公开(公告)号：US4003978A

公开(公告)日：1977-01-18

申请号：US515888

申请日：1974-10-18

申请人： Tatsuo Shiraishi ,  Shinkichi Shimizu ,  Hiroshi Ichihashi ,  Tadashi Shindo ,  Fumiyoshi Kato

发明人： Tatsuo Shiraishi ,  Shinkichi Shimizu ,  Hiroshi Ichihashi ,  Tadashi Shindo ,  Fumiyoshi Kato

IPC分类号： B01D53/86 ,  B01J23/26 ,  B01J23/30 ,  B01J23/86 ,  C01C1/12 ,  C01B21/02

CPC分类号： B01J23/86 ,  B01D53/8634 ,  B01J23/26 ,  B01J23/30 ,  C01C1/12 ,  Y02P20/52

摘要： A method for treating ammonia-containing gases for removing ammonia therefrom, which comprises contacting the ammonia-containing gases with a metal oxide catalyst having the following formula:Cr.sub.x A.sub.y O.sub.zwherein Cr is chromium; A is at least one element selected from the group consisting of tin, antimony, vanadium, cobalt, silver, zinc, nickel, titanium, molybdenum, tungsten, sulfur, phosphorus, boron, germanium and zirconium; x is a numeral of 4 to 12; y is a numeral of 0.2 to 8 and z is a numeral of 6.2 to 42, in a vapor phase at a temperature of from 200.degree. to 500.degree. C in the presence of molecular oxygen, and thereby the ammonia is oxidized to harmless nitrogen gas.

摘要翻译： 一种用于处理含氨气体以从其中除去氨的方法，其包括使含氨气体与具有下式的金属氧化物催化剂接触：