Iinkcukacha zeSicombululo seNkqubo yoNyango lweGesi ye-VOC
Ngophuhliso olukhawulezayo loqoqosho, inani elikhulu leekhompawundi eziguquguqukayo ze-VOC, kwiminyaka yakutshanje, iikhompawundi eziguquguqukayo ze-organic (VOCs) ziye zaba zezona mithombo ziphambili zongcoliseko lomoya, ezibangele isoyikiso esikhulu kwimpilo yabantu kunye nokulungelelana kwe-ecosystem, ukuphela kolawulo lwe-VOC kutsale ingqalelo eluntwini.
Ngokwesiseko setekhnoloji ekhoyo yonyango lwethekhnoloji yomoya omnye, umgaqo, ukuhamba kwenkqubo, ubume bophando kunye nethemba lophuhliso lwetekhnoloji edityanisiweyo ye-adsorption-catalytic combustion elungele umthamo omkhulu womoya wenkunkuma kunye noxinzelelo oluphantsi lwee-VOC zixoxwa ngokweenkcukacha.
Ii-VOCs Irhasi ibangela ubungozi kwiatmosfera:
(1) Ezinye ziyityhefu kunye ne-carcinogenic kwaye zibeka impilo yabantu engozini;
(2) I-Hydrocarbons kunye ne-nitrogen oxides kwii-VOCs zisabela ukuvelisa i-ozone phantsi kwesenzo sokukhanya kwe-ultraviolet, enokukhokelela kwiziganeko ze-atmospheric photochemical smog kunye nomngcipheko wempilo yabantu kunye nokukhula kwezityalo;
(3) Thatha inxaxheba ekubunjweni kwee-aerosol zesibini kwi-atmosphere. Uninzi lwee-aerosols zesibini ziincinci ezintle, ezingelula ukuzinza. Ziyakwazi ukuhlala kwi-atmosfera ixesha elide kwaye zibe namandla amakhulu okusasaza ekukhanyeni, okunokunciphisa kakhulu ukubonakala kwe-atmospheric;
Okwangoku, uninzi lwemekobume yomoya edolophini ibonise ungcoliseko lwenkungu yengingqi, i-ozone kunye nemvula eneasidi kunye nezinye iimpawu ezintathu ezintsonkothileyo zongcoliseko lomoya, kwaye iiVOCs yenye yezona arhente zibalulekileyo zokukhuthaza.
Ii-VOCs zegesi yetekhnoloji yonyango eqhelekileyo:
Ulawulo lwee-VOCs lungxamisekile, itekhnoloji yonyango yegesi ye-VOC yangoku yahlulwe yangamacandelo amabini:
(1) Ulawulo kumthombo, lubhekiselele ngokuthe ngqo kumanyathelo okuthintela okanye ukunciphisa i-VOCs njengokukhutshwa kwikhonkco lemveliso, eyona ndlela yokulawula ungcoliseko lwegesi yenkunkuma. Nangona kunjalo, ngenxa yokuthintelwa kwinqanaba lobugcisa, ngokuqinisekileyo iya kukhupha kwaye ivuze imilinganiselo eyahlukeneyo ye-organic exhaust gas kwimo engqongileyo, ekunzima ukuyifeza.
(2) Indlela yokulawula yokulawula kunye nokuphelisa i-VOCs igesi ekupheleni kwemveliso ingahlulwa ibe ngamacandelo amabini: iteknoloji yokuhlaziya kunye nokutshatyalaliswa kweteknoloji.
Itekhnoloji yokubuyisela: kukusetyenziswa kweendlela zomzimba ukubuyisela iindlela ze-VOCs zegesi ezingonakalisi, eyona ndlela isebenzayo yekhabhoni ye-adsorption, indlela yokudibanisa, indlela yonyango ye-membrane njalo njalo. Olu hlobo lwendlela alukwazi kuphela ukulawula ngokufanelekileyo ukukhutshwa kwee-VOC, kodwa ukuphinda kusetyenziswe kwakhona kunokugcina izixhobo kwaye kuzise inzuzo yezoqoqosho, ngoko ifumana ingqalelo engakumbi nangakumbi.
