Cikakkun bayanai na Tsarin Maganin Maganin Sharar Gas na VOC
Tare da saurin bunƙasa tattalin arziƙin, babban adadin ma'auni na ma'auni na VOCs, a cikin 'yan shekarun nan, mahaɗaɗɗen kwayoyin halitta (VOCs) sun zama ɗaya daga cikin manyan hanyoyin gurɓataccen iska, wanda ya haifar da babbar barazana ga lafiyar ɗan adam da ma'auni na yanayin muhalli, ƙarshen mulkin VOCs ya jawo hankalin jama'a sosai.
Dangane da fasahar jiyya ta iska guda ɗaya ta wanzu, ƙa'idar, kwararar tsari, matsayin bincike da haɓaka haɓakar fasahar haɗaɗɗun haɓakar haɓakar haɓakar haɓakar haɓakar haɓakar haɓakar haɓakar haɓakar haɓakar haɓakar haɓakar haɓakar haɓakar haɓakar haɓakar haɓakar iska mai ɗorewa da ƙarancin maida hankali na VOCs an tattauna dalla-dalla.
VOCs Gas yana haifar da lahani ga yanayi:
(1) Wasu suna da guba da cutar sankara kuma suna jefa lafiyar ɗan adam cikin haɗari;
(2) Hydrocarbons da nitrogen oxides a cikin VOCs suna amsawa don samar da ozone a ƙarƙashin aikin hasken ultraviolet, wanda zai iya haifar da abubuwan da suka faru na photochemical smog na yanayi da kuma cutar da lafiyar ɗan adam da ci gaban shuka;
(3) Shiga cikin samuwar aerosols na biyu a cikin yanayi. Yawancin aerosols na biyu sune ƙananan barbashi, waɗanda ba su da sauƙin daidaitawa. Za su iya zama a cikin yanayi na dogon lokaci kuma suna da ƙarfin watsawa mai ƙarfi zuwa haske, wanda zai iya rage yawan hangen nesa na yanayi;
A halin yanzu, yawancin yanayin yanayi na birane ya nuna gurɓataccen hazo na yanki, ruwan ozone da ruwan acid da sauran halayen gurɓataccen iska guda uku, kuma VOCs na ɗaya daga cikin mahimman abubuwan haɓakawa.
Fasahar jiyya ta gama gari ta VOCs:
Gudanar da VOCs ya kasance cikin gaggawa, fasahar kula da iskar gas ta VOCs na yanzu an kasu kashi biyu:
(1) Sarrafa a tushen, musamman yana nufin matakan hanawa ko rage VOC a matsayin hayaki a cikin hanyar samar da kayayyaki, wanda shine hanya mafi kyau don sarrafa gurbataccen iskar gas. Koyaya, saboda ƙayyadaddun matakin fasaha, ba makawa zai fitar da iskar gas iri-iri ga muhalli, wanda ke da wahalar cimmawa.
(2) Hanyar gudanarwa na sarrafawa da kawar da iskar VOCs a ƙarshen samarwa za a iya raba kashi biyu: fasahar sake amfani da fasahar lalata.
Fasahar farfadowa: shine amfani da hanyoyin jiki don dawo da VOCs gas hanyoyin da ba masu lalacewa ba, galibin hanyar adsorption na carbon da aka kunna, hanyar kwantar da hankali, hanyar maganin membrane da sauransu. Irin wannan hanya ba kawai za ta iya sarrafa fitar da VOCs yadda ya kamata ba, har ma da sake amfani da su na iya adana albarkatu da kuma kawo fa'idar tattalin arziki, don haka ana samun kulawa sosai.
Fasahar lalata: wato, ta hanyar sinadarai ko tsarin halayen halitta don sanya VOCs su lalata iskar iskar iskar gas zuwa abubuwan da ba su da guba ko ƙarancin guba na hanyoyin lalata, manyan fasahohin sune konewa, lalata photocatalytic, fasahar plasma, biodegradation da sauransu.
Fasahar sarrafa iskar gas ta VOCs ita ce tsarin jiyya guda ɗaya, bisa ga takamaiman yanayi da buƙatun VOCs da ke fitar da iskar gas, zaɓi tsarin da ya dace; Saboda nau'ikan VOCs iri-iri, hadaddun kayan aiki, kaddarori daban-daban, a yawancin lokuta, amfani da fasahar tsarkakewa sau da yawa yana da wahala don biyan buƙatun mulki, kuma ba ta da ƙarfi sosai. Yin amfani da fa'idodin fasahar jiyya daban-daban na naúrar, tsarin haɗin gwiwar ba zai iya cika buƙatun watsi kawai ba, har ma ya rage farashin aiki na kayan aiki.
