Coking Kev Lag Luam VOCs Kev Kho Kev Kho Kom Zoo
Volatile organic compounds (VOCs) yog ib qho tseem ceeb precursors ntawm O3 tiam, thiab ib co ntawm lawv cov khoom muaj zog carcinogenicity. Nyob rau hauv xyoo tas los no, O3 concentration nyob rau hauv lub ntiaj teb no ambient huab cua tau qhia ib tug qauv ntawm nce xyoo los ntawm lub xyoo, thiab cov teeb meem ntawm O3 muaj kuab paug tau dhau los ua qhov tseem ceeb, uas yog ze ze rau ib tug loj tus naj npawb ntawm VOCs emissions. Hauv ntau qhov chaw muaj kuab paug VOCs, kev tsim coking yog ib qho tseem ceeb ntawm cov pa phem. Nyob rau hauv cov txheej txheem ntawm coking ntau lawm, qhov teeb meem emission ntawm VOCs tso pa roj yog qhov tseem ceeb, nrog ntau qhov chaw emissions, ntau yam kuab paug thiab toxicity siab, unorganized emissions thiab lwm yam yam ntxwv, muaj kuab paug rau lub atmospheric ib puag ncig. Raws li kev kho cov coking VOCs khib nyiab roj, cov tuam txhab lag luam uas muaj feem xyuam tau sim thiab tshawb nrhiav, qhov ntau dua yog "peb theem ntxuav + nqus (tshem tawm) txuas" txheej txheem, peb theem ntxuav + RTO txheej txheem, nitrogen sealing + cov txheej txheem tsis zoo rov qab, cov roj khib nyiab rov qab combustion thiab lwm yam txheej txheem kho. Nrog rau kev tso tawm ntawm "Volatile organic compounds Emission Control Standards for Industrial Enterprises", "Coking Chemical Industry Pollutant Emission Standards" thiab lwm yam kev cai, coking VOCs tswj yog ceev heev, raws li tus yam ntxwv ntawm VOCs tso pa roj nyob rau hauv sib txawv txheej txheem los mus ua kom tiav nyob rau hauv-tob kev kho mob, kom ua tau zoo thiab ruaj khov qauv yog ib qho teeb meem ceev rau cov lag luam.
Kev tshuaj xyuas ntawm qhov tseem ceeb ntawm VOCs hauv kev lag luam coking
VOCs hauv kev lag luam coking feem ntau yog los ntawm cov txheej txheem kev tsim cov tshuaj tua kab mob: cov pa phem tseem ceeb ntawm cov nruas txias yog cov yeeb nkab tawm ntawm cov tar, ammonia thiab lwm cov tso tsheb hlau luam, feem ntau tsim cov benzo [a] pyrene, hydrogen cyanide, phenols, naphthol, non-methane tag nrho cov hydrocarbon, ammonia, hydrogen sulfides, thiab lwm yam. desulfurization regeneration chaw thiab cov kav dej tso tawm ntawm txhua lub tank, uas feem ntau yog ammonia thiab hydrogen sulfide. Cov pa phem tseem ceeb ntawm ammonium sulfide seem yog ammonium sulfide drying chaw, ammonium sulfide daws, ammonia cia tank, thiab lwm yam., feem ntau tsim cov khoom me me, ammonia, thiab lwm yam. Cov pa phem tseem ceeb ntawm benzene ntxuav seem yog crude benzene rectification unit, tso cov yeeb nkab ntawm txhua cov roj tank cais, cov txheej txheem tseem ceeb, thiab lwm yam. benzene thiab benzene series, hydrocarbons, thiab lwm yam. Cov VOCs no kuj muaj cov tshuaj lom thiab tsim kev puas tsuaj, flammable thiab explosive yam ntxwv. Vim muaj cov txheej txheem ntev thiab nyuaj ntawm coking kev lag luam, VOCs Cheebtsam muaj ntau haiv neeg thiab nyuaj rau kev sau thiab tswj. Feem ntau, lub tank cia nrog airtightness zoo thiab cov ntsiab lus tsis tshua muaj oxygen txais cov txheej txheem tsis zoo siab rov qab;
Vim nws cov ntsiab lus oxygen siab, cov roj dispersive tsis tuaj yeem nkag mus rau hauv cov pa roj rov qab, yog li nws feem ntau raug kho los ntawm cov txheej txheem ntawm kev sib sau ua ke thiab centralized rov qab mus rau coke cub incineration lossis lwm yam oxidation incineration. Kev xa mus ntev ntawm VOCs cov pa khib nyiab muaj teeb meem xws li tsis tshua muaj siab thiab naphthol hauv cov pa khib nyiab yog yooj yim crystallize thiab thaiv cov raj xa dej. Nyob rau lub sij hawm no, nws yog tsim nyog los tsim ib tug cais incinerator.