Itekhnoloji yokutshatyalaliswa: oko kukuthi, ngenkqubo yekhemikhali okanye yebhayoloji yokusabela ukwenza i-VOCs inkunkuma yegesi oxidation ukubola kwizinto ezingenayo ityhefu okanye izinto ezinetyhefu ephantsi yeendlela ezitshabalalisayo, ubugcisa obuphambili kukutsha, ukuthotywa kwe-photocatalytic, iteknoloji yeplasma, i-biodegradation njalo njalo.
I-VOCs iteknoloji yokucoca igesi yenkunkuma yinkqubo yonyango enye, ngokwemeko ethile kunye neemfuno zokukhutshwa kwegesi yenkunkuma ye-VOCs, khetha inkqubo efanelekileyo; Ngenxa yoluhlu olubanzi lwee-VOCs, amacandelo anzima, iipropati ezahlukeneyo, kwiimeko ezininzi, ukusetyenziswa kwetheknoloji yokucoca kudla ngokuba nzima ukuhlangabezana neemfuno zolawulo, kunye noqoqosho kakhulu. Ukusebenzisa iingenelo zeteknoloji yonyango yeyunithi, inkqubo yonyango edibeneyo ayikwazi ukuhlangabezana neemfuno zokukhutshwa, kodwa nokunciphisa iindleko zokusebenza kwezixhobo.
Itekhnoloji yomgaqo weZeolite Rotor Concentration + Catalytic Combustion Systems:
Itekhnoloji yokuqala esetyenziselwa ukujongana negesi ye-VOCs yindlela ye-adsorption, phakathi kwayo eyona nto isetyenziswa kakhulu kwaye iqheleke kakhulu yi-actiated carbon adsorption, indlela ye-carbon adsorption esebenzayo yokubhengezwa kunye nokunyangwa komsi we-halogen kunye nochungechunge lwe-benzene yetekhnoloji ixhaphake kakhulu kwishishini. Umgaqo ophambili wendlela ye-adsorption kukusebenzisa izinto ezixubileyo ezinommandla omkhulu ocacileyo njenge-adsorbent. Xa igesi ye-VOCs ihamba nge-adsorbent, ngenxa yendawo enkulu yendawo ye-adsorbent, ii-molecule ze-VOCs zibanjwe kwindawo yangaphakathi ye-micropore yi-adsorbent, ukwenzela ukuba kuphunyezwe umphumo wokuhlanjululwa kwegesi. Njengomdibaniso omtsha kunye netekhnoloji yonyango ye-adsorption ye-VOCs esebenzayo, ivili le-zeolite i-Rotor Concentrator + itekhnoloji yokutshisa i-catalytic isetyenziswe ngokubanzi kumazwe angaphandle.
(1) Uhlobo lwe-adsorbent
Imathiriyeli ye-Adsorption ngundoqo wetekhnoloji yevili, esetyenziswa ngokuqhelekileyo ikhabhoni esebenzayo kunye ne-zeolite molecular sieve ezimbini. Ikhabhoni esebenzayo ine-micropores etyebileyo, indawo enkulu yendawo ethile, umthamo owomeleleyo we-adsorption, isantya esikhawulezayo, isetyenziswa ngokubanzi kwitekhnoloji yevili. Ikhabhoni esebenzayo njenge-adsorbent yokuphatha igesi engcolileyo, umthamo wayo we-adsorption mkhulu, ixabiso eliphantsi, kodwa i-pore yayo ilula ukuyivala, kunye nekhabhoni esebenzayo ngokwayo inokutsha okuthile, kulula ukubamba umlilo xa i-desorption, iya kwenza ingozi ethile yokhuseleko, ayihambelani neemfuno zemveliso yokhuseleko, iya kuchaphazeleka kwisicelo esisebenzayo.
I-Zeolite ye-molecular sieve luhlobo lwezinto ze-hydrate kunye nesakhiwo esithile samathambo e-crystalline aluminium silicate metal salt. Ifomula yekhemikhali ngokubanzi ihamba ngolu hlobo lulandelayo:
[ (A102) x - (SiO2)y] - zH20o
Apho i-M imele i-cation, i-m imele inani le-valence states, i-z imele inani le-hydration, i-x kunye ne-10 lamawaka zii-integers, emva kokuba isakhiwo sisebenze, A. Amanzi entloko aya kunyamalala, kwaye amacandelo aseleyo aya kuhamba enze isakhiwo sekheji kunye ne-aperture ye-3 ~ 10Å.