Ƙa'idar fasaha na Zeolite Rotor Concentration + Catalytic Combus Systems:
Fasaha ta farko da aka yi amfani da ita don magance VOCs iskar gas shine hanyar talla, daga cikin abin da aka fi amfani da shi kuma mafi yawanci ana kunna tallan carbon, hanyar adsorption na carbon da aka kunna don tallatawa da kuma kula da hayakin halogen da jerin fasahar benzene ya zama ruwan dare a cikin masana'antar. Babban ka'idar hanyar talla shine amfani da kayan porous tare da takamaiman yanki na musamman azaman adsorbent. Lokacin da VOCs gas ke gudana ta hanyar adsorbent, saboda babban yanki na musamman na adsorbent, kwayoyin VOCs suna kama a kan saman ciki na micropore ta hanyar adsorbent, don cimma tasirin tsarkakewar gas. A matsayin sabon haɗin gwiwa da ingantacciyar fasahar jiyya ta VOCs, zeolite dabaran Rotor Concentrator + fasahar konewa na katalytic an yi amfani da shi sosai a ƙasashen waje.
(1) Nau'in adsorbent
Abubuwan adsorption shine ainihin fasahar dabaran, wanda aka saba amfani da shi mai kunna carbon da zeolite molecular sieve biyu. Kunna carbon yana da wadataccen micropores, babban yanki na musamman, ƙarfin adsorption mai ƙarfi, saurin sauri, ana amfani dashi sosai a cikin fasahar dabaran. Kunna carbon a matsayin adsorbent don bi da sharar gida gas, ta adsorption iya aiki ne babba, low cost, amma ta pore ne sauki toshe, da kuma kunna carbon kanta yana da wani flammability, sauki kama wuta a lokacin da desorption, zai zama wani hadarin aminci, ba ya saduwa da bukatun na aminci samar, za a shafa a aikace aikace-aikace.
Zeolite kwayoyin sieve wani nau'i ne na kayan hydrate tare da takamaiman tsarin kwarangwal na crystalline aluminum silicate karfe gishiri. Tsarin sinadarai na gaba ɗaya shine kamar haka:
[(A102) x - (SiO2) y] - zH20o
Inda M ke wakiltar cation, m yana wakiltar adadin jihohin valence, z yana wakiltar adadin hydration, x da dubu goma sune integers, bayan an kunna tsarin, A. Ruwan da ke cikin kai zai ɓace, sauran abubuwan da suka rage zasu motsa don samar da tsarin keji tare da budewar 3 ~ 10Å.
Ƙarfin zaɓin adsorption na zeolite kwayoyin sieve shine yafi saboda tsarin yau da kullum. Zeolite kwayoyin sieve buɗaɗɗen ƙa'idodin tsari, rarraba iri ɗaya, zaɓin adsorption shine galibi saboda girman buɗewar zeolite daban-daban ya bambanta, a ƙarƙashin yanayi na al'ada, kawai diamita mai ƙarfi na ƙwayoyin cuta ƙasa da ƙwayoyin keɓaɓɓiyar kek ɗin ƙwayoyin cuta za a tallata su ta hanyar sieve.
Hakanan akwai manyan bambance-bambance a cikin tsarin kwarangwal da girman ramuka na nau'ikan sieves na kwayoyin, kuma tsarin kwarangwal na sieves na kwayoyin yana da sauye-sauye a cikin kewayon digiri, don haka wasu kwayoyin da ke da diamita mai karfin kwayoyin dan kadan mafi girma fiye da girman pore kuma za a iya tallata su da shi, amma za a rage karfin adsorption da karfin talla.
Saboda akwai cations a cikin tsarin kuma tsarin kwarangwal yana da caji mara kyau, shine simintin kwayoyin da kansa tare da polarity. Ƙarƙashin ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar cuta.
