Imininingwane ye-VOC Waste Gas Treatment System Solution
Ngokuthuthuka okusheshayo komnotho, inani elikhulu lamakhompiyutha e-organic volatile VOCs, eminyakeni yamuva nje, ama-volatile organic compounds (VOCs) abe ngomunye wemithombo eyinhloko yokungcoliswa komoya, okubangele usongo olukhulu empilweni yabantu kanye nokulingana kwe-ecosystem, ukuphela kokubusa kwama-VOC kudonse ukunaka okubanzi emphakathini.
Ngokwesisekelo sobuchwepheshe obukhona obukhona bokwelashwa komoya owodwa, umgomo, ukugeleza kwenqubo, isimo socwaningo kanye nethemba lokuthuthuka lobuchwepheshe bokuhlanganisa i-adsorption-catalytic combustion obufanele umthamo omkhulu womoya olahlwayo kanye nokugxila okuphansi kwama-VOC kuxoxwa ngakho ngokuningiliziwe.
I-VOCs Igesi idala ukulimala emkhathini:
(1) Amanye anobuthi futhi anomdlavuza futhi abeka impilo yomuntu engozini;
(2) Ama-hydrocarbon nama-nitrogen oxides kuma-VOC asabela ukuze akhiqize i-ozone ngaphansi kwesenzo sokukhanya kwe-ultraviolet, okungase kuholele ezenzakalweni zentuthu ye-photochemical emkhathini futhi kubeke engozini impilo yabantu nokukhula kwezitshalo;
(3) Bamba iqhaza ekwakhiweni kwama-aerosol esibili emkhathini. Iningi lama-aerosols esibili ayizinhlayiya ezinhle, okungelula ukuzinza. Bangakwazi ukuhlala emkhathini isikhathi eside futhi babe namandla aqinile okuhlakazeka ekukhanyeni, okunganciphisa kakhulu ukubonakala komkhathi;
Njengamanje, imvelo eminingi yomoya wasemadolobheni ibonise ukungcoliswa kobungu besifunda, imvula ye-ozone ne-asidi nezinye izici ezintathu eziyinkimbinkimbi zokungcoliswa komoya, kanti ama-VOC angenye yezinto ezibaluleke kakhulu ezithuthukisa amandla.
Ubuchwepheshe bokwelapha obujwayelekile begesi ye-VOCs:
Ukubusa kwama-VOC bekuphuthumayo, ubuchwepheshe bamanje bokwelashwa kwegesi ye-VOC buhlukaniswe ikakhulukazi izigaba ezimbili:
(1) Ukulawula emthonjeni, kubhekiselwa ngqo ezinyathelweni zokuvimbela noma zokunciphisa ama-VOC njengezinto ezikhishwayo kusixhumanisi sokukhiqiza, okuyindlela engcono kakhulu yokulawula ukungcoliswa kwegesi yemvelo. Kodwa-ke, ngenxa yomkhawulo wezinga lobuchwepheshe, nakanjani izokhipha futhi ivuze ukugxila okuhlukene kwegesi yokukhipha izinto eziphilayo endaweni ezungezile, okunzima ukuyifinyelela.
(2) Indlela yokuphatha yokulawula nokuqeda igesi ye-VOC ekupheleni kokukhiqizwa ingahlukaniswa ngezigaba ezimbili: ubuchwepheshe bokubuyisela kabusha kanye nobuchwepheshe bokubhubhisa.
Ubuchwepheshe bokubuyisela: ukusetshenziswa kwezindlela ezingokwenyama zokubuyisela izindlela zegesi ze-VOCs ezingabhubhisi, ikakhulukazi indlela ye-carbon adsorption ecushiwe, indlela yokufingqa, indlela yokwelapha ulwelwesi nokunye. Lolu hlobo lwendlela alukwazi ukulawula ngempumelelo ukukhishwa kwama-VOC kuphela, kodwa futhi ukugaywa kabusha kungasindisa izinsiza futhi kulethe izinzuzo zezomnotho, ngakho kuthola ukunakwa okwengeziwe.
