Kwintsimi yokukhutshwa kwerhasi ye-flue, i-Guangdong GRVNES Environmental Protection Technology Co., Ltd. iye yaqulunqa i-3 + 1 umaleko kwaye yongeza umaleko we-ammonia yokubalekela i-catalyst yokusombulula into yokubaleka kwe-ammonia xa i-ammonia iphelile ukutshizwa, ukuze ngaphezulu. iammonia etshiziweyo inokukhutshelwa emoyeni emva kokusabela emva kokusebenza.
Unyango lwe-denitration ye-ammonia ukubaleka kwi-GRVNES flue gas yonyango ngaxeshanye ye-denitration ye-ammonia ukubaleka kunye ne-ASC ammonia yokubaleka i-catalyst
TiteknolojiRoadmap
Ngokweemfuno zeprojekthi kunye nemeko yokukhutshwa kwangempela, ukukhuselwa kwendalo yeGreen Valley kuye kwamisela indlela yobugcisa ye "SCR + ASC" ukuhlangabezana neemfuno zeprojekthi.Indlela yobugcisa yeprojekthi iboniswe kumzobo ongezantsi:
SCR+ASC
SCR + ASC Technology Roadmap
Iindleko zokongeza i-nitrogen compounds (NOx) kwi-injini rhoqo zinokuncitshiswa ngaphezu kwe-90% ngokusebenzisa iteknoloji yokunciphisa i-catalytic, kunye neendleko ezisebenzayo ze-nitrogen compounds (NOx) zingancitshiswa ngaphezu kwe-5% ngokusebenzisa iteknoloji yokunciphisa i-catalytic. .Kwaye uxinzelelo lwangasemva luphantsi, kwaye akukho phantse ukwanda koxinzelelo lwangasemva kwinkqubo yokusetyenziswa.
Umzobo woMgaqo wokuSebenza we-SCR Catalys
Umzobo woMgaqo wokuSebenza we-SCR Catalys
Umgaqo wokuSebenza we-ASC Ammonia Escape Catalyst:
I-ASC oxidation catalyst yenziwe ikakhulu sisithwala kunye ne-catalytic coating.Sisixhobo sokucoca i-injini ye-diesel.Eyona njongo yesixhobo kukwenza i-oxidize i-NH3 engaphezulu kwi-dizeli exhaust system nge-O2 ukwenza i-N2 engangcolisi kunye namanzi ngaphandle kwe-injini, ukuze kubonwe ukukhutshwa okucocekileyo kokuphuma kwedizili.Ingasetyenziswa ngokudibanisa ne-diesel particle catcher kunye ne-denitration purification catalyst.
I-Ignition Temperature
Oko kukuthi, iqondo lokushisa apho i-catalyst ifikelela kwi-50% yokuguqulwa kwempumelelo.Ubushushu bomlilo be-ASC ammonia yokuphunyuka kwe-catalyst yi-250 ℃.Ukufezekisa uguqulo oluphezulu, iqondo lokushisa lokukhupha i-injini kufuneka libe phezulu.
Ifom yokuPakisha
Inokuthi ifakwe ngokwahlukileyo okanye ihlanganiswe ne-SCR, enokuthi ihlangabezane neemfuno zokusebenza kakuhle kwenkonzo.
uMgangatho wokuPhuma:
Izinga lokuphunyuka kwe-ammonia ≤ 3ppm
Ukunciphisa ukukhutshwa kwe-NOx vs ungcoliseko lwe-ammonia kushishino lwesamente
Ngenxa yokuba uphando malunga nenkqubo yokutshisa i-sement kiln isekwimeko ebanzi kakhulu, kusekho iintsilelo ezininzi kwiimeko zokusebenza kwi-oven kunye nendlela yokwenza i-nitrogen oxides kwishishini le-samente yasekhaya.Mininzi imithombo yenitrogen oxides kunye nezinto ezininzi ezinefuthe.Kwintsimi yetekhnoloji yokunciphisa i-nitrogen oxide emission, itekhnoloji ekhoyo ekhoyo ibandakanya i-SCR, i-SNCR, ukutshiswa kwesiteji kunye nokunye.
