Nnianim ne Nneɛma a Ɛfa Selective Catalytic Reduction (SCR) Catalysts ho
Selective catalytic reduction (SCR) catalysts de ade a ɛtew so di dwuma de paw ne NOx a ɛwɔ flue gas mu no yɛ adwuma, na ɛma N2 ne H2O a ɛnyɛ -awuduru ne efĩ-ni mu, wɔ catalyst adeyɛ ase.
Ɛnyɛ sɛnea nneɛma a ɛma nneɛma yɛ adwuma no yɛ adwuma no nko na ɛkyerɛ sɛnea nneɛma a wɔde yɛ ade no yɛ hyew nko na mmom sɛnea SCR ade a ɛma nneɛma yɛ adwuma no yɛ adwuma nso. Mpɛn pii no, ɔhyew a ɛkɔ soro a ɛma nneɛma yɛ adwuma no yɛ ntɛmntɛm na ɛma nneɛma a ɛma nneɛma yɛ adwuma no yɛ adwuma kɛse, na ɛma adeyɛ no mu baabi ketewaa ne adeyɛ no dodow yɛ ketewaa wɔ beae biako biara mu. Sɛ yɛhwɛ reactant heating, system control, ne catalyst no hyew a ɛfata a, wɔtaa de SCR nhyehyɛe no hyew si digrii 320 ne 420 ntam .
Ahunmu ahoɔhare yɛ ade titiriw a wɔde yɛ nhyehyɛe ma selective catalytic reduction (SCR) catalysts. Ɛsusu bere a mframa a wɔde gu mu (mframa a ɛyɛ nsu wɔ tebea horow a wɔahyɛ da ayɛ mu) tra mu wɔ catalyst dodow no mu, na ɛde besi baabi no, ɛkyerɛ sɛ ebia nneɛma a ɛyɛ adwuma no yɛ adwuma koraa anaa. Ɛsan nso nya scouring a ɛwɔ reactor catalyst framework ne friction loss a ɛwɔ flue gas no so nkɛntɛnso.
Sɛnea mframa a ɛsen fa fie no mu no yɛ papa na ɛkyerɛ sɛnea ade a ɛma mframa bɔne no yɛ adwuma yiye. Ɛnyɛ sɛ flue gas flow nhyehyɛe a ɛfata ma catalyst a wɔde di dwuma kɛse nko na mmom ɛtew friction loss so nso. Wɔ mfiridwuma ho nhyehyɛe mu no, ɛsɛ sɛ wosusuw mframa a efi fie no mu no ho yiye. Ɛsɛ sɛ mmeae a wɔde ammonia gu mu no nya tebea horow a basabasayɛ wom na ama wɔanya afrafra a eye sen biara wɔ mframa a wɔde gu mu no mu na wɔayɛ beae a wɔakyerɛkyerɛ mu pefee a ɛyɛ pɛ a ɛsen fa mu.
