| 摘要 |
PURPOSE:To efficiently decompose ammonia and to convert the same to nitrogen and hydrogen even at a relatively low temp. by incorporating nickel and a metal or compd. among copper group elements, chromium group elements and iron group elements as the 2nd component. CONSTITUTION:This catalyst contains the nickel, such as nickel chloride and nickel nitrate and >=1 kinds of the metals of the copper group elements, such as copper and silver, the chromium group elements, such as chromium and molybdenum, and the iron group elements, such as iron and cobalt or the compds., such as hydroxide and carbonate, thereof. The ammonia recovered from coke furnace gases is efficiently decomposed and is converted to nitrogen and hydrogen even at the low temp. of about <=600 deg.C when the ammonia is brought into contact with the catalyst obtd. in such a manner. |
