Coking Industry VOCs Comprehensive Treatment Solution

Ma organic organic compounds (VOCs) ndi otsogola ofunikira a m'badwo wa O3, ndipo zina mwazinthu zawo zimakhala ndi carcinogenicity yamphamvu. M'zaka zaposachedwa, ndende ya O3 mumlengalenga wapadziko lonse lapansi yawonetsa mayendedwe akuwonjezeka chaka ndi chaka, ndipo vuto la kuwonongeka kwa O3 lakula kwambiri, lomwe likugwirizana kwambiri ndi kuchuluka kwa mpweya wa VOC. M'malo ambiri oyipitsa ma VOCs, kupanga coking ndi chimodzi mwazinthu zofunika kwambiri zoipitsa. Popanga coking, vuto lotulutsa mpweya wa VOCs limakhala lodziwika bwino, lomwe lili ndi magwero angapo otulutsa, zowononga zambiri komanso kawopsedwe kambiri, kutulutsa kosalongosoka ndi mawonekedwe ena, kuipitsidwa kwakukulu kwa chilengedwe chamlengalenga. Poona chithandizo cha coking VOCs zinyalala gasi, mabizinezi zogwirizana ayesa ndi kufufuza, zofala kwambiri ndi "atatu siteji kutsuka + mayamwidwe (kuchotsa) Ufumuyo" ndondomeko, siteji atatu kutsuka + RTO ndondomeko, nayitrogeni kusindikiza + zoipa kupanikizika kuchira ndondomeko, zinyalala kubwereza kuyaka ndi njira zina mankhwala. Ndi kutulutsidwa kwa "Volatile organic compounds Emission Control Standards for Industrial Enterprises", "Coking Chemical Industry Pollutant Emission Standards" ndi mfundo zina, coking VOCs kasamalidwe ndizofunikira kwambiri, malinga ndi makhalidwe a VOCs amachotsa mpweya m'njira zosiyanasiyana kuti achite mozama chithandizo, kuti akwaniritse miyezo yokhazikika komanso yokhazikika ndi vuto lachangu kwa mabizinesi.

Kusanthula kwa magwero akuluakulu a VOCs pamakampani ophika

VOCs mu makampani coking makamaka amachokera mankhwala kupanga kuchira ndondomeko: chachikulu kuipitsa gwero la ng'oma ozizira chitoliro ndi kukhetsa chitoliro cha phula, ammonia ndi akasinja osungira, makamaka kupanga benzo [a] pyrene, hydrogen cyanide, phenols, naphthol, non-methane okwana hydrocarbon, ammonia, ndi hydrogen sulfide sulfide gawo lalikulu la hydrogen sulfide. malo obwezeretsanso desulfurization ndi mapaipi otulutsa a thanki iliyonse yosungira, yomwe makamaka ndi ammonia ndi hydrogen sulfide. Magwero akuluakulu oipitsa ammonium sulfide ndi ammonium sulfide kuyanika malo, ammonium sulfide solutions, ammonia storage tanks, etc., makamaka amatulutsa tinthu tating'ono, ammonia, ndi zina zambiri. Zomwe zimayambitsa kuipitsidwa kwa gawo lotsuka la benzene ndi crudefined benzene rectification unit, mafuta a tank processing pipe ndi zina zotero. makamaka amatulutsa benzene ndi benzene mndandanda, ma hydrocarbon, ndi zina zotere. Ma VOC awa alinso ndi poizoni komanso zovulaza, zoyaka komanso zophulika. Chifukwa cha njira yayitali komanso yovuta yamakampani ophika, zigawo za VOC ndizosiyanasiyana komanso zovuta kuzisonkhanitsa ndikuwongolera. Nthawi zambiri, thanki yosungiramo yomwe imakhala ndi mpweya wabwino komanso mpweya wochepa wa okosijeni umatenga njira yowonongeka yowonongeka;

Chifukwa cha kuchuluka kwa okosijeni, mpweya wobalalitsa sungathe kulowa munjira yobwezeretsa mpweya, motero umathandizidwa kwambiri ndi njira yosonkhanitsira obalalitsa ndikubwerera pakati pakuwotcha kwa ng'anjo ya coke kapena kuyatsa kwina kwa okosijeni. Kutumiza mtunda wautali kwa mpweya wa VOCs kumakhala ndi zovuta monga kuthamanga kwapansi ndi naphthol mu gasi wonyansa ndikosavuta kuwunikira ndikuletsa payipi. Panthawi imeneyi, ndi bwino kumanga chowotchera chosiyana.

