Dhinaca diidmada gaaska qiiqa, Guangdong GRVNES Tiknoolajiyada Ilaalinta Deegaanka ee Co., Ltd. waxay nashqadaysay 3 + 1 lakab waxayna ku dartay lakabka ammonia fakashada kicinta si ay u xalliso ifafaalaha baxsashada ammonia marka qaar ka mid ah ammonia ay ka badan tahay buufinta, si ay u dhaafaan. ammonia la buufiyay ayaa lagu sii dayn karaa hawada ka dib falcelinta qalliinka ka dib.
Daawaynta denitration ammonia waxay ka baxsataa gaaska flue GRVNES daawaynta isku mar ee daawaynta denitration ammonia iyo ASC ammonia fakashada kicinta
TteknolojiRoadmap
Marka loo eego shuruudaha mashruuca iyo xaaladda qiiqa dhabta ah, ilaalinta deegaanka ee Dooxada Green Valley ayaa go'aamisay dariiqa farsamada "SCR + ASC" si loo buuxiyo shuruudaha mashruuca.Dariiqa farsamo ee mashruuca ayaa lagu muujiyay sawirka hoose:
SCR+ASC
Khariidadda Tignoolajiyada ee SCR + ASC
Qiimaha lagu daro xeryahooda nitrogen (NOx) ee mishiinka si joogto ah ayaa loo dhimi karaa in ka badan 90% iyada oo loo marayo tiknoolajiyada dhimista catalytic, iyo kharashka waxtarka leh ee xeryahooda nitrogen (NOx) waxaa lagu dhimi karaa in ka badan 5% iyada oo loo marayo tikniyoolajiyadda dhimista catalytic .Cadaadiska dhabarku waa hooseeyaa, oo waxaa jira ku dhawaad ma kordhin cadaadiska dhabarka ee habka isticmaalka.
Shaxda Mabaadi'da Shaqada ee SCR Catalys
Shaxda Mabaadi'da Shaqada ee SCR Catalys
Mabda'a Shaqada ee ASC Ammonia Escape Catalyst:
ASC oxidation kataliyet waxa uu inta badan ka kooban yahay side iyo daahan katalytic.Waa aaladda nadiifinta qiiqa naaftada.Ujeedada ugu weyn ee aaladda ayaa ah in ay oksaydheeyaan NH3-da dheeriga ah ee nidaamka qiiqa naaftada leh O2 si ay u sameeyaan N2 aan wasakhayn iyo biyo ka soo baxa mishiinka, si loo xaqiijiyo sii daynta nadiifka ah ee qiiqa naaftada.Waxa loo isticmaali karaa marka lagu daro qab-qabta walxaha naaftada ah iyo kicinta nadiifinta denitration.
Heerkulka dabka
Taasi waa, heerkulka kaas oo kicinta uu gaaro 50% waxtarka beddelka.Heerkulka dabka ee ASC fakashada ammonia waa 250 ℃.Si loo gaaro beddelaad sare, heerkulka qiiqa matoorku wuxuu u baahan yahay inuu sarreeyo.
Foomka Baakadaha
Waxaa lagu dahaadhay karaa si gooni ah ama lagu dahaadhay karaa SCR, kaas oo buuxin kara shuruudaha hufnaan adeegga.
Heerka sii daynta:
Heerka baxsashada Ammonia ≤ 3pm
Dhimista qiiqa NOx vs wasakhowga ammonia ee warshadaha sibidhka
Sababtoo ah cilmi-baarista habka toogashada ee foornada sibidhka ayaa weli ku jirta xaalad aad u ballaaran, weli waxaa jira cillado badan oo ku saabsan xaaladaha shaqada ee foornada iyo habka formation of nitrogen oxides ee warshadaha sibidhka gudaha.Waxa jira ilo badan oo oksijiinta nitrogen ah iyo arrimo badan oo saameeya.Dhinaca tignoolajiyada yaraynta sii daynta ogsaydhka nitrogen, tignoolajiyada ugu muhiimsan ee jira waxaa ka mid ah SCR, SNCR, gubasho heersare ah iyo wixii la mid ah.
