Chii chinonzi styrene tsvina yekurapa gasi midziyo?

Ndezvipi styrene tsvina gasi kurapwa michina？

1.Mhedziso ye styrene exhaust gasi

Styrene (kemikari formula: C8H8) musanganiswa wakaumbwa nekutsiva atomu rehydrogen reethylene nebenzene. Styrene, inozivikanwawo sevinylbenzene, imvura isina ruvara inopenya ine mafuta, inopfuta, ine chepfu, isinganyungudika mumvura, inonyungudika mu ethanol, ether, inofumurwa kumhepo zvishoma nezvishoma polymerization uye oxidation. Styrene imvura yechipiri inogona kupisa ine hukama hwepakati hwe 0.907, nzvimbo inobvira yega ye490 degrees Celsius, uye nzvimbo yekuvira ye146 degrees Celsius. Styrene zvivakwa zvakadzikama, maindasitiri anonyanya kushandiswa mukugadzirwa kwerabha yekugadzira, ion exchange resin, polyether resin, plasticizer uye mapurasitiki uye mamwe akakosha monomer.

1.Styrene exhaust gasi ngozi

Styrene inotsamwisa uye inodhaka kumaziso nepamusoro pekufema turakiti. Acute chepfu ine yakanyanya kuwanda ye styrene inogona kutsamwisa zvakanyanya maziso uye mucous membranes yekumusoro kufema turakiti, zvichikonzera kurwadziwa kweziso, misodzi, mhino inoyerera, kuhotsira, kurwadziwa kwehuro, kukosora uye zvimwe zviratidzo, zvichiteverwa nemusoro, dzungu, kusvotwa, kurutsa. uye kuneta kwakawanda. Kusvibiswa kweziso ne styrene liquid kunogona kukonzera kupisa. Chepfu isingaperi ye styrene inogona kukonzera neurasthenic syndrome, kutemwa nemusoro, kuneta, kusvotwa, kurasikirwa kwechido, dumbu redumbu, kushushikana, amnesia, kudengenyeka kwemunwe uye zvimwe zviratidzo. Styrene ine mhedzisiro inogumbura pamhepo yekufema, uye kuratidzwa kwenguva refu kunogona kukonzera shanduko yepulmonary shanduko.

1. Styrene tsvina gasi kurapwa midziyo

Kune styrene tsvina gasi rekurapa midziyo, kune inonyanya activated kabhoni adsorption midziyo, ion yekuchenesa michina, midziyo yekupisa, nezvimwe.

(1) activated carbon adsorption midziyo

Activated carbon adsorption midziyo inonyanya kushandiswa kweporous solid adsorbent (inoshanda kabhoni, silica gel, molecular sieve, nezvimwewo) kurapa organic tsvina gasi, kuitira kuti zvinokuvadza zvigone kushambadzwa zvizere kuburikidza nemakemikari bond simba kana molecular gravity, uye adsorbed pa. pamusoro peiyo adsorbent, kuitira kuti uwane chinangwa chekuchenesa organic tsvina gasi. Parizvino, adsorption nzira inonyanya kushandiswa muhombe yemhepo, yakaderera concentration (≤800mg/m3), hapana tunhu tunhu, hapana viscosity, tembiricha yekamuri yakadzika yekutarisa organic tsvina gasi kurapwa.

Activated kabhoni kucheneswa mwero wakakwira (activated kabhoni adsorption inogona kusvika 65% -70%), inoshanda, nyore kushanda, yakaderera mari. Mushure me adsorption saturation, zvinodikanwa kutsiva iyo nyowani activated kabhoni, uye kutsiva iyo activated kabhoni inoda kudhura, uye yakatsiviwa saturated activated kabhoni inodawo kutsvaga nyanzvi dzekurapisa tsvina ine njodzi, uye mutengo wekushanda wakakwirisa.

Activated kabhoni kucheneswa mwero wakakwira (activated kabhoni adsorption inogona kusvika 65% -70%), inoshanda, nyore kushanda, yakaderera mari. Mushure me adsorption saturation, zvinodikanwa kutsiva iyo nyowani activated kabhoni, uye kutsiva iyo activated kabhoni inoda kudhura, uye yakatsiviwa saturated activated kabhoni inodawo kutsvaga nyanzvi dzekurapisa tsvina ine njodzi, uye mutengo wekushanda wakakwirisa.

Yenyama adsorption inonyanya kuitika mukuita kwekubvisa tsvina mumvura uye gasi zvikamu zve zeolite. Iyo porous chimiro che zeolite inopa huwandu hukuru hweiyo chaiyo nzvimbo, kuitira kuti zvive nyore kwazvo kutora uye kuunganidza tsvina. Nekuda kwekubatana kwekubatana kwemamorekuru, nhamba huru yemamorekuru pamadziro e zeolite pore inogona kuburitsa simba regiravhiti rakasimba, sesimba remagineti, kuitira kukwezva kusvibiswa pakati pepakati kusvika pakavhurika.