Umthamo okhethiweyo we-adsorption we-zeolite molecular sieve ikakhulu ngenxa yesakhiwo esiqhelekileyo. Zeolite imolekyuli yemolekyuli ye-sieve i-aperture ye-aperture yemithetho, ukusabalalisa okufanayo, ukhetho lwe-adsorption lubangelwa ubukhulu becala le-zeolite eyahlukileyo, phantsi kweemeko eziqhelekileyo, kuphela i-molecular dynamic diameter engaphantsi kwe-molecular sieve aperture molekyuli iya kubhengezwa sisihluzo se-molecular.
Kukwakho umahluko omkhulu kulwakhiwo lwamathambo kunye nobukhulu bepore beentlobo ezahlukeneyo zeesefu zemolekyuli, kwaye ukwakheka kwamathambo eeseyi zemolekyuli kunokwahluka phakathi koluhlu lweedigri, ngoko ke ezinye iimolekyuli ezinomthamo oguqukayo wemolekyuli mkhulu kancinci kunobungakanani bepore nazo zinokubhengezwa yiyo, kodwa izinga le-adsorption kunye nomthamo we-adsorption uya kuncitshiswa kakhulu.
Ngenxa yokuba kukho i-cations kwisakhiwo kunye nesakhiwo se-skeleton sihlawuliswa kakubi, yi-sieve ye-molecular ngokwayo kunye ne-polarity. I-cation ye-zeolite ye-molecular sieve iya kuvelisa intsimi yombane eyomeleleyo, ukwenzela ukutsala iziko elibi leemolekyuli ze-polar, okanye iimolekyuli ze-polarizable nge-zeolite molecular sieve electrostatic induction emva kwe-polarization.
Ke ngoko, iisefu zemolekyuli ze-zeolite zinokubhengeza iimolekyuli ezine-polarity eyomeleleyo okanye i-polarization elula kodwa ububanzi bekinetic bukhulu kancinci kunobukhulu bepore. Ngenxa yokuba i-molecular sieve inesakhiwo esikhethekileyo se-pore ukwenzela ukuba ibe nokusebenza okukhethekileyo, phantsi kwemeko yokushisa okuphezulu kunye noxinzelelo oluphantsi kunokudlala amandla ayo adsorption. Okwangoku, iintlobo ze-molecular sieve ehlala isetyenziselwa i-adsorption yi-13X, i-NaY, i-mercerite kunye ne-ZSM-5.
Intshayelelo yomgaqo wevili le-zeolite
Uphononongo lugqibe kwelokuba: ukuba i-caramic fayibha esetyenzisiweyo kunye nephepha le-doumic fiber usebenzisa indlela ye-inorganic bonding ukwenza ivili lobusi, kwaye ke i-zeolite ngokufunxwa kwamanzi kwijelo levili, ivili liya kuba livili elifunxayo, emva kokuba iimvavanyo zibonise ukuba ivili le-adsorption ye-VOCs yokucoca unyango lusebenza kakhulu.
Ummandla woxinaniso womgijimi we-zeolite unokwahlulwa ube ngamacandelo amathathu: indawo yonyango, indawo yokuhlaziya kunye nendawo yokupholisa. Imbaleki yoxinaniso ibaleka ngokuqhubekayo kwindawo nganye. I-VOCs organic inkunkuma yegesi ihluzwa ngesihluzo sangaphambili, kwaye emva koko ngendawo yonyango yesixhobo soxinaniso sembaleki.
Ii-VOC kwindawo yonyango zisuswe nge-adsorption ye-adsorbent, kwaye umoya ococekileyo ukhutshwe kwindawo yonyango yomgijimi woxinaniso. I-VOCs yegesi yenkunkuma yezinto eziphilayo ezibhengezwayo kwi-concentration runnner i-desorbed kwaye igxininiswe kumaxesha angama-5 ~ 15 ngonyango lomoya oshushu kwindawo yokuvuselela.