Ubuchwepheshe bokubhubhisa: okungukuthi, ngenqubo yamakhemikhali noma yebhayoloji yokusabela ukwenza ama-VOC achithe igesi oxidation ukubola abe yizinto ezingezona ezinobuthi noma ezinobuthi obuphansi bezindlela ezibhubhisayo, ubuchwepheshe obuyinhloko ukushiswa, ukuwohloka kwe-photocatalytic, ubuchwepheshe be-plasma, i-biodegradation nokunye.
Ubuchwepheshe bokwelashwa kwegesi yemfucuza ye-VOCs kuyinqubo yokwelapha eyodwa, ngokuya ngesimo esithile kanye nezidingo zokukhishwa kwegesi yemfucuza ye-VOCs, khetha inqubo efanele; Ngenxa yezinhlobonhlobo eziningi zama-VOC, izingxenye eziyinkimbinkimbi, izakhiwo ezihlukene, ezimweni eziningi, ukusetshenziswa kobuchwepheshe bokuhlanza kuvame ukuba nzima ukuhlangabezana nezidingo zokuphatha, futhi akunamnotho kakhulu. Ukusebenzisa izinzuzo zobuchwepheshe obuhlukene bokwelashwa kweyunithi, inqubo yokwelapha ehlanganisiwe ayikwazi nje ukuhlangabezana nezidingo zokukhishwa, kodwa futhi yehlise izindleko zokusebenza zemishini.
Ubuchwepheshe obuyisisekelo be-Zeolite Rotor Concentration + Catalytic Combustion Systems :
Ubuchwepheshe bokuqala obusetshenziswa ukubhekana negesi ye-VOCs indlela ye-adsorption, phakathi kwayo esetshenziswa kakhulu futhi ejwayelekile kakhulu i-activated carbon adsorption, indlela ye-activated carbon adsorption yokukhangisa kanye nokwelapha intuthu ye-halogen kanye nochungechunge lobuchwepheshe be-benzene beluvame kakhulu embonini. Umgomo oyinhloko wendlela ye-adsorption ukusebenzisa izinto ezinezimbobo ezinendawo enkulu ethize njenge-adsorbent. Lapho igesi ye-VOCs igeleza ku-adsorbent, ngenxa yendawo enkulu ethize ye-adsorbent, ama-molecule e-VOCs avaleleke endaweni engaphakathi ye-micropore nge-adsorbent, ukuze afinyelele umphumela wokuhlanzwa kwegesi. Njengenhlanganisela entsha kanye nobuchwepheshe bokwelapha be-adsorption be-VOC obusebenzayo, isondo le-zeolite I-Rotor Concentrator + ubuchwepheshe bokusha busetshenziswe kabanzi emazweni angaphandle.
(1) Uhlobo lwe-adsorbent
I-Adsorption material iwumongo wobuchwepheshe besondo, evame ukusetshenziswa ikhabhoni ecushiwe kanye ne-zeolite molecular sieve two. Ikhabhoni ecushiwe inama-micropores acebile, indawo enkulu ethize, umthamo oqinile we-adsorption, isivinini esisheshayo, isetshenziswa kabanzi kubuchwepheshe bamasondo. Ikhabhoni ecushiwe njenge-adsorbent yokwelapha igesi engcolile, umthamo wayo wokukhangisa mkhulu, izindleko eziphansi, kodwa imbobo yayo kulula ukuyixhuma, futhi ikhabhoni ecushiwe ngokwayo inokuvutha okuthile, kulula ukubamba umlilo lapho i-desorption, izoba yingozi ethile yokuphepha, ayihlangabezani nezidingo zokukhiqiza ukuphepha, izothinteka ekusebenzeni okusebenzayo.
I-Zeolite molecular sieve iwuhlobo lwempahla ye-hydrate enesakhiwo esithile samathambo se-crystalline aluminium silicate metal salt. Ifomula yamakhemikhali evamile imi kanje:
[ (A102) x - (SiO2)y] - zH20o
Lapho u-M emelela i-cation, u-m umele inombolo yezifunda ze-valence, u-z umelela inani le-hydration, u-x kanye nezinkulungwane eziyishumi ziyizinombolo eziphelele, ngemva kokuba isakhiwo senziwe sisebenze, A. Amanzi ekhanda azonyamalala, futhi izingxenye ezisele zizohamba zenze isakhiwo sekheji elinembobo engu-3~10Å.