Xinjieyuan Technology VOCs Kev Kho Kho Kev daws teeb meemNyob rau hauv tag nrho cov txheej txheem coking, cov tshuaj tua hluav taws xob rov qab yog qhov kev cob qhia uas tsim cov VOCs feem ntau, tshwj xeeb tshaj yog nyob rau hauv qhov chaw rov qab yog qhov hnyav dua, yog li VOCs kev tswj hwm ntawm coking nroj tsuag feem ntau yog tsom rau hauv thaj chaw rov qab. Muaj ntau yam khoom siv los koom nrog hauv thaj chaw rov qab los, thiab cov pa tso pa tawm ntawm ntau lub tso tsheb hlau luam txuas ncaj qha mus rau qhov chaw, ua rau muaj ntxhiab tsw phem. Ammonia, tar, naphthalene, phenol, cyanide, methane hydrocarbons thiab lwm yam tshuaj yuav khiav mus rau hauv cov huab cua, tshwj xeeb tshaj yog benzene, hydrogen sulfide thiab lwm yam tshuaj, tab sis kuj muaj zog toxicity, muaj kuab paug ntawm ib puag ncig, cuam tshuam rau ib puag ncig thiab kev noj qab haus huv ntawm cov neeg ua haujlwm ib puag ncig. Xinjieyuan VOCs kev kho kev daws teeb meem, raws li cov coking enterprise coking, roj purification thiab tshuaj lom neeg tsim rov qab, cov khoom cia, phenol cyanide dej khib nyiab kho cov txheej txheem sib txawv ntawm VOCs cov yam ntxwv thiab cov chaw tso tawm txawv, VOCs kev kho cov txheej txheem tawm los ntawm cov tshuaj tsim tawm tau muab faib ua tag nrho qhov tsis zoo siab rov qab sib npaug, tso pa roj RTO sib txawv ntawm cov khoom siv hluav taws xob sib txawv, sib txawv concentrations, ntau yam kev thov scenarios ntawm VOCs in-debth kev daws teeb meem.
Tag nrho cov txheej txheem tsis zoo siab rov qab sib npaug (tsawg oxygen tso pa)Cov roj uas tau sau nrog airtightness zoo, cov ntsiab lus tsis tshua muaj oxygen thiab cov nqi ntxiv, xws li ntu txias nruas, benzene eluting seem thiab roj depot seem, yog kho los ntawm cov roj ntxhua khaub ncaws hauv txhua cheeb tsam, thiab tom qab ntawd kaw los ntawm nitrogen thiab rov qab mus rau cov pa roj hauv qab lub siab tsis zoo. Cov txheej txheem no yuav tsum muaj kev sib khi zoo ntawm lub tank, kom cov huab cua tsis yooj yim nkag mus rau thaj tsam tsis zoo, tuaj yeem tswj tau cov ntsiab lus ntawm cov pa oxygen zoo dua.
Lub hauv paus ntsiab lus ua haujlwm: Ua ntej, qhib thiab kaw nitrogen sealing ntaus ntawv yog ntsia rau ntawm lub tank kaw. Thaum lub tank yog nyob rau hauv thiab tawm ntawm cov khoom, lub nitrogen sealing valve yog siv rau cov khoom siv nitrogen thiab nitrogen tawm, thiab ib feem ntawm cov roj av yog tawm nrog nitrogen gas. Txuas lub kaw lub tank tso tawm valve rau qhov tsis zoo siab qhov system, nruab ib txheej micro tsis zoo siab oxygen tswj cov cuab yeej nyob rau hauv pem hauv ntej ntawm tus kiv cua, teem ib lub siab, cia li nqus cov pa tso pa tawm los ntawm cov tso tsheb hlau luam rau hauv qhov tsis zoo siab system, tab sis tsis dhau oxygen mus rau hauv lub siab tsis zoo thaum lub kiv cua hloov pauv, yog li ua rau muaj kev nyab xeeb txaus ntshai.
