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��r(sh��)�g��2009-11-13 15:40 ��Դ��Ї��ƌW(xu��) ��: �w �� S�嬎 �OС܊ ��| ��x��8159

��Щ��, (li��n)�ϟ��Ó��Ó��g(sh��)�ܵ��V��P(gu��n)ע, ��, ��y(t��ng)��(li��n)�ϟ��Ó��Ó��ˇ��Ó��b�ú��ڳ��m��ǰ��bһ��Ó��b��x��Դ߻�߀ԭ(SCR)��x��ԷǴ߻�߀ԭ(SNCR), �Ķ��(sh��)�F(xi��n)(li��n)��Ó��Ó��(combined desulfurization and denitrification). �@�N�ּ�(j��)��ʽ��Hռ��e��, ��Ͷ�Y��\(y��n)��M(f��i)�ø�, �o��e�ƏV��(y��ng)�Î��һ��y. ��˽��͟��M(f��i)��, �_�l(f��)ͬ�r(sh��)Ó��Ó��(simultaneous desulfurization and denitrification) �¼��g(sh��),��O(sh��)��ѳɞ��Ⱦ��I(l��ng)��ǰ��Ե��о��, ��(n��i)��^��P(gu��n)�о�, ��ڼ��g(sh��)�ͽ�(j��ng)��(j��)�ȷ��ȱ��, �y�԰l(f��)չ�ɞ��^�錍(sh��)�õļ��g(sh��).

�҂�ע�⵽��ѭ�h(hu��n)��Ó��g(sh��), ԓ��g(sh��)��ɵ��LLB(Lurgi Lentjes Bischoff)��˾�о��_�l(f��). ��(j��ng)�^20 ��ꌦ��ˇ�^�̵��о��͹��̌�(sh��)�`�ķe��, ��ѭ�h(hu��n)��Ó��g(sh��)�ڽ��õ��˿��ٰl(f��)չ. ��ԓ��g(sh��)Ͷ�Y��\(y��n)��M(f��i)�üs��Ó��ˇ��50%~70%[1], ��緶��(n��i)�õ��̘I(y��)��(y��ng)��. ��͵ğ��ѭ�h(hu��n)��Ó��b��҇�Ͷ��ʹ��, ��ԓ��ˇ�]��ͬ�r(sh��)Ó��. ��ԓ��ˇ��ռ��eС,��Ͷ�Y��\(y��n)��M(f��i)�õ͵ȃ�(y��u)�c(di��n), ��ͬ�r(sh��)Ó��, �䑪(y��ng)��ǰ��ǳ��V�.

�о��, ��е�NO ��ˮ�ĵ�NO2 ��ѭ�h(hu��n)��Ќ�(sh��)�F(xi��n)ͬ�r(sh��)Ó��Ó��ļ��g(sh��)�P(gu��n)�I. �͜��NO ��g(sh��)��P(gu��n)�Y��^��, Chu ��Chien[2]��M(j��n)��/NaOH��Һͬ�r(sh��)Ó��NO ��SO2 ��о�. Hori ��[3]��򟟵��м��u��ɻ��(sh��)�F(xi��n)NO �Ŀ��. �҂��(j��ng)�^��о�, �_�l(f��)��“��”�͸߻��Մ�, ��ڹ̶��͹ܵ��ԇ�(y��n)�_(t��i)��M(j��n)��о�[4,5], ȡ��^�M��ĽY(ji��)��. ��ģ�M��, ��O(sh��)Ӌ(j��)��ѭ�h(hu��n)��M(j��n)��ͬ�r(sh��)Ó��Ó��ԇ�(y��n), �@��^�ߵ�Ó��Ó��Ч��; ͨ�^��(sh��)�(y��n)��(y��ng)��Մ��SO2 ��NO ��Ó��a(ch��n)��M(j��n)��˳ɷֻ��W(xu��)��, ��Ò��@΢�R��X �侀��V�x��߻��Մ��ú��,��“��”�߻��Մ��ͷ��(y��ng)��“��”�߻��Մ��M(j��n)��˱��΢�^(q��)��, �о��ԓ��Ը߻��Մ��Ó��Ó��C(j��)��.

��(sh��)�(y��n)

1 ��(sh��)�(y��n)ϵ�y(t��ng)��ͬ�r(sh��)Ó��Ó��ԇ�(y��n)

ԇ�(y��n)��D1 ��ʾ��Ƶ�ԇ�(y��n)ϵ�y(t��ng)��M(j��n)��. ��(y��ng)��w��һ��(g��)��(n��i)��250 mm,��4500 mm �Ĵ�ֱ�AͲ, ��w��O(sh��)��ɜضȜy�c(di��n).

ԇ�(y��n)��ʹ��SO2-NO-H2O-�՚��Ϛ��w��ģ�M��(sh��)�H��, SO2 ��NO ��ڸ��Ե��ƿ. ԓ��Ϛ��w��(j��ng)늼ӟ��ӟ��M(j��n)��(y��ng)��. ��(sh��)�(y��n)ϵ�y(t��ng)ʹ��L(f��ng)�C(j��)��(d��ng)��Դ, ��(sh��)�(y��n)ϵ�y(t��ng)��ؓ(f��)��\(y��n)��. ��(n��i)�\(y��n)�Љ��800 Pa.