Xinjieyuan Technology VOCs Chithandizo Comprehensive Solutions

Mu ndondomeko yonse yophika, kuchira kwa mankhwala ndi msonkhano womwe umapanga ma VOCs ambiri, makamaka m'dera lachiwongoladzanja ndizovuta kwambiri, kotero kuti kayendetsedwe ka VOCs kameneka kamakhala kokhazikika m'deralo. Pali zida zambiri zomwe zimakhudzidwa ndi malo obwezeretsanso, ndipo mpweya wotulutsa matanki osiyanasiyana umalumikizidwa mwachindunji ndi mlengalenga, zomwe zimapangitsa fungo lalikulu. Ammonia, phula, naphthalene, phenol, cyanide, methane hydrocarbons ndi zinthu zina zidzathawira mumlengalenga, makamaka benzene, hydrogen sulfide ndi zinthu zina, komanso zimakhala ndi poizoni wamphamvu, kuipitsidwa kwa chilengedwe, zimakhudza kwambiri chilengedwe komanso thanzi la ogwira ntchito ozungulira. Xinjieyuan VOCs mabuku mankhwala njira, malinga ndi coking ogwira ntchito coking, kuyeretsedwa mpweya ndi kuchira mankhwala kupanga, yosungirako mankhwala, phenol cyanide okhutira madzi otayira mankhwala a njira zosiyanasiyana za VOCs makhalidwe ndi malo kumaliseche ndizosiyana, The VOCs mankhwala ndondomeko kutulutsidwa ndi dongosolo kupanga mankhwala anawagawa zonse zoipa kuthamanga kuchira bwino, kutopa mpweya, kusungirako mpweya wabwino kukumana ndi luso mpweya RTOmbucine kukumana ndi ukadaulo wa RTOmbucine. kukhazikika kosiyanasiyana, zochitika zosiyanasiyana zogwiritsira ntchito ma VOCs mozama njira zamankhwala.

Njira yonse yochepetsera kupanikizika kwapang'onopang'ono (kutsika kwa mpweya wa oxygen)

Mpweya wosonkhanitsidwa wokhala ndi mpweya wabwino, mpweya wochepa wa okosijeni ndi mtengo wowonjezera, monga gawo la ng'oma yozizira, gawo la benzene eluting ndi gawo la depot la mafuta, limagwiritsidwa ntchito ndi nsanja yotsuka mafuta m'dera lililonse, kenako kusindikizidwa ndi nayitrogeni ndikubwerera ku dongosolo la gasi pansi pa zovuta zonse zoipa. Izi zimafuna kusindikiza kwabwino kwa thanki, kuti mpweya usakhale wovuta kulowa m'dera lopanikizika, ukhoza kulamulira mpweya wabwino wa mpweya.

Mfundo yogwirira ntchito: Choyamba, chipangizo chotseka ndi chotseka cha nayitrogeni chimayikidwa pa thanki yotsekedwa. Pamene thanki ili mkati ndi kunja kwa zinthu, valavu yosindikizira ya nayitrogeni imagwiritsidwa ntchito popereka nayitrogeni ndi kutulutsa nayitrogeni, ndipo gawo lina la mpweya wamchira limatulutsidwa ndi mpweya wa nayitrogeni. Lumikizani valavu yotsekedwa ya thanki ku makina oletsa kuthamanga, ikani chipangizo cha micro negative pressure control air oxygen kutsogolo kwa fani, ikani kupanikizika kwina, ingoyamwani mpweya wotuluka ndi akasinja mu dongosolo lopanikizika loipa, koma osati mpweya wochuluka mu dongosolo lopanikizika loipa pamene mphamvu ya fan imasintha, motero kumayambitsa ngozi.