Nitrogen sealing tshuab feem ntau yog siv rau kev sib khi ntawm cov tso tsheb hlau luam hauv cheeb tsam reservoir. Nitrogen yog siv los ntxiv cov pa roj hauv lub tank thaum cov kua theem hauv lub tank poob los yog qhov kub thiab txias. Los ntawm sau lub tank nrog nitrogen siab tshaj cov kua theem, cov kua nruab nrab yog tiv thaiv los ntawm kev nruam gasification thiab qhov nruab nrab gasification khiav yog inhibited. Thaum lub tank pub qib nce los yog qhov kub nce, cov roj siab hauv lub tank nce, cov pa nitrogen tawm valve qhib thiab cov nitrogen khiav tawm, thiaj li tswj xyuas qhov sib npaug ntawm lub tank. Tom qab lub tank ntim tau ntim nrog nitrogen, nws tuaj yeem txo cov pa tawm ntawm lub tank zoo. Qhov chaw roj hauv lub tank feem ntau yog sib xyaw ntawm cov pa roj thiab nitrogen, uas yuav tsis tsim cov roj sib tov sib xyaw. Nws tuaj yeem txhim kho kev ruaj ntseg ntawm kev lag luam, txo cov tshuaj lom thiab tsim kev puas tsuaj rau hauv qhov chaw ua haujlwm, thiab tiv thaiv ib puag ncig zoo thiab tswj xyuas lub cev thiab lub hlwb ntawm cov neeg ua haujlwm. Nyob rau tib lub sijhawm, tus nqi ntawm cov pa tso pa nkag mus rau hauv cov pa system los ntawm kev kho nitrogen sealing yog tsawg heev (qhov siab tshaj plaws yog tsawg dua 1000m3), thiab nws yuav tsis cuam tshuam rau cov kav dej.
Txheej txheem khiav
(1) Teem lub suction ntawm lub raj xa dej nyob rau hauv pem hauv ntej ntawm lub micro tsis zoo siab oxygen tswj cov cuab yeej raws li -100-200Pa, thiab qhov nqus ntawm lub tank tso chaw nres nkoj li 0 ~ -50Pa. Raws li qhov ntev ntawm cov raj xa dej los ntawm lub tank mus rau micro tsis zoo siab oxygen tswj cov cuab yeej nyob rau hauv pem hauv ntej ntawm lub tshuab blower, nrog rau qhov sib txawv ntawm cov kav dej ntev thiab qhov sib txawv, kho qhov nqus ntawm lub tank tso tawm qhov chaw nres nkoj raws li qhov teeb tsa tus nqi nrog rau qhov qhib ntawm lub valve ntawm lub tank; (2) Lub micro tsis zoo siab oxygen tswj cov cuab yeej txuas nrog lub tshuab nqus dej reflux yeeb nkab lossis kiv cua pem hauv ntej yeeb nkab, thiab qhov nqus ntawm micro tsis zoo siab oxygen tswj cov cuab yeej raug kho ntawm -1000 ~ 5000Pa los ntawm kev tswj lub valve; (3) Cov qauv tshwj xeeb sab hauv ntawm micro tsis zoo siab oxygen tswj cov cuab yeej yog tsim los ntawm cov yeeb nkab nqus, siab txwv dej foob chamber, roj dej foob, lub tshuab nqus tsev nqus tsev vacuum, baffle, tswj valve, reflux yeeb nkab, lub tshuab nqus tsev ntsuas, cov kav dej ntws tawm, cov yeeb nkab dej, thiab lwm yam. foob qhov siab hloov nrog kev hloov ntawm qhov nqus. Cov pa roj rov qab tuaj yeem tsuas yog tawg los ntawm cov dej foob kom ua tiav lub tshuab nqus tsev, thiab ua kom lub nqus pa ntawm cov pa roj yeeb nkab tsis tu ncua. Cov dej vapor nqa tawm los ntawm cov pa roj yog condensed ntawm lub baffle kom nkag mus rau hauv cov yeeb nkab reflux thiab rov qab mus rau cov dej foob. Qee cov dej vapor yog coj los rau hauv cov pa roj los ntawm cov pa roj, yog li nws yog ib qho tsim nyog yuav tsum siv cov kav dej ntxiv kom ntseeg tau tias qhov siab ntawm cov dej foob. Tag nrho cov txheej txheem tsis muaj emissions, tsis muaj to, nyab xeeb thiab txhim khu kev qha, thiab tiag tiag realizes xoom emission kev kho mob ntawm chemical tso pa