Saboda haka, sieves na kwayoyin zeolite na iya ɗaukar kwayoyin halitta tare da polarity mai ƙarfi ko sauƙi mai sauƙi amma diamita na motsi ya fi girma fiye da girman su. Saboda sieve kwayoyin yana da tsarin pore na musamman don ya sami aiki na musamman, a ƙarƙashin yanayin zafi mai zafi da ƙananan matsa lamba kuma yana iya kunna ƙarfin talla. A halin yanzu, nau'ikan sieve na kwayoyin da ake amfani da su don tallatawa sune 13X, NAY, mercerite da ZSM-5.
Gabatarwar ka'idar dabarar zeolite
A binciken ƙarasa da cewa: idan sarrafa corrugated da lebur yumbu fiber takarda ta yin amfani da inorganic bonding hanyar yin saƙar zuma dabaran, sa'an nan da zeolite tare da ruwa sha a kan tashar dabaran, da dabaran zai zama absorbent dabaran, bayan gwaje-gwajen tabbatar da cewa adsorption dabaran ga VOCs tsarkakewa magani ne sosai tasiri.
Za'a iya raba yankin maida hankali na mai tsere na zeolite zuwa sassa uku: yankin magani, yankin farfadowa da yankin sanyaya. Mai tseren maida hankali yana ci gaba da gudana a kowane yanki. Ana tace iskar gas na VOCs ta hanyar tacewa kafin tacewa, sannan kuma ta wurin jiyya na na'urar mai gudu.
Ana cire VOCs a cikin yankin jiyya ta hanyar tallatawa na adsorbent, kuma ana fitar da iska mai tsabta daga wurin kulawa na mai gudu mai hankali. The kwayoyin sharar gida VOCs adsorbed a cikin taro mai gudu suna desorbed da mayar da hankali zuwa 5 ~ 15 sau ta zafi iska jiyya a cikin farfadowa yankin.
Ana sanyaya mai mai da hankali mai gudu a cikin yankin sanyaya, kuma iskar ta wurin sanyaya tana zafi kuma ana amfani da ita azaman iska mai sake fa'ida don cimma tasirin tsarkakewa da ceton kuzari.
Catalytic oxidation tsari:
Ana aiwatar da tsarin konewa na catalytic a cikin rukunin konewa na catalytic. Gas ɗin sharar gida yana preheated zuwa 200-400 ° C ta hanyar musayar zafi, sannan ya shiga ɗakin konewa. Lokacin wucewa ta gadon mai kara kuzari, kwayoyin halitta na hydrocarbons da oxygen kwayoyin da ke cikin cakuda iskar gas ana tallata su a saman mai kara kuzari kuma ana kunna su bi da bi. Saboda adsorption na saman yana rage ƙarfin kunnawa na amsawa, hydrocarbons suna da sauri oxidized tare da kwayoyin oxygen a ƙananan yanayin zafi don samar da carbon dioxide da ruwa.
Zeolite Rotor adsorption maida hankali - catalytic konewa tsari:
Ainihin ra'ayi na zeolite dabaran maida hankali catalytic fasaha fasaha, da VOCs a cikin masana'antu sharar gida gas tare da low taro da kuma babban iska girma da aka rabu da kuma mayar da hankali ta hanyar adsorption rabuwa hanya, da kuma gurbataccen iska tare da babban taro da kuma kananan iska girma bayan maida hankali ne bazuwa da kuma tsarkake ta hanyar konewa Hanyar, fiye da aka sani da adsorption rabuwa + konewa bazuwa da tsarkakewa.
Ana shigar da mai gudu mai talla tare da tsarin saƙar zuma a cikin harsashi zuwa yanki na adsorption, sabuntawa da sanyaya, kuma yana juyawa a hankali a cikin saurin juyi na 3 ~ 8 a cikin sa'a ɗaya a ƙarƙashin tuƙin sarrafa motar.
Yankunan uku na adsorption, sabuntawa da sanyaya suna da alaƙa tare da hanyoyin iska na iskar magani, iska mai sanyaya da iska mai sabuntawa. Haka kuma, domin ya hana iska yayyo tsakanin iska channeling da kewaye da adsorption mai gudu da harsashi tsakanin kowane yanki, da bangare farantin da adsorption mai gudu, kewaye da adsorption mai gudu da harsashi suna sanye take da high zafin jiki resistant, ƙarfi resistant fluoro roba sealing abu.