Umthamo we-adsorption okhethiwe we-zeolite molecular sieve ungenxa yesakhiwo esijwayelekile. Imithetho yokuhlela imbobo ye-zeolite ye-molecular sieve, ukusatshalaliswa okufanayo, ukukhethwa kwe-adsorption kungenxa yokuthi usayizi wokumboza we-zeolite ohlukile uhlukile, ngaphansi kwezimo ezivamile, ububanzi be-molecular ashukumisayo kuphela obungaphansi kwamamolekyuli okumboza kwesisefo samangqamuzana azokhangiswa ngesisefo samangqamuzana.
Kuphinde kube nomehluko omkhulu ekwakhekeni kwamathambo kanye nosayizi wezimbotshana zezinhlobo ezahlukene zezisefo zamangqamuzana, futhi ukwakheka kohlaka lwamathambo ezinhlayiya zamangqamuzana kunokuhlukahluka phakathi kobubanzi bamadigri, ngakho-ke amanye ama-molecule anobubanzi obuguquguqukayo be-molecular obukhulu kancane kunosayizi wembobo nawo angakhangiswa yikho, kodwa izinga lokukhangisa namandla okukhangisa azoncishiswa kakhulu.
Ngenxa yokuthi kukhona ama-cation esakhiweni futhi isakhiwo samathambo sikhokhiswa kabi, yi-sieve ye-molecular ngokwayo ene-polarity. I-cation ye-zeolite ye-molecular sieve izokhiqiza inkambu kagesi eqondile eqinile, ukuze ihehe isikhungo esinegethivu sama-molecule asezindaweni ezishisayo, noma ama-molecule e-polarizable nge-zeolite molecular sieve electrostatic induction ngemva kokuhlukaniswa kwe-polarization.
Ngakho-ke, izisefo ze-molecular zeolite zingakhanga ama-molecule ane-polarity eqinile noma i-polarization elula kodwa ububanzi be-kinetic bukhudlwana kunosayizi wabo wezimbotshana. Ngenxa yokuthi isihlungi se-molecular sinesakhiwo esikhethekile se-pore ukuze sibe nokusebenza okukhethekile, ngaphansi kwesimo sokushisa okuphezulu nokucindezela okuphansi nakho kungadlala amandla ayo okukhangisa. Njengamanje, izinhlobo zesisefo samangqamuzana ezivame ukusetshenziselwa i-adsorption yi-13X, NaY, mercerite ne-ZSM-5.
Ukwethulwa komgomo wesondo le-zeolite
Ucwaningo lwaphetha ngokuthi: uma kucutshungulwe lukathayela futhi flat Ceramic fibre iphepha kusetshenziswa indlela yokubopha inorganic ukwenza isondo lezinyosi, bese i-zeolite enokumuncwa kwamanzi esiteshini sesondo, isondo lizoba isondo elimuncayo, ngemuva kokuhlola kufakazele ukuthi isondo lokukhangisa lokwelashwa kokuhlanzwa kwe-VOC lisebenza kakhulu.
Indawo yokuhlushwa yomgijimi we-zeolite ingahlukaniswa izingxenye ezintathu: indawo yokwelashwa, indawo yokuvuselela kanye nendawo yokupholisa. Umgijimi wokugxilisa ingqondo ugijima ngokuqhubekayo endaweni ngayinye. I-VOCs organic waste gas ihlungwa ngesihlungi sangaphambili, bese kusetshenziswa indawo yokwelapha yedivayisi yomgijimi wokugxilisa ingqondo.
Ama-VOC endaweni yokwelapha asuswa nge-adsorption ye-adsorbent, futhi umoya ohlanzekile ukhishwa endaweni yokwelapha yomgijimi wokuhlushwa. I-organic waste gas VOCs adsorbed kumgijimi wokuhlushwa ayasuswa futhi agxiliswe izikhathi ezi-5 ~ 15 ngokwelashwa komoya oshisayo endaweni yokuvuselela.