Itekhnoloji yokunciphisa i-SCR ekhethiweyo yeyona nto iphambili yetekhnoloji emhlabeni.Nge-ammonia okanye i-urea njenge-agent ye-denitration kunye ne-catalytic selective absorption phantsi kwesenzo se-catalyst kwi-tower absorption tower, izinga le-denitration linokufikelela ngaphezu kwe-90%.
Itekhnoloji ye-SNCR isebenzisa indawo efanelekileyo yobushushu (900 ℃ ~ 1100 ℃) kwisithando somlilo sokubola ukujova umxube we-ammonia kuyo.Kulo bushushu, i-ammonia (NH3) isabela nge-NOx kwi-flue gas ukuvelisa i-N2 kunye ne-H2O.Izinga le-denitration ngokuqhelekileyo li-40% - 60%, ukusetyenziswa kwe-ammonia kukhulu, kwaye izinga lokuphunyuka kwe-NH3 liphezulu, elinokuba ngaphezu kwe-3 amaxesha e-SCR.
Okwangoku, amashishini esamente asekhaya agqibe ngokusisiseko ukwakhiwa kwe-SNCR denitration.Le teknoloji isebenzisa isixa esikhulu se-ammonia njenge-arhente yokunciphisa i-NOx.I-ammonia kulula ukuvuza kwinkqubo yokuvelisa, ukuthutha, ukugcinwa kunye nokusetyenziswa, okukhokelela kungcoliseko olunzulu kwimo engqongileyo.
Ke ngoko, ishishini langoku lesamente lijongene nengxaki ephikisanayo noko.Ukusetyenziswa kwe-ammonia denitration kunokunciphisa ukukhutshwa kwe-nitrogen oxide, kodwa ingxaki "yokusinda kwe-ammonia" kunzima ukuyicombulula.Ngaphezu koko, ukuveliswa kwe-ammonia ngokwayo yinkqubo yokusetyenziswa kwamandla aphezulu kunye nokungcola okuphezulu, kunye nokuthuthwa, ukugcinwa kunye nokusetyenziswa kuya kubangela "ukuphunyuka kwe-ammonia".
Ngokusekwe kwiingxaki ezinjalo, amashishini esamente kufuneka aqinise ulawulo lokuthuthwa kwe-ammonia kunye nokugcinwa, ukuphucula ukusetyenziswa kakuhle kwe-ammonia kunye nokunciphisa "ukuphunyuka kwe-ammonia".
Ingaba i-Amoniya iza kuPhenyuka phi?
Phantsi kwemeko yangoku yokhuseleko lokusingqongileyo, ukunciphisa ukukhutshwa kongcoliseko kumashishini esamente kuyimfuno engenakuphepheka yemo engqongileyo yangaphandle;Kwangaxeshanye, ngokuphindaphindwa kobuchwephesha boshishino lwesamente, ukusetyenziswa kwamandla aphantsi kunye nemigangatho yokukhutshwa kwemveliso ikwayindlela engenakuphepheka yokuphuculwa kweshishini.
Kumashishini e-samente, ukusuka kumbono wezoqoqosho, iindleko zokuguqulwa kwe-SCR iteknoloji yodwa kulindeleke ukuba ibe ngaphezu kwe-30 yezigidi.Ukongeza, ixabiso le-catalyst liphezulu kakhulu kunelo "SNCR + unyango lomthombo".Okwesibini, ngesiseko sokutsha kwe-nitrogen ephantsi kunye nokutsha okuhleliweyo, okudityaniswe ne-SNCR, amanye amashishini angakwazi ukuhlangabezana nemigangatho yangoku yokukhutshwa kwe-NOx phantsi kweemeko ze-kiln ezizinzile.
Ngokusekelwe kwezi zizathu zingasentla, okwangoku, amashishini amaninzi e-samente asekhaya akhetha indlela "ye-SNCR + yonyango yomthombo" ukuhlangabezana neemfuno zokunciphisa ukukhutshwa kwe-ammonia oxide, kodwa ukungonakali okubangelwa kukuba ingxaki yokuphunyuka kwe-ammonia inokuba nzima.
Ixesha lokuposa: May-07-2022