roj. Qhov nqus ntawm txhua lub tank yog teem rau -100 ~ 0Pa, thiab qhov nqus ntawm txhua lub tank yog teem raws li qhov ntev, caliber thiab tsis kam ntawm cov kav dej. Lub tank tau nruab nrog qhib thiab kaw nitrogen mov valve thiab nitrogen tawm valve, thiab qhov ceev ntawm kiv cua yog hloov los ntawm kev hloov pauv zaus. Lub tshuab nqus tsev yog hloov kho los ntawm kev tswj lub valve ntawm txhua qhov taw tes kom ntseeg tau tias cov pa roj yuav tsis khiav mus rau hauv cov huab cua, thiab tib lub sijhawm, nws tuaj yeem ua kom muaj kev nqus txaus. Cov txheej txheem xaiv cov khoom siv nrog cov qib siab ntawm automation, thiab cov teeb liab txuas nrog lub hauv paus tswj kev tswj ntawm lub hauv paus tswj chav tsev ntawm cov tshuaj, uas yog ua los ntawm cov neeg ua hauj lwm ntawm lub hauv paus tswj chav tsev yam tsis tau ntxiv cov neeg ua hauj lwm ntxiv. Txhawm rau tiv thaiv kev thaiv cov kav dej, cov kav dej ntxuav cov kav dej tau muab tso rau ntawm cov pa tso pa tawm, thiab kev ntxuav chav ua haujlwm tsis tu ncua.
Cov txheej txheem zoo: VOCs tsis zoo siab tshuav nyiaj li cas rov qab txheej txheem tsim los ntawm Xinjieyuan Technology tsis muaj thaj chaw thaj av, kev nqis peev tsawg thiab kev ua haujlwm, kev kho kom zoo, xoom emissions, thiab VOC rov qab tau tar, ammonia thiab benzene tuaj yeem hloov mus rau lwm yam khoom tom qab siv los ntawm cov txheej txheem xws li benzene ntxhua khaub ncaws, txhim kho tus nqi rov qab thiab kev lag luam zoo ntawm lub Hoobkas.
Tshem tawm hom teeb meem tso pa tawm rov qab ua cov txheej txheem (cov pa oxygen siab siab)Hauv cov txheej txheem no, VOCs tso pa roj nrog cov pa oxygen ntau dua thiab qis dua tus nqi ntxiv hauv seem desulfurization thiab ammonium sulfide seem yog nkag rau hauv qhov tsis zoo siab ntawm lub qhov cub coke li cua faib los koom rau hauv kev sib xyaw ntawm coke qhov cub thiab VOCs Cheebtsam yog oxidized thiab decomposed.
Lub hauv paus ntsiab lus ua haujlwm: Cov pa roj uas muaj cov pa oxygen ntau dua thiab qis dua tus nqi ntxiv hauv cov khoom siv tshuaj lom neeg rov qab yog nkag rau hauv coke cub combustion raws li huab cua xa tawm tom qab ntxuav cov kua qaub, alkali ntxhua khaub ncaws ntauwd thiab dej ntxhua khaub ncaws ntauwd, kom ua tiav lub hom phiaj ntawm oxidation thiab decomposition ntawm VOCs. Tam sim no, feem ntau ntawm cov tuam txhab coking tau teeb tsa coke cub flue gas desulfurization thiab denitration device, qhov no ntawm sulfur dioxide, nitrogen oxide yuav raug tshem tawm hauv desulfurization thiab denitration ntaus ntawv, tuaj yeem ua tiav xoom emissions ntawm VOCs kev kho mob. Txhawm rau kom muaj kev nyab xeeb, lub tshuab hluav taws xob hluav taws xob tau teeb tsa ua ntej cov pa tso pa nkag mus rau hauv lub qhov cub coke rau combustion, uas tuaj yeem saib xyuas qhov kev hloov pauv ntawm cov nplaim hluav taws thiab cov khoom tawg hauv cov pa tawm hauv lub sijhawm tiag tiag thiab xa cov teeb liab mus rau DCS tswj qhov system. Thaum cov khoom sib xyaw ua ke nce mus txog qhov txwv tsis pub dhau, DCS lub tswb thiab cia li qhib cov pa xa tawm valve; Thaum cov khoom sib xyaw ua ke nce mus txog qhov teeb tsa sab saud, lub valve tsis siv neeg rau hauv qhov cub coke raug txiav tawm kom ntseeg tau tias muaj kev nyab xeeb ntau lawm.