Tignoolajiyada dhimista katalytiga ee xulashada SCR waa tignoolajiyada ugu weyn ee diidmada adduunka.Iyada oo ammonia ama urea ay tahay wakiilka denitration iyo nuugista xushay katalytic ee hoos timaadda ficilka kicinta ee munaaradda nuugista, heerka ilbaxnimadu waxay gaari kartaa in ka badan 90%.
Tiknoolajiyada SNCR waxay isticmaashaa meel ku habboon heerkulka (900 ℃ ~ 1100 ℃) foornada burburka si ay ugu durto isku dhafka ammonia.Heerkulkan, ammonia (NH3) waxay la falgashaa NOx ee gaasta flue si ay u soo saarto N2 iyo H2O.Heerarka diidmada guud ahaan waa 40% - 60%, isticmaalka ammonia waa mid aad u weyn, heerka baxsashada ee NH3 waa sarreeyaa, taas oo noqon karta in ka badan 3 jeer SCR.
Waqtigan xaadirka ah, ganacsiyada sibidhka ee gudaha ayaa asal ahaan dhammaystiray dhismaha diidmada SNCR.Farsamadani waxay isticmaashaa xaddi badan oo ammonia ah sida wakiilka dhimaya NOx.Ammonia way fududahay in lagu daato habka wax soo saarka, gaadiidka, kaydinta iyo isticmaalka, taasoo keentay wasakh halis ah deegaanka jawiga.
Sidaa darteed, warshadaha sibidhka ee hadda jira ayaa dhab ahaantii wajahaya dhibaato iska soo horjeeda.Isticmaalka denitration ammonia waxay yarayn kartaa qiiqa nitrogen oxide, laakiin dhibaatada "baxsashada ammonia" way adagtahay in la xalliyo.Waxaa intaa dheer, wax soo saarka ammonia lafteeda waa habka isticmaalka tamarta sare iyo wasakhowga sare, iyo gaadiidka, kaydinta iyo isticmaalka ayaa sidoo kale keeni doona "baxsiga ammonia".
Iyada oo ku saleysan dhibaatooyinka noocaas ah, shirkadaha sibidhka waa in ay xoojiyaan maamulka gaadiidka iyo kaydinta ammonia, wanaajiya waxtarka isticmaalka ammonia oo ay yareeyaan "baxsiga ammonia".
Halkee Ammonia Ka Baxsan Doontaa?
Xaaladda ilaalinta deegaanka ee hadda jirta, yaraynta qiiqa wasakhaysan ee shirkadaha sibidhka waa shuruud lama huraan ah oo deegaanka dibadda ah;Isla mar ahaantaana, iyada oo la adeegsanayo tignoolajiyada warshadaha sibidhka, isticmaalka tamarta hoose iyo heerarka qiiqa ayaa sidoo kale ah isbeddelka lama huraanka ah ee cusboonaysiinta warshadaha.
Shirkadaha sibidhka, marka laga eego dhinaca dhaqaalaha, qiimaha isbeddelka ee tignoolajiyada SCR oo keliya ayaa la filayaa inay ka badan yihiin 30 milyan.Intaa waxaa dheer, qiimaha kicinta ayaa aad uga sarreeya kan "SNCR + daaweynta isha".Marka labaad, iyadoo lagu salaynayo gubasho yar oo nitrogen ah iyo gubasho heersare ah, oo ay weheliso SNCR, shirkadaha qaarkood waxay sidoo kale buuxin karaan heerarka qiiqa NOx ee hadda jira xaaladaha foornada xasilloon.
Iyada oo ku saleysan sababaha kor ku xusan, hadda, shirkado badan oo sibidh ah oo gudaha ah ayaa doorta habka "SNCR + daaweynta isha" si ay u buuxiyaan shuruudaha dhimista qiiqa ammonia oxide, laakiin khasaaraha ka dhashay ayaa ah in dhibaatada baxsadka ammonia laga yaabo inay sii xumaato.
Waqtiga boostada: Meey-07-2022