申请人:Agency of Industrial Science and Technology
公开号:US05227145A1
公开(公告)日:1993-07-13
A process for removing nitrogen oxides from an exhaust gas by bringing the exhaust gas containing nitrogen oxides into contact with at least one catalyst selected from a polyvalent metal phosphate, a polyvalent metal sulfate or an aluminate of a transition metal of the 4th period of the Periodic Table in an oxidizing atmosphere containing excess oxygen and in the presence of a hydrocarbon or an oxygen containing organic compound. There is also disclosed a process for removing nitrogen oxides from an exhaust gas which comprises bringing the exhaust gas into contact with the above catalyst and then with an oxidation catalyst.
一种从废气中去除氮氧化物的方法,包括将含氮氧化物的废气在含有过量氧气和碳氢化合物或含氧有机化合物的氧化气氛中与至少一种催化剂接触,所述催化剂选自多价金属磷酸盐、多价金属硫酸盐或第四周期元素的过渡金属铝酸盐。还公开了一种从废气中去除氮氧化物的方法,包括将废气与上述催化剂接触,然后再与氧化催化剂接触。