Ukadaulo wosindikizira wa nayitrojeni umagwiritsidwa ntchito kwambiri posindikiza akasinja pamalo osungiramo madzi. Nayitrojeni amagwiritsidwa ntchito kuwonjezera malo a gasi mu thanki pamene madzi a mu thanki atsika kapena kutentha kwachepa. Podzaza thanki ndi nayitrogeni pamwamba pa mulingo wamadzimadzi, sing'anga yamadzimadzi imalephereka kuti isapitirire ndipo kuthawa kwapakati kumaletsedwa. Pamene mulingo wa chakudya cha tanki ukukwera kapena kutentha kukwera, mphamvu ya gasi mu thanki imakwera, valavu yotulutsa nayitrojeni imatseguka ndipo nayitrogeni imatuluka, kuti musunge mphamvu yamagetsi mu thanki. Thanki yosungirayo ikatsekedwa ndi nayitrogeni, imatha kuchepetsa utsi wa tanki. Malo a gasi mu thanki makamaka osakaniza mpweya woyaka ndi nayitrogeni, zomwe sizipanga kusakaniza kwa gasi wophulika. Ikhoza kupititsa patsogolo chitetezo chamakampani, kuchepetsa zofalitsa zapoizoni komanso zovulaza pamalo ogwirira ntchito, ndikuteteza bwino chilengedwe komanso kukhala ndi thanzi labwino la ogwira ntchito. Panthawi imodzimodziyo, kuchuluka kwa mpweya wotulutsa mpweya womwe umalowetsedwa mu gasi ndi mankhwala osindikizira a nayitrogeni ndi ochepa kwambiri (kuchuluka kwake kumakhala kosakwana 1000m3), ndipo sikungawononge payipi ya gasi.

Njira kuyenda

(1) Khazikitsani kuyamwa kwa payipi kutsogolo kwa chipangizo chowongolera mpweya wa oxygen ngati -100-200Pa, ndi kuyamwa kwa doko lotulutsa thanki ngati 0~-50Pa. Malingana ndi kutalika kwa payipi yochokera ku thanki kupita ku chipangizo chowongolera mpweya woipa wa mpweya kutsogolo kwa chowuzira, ndi kutalika kwa mapaipi osiyanasiyana ndi kukana kosiyana, sinthani kuyamwa kwa doko lotulutsa thanki monga mtengo wokhazikitsidwa ndi digiri yotsegulira ya valve pa thanki; (2) Chipangizo chowongolera mpweya wa oxygen cholumikizidwa ndi chitoliro cha blower reflux kapena chitoliro chakutsogolo, ndipo kuyamwa kwa chipangizo chowongolera mpweya wa oxygen kumasinthidwa pa -1000 ~ -5000Pa kudzera mu valavu yowongolera; (3) The wapadera mkati dongosolo yaying'ono zoipa kuthamanga mpweya kulamulira chipangizo wapangidwa ndi suction chitoliro, kuthamanga kuchepetsa madzi chisindikizo chipinda, mpweya madzi chisindikizo, zingalowe chipinda, baffle, valavu, reflux chitoliro, vacuum n'zotsimikizira, chitoliro kusefukira, chitoliro cha madzi, etc. Pansi pa zochita za kukakamiza zoipa, mpweya mu cholowera chitoliro chitoliro akuswa kupyola ndi madzi gascuum kupyola mu gawo la gasi lamadzi, ndi zina zotero. chitoliro, ndi kutalika kwa chisindikizo cha madzi kumasintha ndi kusintha kwa kuyamwa. Mpweya wotayira wopezekanso ukhoza kungodutsa chisindikizo chamadzi kuti agwiritse ntchito vacuum system, ndikusunga kuyamwa kwapaipi yoyipa ya gasi wotuluka nthawi zonse. Mpweya wamadzi wotengedwa ndi gasi umafupikitsidwa pa baffle kuti ulowe mu chitoliro cha reflux ndikubwerera ku dongosolo losindikizira lamadzi. Nthunzi ina yamadzi imabweretsedwa mu gasi ndi mpweya, choncho m'pofunika kugwiritsa ntchito chitoliro chowonjezera madzi kuti mutsimikizire kutalika kwa chisindikizo cha madzi. Njira yonseyi ilibe utsi, palibe kutayikira, yotetezeka komanso yodalirika, ndipo imazindikira kuti palibe kutulutsa mpweya wamafuta. Kukoka kwa thanki iliyonse kumayikidwa -100 ~ 0Pa, ndipo kuyamwa kwa thanki iliyonse kumayikidwa molingana ndi kutalika, caliber ndi kukana kwa payipi. Tanki imayikidwa ndi valve yotsegula ndi yotsekedwa ya nayitrogeni ndi valavu yotulutsa nayitrogeni, ndipo liwiro la fan limasinthidwa ndi wowongolera pafupipafupi. Kutsekemera kumasinthidwa ndi valavu yoyendetsa pamfundo iliyonse kuti zitsimikizire kuti mpweya sudzatha kulowa mumlengalenga, ndipo panthawi imodzimodziyo, ikhoza kuonetsetsa kuti kuyamwa kokwanira kumasungidwa. Ndondomekoyi imasankha zipangizo zomwe zimakhala ndi makina apamwamba kwambiri, ndipo chizindikirocho chimagwirizanitsidwa ndi kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kake. Pofuna kupewa kutsekeka kwa mapaipi, payipi yotsuka nthunzi imayikidwa papaipi yotolera gasi, ndipo kuyeretsa nthunzi kumachitika pafupipafupi. S155gg

