A fagen fasa bututun iskar gas, Guangdong GRVNES Fasahar Kare Muhalli Co., Ltd. ya tsara 3 + 1 yadudduka kuma ya kara da wani nau'in tseren ammoniya don magance lamarin tserewar ammoniya lokacin da wasu ammoniya suka ƙare, ta yadda za a wuce. fesa ammonia za a iya sallama a cikin iska bayan dauki bayan aiki.
Maganin Denitration ammoniya tserewa daga GRVNES bututun iskar gas na lokaci guda jiyya na tserewa ammoniya tare da ASC ammoniya tserewa mai kara kuzari.
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Dangane da bukatun aikin da ainihin halin da ake ciki, kare muhalli na Green Valley ya ƙayyade hanyar fasaha na "SCR + ASC" don biyan bukatun aikin.Ana nuna hanyar fasaha na aikin a cikin hoton da ke ƙasa:
SCR+ASC
Taswirar Fasaha ta SCR + ASC
Za a iya rage farashin ƙara mahaɗan nitrogen (NOx) zuwa injin a kai a kai da fiye da 90% ta hanyar fasahar rage yawan kuzari, kuma za a iya rage ingantaccen farashin mahadi na nitrogen (NOx) da fiye da 5% ta hanyar fasahar rage catalytic. .Kuma matsi na baya yana da ƙananan, kuma kusan babu karuwa a baya a cikin tsarin amfani.
Tsarin Ƙa'idar Aiki na SCR Catalys
Tsarin Ƙa'idar Aiki na SCR Catalys
Ƙa'idar Aiki na ASC Ammonia Escape Catalyst:
ASC hadawan abu da iskar shaka mai kara kuzari ne yafi hada da m da catalytic shafi.Na'urar tsarkake shayewar injin dizal ce.Babban manufar na'urar ita ce oxidize da wuce haddi NH3 a cikin Diesel sharar tsarin tare da O2 don samar da gurbatawa N2 da ruwa daga cikin engine, ta yadda za a gane da tsabta watsi da dizal shaye.Ana iya amfani da a hade tare da dizal barbashi kama da denitration tsarkakewa kara kuzari.
Wutar wuta
Wato, yanayin zafin da mai kara kuzari ya kai 50% ingantaccen juzu'i.Matsakaicin zafin wuta na ASC ammoniya tserewa mai kara kuzari shine 250 ℃.Don cimma mafi girma juyi, yawan zafin jiki na injin yana buƙatar ya zama mafi girma.
Fom ɗin tattarawa
Ana iya lulluɓe shi daban ko haɗe shi da SCR, wanda zai iya biyan bukatun ingancin sabis.
Matsayin Fitowa:
Adadin tserewar Ammoniya ≤ 3ppm
Rage watsi da NOx vs gurɓacewar ammonia a masana'antar siminti
Domin har yanzu ana ci gaba da gudanar da bincike kan harba harsashi na murhun siminti, har yanzu akwai nakasu da yawa a yanayin aiki a cikin injin da kuma samar da sinadarin nitrogen oxides a cikin masana'antar siminti na cikin gida.Akwai abubuwa masu yawa na nitrogen oxides da abubuwa masu tasiri da yawa.A fagen fasahar rage fitar da iskar nitrogen oxide, manyan fasahohin da ake da su sun hada da SCR, SNCR, konewa da aka shirya da dai sauransu.
SCR zaɓaɓɓen fasahar rage yawan kuzari ita ce babbar fasahar hana ɓarna a duniya.Tare da ammonia ko urea a matsayin wakili na denitration da catalytic zaɓaɓɓen sha a ƙarƙashin aikin mai kara kuzari a cikin hasumiya mai sha, ƙimar denitration na iya kaiwa fiye da 90%.
Fasahar SNCR tana amfani da sararin zafin jiki mai dacewa (900 ℃ ~ 1100 ℃) a cikin tanderun bazuwar don shigar da cakuda ammonia a ciki.A wannan zafin jiki, ammonia (NH3) yana amsawa tare da NOx a cikin iskar gas don samar da N2 da H2O.Matsakaicin ƙididdigewa gabaɗaya 40% - 60%, yawan amfani da ammonia yana da girma, kuma adadin tserewa na NH3 yana da girma, wanda zai iya zama fiye da sau 3 na SCR.
A halin yanzu, kamfanonin siminti na cikin gida sun kammala aikin gina SNCR denitration.Wannan fasaha yana amfani da adadi mai yawa na ammonia azaman wakili na rage NOx.Ammoniya yana da sauƙi don zubewa a cikin tsari na samarwa, sufuri, ajiya da amfani, yana haifar da mummunar gurɓataccen yanayi ga yanayin yanayi.
Don haka, masana'antar siminti a halin yanzu suna fuskantar matsala mai cin karo da juna.Yin amfani da denitration na ammonia na iya rage fitar da iskar nitrogen oxide, amma matsalar "kubuta ammonia" yana da wuyar warwarewa.Haka kuma, samar da ammonia da kansa wani tsari ne na yawan amfani da makamashi da kuma gurɓataccen gurɓataccen yanayi, kuma sufuri, ajiya da amfani kuma zai haifar da "kubuta ammonia".
Dangane da irin waɗannan matsalolin, kamfanonin siminti ya kamata su ƙarfafa gudanar da harkokin sufuri da ajiyar ammonia, inganta yadda ake amfani da ammonia da kuma rage "gujewa ammonia".
A ina Ammoniya za ta tsere?
A karkashin halin da ake ciki na kare muhalli na yanzu, rage gurbataccen hayaki na kamfanonin siminti abu ne da babu makawa na muhallin waje;A lokaci guda, tare da haɓaka fasahar masana'antar siminti, rage yawan amfani da makamashi da ƙa'idodin fitar da hayaki suma sune yanayin haɓaka masana'antu.
Ga kamfanonin siminti, ta fuskar tattalin arziki, farashin canji na fasahar SCR kawai ana sa ran zai wuce miliyan 30.Bugu da kari, farashin mai kara kuzari ya fi na "SNCR + magani tushen".Abu na biyu, a kan ƙarancin konewar nitrogen da konewar da aka shirya, haɗe da SNCR, wasu kamfanoni kuma za su iya saduwa da ƙa'idodin fitar da NOx na yanzu a ƙarƙashin ingantattun yanayin kiln.
Dangane da dalilan da ke sama, a halin yanzu, yawancin kamfanonin siminti na gida suna zaɓar hanyar "SNCR + tushen jiyya" don biyan buƙatun rage fitar da ammonia oxide, amma sakamakon da ya haifar shi ne cewa matsalar tserewar ammonia na iya ƙara tsananta.
Lokacin aikawa: Mayu-07-2022