Pamusoro pekushambadza kwemuviri, kuita kwemakemikari kunowanzoitika pamusoro pe zeolite. Nzvimbo yacho ine chidimbu chidiki chemakemikari anosunga, anoshanda eboka reokisijeni nehydrogen, uye nzvimbo idzi dzine maokisi epasi kana macomplexes anogona kuita kemikari pamwe neadsorbed substances, kuitira kuti isanganise nezvinhu zvinoshambadza uye kuunganidza mukati nepamusoro. ye zeolite.

Inonzwisisika uye inoshanda zeolite kusarudzwa kunogona kuwedzera adsorption kugona kwedhiramu uye kuchengetedza kushandiswa kwesimba. Kuenzaniswa nezvimwe adsorption zvinhu, ine zvinotevera zvakanakira:

Yakasimba adsorption selectivity：

Uniform pore saizi, ionic adsorbent. Inogona kuve yakasarudzika adsorbed zvichienderana nehukuru uye polarity yemorekuru.

Chengetedza desorption simba：

Iyo hydrophobic molecular sieve ine yakakwira Si / Al chiyero haishambadzire mamorekuru emvura mumhepo, ichideredza kurasikirwa kwekupisa kunokonzerwa nekubuda kwemvura.

Yakasimba adsorption kugona：

Iyo adsorption huwandu hwakakura, iyo imwe-nhanho adsorption inoshanda inogona kusvika 90 ~ 98%, uye adsorption kugona kuchiri kusimba pakupisa kwepamusoro.

Kudzivirira kwekushisa kwepamusoro uye kusapisa：

Iine kugadzikana kwakanaka kwekupisa, tembiricha ye desorption i180 ~ 220 ℃, uye tembiricha yekupisa iri kushandiswa inogona kusvika 350 ℃. Desorption yakakwana uye maVOCs ehuwandu hwehuwandu hwakakwira. Iyo zeolite module inogona kumira tembiricha yakakura ye700 ℃, uye inogona kuvandudzwa kunze kwepamhepo tembiricha.

(3)Midziyo yekupisa

Midziyo yekupisa inopisa zvachose iyo inopisa organic komisheni pakupisa kwakanyanya uye mweya wakakwana kuti uparare kuita CO2 neH2O. Iyo nzira yekupisa inokodzera marudzi ese emarara gasi uye inogona kukamurwa kuita yakananga midziyo yekupisa, yekupisa yekupisa michina (RTO) uye catalytic combustion midziyo (RCO).

Yakakwira-concentration exhaust gasi ine emission concentration yakakura kupfuura 5000mg/m³ inowanzobatwa neyakajeka midziyo yekupisa, iyo inopisa maVOCs epoust gasi sehuni, uye tembiricha yekupisa inowanzodzorwa pa1100 ℃, nekurapa kwakanyanya, kunogona kusvika 95% -99%.

Thermal combustion equipment(RTO) inokodzera kugadzirisa kusangana kwe1000-5000mg/m³ exhaust gasi, kushandiswa kwemidziyo yekupisa inopisa, kuwanda kweVOCs mugasi rekubuda kwakaderera, kudiwa kwekushandisa mamwe mafuta kana magasi anopisa, tembiricha inodiwa. Thermal combustion midziyo yakaderera pane yakananga kupisa, ingangoita 540-820 ℃. Thermal combustion midziyo yekurapa kweVOCs tsvina gasi kurapwa kwakakwira, asi kana iyo VOCs gasi remarara riine S, N uye zvimwe zvinhu, gasi rekuburitsa rinogadzirwa mushure mekupisa rinotungamira kutsvina yechipiri.

Kurapwa kwegasi remarara nemidziyo yekupisa inopisa kana kuti catalytic combustion midziyo ine mwero wekuchenesa wakanyanya, asi mari yayo yekudyara uye yekushandisa yakakwira zvakanyanya. Nekuda kweakawanda uye akapararira mapoinzi ekuburitsa, zvakaoma kuwana yepakati muunganidzwa. Incendiary midziyo inoda akawanda seti uye inoda tsoka hombe.Thermal combustion midziyo inonyanya kukodzera kwemaawa makumi maviri nemana inoramba ichishanda uye yakakwira yekumisikidza uye yakagadzika yekupedza gasi mamiriro, isingakodzeri kune inopindirana yekugadzira mutsara mamiriro. Mari yekudyara uye yekushandisa yecatalytic combustion yakadzikira pane iyo yekupisa kwemafuta, asi kugona kwekuchenesa kwakadzikira. Nekudaro, iyo yakakosha simbi inokonzeresa iri nyore kukonzeresa kukundikana kwehupfu nekuda kwekusvibiswa mumhepo yekuburitsa gasi (senge sulfide), uye mutengo wekutsiva iyo catalyst yakanyanya. Panguva imwecheteyo, kutonga kwekupedza gasi kunotora mamiriro akaomarara, zvikasadaro zvinokonzeresa kuvharika kweiyo catalytic combustion chamber uye kukonzera njodzi dzekuchengetedza.

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