Ubwino wa njira: The VOCs negative pressure balance recovery process yopangidwa ndi Xinjieyuan Technology ilibe malo, ndalama zotsika ndi mtengo wogwirira ntchito, chithandizo chokwanira, ziro mpweya, ndi VOC adachira phula, ammonia ndi benzene zitha kusinthidwa kukhala zinthu zina zitatha kusinthidwanso kudzera munjira monga kuchapa kwa benzene nsanja, kuwongolera kuchira komanso kuwongolera kwambiri phindu lachuma la fakitale.

Njira yoyatsira yotulutsa mpweya woipa wobwereranso (magesi otulutsa mpweya wambiri)

Mu ndondomekoyi, ndi VOCs utsi mpweya ndi apamwamba mpweya okhutira ndi m'munsi anawonjezera mtengo mu gawo desulfurization ndi ammonium sulfide gawo umalowetsedwa mu dongosolo zoipa kuthamanga coke uvuni monga kugawa mpweya nawo kuyaka kwa ng'anjo coke ndi zigawo VOCs kwathunthu oxidized ndi decomposed.

Mfundo yogwira ntchito: Gasi wosonkhanitsidwa wokhala ndi okosijeni wapamwamba kwambiri komanso mtengo wotsika wowonjezera mu gawo lopangira mankhwala amalowetsedwa mu kuyaka kwa ng'anjo ya coke monga kugawa mpweya pambuyo pa nsanja yochapira asidi, nsanja yochapira ya alkali ndi nsanja yochapira madzi, kuti akwaniritse cholinga cha okosijeni ndi kuwonongeka kwa VOC. Pakali pano, ambiri mabizinesi coking anaika coke uvuni flue mpweya desulfurization ndi denitration chipangizo, mbali iyi ya sulfure dioxide, okusayidi asafe adzachotsedwa mu desulfurization ndi denitration chipangizo, akhoza kwenikweni kukwaniritsa ziro umuna wa VOCs mankhwala. Pofuna kuonetsetsa kuti chitetezo chitetezeke, chowunikira cha gasi choyaka chimayikidwa musanayambe kutentha kwa gasi mu ng'anjo ya coke kuti iyake, yomwe imatha kuyang'anira kusintha kwa zigawo zoyaka ndi zophulika mu mpweya wotuluka mu nthawi yeniyeni ndikutumiza chizindikiro ku dongosolo la DCS. Pamene chigawo chachigawo chikufika pa malire oikidwa, ma alarm a DCS ndipo amatsegula valavu yogawa mpweya; Chigawochi chikafika pamlingo wapamwamba, valavu yodziwikiratu mu uvuni wa coke imadulidwa kuti zitsimikizire chitetezo chopanga.

