SCRÓ��ˇ�П��ٜy��x��x�ͷ��

��r�g��2013-01-09 15:15 ��Դ�� : ��x��3211

ժҪ��վ偠t�x��Դ߻�߀ԭ��SCRÓ��ˇ��,��y��Ĝ�(zh��n)�_�Ԍ�߀ԭ��Ӌ��ҪӰ푡��B�˟��y��õĲʽ�͟ጧ(d��o)ʽ��Ӌ�Ĺ��ԭ��,��˸��c,��x�͕r��(y��ng)ע��»��c��ĥ�p�Ľ��h��

��

�x��Դ߻�߀ԭ��SCR(selective catalytic reduction��Ŀǰ��(n��i)��ڴ��ȼú�C(j��)�M�ϏV��õ�Ó��,��SCR��ԭ��ǰ�NH2��߀ԭ��,��(j��ng)��Ň��럟��c��ֻ�Ϻ�,��M(j��n)��߻��Ӵ�,��ڴ߻��,��Nox߀ԭ��N2��H2O��

��SCR��ˇ��,��Ӌ�㇊��NH2��,��회��r�z�y��偠t��L(f��ng)��e�ܴ�,��L(f��ng)��y��ֱ�Ӝy��,��ͨ��ǜy��(n��i)�ğ��٣��ß��ٳ��ԟ��e,��ß��,��ǣ��վ偠t��͟��L(f��ng)��ܲ��Ӱ�,��һ��ֱ�α��^��,��L(f��ng)��ٜy��^��y��ٜy��̎,��Sؓ(f��)��׃��,��к��m��ߣ��x��,��ĥ�p�F(xi��n)��(y��n)��,��ˣ��վ偠t��͟��L(f��ng)��ٜy��x��x�ͷǳ��Ҫ,��

һ,��ß��ٜy��ăx��

��ٜy��x��N��࣬Ŀǰ,��늏S��L(f��ng)�ٶȜy��ăx��Ҫ�вʽ�͟ጧ(d��o)ʽ��Ӌ�ɷN,��

1.1�ʽ��Ӌ

�ʽ�y��ٜy��ʹ��ƾú͑�(y��ng)�ÏV��һ�N�y��(j��)��Ŭ��,��ͨ�^�y��w��^��Юa(ch��n)��Ĳ��y��ٻ��,��

�ʽ��Ӌͨ�^�y��c�o��֮��Ӊ��ý��|(zh��)��,��

�m��ڜy��w��ٵĲʽ��Ӌһ��Ƥ�й�,��ţ�ͺ��Ӌ��N��@��N��Ӌԭ��ͬ,��(g��u)��,��ȡ��(d��o)��͉��y��׃��ȣ��(g��u)��,��

��ͨƤ�й��ɲ��ܵ��һ��A��̽�y�ܽM�ɣ��y��Y(ji��)��ͨ��һ��c��ٶ�,��

��ţ��Ӌ�ַQƽ��Ƥ�й�,��ȡ��ʽ��cȡ��,��y��Y(ji��)��ȡ��c��ƽ��ٶȡ��ţ��Ӌ�ھ��,��b��Ժ��^��ͨƤ�й��,��ڸ߷ۉm��У��ţ��Ӌȡ��׶��,��Ӱ��䷀(w��n)��\��,��

��Ӌ��ȡ��Ҳ�Ƕ��cȡ��ͣ��O(sh��)��ӏ��^��,��ȡ��λ��˸��M(j��n),��ھ��ȡ���}�Ӻͷ��·��M(j��n)һ��ĸ��,��

��]��SCR�^(q��)�򟟚�ĸߜ�,��߉m��漰��ӵ��c,��ͨƤ�й��Ӌ��m��x��,��x�ð�ţ�ͺ��Ӌ�r��(y��ng)Ҫ��в��з�ĥ��,��͸ߜص��,��в��(y��ng)��£��b��b��,��

1.2�ጧ(d��o)ʽ��w��Ӌ

�ጧ(d��o)ʽ��w��Ӌ��ß��(d��o)ԭ��O(sh��)Ӌ��,��е��w�c��Դ֮�g��Q��P(gu��n)ϵ��y��ăx��

��@�Nԭ��ğ�ʽ��Ӌ,��͵Ă��Ԫ��ɂ��ضȂ��,��@�ɂ��ضȂ��քe��ښ��еăɽ��ټ�(x��)�܃�(n��i)��һ��ضȂ��y�Ú��ض�T,��һ��(x��)�ܽ�(j��ng)��ʺ㶨��늟�z�ӟ�,��ض�Tv��ښ��ضȣ��Қ��w�oֹ�rTv��,��S��|(zh��)��pU��,��߸��(d��o)�ض��½�,��y�ÜضȲ� ��T��Tv-T,��@�N��Q��“��ز”��_(d��)ʽ��ʾ,��

