application No. 2000-077767 (JP), filed on Mar. 15, 2000.
Prior Publication US 2004/0234413 A1, Nov. 25, 2004
Int. Cl. B01J 8/02 (2006.01)
U.S. Cl. 422—1 9 Claims
OG exemplary drawing
 
1. A method of decomposing a chemical decontamination liquid in which said chemical decontamination liquid is decomposed by a catalyst, wherein said method is comprised of the processes of:
charging said catalyst through a catalyst charging port connected to an inlet mesh filter;
making said chemical decontamination liquid flow in from the bottom portion of said catalyst through said inlet mesh filter;
making said chemical decontamination liquid, which has passed said catalyst, flow out of the upper portion of said catalyst through an outlet mesh filter; and
imposing a load on said catalyst through said catalyst charging port in a direction top to bottom thereof to suppress convection of said catalyst.