Ubwino wa ndondomeko

(1) Kuchepetsa ndalama zogulira ntchito yomanga pogwiritsa ntchito uvuni wa coke woyambirira ngati chipangizo choyatsira moto; (2) Otsika mtengo ntchito, VOCs mu mpweya utsi pambuyo kuyaka kutentha mphamvu akhoza zobwezerezedwanso, kuchepetsa kumwa gasi, kuchepetsa denitrification kuthamanga kwa SCR kumbuyo-mapeto; (3) Chitetezo chapamwamba, digiri yapamwamba yamagetsi, imatha kuzindikira mosayang'aniridwa; (4) nitrogen okusayidi ndi sulfure woipa kwaiye pambuyo utsi kuyaka mpweya akhoza mwachindunji kuchotsedwa ndi coke uvuni flue mpweya desulfurization ndi denitration chipangizo, popanda kuipa chikhalidwe kuyaka njira.

Rotary regenerative independent combustion process (RTO)

Njira yoyatsira ndiyo kuyeretsedwa kwaposachedwa kwa organic waste gas (VOCs) mwatsatanetsatane njira, yadziwika bwino ndi mafakitale osiyanasiyana. Regenerative Thermal Oxidizer (RTO), yomwe imadziwikanso kuti regenerative incinerator. Ukadaulo ndi wa mtundu wa njira yoyaka moto, kusungirako kutentha, kuphatikiza matenthedwe oxidation mu imodzi mwaukadaulo woyeretsa ma VOC.

Mfundo yogwirira ntchito: Gwiritsani ntchito mapaipi ndikupangitsa mafani kuti atole mpweya wothamangitsidwa womwe wathawa pafupi, ndipo mpweya wotuluka panjira iliyonse umasankhidwa kuti azitsuka ndikuwongolera. NH3 mu utsi gasi otsukidwa ndi mayamwidwe madzi mu pickling nsanja ndi amachitira ndi H2SO4 mu mayamwidwe madzi, ndi mayamwidwe madzi mu pickling nsanja ndi kutulutsidwa kwa mayi mowa thanki wa ammonium sulfide chigawo. Munsanja yochapira zamchere, njira ya NaOH imagwiritsidwa ntchito kuyamwa H2S, HCN ndi mpweya wina wa acidic mu gasi wopopera, ndipo madzi amayamwa munsanja yochapira ya alkali amatayidwa mu thanki yowunikira. Pambuyo pa gasi wotayika wa gawo lochotsa mchere watsukidwa, tinthu tating'ono ta mchere timatsuka; The utsi mpweya amasonkhanitsidwa mu utsi chitoliro chachikulu cha gasi pambuyo kutsuka, ndiyeno kutumizidwa olekanitsa mpweya-zamadzimadzi ndi kupatsirana zimakupiza kulekana gasi-zamadzimadzi. Pambuyo pakuzindikira kwapang'onopang'ono kwapaintaneti ndi kuwongolera / kuwongolera koyenda, chowotcha chachikulu chomwe chimapangidwira chimatumizidwa ku chowotchera chodziyimira pawokha cha rotary (RTO) kuti chiyeretsedwe ndi gasi, ndipo pamapeto pake amapeza kutulutsa kopanda vuto.