Umgijimi ogxilile upholiswa endaweni yokupholisa, futhi umoya odlula endaweni yokupholisa uyashisisa futhi usetshenziswe njengomoya ogaywe kabusha ukuze kuzuzwe umphumela wokuhlanzwa nokonga amandla.
Inqubo ye-Catalytic oxidation:
Inqubo yokuvutha kwe-catalytic yenziwa kuyunithi yokuvutha kwe-catalytic. I-organic waste gas ishisa ngaphambili ku-200-400 ° C ngokusebenzisa isishintshi sokushisa, bese ingena ekamelweni elivuthayo. Lapho udlula embhedeni we-catalyst, ama-molecule wama-hydrocarbon nama-molecule omoya-mpilo engxube yegesi akhangiselwa phezulu kwe-catalyst futhi asebenze ngokulandelana. Ngenxa yokuthi ukukhangiswa kwendawo kunciphisa amandla okwenza kusebenze okusabela, ama-hydrocarbon afakwa i-oxyd ngokushesha ngama-molecule e-oksijini emazingeni okushisa aphansi ukuze akhiqize isikhutha namanzi.
I-Zeolite Rotor adsorption concentration - inqubo yomlilo eyi-catalytic:
Umqondo oyisisekelo wobuchwepheshe bokuvutha obunamandla besondo le-zeolite, ama-VOC egesi yemfucuza yezimboni enezinga eliphansi kanye nevolumu enkulu yomoya ahlukaniswa futhi agxiliswe indlela yokuhlukanisa i-adsorption, nomoya ongcolile onokugxila okuphezulu kanye nevolumu yomoya omncane ngemva kokugxilisa ingqondo ukubola futhi kuhlanjululwe ngendlela yokuvutha, eyaziwa kakhulu ngokuthi i-adsorption purposition and combus method.
Umgijimi we-adsorption onesakhiwo sekhekheba lezinyosi ufakwe kugobolondo elihlukaniswe ngezindawo zokukhangisa, zokuvuselela kanye nokupholisa, futhi lizungeza kancane ngesivinini sokuphenduka oku-3 ~8 ngehora ngaphansi kokushayela kwenjini elawula isivinini.
Izindawo ezintathu zokukhangisa, ukuvuselelwa kanye nokupholisa zixhumene nemigudu yomoya yokwelapha, umoya opholile kanye nomoya wokuvuselela. Ngaphezu kwalokho, ukuze kuvinjwe ukuvuza komoya phakathi komzila womoya kanye nesekelo yomgijimi we-adsorption kanye negobolondo phakathi kwendawo ngayinye, ipuleti lokuhlukanisa kanye nomgijimi we-adsorption, isiyingi somgijimi we-adsorption kanye negobolondo kuhlonyiswe ngezinto ezimelana nezinga lokushisa eliphezulu, okungamelana ne-fluoro ukumelana nerabha.
I-fan engu-1 ishayela ama-VOC aqukethe i-exhaust gas endaweni A yomgijimi, okuyindawo ye-adsorption. Izinto ezihlukile ze-adsorption zingagcwaliswa kumgijimi ngokuya ngezinhloso ezihlukene. Isifunda se-VOCs adsorbed sifika endaweni engu-b ukuze i-desorption ngokuzungezisa komgijimi. Izinga lokushisa eliphezulu eligeleza ngokudluliswa kokushisa elingu-1 lizoncibilikisa ama-VOC adsorbed kumgijimi, futhi lifinyelele izinga lokushisa lokuvutha ngokudluliswa kokushisa okungu-2, bese lingena egumbini lomlilo eliyi-catalytic for catalytic oxidation reaction. Njengoba umgijimi kudingeka adsorbed ngemva kokuncibilika, indawo yokupholisa c ibekwa eduze kwendawo yokuncibilika ukuze ipholiswe ngomoya, futhi umoya opholile ofudumele uba umoya oshisayo wokuncibilika ngokudluliswa kokushisa 1.