�߻��Մ��ʽ�o�ϙC(j��)��뵽��(y��ng)��, ͨ�^�{(di��o)��(ji��)��϶��м��Ͽڵ��_�ȁ��{(di��o)��(ji��)�o��. �ķ��(y��ng)��Ĺ��w��Ͻ^�󲿷ֱ��L(f��ng)��m��ռ�, ��(j��ng)�ɻ��ȷ��ص��cѭ�h(hu��n).

ԇ�(y��n)�M(j��n)�Еr(sh��), ͨ�^�߉�ˮ�îa(ch��n)��F��ˮ�Ώ��(y��ng)��ײ��, �{(di��o)��(ji��)��.

�M(j��n)��(y��ng)ϵ�y(t��ng)�ğ��SO2 ��NO �ĝ��ɟ��x(MRU 95/3CD ��,��)�y��. ��ß��x�y��. ��(y��ng)�ض��ɟ��ż�y��.

2 ��Ը߻��Մ��Ƃ�

��Ը߻��Մ��Ƃ䅢��҂��ǰ�Ĺ��[4,5], ��Ƃ䷽��: ��ú��c��I(y��)ʯ��(��Ȟ�3�U1)��ˮ��, ��ضȞ�90��, ��r(sh��)�g��6 h. ��ɺ��i�}(M)��ĩ, ��ʹ��߶ȷ�ɢ��Մ��ı��, �Ķ��Մ��γ��S��“��c(di��n)”, �ɴ��Ƶþ��ͬ�r(sh��)Ó��Ó��ܵ��Ը߻��Մ�.

3 Ó��Ч�ʴ_��΢�^(q��)��Ó��a(ch��n)��

Ó��Ч��ͨ�^�y��(y��ng)ϵ�y(t��ng)�П��M(j��n)�� SO2 ��NO �ĝ�ȶ��_��; ��ú��,��Ը߻��Մ��ͷ��(y��ng)��Ը߻��Մ��΢�^(q��)��ò��KYKY2800B �͒��@΢�R(�Ї��ƌW(xu��)Ժ�ƃx��޹ɷݹ�˾); ��ɷַ��SEM ��õ�Vantage DIS ��X �侀��V�x(EDS, �� Thermo NORAN ��˾); Ó��Ó��a(ch��n)��û��W(xu��)��, ��,��t��^��ȷ��y��, ��}��N-(1-��)-�Ҷ��ȷ��y��, ��\��߀ԭ��y��}��.

4 ѭ�h(hu��n)��ʡ�ѭ�h(hu��n)��,��(y��ng)��w�w��ĝ��

ѭ�h(hu��n)��,��ѭ�h(hu��n)��ʡ��(y��ng)��w�w��ĝ�ȿ��Á��(y��ng)��Մ��. ѭ�h(hu��n)��(kg·m−2·s−1)ͨ�^�y��Ӌ(j��)��@��. ��(y��ng)��(n��i)��w�w��(kg·m−3)��Ӌ(j��)��ʽ��: ��(y��ng)��(n��i)�w��|(zh��)��/��(y��ng)��w�e. ѭ�h(hu��n)��ʞ�: Gs·A/mds, ��Gs ��ѭ�h(hu��n)��, A �鷴��(y��ng)��e, mds ��Մ��. ��߾��ͨ�^��o�ϙC(j��)�{(di��o)��(ji��).

�Y(ji��)Փ

(1) ��ʯ��,��ú��,��M ��ӄ��ԭ��, �Ƃ��˾��и߻��Ե��Մ�, SEM��X�侀��V��, ��Մ��^��, ��ú�Һ�ʯ�Ұl(f��)��ˏ�(f��)�s�Ļ�ɽ�ҷ��(y��ng), ԓ�߻��Մ��ı��ֲڶ�ס��иߵıȱ��e; M ��ӄ��ɢ��Մ��.

(2) ��Ƃ��Ը߻��Մ�, ��ѭ�h(hu��n)��M(j��n)��˟��ͬ�r(sh��)Ó��Ó��ԇ�(y��n).ԇ�(y��n)��, ��,��ض�,��ͣ��r(sh��)�g��}�򵪱Ⱥ�ѭ�h(hu��n)��Ӱ�Ó��Ó��Ч�ʵ��ҪӰ��; �_��ѭ�h(hu��n)��ͬ�r(sh��)Ó��Ó��ѹ�ˇ��(sh��)��: ѭ�h(hu��n)��ڟ��ض�, 130��; ��, 6.0%(�w�e��); M ��ӄ��, 1.6%; Ca/(S+N), 1.2; ѭ�h(hu��n)��, 85; ��ͣ��r(sh��)�g, 2.4 s; ��, 400 m3/h. ��ˇ��(sh��)��, Ó��Ч�ʺ�Ó��Ч�ʷքe�_(d��)�� 95.5%��64.8%. M ��ӄ��ĺ��Ó��Ӱ��@��, ��Ó��Ч��Ӱ푲��.

(3) ��CFB �ϵ�ԇ�(y��n)�Y(ji��)��, �ڱ�ԇ�(y��n)�l��, Ó��Ó��Ч��جF(xi��n)��, ��˹�ˇ�^��, �\(y��n)�з�(w��n)��, ��к܏�(qi��ng)�Ĺ��I(y��)��(y��ng)�Ý��.

(4) ��(j��)SEM ��X ��V��, ��Y(ji��)��Ó��a(ch��n)��Ļ��W(xu��)��Y(ji��)��, ��Ը߻��Մ��Ó��Ó��C(j��)��Ɣ��: ��NO ��NO2, �� SO2 һ��c��ˮ��Մ��Ca(OH)2 �l(f��)��^��, �γ��},��},��}�́��}.

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