M'munda wa flue gasi denitration, Guangdong GRVNES Environmental Protection Technology Co., Ltd. wapanga 3 + 1 zigawo ndikuwonjezera wosanjikiza wa ammonia kuthawa chothandizira kuthetsa chodabwitsa cha kuthawa ammonia pamene ammonia ena watha kupopera mbewu mankhwalawa. Ammonia wopopera amatha kutulutsidwa mumlengalenga pambuyo pochita opaleshoni.
Chithandizo cha denitration ammonia kuthawa ku GRVNES flue gasi munthawi yomweyo chithandizo cha denitration ammonia kuthawa ndi ASC ammonia kuthawa chothandizira
TzamakonoRoadmap
Malinga ndi zofunikira za polojekitiyi komanso momwe zinthu zimayendera, Green Valley kuteteza zachilengedwe kwatsimikiza njira yaukadaulo ya "SCR + ASC" kuti ikwaniritse zofunikira za polojekitiyi.Njira yaukadaulo ya polojekitiyi ikuwonetsedwa pachithunzi pansipa:
SCR + ASC
SCR + ASC Technology Roadmap
Mtengo wowonjezera mankhwala a nayitrogeni (NOx) ku injini nthawi zonse utha kuchepetsedwa ndi 90% kudzera muukadaulo wochepetsera, ndipo mtengo wogwira ntchito wamafuta a nayitrogeni (NOx) utha kuchepetsedwa ndi 5% kudzera muukadaulo wochepetsera wothandizira. .Ndipo kuthamanga kwa msana kumakhala kochepa, ndipo pafupifupi palibe kuwonjezeka kwa kuthamanga kwa msana pogwiritsira ntchito.
Chithunzi cha Mfundo Zogwira Ntchito za SCR Catalys
Chithunzi cha Mfundo Zogwira Ntchito za SCR Catalys
Mfundo Yogwira Ntchito ya ASC Ammonia Escape Catalyst:
Chothandizira makutidwe ndi okosijeni cha ASC chimapangidwa makamaka ndi chonyamulira komanso cholumikizira chothandizira.Ndi chida choyeretsera injini ya dizilo.Cholinga chachikulu cha chipangizochi ndikuwonjezera oxidize NH3 yochulukirapo mu dizilo yotulutsa dizilo ndi O2 kuti ipange N2 yopanda kuipitsidwa ndi madzi kuchokera mu injini, kuti muzindikire kutulutsa koyera kwa utsi wa dizilo.Itha kugwiritsidwa ntchito kuphatikiza ndi dizilo particle catcher ndi denitration purification catalyst.
Kutentha kwa Ignition
Ndiko kuti, kutentha kumene chothandizira kufika 50% kutembenuka dzuwa.Kutentha kwa ASC ammonia kuthawa chothandizira ndi 250 ℃.Kuti mukwaniritse kutembenuka kwakukulu, kutentha kwa injini kumafunika kukhala kwakukulu.
Fomu Yopakira
Itha kukutidwa padera kapena kupindika ndi SCR, yomwe imatha kukwaniritsa zofunikira pakugwirira ntchito bwino.
Emission Standard:
Kuthawa kwa ammonia ≤ 3ppm
NOx emission reduction vs ammonia kuipitsa mumakampani a simenti
Chifukwa kafukufuku wokhudza kuwombera ng'anjo ya simenti akadali m'malo ambiri, pali zofooka zambiri pamikhalidwe yogwirira ntchito mu uvuni komanso mapangidwe a nitrogen oxides m'makampani a simenti apanyumba.Pali magwero ambiri a nitrogen oxides ndi zinthu zambiri zomwe zimakhudza.M'munda waukadaulo wochepetsera mpweya wa nitrogen oxide, matekinoloje omwe alipo akuphatikiza SCR, SNCR, kuyaka kokhazikika ndi zina zotero.
Ukadaulo wosankha wochepetsera wa SCR ndiye ukadaulo waukulu padziko lonse lapansi.Ndi ammonia kapena urea monga denitration wothandizira ndi chothandizira kusankha mayamwidwe pansi zochita chothandizira mu mayamwidwe nsanja, mlingo denitration akhoza kufika oposa 90%.
Ukadaulo wa SNCR umagwiritsa ntchito danga loyenera kutentha (900 ℃ ~ 1100 ℃) mu ng'anjo yowola kuti alowemo ammonia osakaniza.Kutentha uku, ammonia (NH3) imakhudzidwa ndi NOx mu gasi wa flue kupanga N2 ndi H2O.Mlingo wa denitration nthawi zambiri ndi 40% - 60%, kumwa ammonia ndikwambiri, ndipo kuthawa kwa NH3 ndikwambiri, komwe kumatha kupitilira 3 nthawi ya SCR.
Pakadali pano, mabizinesi apanyumba a simenti amaliza ntchito yomanga SNCR denitration.Tekinoloje iyi imagwiritsa ntchito ammonia wambiri ngati NOx kuchepetsa wothandizira.Ammonia ndiyosavuta kutayikira popanga, kuyendetsa, kusungirako ndikugwiritsa ntchito, zomwe zimapangitsa kuipitsidwa kwakukulu kwa chilengedwe.
Choncho, makampani a simenti omwe alipo panopa akukumana ndi vuto linalake losagwirizana.Kugwiritsa ntchito ammonia denitration kumatha kuchepetsa mpweya wa nitrogen oxide, koma vuto la "ammonia kuthawa" ndizovuta kuthetsa.Komanso, kupanga ammonia palokha ndi njira yogwiritsira ntchito mphamvu zambiri komanso kuipitsidwa kwakukulu, ndipo mayendedwe, kusungirako ndi kugwiritsa ntchito kumapangitsanso "kuthawa kwa ammonia".
Kutengera ndi zovuta zotere, mabizinesi a simenti ayenera kulimbikitsa kayendetsedwe ka kayendetsedwe ka ammonia ndi kusungirako, kupititsa patsogolo kagwiritsidwe ntchito ka ammonia ndikuchepetsa "kuthawa kwa ammonia".
Kodi Ammonia Adzathawa Kuti?
Pansi pa zomwe zikuchitika pano pachitetezo cha chilengedwe, kuchepetsa utsi woyipa wamakampani a simenti ndi chofunikira chosapeŵeka cha chilengedwe chakunja;Panthawi imodzimodziyo, ndi kuwonjezereka kwa teknoloji yamakampani a simenti, kutsika kwa mphamvu zogwiritsira ntchito mphamvu ndi kutulutsa mpweya ndizomwe sizingalephereke pakukweza makampani.
Kwa mabizinesi a simenti, kuchokera pazachuma, mtengo wosinthika waukadaulo wa SCR wokha ukuyembekezeka kukhala wopitilira 30 miliyoni.Kuphatikiza apo, mtengo wa chothandizira ndi wokwera kwambiri kuposa wa "SNCR + source treatment".Kachiwiri, pamaziko a kuyaka otsika kwa nayitrogeni komanso kuyaka kokhazikika, kuphatikiza ndi SNCR, mabizinesi ena amathanso kukwaniritsa miyezo yaposachedwa ya NOx pamikhalidwe yokhazikika yamoto.
Kutengera pazifukwa pamwamba, pakali pano, ambiri mabizinezi zoweta simenti kusankha njira ya "SNCR + gwero mankhwala" kukwaniritsa zofunika kuchepetsa ammonia okusayidi umuna, koma kuipa chifukwa ndi vuto la kuthawa ammonia akhoza kukulirakulira.
Nthawi yotumiza: May-07-2022