Embonini yamanje yama-chip, imboni yephaneli ye-LCD, imboni ye-semiconductor, imboni yokunyathelisa, imboni yokuhlanganisa nezinye izimboni zokukhiqiza. Indlela yayo yokukhiqiza engaguquki kufanele isebenzise inani elikhulu lama-solvents e-organic, asetshenziswa njenge-ejenti yokuhlanza, i-photoresist, i-liquid ehlubulayo, i-diluent, njll., kule nqubo izokhiqiza inani elikhulu legesi le-organic waste, lawa magesi emfucumfucu ephilayo anomthamo omkhulu womoya, ukuhlushwa okuphansi kwegesi yemfucuza, ngakho-ke ukuze uphathe kahle lolu hlobo lwegesi yemfucumfucu equkethe izingxenye ze-VOCtep kanye ne-concentration ye-VOCtep indlela ephumelelayo, samanje.
Uhla Lokusebenza Lwe-Zeolite Rotary Concentration + I-Catalytic Combustion Systems:
I-Zeolite rotary concentration kanye ne-catalytic combustion systems inezinhlobonhlobo zezinhlelo zokusebenza, ezihlanganisa izimboni eziningi kanye nezimo zokwelashwa kwegesi ephumayo. Lobu buchwepheshe obusha busetshenziswa ikakhulukazi ezimeni zokwelashwa kwegesi engcolile ngokugxila okuphansi kanye nomthamo omkhulu womoya, futhi bufaneleka ezinhlobonhlobo zezicelo zezimboni.
Enye yezinzuzo eziyinhloko ze-zeolite rotor concentrator yikhono layo lokuphatha amagesi angcolile angenawo ama-halogen afana ne-S, N, Cl, F, njll. Uma lezi zingxenye zikhona, zingelashwa esigabeni sokuqala ngaphambi kokuvutha ukuze kuqinisekiswe ukuthi azikho izingxenye ezintsha zegesi ekhishwayo ezikhiqizwayo ngemva kwenqubo yomlilo.
Ngaphezu kwalokho, indawo yokubilisa yegesi yokukhipha ayikwazi ukuba phezulu kakhulu ukuze iphathwe ngokuphumelelayo ngokusebenzisa lolu hlelo. Uma iphoyinti lokubilisa lidlula i-300 ° C futhi livezwa emoyeni oshisayo, i-organic waste gas adsorbed ku-zeolite molecular sieve ngeke isetshenziswe isikhathi eside, okuthinta ukusebenza kahle kwenqubo yokwelapha.
Lobu buchwepheshe obuphambili bufanele izimboni ezihlukahlukene, okuhlanganisa izimboni zamakhemikhali, izindawo zokudweba, izinkampani ezithaka imithi, izimboni ze-electronics, abakhiqizi befenisha, izinkampani zokupakisha nokunyathelisa, nezindawo zokudweba. Iphatha ngokuphumelelayo izincibilikisi zemvelo kanye nokukhishwa kwegesi yemfucuza ephilayo evela kulezi zimboni ezihlukahlukene, ikwenze kube yisixazululo esiguquguqukayo nesibalulekile ezinkampanini ezifuna ukuthuthukisa izinqubo zazo zokwelashwa kwegesi edotiwe.
Ngokuphawulekayo, amagesi emfucumfucu angakhangiswa abese ekhishwa ama-zeolite, awenze abantu abafanele ukwelashwa. Kodwa-ke, uma igesi yokukhipha iqukethe i-S, N, Cl, F nezinye izingxenye, ukungcola kwesibili kuzokhiqizwa ngemva kokusha, futhi akufanelekile ukwelashwa komlilo we-catalytic.
Kafushane, i-zeolite rotary concentration kanye ne-catalytic combustion systems inezinhlobonhlobo zezinhlelo zokusebenza futhi inikeza izixazululo ezinokwethenjelwa neziphumelelayo zokwelashwa kwegesi yemfucuza ye-VOC ezimbonini ezihlukahlukene. Ikhono layo lokuphatha umthamo womoya ophezulu kanye nokugxila okuphansi kuyenza ibe yimpahla ebalulekile uma ibheka ukuthuthukisa izinqubo zokwelashwa kwe-exhaust.