Imbaleki egxininisiweyo ipholiswa kwindawo yokupholisa, kwaye umoya kwindawo yokupholisa iyafudunyezwa kwaye isetyenziswe njengomoya ohlaziyiweyo ukufezekisa umphumo wokucocwa kunye nokonga amandla.
Inkqubo ye-Catalytic oxidation:
Inkqubo yokutshisa i-catalytic iqhutyelwa kwiyunithi yokutshisa i-catalytic. Irhasi yenkunkuma yezinto eziphilayo ifudunyezwa kwi-200-400 °C ngokutshintsha ubushushu, ize ingene kwigumbi lokutsha. Xa udlula kwibhedi ye-catalyst, iimolekyuli ze-hydrocarbons kunye neemolekyuli ze-oksijini kumxube wegesi zibhengezwa kumphezulu we-catalyst kwaye zisebenze ngokulandelelana. Ngenxa yokuba i-adsorption yomhlaba inciphisa amandla okusebenza kokusabela, ii-hydrocarbons zixutywa ngokukhawuleza nge-oxygen molekyuli kubushushu obuphantsi ukuvelisa i-carbon dioxide kunye namanzi.
Zeolite Rotor adsorption yoxinaniso-inkqubo yokutshisa i-catalytic:
Umbono osisiseko we-zeolite wheel concentration ye-catalytic combustion technology, iiVOCs kwirhasi yenkunkuma yemizi-mveliso enoxinzelelo oluphantsi kunye nomthamo omkhulu womoya zohlulwe kwaye zigxininiswe yindlela yokwahlula i-adsorption, kunye nomoya ongcolisekileyo onoxinzelelo oluphezulu kunye nomthamo omncinci womoya emva koxinzelelo lokubola kunye nokucocwa ngendlela yokutshisa, eyaziwa ngokuba yi-adsorption comburation method kunye nokwahlulahlulwa kwe-adsorption.
Imbaleki ye-adsorption enesakhiwo se-honeycomb ifakwe kwigobolondo eyahlulwe kwi-adsorption, ukuvuselelwa kunye neendawo zokupholisa, kwaye ijikeleza ngokucothayo ngesantya se-3 ~ 8 revolutions ngeyure phantsi kokuqhutywa kwesantya sokulawula i-motor.
Iizowuni ezintathu ze-adsorption, ukuvuselelwa kunye nokupholisa zidibene ngokulandelelana kunye neepaseji zomoya zomoya wonyango, umoya opholileyo kunye nomoya wokuhlaziya. Ngaphezu koko, ukuze kuthintelwe ukuvuza komoya phakathi komjelo womoya kunye nesangqa sembaleki ye-adsorption kunye neqokobhe phakathi kwendawo nganye, ipleyiti yokwahlulahlula kunye nembaleki ye-adsorption, umjikelezo wembaleki ye-adsorption kunye neqokobhe lixhotyiswe ngokumelana nobushushu obuphezulu, imathiriyeli yokutywina yerabha ye-fluoro ekwaziyo ukunyibilika.
I-1 fan iqhuba ii-VOCs eziqulethe igesi yokukhupha kwindawo yembaleki, eyona ndawo ye-adsorption. Izinto ezahlukeneyo ze-adsorption zingazaliswa kumgijimi ngokweethagethi ezahlukeneyo. Ummandla we-VOCs adsorbed uza kwingingqi ye-b ukuze i-desorption kunye nokujikeleza kwembaleki. Ubushushu obuphezulu bokuhamba komoya ngokugqithiselwa kobushushu 1 kuya kutshabalalisa i-VOCs adsorbed kwimbaleki, kwaye ifikelele kubushushu bomlilo ngokugqithisela ubushushu obu-2, kwaye emva koko ungene kwigumbi lokutshisa i-catalytic ye-catalytic oxidation reaction. Kuba imbaleki idinga ukubhengezwa emva kokugxothwa, indawo yokupholisa c ibekwe ecaleni kwendawo yokulahla ukuze ipholiswe ngumoya, kwaye umoya opholileyo ofudumeleyo uba ngumoya oshushu wokudambisa ngokufuduswa kobushushu 1.