Ubwino wa ndondomeko

(1) Zinyalala dongosolo gasi mankhwala ndi coke ng'anjo kupanga dongosolo sizimakhudza wina ndi mzake, popanda wina ndi mzake ndi otsika mtengo ntchito, palibe kufunika kudya coke uvuni mpweya; (2) VOCs kuyeretsedwa mlingo ≥97% (mpaka 99.5%), pang'ono mphamvu pa mapaipi mphepo kuthamanga (± 25Pa, ntchito khola), mabuku kutentha kuchira ≥95%; (3) Musakhale ndi zotsatira pa thupi coke uvuni, kupewa yaitali zotsatira za kubwerera utsi mpweya pa coke uvuni; (4) Lili ndi mphamvu yoyeretsa mpweya wabwino kwambiri kuposa kuyaka kobwerera kuti ikwaniritse zofunikira zautsi m'tsogolomu; (5) Rotary valve mtundu RTO dongosolo kukhazikitsa 30 chitetezo miyeso, kuchokera muzu kuchotsa zoopsa chitetezo; (6) Mlingo wapamwamba wa automation, dongosolo lonselo limatha kuzindikira magwiridwe antchito, osayang'aniridwa.

Mlandu wa chithandizo cha VOCs mu ntchito yopangira malasha yopanga malasha

The choyambirira njira mankhwala zinyalala mpweya ku desulfurization, ammonium sulphate ndi mchere m'zigawo malo zokambirana mankhwala kupanga ndi kusonkhanitsa uniformly ndiyeno kulowa asidi kutsuka ndi alkali kutsuka nsanja kutsuka, ndiyeno kutumiza ku coke uvuni kwa kusakaniza ndi kuyaka. Poganizira momwe zinthu zikuchulukirachulukira zoteteza chilengedwe, njira yochiritsira yoyambirira yakhala ikulephera kukwaniritsa zofunikira za chithandizo chakuya cha VOC. S19joe

Pambuyo pakuwonetsa ndi kufufuza nthawi, kampani yathu imatengera njira yophatikizira yochapira masitepe angapo + kupatukana kwamadzi amadzimadzi + rotary kutentha kosungirako ukadaulo wodziyimira pawokha (RTO) pamaziko opindulitsa zakale. Mpweya wotuluka wa njira iliyonse umatsukidwa ndikuyikidwa kale ndi gulu. NH3 mu utsi gasi otsukidwa ndi mayamwidwe madzi mu pickling nsanja ndi amachitira ndi H2SO4 mu mayamwidwe madzi. Madzi amayamwa munsanja ya pickling amatayidwa ku thanki yamadzi yamadzi ya gawo la ammonium sulfide. Munsanja yochapira zamchere, njira ya NaOH imagwiritsidwa ntchito kuyamwa H2S, HCN ndi mpweya wina wa acidic mu gasi wopopera, ndipo madzi amayamwa munsanja yochapira ya alkali amatayidwa mu thanki yowunikira. Pambuyo pa gasi wotayika wa gawo lochotsa mchere watsukidwa, tinthu tating'ono ta mchere timatsuka; The utsi mpweya amasonkhanitsidwa mu utsi chitoliro chachikulu cha gasi pambuyo kutsuka, ndiyeno kutumizidwa olekanitsa mpweya-zamadzimadzi ndi kupatsirana zimakupiza kulekana gasi-zamadzimadzi. Pambuyo pakuzindikira kwapang'onopang'ono kwapaintaneti ndikuwongolera / kuwongolera koyenda, chowotcha chachikulu chomwe chimapangidwira chimatumizidwa ku chowotchera chodziyimira pawokha cha rotary (RTO) kuti chithandizire kuyeretsa gasi. VOCs≤20mg/Nm3 (non-methane okwana hydrocarbon) pambuyo kusintha; NOx≤35mg/Nm3; SO2≤15mg/Nm3; Tinthu tating'ono ≤10mg/Nm3; NH3≤5mg/Nm3; H2S≤0.5mg/Nm3; HCN≤0.5mg/Nm3, ikukwaniritsa zofunikira za Volatile Organic Matter Emission Control Standard for Industrial Enterprises, Pollutant Emission Standard for Coking Chemical Industry ndi zowononga zowononga kwambiri, ndipo ili ndi ubwino wochotsa bwino kwambiri, kumanga ndi kutsika mtengo, chitetezo ndi kudalirika.