��֡�T�㶨,��ƼӟṦ��S��Ӷ��ӣ��t�@�N��Q��“�㹦�ʷ�”,��

��w�ɷֺ͚��w�ضȵ�׃��Ӱ푚��w��|(zh��),��ʹ��ϵ��(sh��)A��B�l(f��)��׃��,��Ӱ표y��Ĝ�(zh��n)�_�ԡ��SCR��,�� N2��CO2ռ�˽�90��w�e,��\�Еr�Ĝض�׃��100��ң��w��|(zh��)Ӱ푺�С,��

�c�ʽ��Ӌ��,��ጧ(d��o)ʽ��Ӌ��»�,��ĥ�p��b��һ��ă�(y��u)��,��С��M�ɺ��,��ϸ��ʵ͵��c,��҂��ֿɲ��͸ߜء��ĥ�p�Ĳ��,��m��ڸߜ�,��߷ۉm��SCR��С�

��,��y��λ�õ��xȡ

�oՓ�ǲʽ��Ӌ߀�ǟጧ(d��o)ʽ��Ӌ,��ǌ��ĳ��c��ĳ��϶��c��ٜy��,��վ偠t�ğ��,��ֱ�ζ�,��r��(f��)�s,��ڲ�ͬ��ؓ(f��)��r�£��r׃��,��ε��x�Â��e�c��ȫ��ƽ��,��t�`��,��y��λ�õ��xȡ��@�÷ǳ��Ҫ,��

��SCR��ˇ�У��(j��)��ľ��r,��һ��԰�SCR�^(q��)�򣨏�ʡú��՚��A(y��)��ڣ��֞释��ǰ,��SCR��(y��ng)��ڡ�SCR��(y��ng)��,��SCR��(y��ng)��՚��A(y��)��Ă��,��

�򇊰��ǰ�ğ��δ��(j��ng)��r���ڇ��SCR��(y��ng)��ڶ�,��ͬ��SCR��g(sh��)��̶�Ҫ��ͬ,��(sh��)SCR��g(sh��)��@�Ο��ٶ�ƫ��15��ԃ�(n��i),��SCR��(y��ng)��(n��i)��һ�㶼Ҫ��ǳ��,��SCR��(y��ng)��ٶ�ƫ��(j��)Ó��Ч�ʵĲ�ͬ��һ��5%-15��֮�g,��⽛(j��ng)�^�߻��Ӻ�,��򡣽�(j��ng)�^SCR��(y��ng)��,��SCR�Ļ��W(xu��)��(y��ng)Ӱ푴��pС,��һ��v��@��r�^ǰ�ɶβ�,��ԓ��̎��SCRĩ��,��ٜy��˰��b��ԓ��ϡ�

�C��,��SCR�^(q��)��(n��i),��ٜy��c��(y��ng)�x��ڇ��SCR��(y��ng)��ڻ�SCR��(y��ng)��(n��i)��SCR��(y��ng)��,��(y��ng)��(y��u)��x��ԓ��,��ˇ��ԭ��ԭ��ܰ��y�c��ԓ�Σ�Ҳ��x��ڷ��(y��ng)��(n��i)�ĵ�һ�ӻ�ڶ��Ӵ߻��Ϸ�,��(y��ng)ע�ⴵ��ϵ�y(t��ng)��֧��Ӱ�,��

��Y(ji��)��Z

�ʽ��Ӌ�а�ţ��Ӌ��Ӌ��cȡ��,��ጧ(d��o)ʽһ��c�y��,��x�͕r��(y��ng)ע��в��ķ�ĥ��,��»Ҽ��͸ߜ�,��ʽ��Ӌ��(y��ng)��b��b�á�ͬ�r,��y��λ�õ��_�x��Ǳ��C�y��(zh��n)�_��P(gu��n)�I��֮һ,��ᘌ�SCR��ˇ��y��(y��ng)�M��x��ڇ��SCR��(y��ng)��֮�g�ğ��,��

����D(zhu��n)�d��ǳ��ڂ��f��Ϣ֮Ŀ��,��Ё�Դ��(bi��o)ע�e�`��ַ��ĺϷ��(qu��n)�棬Ո��߳֙�(qu��n)��C��c��W(w��ng)(li��n)ϵ,��҂��r��,��h��x�x��