Kwimveliso yetshiphu yangoku, ishishini lephaneli yeLCD, ishishini lesemiconductor, ishishini loshicilelo, ishishini lokugquma kunye namanye amacandelo emveliso. Indlela yayo yokuvelisa esisigxina kufuneka isebenzise inani elikhulu lezinyibilikisi eziphilayo, ezisetyenziswa njenge-arhente yokucoca, i-photoresist, i-ejenti yokuhlubula, i-diluent, njl., kule nkqubo iya kuvelisa inani elikhulu legesi yenkunkuma yezinto eziphilayo, le gesi yenkunkuma ephilayo inomthamo omkhulu womoya, i-concentration ephantsi ye-gas yenkunkuma, ngoko ukwenzela ukuphatha ngokufanelekileyo olu hlobo lwegesi yenkunkuma equlethe i-VOCs ye-rotor indlela esebenzayo kunye ne-concentration ye-VOCs ye-concentration ye-Zesorp ekhoyo.
Uluhlu lweSicelo seZeolite Rotary Concentration + Catalytic Combustion Systems:
I-Zeolite i-concentration ye-rotary kunye ne-catalytic combustion systems inoluhlu olubanzi lwezicelo, ezigubungela uluhlu olubanzi lwamashishini kunye neemeko zonyango zokukhupha igesi. Ubuchwephesha obutsha busetyenziswa kakhulu kwiimeko zonyango lwegesi yenkunkuma kunye noxinzelelo oluphantsi kunye nomthamo omkhulu womoya, kwaye ifanelekile kwizicelo ezahlukeneyo zoshishino.
Enye yeenzuzo eziphambili ze-zeolite rotor concentrator yikhono layo lokuphatha i-gas yenkunkuma engenazo i-halogens ezifana ne-S, N, Cl, F, njl. Ukuba ezi zixhobo zikhoyo, zinokuthi ziphathwe kwisigaba sangaphambi kokutshisa ngaphambi kokutshisa ukuqinisekisa ukuba akukho zixhobo ezintsha zegesi eziphumayo eziveliswayo emva kwenkqubo yokutsha.
Ukongezelela, indawo yokubilisa yegesi yokukhupha ayinakuba phezulu kakhulu ukwenzela ukuba iphathwe ngokufanelekileyo ngokusebenzisa le nkqubo. Ukuba indawo yokubilisa idlula i-300 ° C kwaye ibonakaliswe emoyeni oshushu, i-organic waste gas adsorbed kwi-zeolite molecular sieve ayiyi kuchithwa ixesha elide, echaphazela ukusebenza kakuhle kwenkqubo yokonyango.
Obu buchwephesha buhambele phambili bufanelekile kumashishini ahlukeneyo, aquka amaziko emichiza, amaziko okupeyinta, iinkampani ezixuba amayeza, imizi-mveliso yombane, abenzi befenitshala, iinkampani zokupakisha nezokushicilela, kunye nezixhobo zokupeyinta. Iphatha ngokufanelekileyo izinyibilikisi zendalo kunye nokukhutshwa kwerhasi yenkunkuma evela kula mashishini ahlukeneyo, iyenza ibe sisisombululo esiguquguqukayo nesixabisekileyo kwiinkampani ezijonge ukuphucula iinkqubo zabo zokunyanga inkunkuma.
Ngokucacileyo, iigesi zenkunkuma zinokubhengezwa kwaye emva koko zihlanjululwe zii-zeolites, zibenze babe ngabaviwa abafanelekileyo bonyango. Nangona kunjalo, ukuba i-gas exhaust iqulethe i-S, N, Cl, F kunye namanye amacandelo, ukungcola okwesibini kuya kuveliswa emva kokutsha, kwaye akufanelekanga kunyango lokutshisa i-catalytic.
Isishwankathelo, i-zeolite rotary concentration kunye ne-catalytic combustion systems inoluhlu olubanzi lwezicelo kwaye ibonelela ngezisombululo ezithembekileyo nezisebenzayo kwii-VOCs zokunyanga igesi yenkunkuma kumashishini ahlukeneyo. Ikhono layo lokusingatha umthamo womoya ophezulu kunye nokugxininiswa okuphantsi kwenza kube yinto ebalulekileyo xa ujonge ukuphucula iinkqubo zonyango zokukhupha.