Na'urar fan na 1 tana tafiyar da VOCs masu ɗauke da iskar gas ta cikin yanki a na mai gudu, wanda shine yankin talla. Ana iya cika kayan talla daban-daban a cikin mai gudu bisa ga maƙasudai daban-daban. Yankin VOCs da aka tallata ya zo yankin b don lalatawa tare da jujjuyawar mai gudu. Babban zafin iska yana gudana ta hanyar canja wurin zafi 1 zai lalata VOCs da aka tallata a kan mai gudu, kuma ya isa zafin wuta ta hanyar canja wurin zafi 2, sa'an nan kuma shigar da ɗakin konewa na catalytic don maganin oxidation na catalytic. Tunda mai gudu yana buƙatar adsorbed bayan an lalata shi, ana saita wurin sanyaya c kusa da wurin da za a sanyaya shi ta iska, kuma sanyin iska mai sanyi ya zama iska mai zafi don lalata ta hanyar canja wurin zafi 1.
Domin na yanzu guntu masana'antu, LCD panel masana'antu, semiconductor masana'antu, bugu masana'antu, shafi masana'antu da sauran masana'antu samar filayen. Its kafaffen samar da hanyar dole ne a yi amfani da babban adadin Organic kaushi, amfani da matsayin tsaftacewa wakili, photoresist, tsiri ruwa, diluent, da dai sauransu, a cikin wannan tsari zai samar da wani babban adadin Organic sharar gida gas, wadannan kwayoyin sharar gas ne babban iska girma, low taro na sharar gas, don haka domin nagarta sosai bi da irin wannan sharar gas dauke da VOCs aka gyara, Zeolite na'ura mai juyi adsorption da maida hankali Hanyar ne mafi tasiri magani Hanyar.
Kewayon aikace-aikace na Zuciyar Rotary Concentration + Tsarukan Konewa Katalytic:
Zeolite rotary maida hankali da kuma catalytic konewa tsarin suna da fadi da kewayon aikace-aikace, rufe da fadi da kewayon masana'antu da shaye gas magani yanayi. Wannan sabuwar fasaha ana amfani da ita ne a cikin yanayin jiyya na iskar gas tare da ƙarancin maida hankali da girman iska, kuma ya dace da aikace-aikacen masana'antu iri-iri.
Ɗaya daga cikin manyan abubuwan da ake amfani da su na zeolite rotor concentrator shine ikonsa na magance iskar gas da ba su ƙunshi halogens irin su S, N, Cl, F, da dai sauransu. Idan waɗannan abubuwan sun kasance, za'a iya bi da su a cikin matakin farko kafin konewa don tabbatar da cewa ba a samar da sababbin abubuwan da suka dace ba bayan aikin konewa.
Bugu da ƙari, wurin tafasa na iskar gas ba zai iya zama mai girma ba don a yi amfani da shi yadda ya kamata ta amfani da wannan tsarin. Idan wurin tafasa ya wuce 300 ° C kuma yana nunawa ga iska mai zafi, iskar gas mai sharar gida da aka tallata a kan simintin kwayoyin zeolite ba zai dade ba, yana shafar ingantaccen tsarin jiyya.
Wannan fasaha ta ci gaba ta dace da masana'antu iri-iri, ciki har da tsire-tsire masu sinadarai, wuraren zane-zane, kamfanonin magunguna, masana'antar lantarki, masana'antun kayan aiki, kamfanonin marufi da bugu, da wuraren zane. Yana magance abubuwan kaushi na kwayoyin halitta da iskar gas mai sharar jiki daga waɗannan masana'antu daban-daban, yana mai da shi mafita mai mahimmanci kuma mai mahimmanci ga kamfanoni masu neman haɓaka hanyoyin sarrafa iskar gas ɗin su.
Musamman ma, ana iya ƙara iskar gas ɗin da ba ta dace ba sannan kuma za a iya lalata su ta hanyar zeolites, wanda zai sa su zama 'yan takarar da suka dace don magani. Duk da haka, idan iskar gas ya ƙunshi S, N, Cl, F da sauran abubuwa, za a samar da gurɓataccen gurɓataccen abu bayan konewa, kuma bai dace da maganin konewa na catalytic ba.
A taƙaice, tsarin jujjuyawar zeolite da tsarin konewa na catalytic suna da nau'ikan aikace-aikace da yawa kuma suna ba da ingantaccen ingantaccen mafita ga VOCs bacewar maganin iskar gas a masana'antu daban-daban. Ƙarfinsa don ɗaukar nauyin iska mai girma da ƙananan ƙididdiga ya sa ya zama kadara mai mahimmanci lokacin neman inganta hanyoyin maganin shaye-shaye.