Cov txheej txheem zoo(1) Txo cov nqi peev kev tsim kho los ntawm kev siv lub qhov cub qub coke ua cov khoom siv hluav taws xob; (2) Cov nqi khiav lag luam qis, VOCs hauv cov pa roj tom qab hluav taws xob hluav taws xob tuaj yeem rov ua dua tshiab, txo cov roj noj, txo cov denitrification siab ntawm qhov kawg SCR; (3) Kev ruaj ntseg siab, qib siab ntawm automation, tuaj yeem paub tsis muaj neeg saib xyuas; (4) Nitrogen oxide thiab sulfur dioxide tsim tom qab tso pa tawm tuaj yeem raug tshem tawm ncaj qha los ntawm coke cub flue gas desulfurization thiab denitration ntaus ntawv, tsis muaj qhov tsis zoo ntawm txoj kev sib xyaw ua ke.
Rotary regenerative ywj siab combustion txheej txheem (RTO)
Txoj kev combustion yog tam sim no purification ntawm cov organic pov tseg roj (VOCs) cov txheej txheem ntau dua, tau lees paub los ntawm ntau yam kev lag luam. Regenerative Thermal Oxidizer (RTO), tseem hu ua regenerative incinerator. Cov thev naus laus zis belongs rau hom kev sib xyaw ua ke, kev khaws cia kub, thermal oxidation kev koom ua ke rau hauv ib qho ntawm VOCs purification technology.
Ua haujlwm ua haujlwm: Siv pipelines thiab indents cua ntsawj qab ua kom cov pa roj tso pa tawm ze, thiab cov pa ntawm txhua tus txheej txheem yog faib rau kev ntxuav thiab pretrice. NH3 nyob rau hauv cov pa tso pa yog ntxuav los ntawm cov kua nqus dej nyob rau hauv lub pickling pej thuam thiab reacts nrog H2SO4 nyob rau hauv cov kua nqus dej, thiab cov kua nqus dej nyob rau hauv lub pickling ntauwd yog tawm mus rau lub tsev cawv tank ntawm ammonium sulfide seem. Nyob rau hauv lub alkali ntxhua khaub ncaws ntauwd, NaOH tov yog siv los nqus H2S, HCN thiab lwm yam acidic gases nyob rau hauv cov pa pa, thiab cov kua nqus dej nyob rau hauv lub alkali ntxuav ntauwd yog tawm mus rau hauv lub mechanized clarification tank. Tom qab cov roj khib nyiab ntawm cov ntsev rho tawm yog ntxuav, cov ntsev ntsev hauv cov pa khib nyiab yog ntxuav; Cov pa tso pa yog sau rau hauv cov pa roj yeeb nkab tom qab ntxuav, thiab tom qab ntawd xa mus rau cov roj-kua cais los ntawm cov kiv cua relay rau cov roj-kua sib cais. Tom qab muaj kev tshawb nrhiav hauv online thiab kev tswj xyuas lub siab / ntws hauv cov txheej txheem, cov kiv cua tseem ceeb raug xa mus rau lub tshuab hluav taws xob hluav taws xob hluav taws xob (RTO) rau kev kho cov pa purification, thiab thaum kawg ua kom tsis muaj paug tawm.
