SCRÓ��g��ɫ��ИI(y��)��÷��

��r�g��2022-09-06 14:14 ��Դ��K��h(hu��n)��Ƽ��޹�˾ ��: ��x��4773

��v�h(hu��n)��W(w��ng)Ӎ��1 ��ɫ��ИI(y��)��Ⱦ��ŷŬF(xi��n)��

1.1 ��ɫ��ИI(y��)�l(f��)չ�F(xi��n)�څ��

��(j��)��(j��ng)��[1]�y(t��ng)Ӌ��҇��ɫ��ИI(y��)�漰��ٹ�Ӌ64�N,��а��ؽ��,��p��١��F��,��Լ�ϡ�н��,��(j��)�Ї��ɫ��ٹ��I(y��)�f(xi��)��ИI(y��)�y(t��ng)Ӌ��b[2]��֪��2016��X�a(ch��n)��,��~�a(ch��n)��,��U�a(ch��n)��քeռ��ИI(y��)��a(ch��n)��74%��11%��7%,��2016��ɫ��ұ��I(y��)��Ӌ1156��,��2017��l(f��)�C��733�ң��~218�ҡ��U�\365��,��늽��X150�ң�,��Ҫ�ֲ��ں��ϡ��V�|,��,��ɽ�|,��ϡ��,��ɽ��,��ġ��F��,��ɹŵȵ؅^(q��),��

�D1 ��ɫ��ٷ��

��ɫ��҇��ߴ󹤘I(y��)��ܴ��֮һ��M��(ji��)�ܽ��ĵ��c�ИI(y��),��҇��ɫ��ٹ��I(y��)��Դ��Ҫ��ڵVɽ,��ұ��ͼӹ��I��Ї��ɫ��ٵV�a(ch��n)�YԴ��c��С�V��,��V��,��ؚ�V�ࡢ��V��,��V��,��һ�V�٣��y�xұ�V��,��x�V��,��ɴ��xұ��L��ˇ��s,��ֱ�ӌ��ܺĸߡ�ˮ�Ĵ�,��Ⱦ��ŷ��,��ͬ�r�S��a(ch��n)Ҏ(gu��)ģ�Ĳ��U��Դ��,��“��U”�ŷſ��߀��,��a(ch��n)�I(y��)��(ji��)�ܜp�ŵ��΄�ʮ��D�ޡ�

1.2 ��ɫ��ИI(y��)��Դ��Ⱦ�F(xi��n)��

��ȫ��NOx�ŷſ��2020��ИI(y��)�ֲ��(sh��)��(j��)��[3],��

��1 2020��ȫ��Դ��ŷ��r

�D2 2020��I(y��)�ИI(y��)��ŷ��r

��ɫ��ИI(y��)�ڃȵ��ИI(y��)��ŷ��_��88.51�f��,��ռ��I(y��)�ŷſ��֮һ��ϡ��~,��X,��U��\�Ĵ��ý��ٮa(ch��n)��ռ��_��96.07%,��Ҫ��Ⱦ�w��~,��X��U,��\�Ĵ�ұ��I��,��

2��ɫ��ИI(y��)��Ⱦ��ŷŘ˜ʼ��

��ɫ��ұ��ИI(y��)��Ⱦ��ŷŘ˜��C��2010��,��ڴ�֮ǰ��(zh��)�С��I(y��)�t�G��Ⱦ��ŷŘ˜ʡ��͡��Ⱦ��C��ŷŘ˜ʡ��ھC��ŷŘ˜�ᘌ��Բ��,��Ⱦ��Ŀ��ȱʧ,��ɫ��ұ��ИI(y��)��Ⱦ��g�ѽ�(j��ng)��@��I(y��)�I��2012��8��,��Ժ�l(f��)��(ji��)�ܜp��“ʮ��”Ҏ(gu��)��,��Ҏ(gu��)��“ʮһ��”��(ji��)��,��COD��SO2�@��s��ָ�˵Ļ��A��,��“ʮ��”��g��˵��Ͱ��@�ɂ��Ⱦ��p�ŵ�ָ�ˣ��γ��傀�s��Ŀ��,��

��~,��U��X,��V,��C�ȹ��I(y��)��Ⱦ��ŷŘ˜ʵ��^��(zh��)�У��ɫ�ИI(y��)��ʽ��_�˭h(hu��n)��Ļ,��Ŀǰ,��҇�ᘌ��ɫ��ИI(y��)��l(f��)��ʩ11��Ⱦ��ŷŘ˜ʣ��ИI(y��)��Ⱦ��ŷŘ˜ʹ�Ӌ9�,��ˮ�C��ŷŘ˜�2�,��

��2��ɫ��ИI(y��)NOx�ŷŘ˜�

3 ��ɫ��ИI(y��)��c��Ƽ��g

3.1 ��ɫ��ٹ��I(y��)��c

��ɫ��ұ��Ⱦ��c��wұ��ˇ��P��Ⱦ��Ҫ�П��m,��,����ֺ��ؽ��,��,��ɫ��ұ��@��t�G��ڲ��,��@,��l(f��)��С��Ŀǰ��~�Uұ��Ŀ,��ˇ��H�H100000 Nm3/h,��С��ϡ�F��Ŀ��С��1000 Nm3/h��Ⱦ��ȘO��,��1000��300000 mg/Nm3,��¶�c��^250�棻��⺬��ؽ��١��,��|,��@Щ��c��Ó��y�Ⱥ�Ͷ�Y�ɱ��

3.2 ��ɫ��ИI(y��)��Ƽ��g

��p�Ż��Ƽ��g��Ҫ��ȼ��^�̿��Ƽ��g�͟��̎��g�ɴ��,��ȼ��^�̿��Ƽ��g��͵�ȼ��g,��ּ�ȼ��g��̎��g�׷QÓ��g,��x��ԷǴ߻�߀ԭ��Selective Non-Catalytic Reduction,��SNCR��x��Դ߻�߀ԭ��Selective Catalytic Reduction��SCR��,��߀��x��ԷǴ߻�߀ԭ-�x��Դ߻�߀ԭ(li��n)�Ϸ�,��շ��x��,��

2020��A��񹲺͇�ס��ͳ��l(xi��ng)��O��Ј��O(ji��n)��(li��n)�ϰl(f��)��GB 51415-2020��ɫ��ұ��U��g�˜ʡ�,��ɫ�ИI(y��)��Ó��̎��Ҏ(gu��)��Ҫ��Ó��Ч�ʲ�С��40%�ďU�⣬��x��x��Դ߻�߀ԭÓ��x��ԷǴ߻�߀ԭ+�x��Դ߻�߀ԭ��Ó��ȹ�ˇ,��Ҫ��Ó��Ч��С��40%�ďU��,��x��x��ԷǴ߻�߀ԭÓ��ȹ�ˇ[4]��

4 SCR��g��

SCR��ԭ��飺��ô߻��ͷ����,��Չm��A��̎��߀ԭ��؇��,��300~450��͜ضȷ��ȣ��x��Եغ�NOx��,��NOx߀ԭ��N2,��ă�(y��u)�c�ǰ��ʵ��_3×10-6~5×10-6��Ó��Ч�ʸ��_80%~90%,��ʹ�U��е�NOx��Ƚ��100 mg/m3~200 mg/m3,��Ҏ(gu��)SCR��g�߻��Ҫ�C⁻��߻��ɷ��TiO2,��V2O5��WO3���@Щ��|�ֲ��մɻ��|��,��ĿǰSCR��g��ɫ��ИI(y��)��ð��,��AҊ��ǣ��S��g�İl(f��)չ�ͭh(hu��n)��˜ʵ��,��SCRÓ��ɞ��g,��

��ɫ��ИI(y��)��s�Ĺ��r�h(hu��n)��Ͷ��,��߾S�o�M�ú��ߵȲ��Ƽs�˳�Ҏ(gu��)SCR��g��ɫ��ИI(y��)�đ��,��

��1��ض��ƣ��(j��)�˽⣬�߻��ձ鑪�õ��Ƕ��TiO2(�d�w)��ɷ�C��ģ�K��d�w��߻��õĻ��Գɷ�V2O5��WO3,��ض��220��400��,��ɫ��ұ��G�t�У��ڵĜض��ѽ��300��,��bSCR�Č��HÓ��Ч��ܵ�һ��Ӱ�,��@�ӵğ��⣬�Ѳ��m��b�O��Ҏ(gu��)SCRϵ�y(t��ng),��

��2��ۉm��ƣ��ɫ��ұ��M�֏��s,��д��顢��N�ؽ��ٵ��´߻��ж��|,��

��3��ԭh(hu��n)��ƣ��ɫ��ұ��⺬��F,��c�߻��е�V2O5��Ķ�ʹ�߻��ж��ʹ߻��Ļ��,��

��Ӱ�,��Ҏ(gu��)SCR��g��ɫ��I(y��)��衣

Ŀǰ�͜�SCR��ˇ��ĵĆ��}��Ȼ�ǵ͜ش߻��,��܉��m��SCRβ��ú��ؑ͜��õ��Ҫ,��ͬ�r�ֿ��Ԝp�ٌ��M��ټӟᣬ�܉��ЧÓ��е�NOx,��@�ͱ�ȻҪ��߻��Ļ��Ԝضȴ��100-180��֮�g��^�ߵ�Ó��Ч��,��͜ش߻��Ҫ��Q�ׂ��}��һ��ڵؕ͜r��^�ߵĻ��,��ǰ��,��ʧ��߻��Σ�U̎��,��͜�SCR�߻��δ��Ó��I��l(f��)չ��Ҫ��,��ߴ߻��Ժͷ�(w��n)��Ե�ͬ�r��^�m(x��)�_�l(f��)�²��,��Ч��,��ͳɱ��p��Σ�U��ԓ�I��İl(f��)չڅ��,��

5 SCRÓ��߻��

Ŀǰ��аl(f��)�F��_�l(f��)��͜�SCRÓ��߻��,��ڴ��늏S��ȼú偠t,��ȼ��偠t,��β�⡢��ɫ�ИI(y��)��,��ИI(y��)��M��˂Ⱦ��͑��ʾ��,��ͬ��Ԝضȴ߻��ͬSCR��ˇ��ͬ�r�Q��ɫ�ИI(y��)Ó��ˇ��x��O��Ĳ��λ�úͷ�ʽ,��w��±��ʾ��

��3 ��͜�Ó��߻��ɫ�ИI(y��)��й�ˇ��(y��u)��