ʻO ka ʻenehana hoʻoheheʻe Catalytic e like me kekahi o nā kaʻina hana hoʻomaʻemaʻe kinoea VOC, no ka nui o kona hoʻomaʻemaʻe kiʻekiʻe, haʻahaʻa wela wela (<350 ° C), ka puhi ʻana me ka ʻole o ka lapalapa ʻana, ʻaʻohe mea haumia lua e like me ka hanauna NOx, palekana, mālama ʻana i ka ikehu a me ka mālama ʻana i ke kaiapuni a me nā ʻano ʻē aʻe, i ka noi ʻana o ka mākeke palekana kaiapuni i kahi kūlana hoʻomohala maikaʻi.ʻOiai ʻo ka loulou ʻenehana nui o ka ʻōnaehana hoʻoheheʻe catalytic, ʻo ka ʻenehana synthesis catalyst a me nā lula noi he mea nui loa.
1. Ke kumu o ka hoʻohenehene catalytic
ʻO ke kumumanaʻo o ka hopena catalytic combustion ʻo ia ka hoʻomaʻemaʻe ʻana i ke kinoea a hoʻopau ʻia ma lalo o ka hana a ka catalyst ma kahi haʻahaʻa haʻahaʻa e hoʻokō ai i ke kumu o ka hoʻomaʻemaʻe ʻana i ke kinoea.ʻO ka hoʻopau ʻana i ka catalytic he hopena catalytic maʻamau o ke kinoea paʻa paʻa, a ʻo kāna kumu ʻo ia ke komo ʻana o nā ʻano oxygen reactive i loko o ka oxidation hohonu.
Ma ke kaʻina hana hoʻoheheʻe catalytic, ʻo ka hana o ka catalyst e hōʻemi i ka ikehu hoʻāla o ka hopena, ʻoiai ua hoʻonui ʻia nā molekala reactant ma luna o ka catalyst surface e hoʻonui i ka hopena.Me ke kōkua o ka catalyst, hiki i ke kinoea ʻōpala organik ke puhi ʻole i ka lapalapa ma kahi haʻahaʻa haʻahaʻa haʻahaʻa a hoʻokuʻu i ka nui o ka wela i ka wā e oxidizing a decomposing i CO2 a me H2O.
3. Ka hana a me ka mana o ka VOCs catalyst ma ka catalytic combustion system
ʻO ka mea maʻamau, he kiʻekiʻe ka wela wela o ka VOC, a hiki ke hoʻemi ʻia ka ikehu hoʻōla o ka VOC ma o ka hoʻoulu ʻana o ka catalyst, i mea e hoʻemi ai i ka mahana wela, e hoʻemi i ka hoʻohana ʻana i ka ikehu a mālama i nā kumukūʻai.
Eia kekahi, ʻoi aku ka mahana wela o ka mea maʻamau (ʻaʻohe catalyst) ma luna o 600 ° C, a ʻo ia hoʻopau ʻana e hoʻopuka ai i nā nitrogen oxides, i ʻōlelo pinepine ʻia ʻo NOx, ʻo ia hoʻi ka mea haumia e mālama pono ʻia.ʻO ka puhi Catalytic ka puhi ʻana me ka ʻole o ka lapalapa ʻana, ma lalo o 350 ° C, ʻaʻohe hanauna NOx, no laila ʻoi aku ka palekana a ʻoi aku ka maikaʻi o ke kaiapuni.
4. He aha ke ea?He aha nā mea e pili ana i ka wikiwiki o ka ea
Ma ka VOCs catalytic combustion system, ʻo ka wikiwiki o ka pane ʻana e pili ana i ka volume space speed (GHSV), e hōʻike ana i ka hiki ke hana o ka catalyst: ʻo ka wikiwiki o ka pane ʻana e pili ana i ka nui o ke kinoea i hana ʻia i kēlā me kēia manawa no kēlā me kēia leo o ka catalyst. ma lalo o nā kūlana i ho'ākāka 'ia, he m³/(m³ catalyst • h), hiki ke ma'alahi e like me h-1.No ka laʻana, hōʻailona ʻia ka huahana me ka wikiwiki o ka lewa 30000h-1: ʻo ia hoʻi, hiki i kēlā me kēia cubic catalyst ke mālama i ka 30000m³ exhaust gas i kēlā me kēia hola.Hōʻike ka wikiwiki o ka ea i ka hiki ke hana VOC o ka catalyst, no laila pili pili i ka hana o ka catalyst.
5. ʻO ka pilina ma waena o ka ukana metala makamae a me ka ea, ʻoi aku ka maikaʻi o ke kiʻekiʻe o ka metala makamae?
ʻO ka hana o ka catalyst metala makamae e pili ana i ka ʻike o ka metala makamae, ka nui o nā ʻāpana a me ka hoʻopuehu.ʻO ke kūpono, ua hoʻopuehu nui ʻia ka metala makamae, a aia ka metala makamae ma luna o ka mea lawe i nā mea liʻiliʻi liʻiliʻi (he mau nanometers) i kēia manawa, a hoʻohana ʻia ka metala makamae i ka nui loa, a ʻoi aku ka maikaʻi o ka hana ʻana o ka catalyst. pili me ka mea metala makamae.Eia nō naʻe, ke kiʻekiʻe ka ʻike o nā metala makamae i kekahi ʻano, ua maʻalahi nā ʻāpana metala e hōʻiliʻili a ulu a lilo i mau ʻāpana nui, e emi ana ka ʻili pili o nā metala makamae a me nā VOC, a ua wahī ʻia ka hapa nui o nā metala makamae i loko. i kēia manawa, ʻaʻole kūpono ka hoʻonui ʻana i ka ʻike o nā metala makamae i ka hoʻomaikaʻi ʻana i ka hana catalyst.
Ka manawa hoʻouna: ʻAukake-03-2023