Cov txheej txheem zoo
(1) Kev kho cov roj pov tseg thiab cov txheej txheem coke cub tsis cuam tshuam rau ib leeg, kev ywj pheej ntawm ib leeg thiab cov nqi khiav lag luam qis, tsis tas yuav haus cov roj coke cub; (2) VOCs purification tus nqi ≥97% (txog 99.5%), cuam tshuam me me ntawm cov kav dej cua siab (± 25Pa, kev ua haujlwm ruaj khov), kev ua haujlwm kub zoo tshaj ≥95%; (3) Tsis txhob muaj kev cuam tshuam rau lub qhov cub coke, kom tsis txhob muaj kev cuam tshuam ntev ntawm cov pa roj rov qab rau ntawm qhov cub coke; (4) Nws muaj ntau dua cov pa purification efficiency dua li rov qab combustion kom tau raws li emission ntau dua yav tom ntej; (5) Rotary valve hom RTO system teeb tsa 30 kev ntsuas kev nyab xeeb, los ntawm cov hauv paus hniav kom tshem tawm kev nyab xeeb; (6) Qib siab ntawm automation, tag nrho cov kab ke tuaj yeem paub txog kev ua haujlwm tsis siv neeg, tsis muaj neeg saib xyuas.
VOCs kho cov ntaub ntawv nyob rau hauv thee ntau lawm Rhiav pov tseg gas kho qhov project
Thawj txoj kev kho cov pa khib nyiab los ntawm desulfurization, ammonium sulfate thiab ntsev extraction txoj hauj lwm nyob rau hauv chemical ntau lawm rhiav yog sau nws uniformly thiab ces nkag mus rau hauv lub acid ntxuav thiab alkali ntxhua khaub ncaws ntauwd rau ntxuav, thiab ces xa mus rau coke qhov cub rau tov thiab combustion. Raws li qhov xwm txheej tiv thaiv ib puag ncig hnyav zuj zus, cov txheej txheem kho thawj zaug tau nce zuj zus tuaj yeem ua tsis tau raws li qhov xav tau ntawm VOCs kev kho mob tob.
Tom qab lub sij hawm ua qauv qhia thiab kev tshawb nrhiav, peb lub tuam txhab txais kev sib koom ua ke ntawm kev ntxuav ntau theem + roj-kua sib cais + rotary tshav kub cia ywj siab combustion technology (RTO) raws li tag nrho cov txiaj ntsig qub. Cov pa pa tawm ntawm txhua tus txheej txheem yog ntxuav thiab pretreated los ntawm kev faib tawm. NH3 nyob rau hauv cov pa tso pa yog ntxuav los ntawm cov kua nqus dej nyob rau hauv lub pickling ntauwd thiab reacts nrog H2SO4 nyob rau hauv lub absorbed kua. Cov kua nqus dej hauv cov pej thuam pickling yog tawm mus rau niam cawv tank ntawm ammonium sulfide seem. Nyob rau hauv lub alkali ntxhua khaub ncaws ntauwd, NaOH tov yog siv los nqus H2S, HCN thiab lwm yam acidic gases nyob rau hauv cov pa pa, thiab cov kua nqus dej nyob rau hauv lub alkali ntxuav ntauwd yog tawm mus rau hauv lub mechanized clarification tank. Tom qab cov roj khib nyiab ntawm cov ntsev rho tawm yog ntxuav, cov ntsev ntsev hauv cov pa khib nyiab yog ntxuav; Cov pa tso pa yog sau rau hauv cov pa roj yeeb nkab tom qab ntxuav, thiab tom qab ntawd xa mus rau cov roj-kua cais los ntawm cov kiv cua relay rau cov roj-kua sib cais. Tom qab ib tug series ntawm kev tshawb nrhiav hauv internet concentration thiab siab / ntws tswj nyob rau hauv tus txheej txheem, lub ntsiab induced cua ntsawj ntshab ntxuam yog xa mus rau lub teb kub cia ywj siab burner (RTO) rau tso pa purification kev kho mob. VOCs≤20mg / Nm3 (tsis yog-methane tag nrho hydrocarbon) tom qab kev hloov pauv; NOx≤35mg / Nm3; SO2≤15mg / Nm3; Particle teeb meem ≤10mg/Nm3; NH3≤5mg/Nm3; H2S≤0.5mg / Nm3; HCN≤0.5mg / Nm3, tag nrho ua tau raws li cov kev cai ntawm Volatile Organic Matter Emission Control Standard for Industrial Enterprises, Pollutant Emission Standard for Coking Chemical Industry thiab ultra-ultra-low emission of pollutants, thiab muaj qhov zoo ntawm kev tshem tawm kev ua haujlwm siab, kev tsim kho thiab kev lag luam qis, kev nyab xeeb thiab kev ntseeg tau.
