Nyob rau hauv xyoo tsis ntev los no, nyob rau hauv lub teb chaws kev txuag hluav taws xob thiab emission txo cov lag luam thiab lwm yam kev lag luam muaj cov pa roj carbon dioxide tau nce sai. Txawm li cas los xij, vim muaj feem cuam tshuam txog cov txheej xwm kev noj qab haus huv, lub sij hawm commovioning lub sij hawm tshiab cov pa roj carbon dioxide tau qeeb. Cov dej hauv qab cov roj carbon dioxide kev ua lag luam cuam tshuam ntau kev lag luam, thiab lawv txoj kev loj hlob sib txawv. Qhov kev thov rau cov pa roj carbon dioxide nyob rau yav tom ntej kuj txawv. Cov ntsiab lus kev loj hlob ntawm cov lag luam hauv cov dej hauv cov dej khov, tshuaj noj cov roj ntsha, thiab roj carbon dioxide yog siv cov tshuaj lom neeg rau cov roj carbon rau cov khoom siv hauv qab. Cov ntaub ntawv thov kev lag luam tseem ceeb suav nrog kev tsim cov chav ntawm cov pa roj carbonate, glacial acetic acid thiab lwm yam khoom. Nws cia siab tias qhov kev thov rau cov pa roj carbon dioxide in kev lag luam ntau yuav nce hauv sync nrog kev lag luam ntau lawm. Kev tshawb fawb txog cov tshuaj uas muaj roj carbon dioxide tau ua rau cov roj carbon, roj carbon dioxide rau cov pa hluav taws xob, thiab lwm yam. Ntxiv rau, daim ntawv thov ntawm cov dej khov qhuav li cov kua dej hauv kev tsim khoom kuj tau ua kev nce qib tseem ceeb.
Tam sim no, cov txheej txheem tseem ceeb rau kev siv roj carbon dioxour, Membrane Kev sib cais, kev kos duab oxidation, tsawg-kub distillation thiab lwm yam txheej txheem. Cov thev naus laus zis txhua qhov sib txawv ntawm cov khoom siv lub cev lossis tshuaj lom neeg ntawm carbon dioxide thiab nws cov koom haum cuam tshuam los cais lossis ntxuav lawv. Txhua txoj kev muaj qhov zoo thiab qhov tsis zoo, thiab cov qauv tsim nyog yuav tsum raug xaiv raws li kev rov qab los.
Cov ntsiab lus:carbon dioxide; Rov qab thev naus laus zis; roj ua kom huv; piam thiab ua kom huv
Txheej Txheem Technology sib piv
Txoj kev haum
Txoj kev nqus tau yog ib txoj kev haum siv dav nyob hauv tsev thiab txawv teb chaws, tsuas yog suav nrog kev nqus lub cev thiab tshuaj kom haum. Hauv kev daws teeb meem, thaum muaj kev kub siab rau hauv kev daws, kev nqus kub siab thiab tsis tshua muaj pa taws kub feem ntau siv, thaum txo cov cua kub siab yog siv thaum ntsuas. Xaiv cov ntaub ntawv muaj kev xaiv zoo rau cov pa roj carbon dioxide, siab steribility, ruaj khov, thiab tsis muaj cov nyhuv corrosive. Cov ntaub ntawv nqus lub cev zoo muaj: polyethylene glycol, acrylate, ethanol, monoethanes Dimethy etheryl ether thiab methanol. Cov tshuaj lom neeg muaj kev tiv thaiv kev nqus tau hais txog cov tshuaj tiv thaiv carbon dioxide nrog qee qhov kev nqus tau yooj yim, thaum lwm cov pa roj yuav tsis hnov mob nrog cov kuab tshuaj. Cov kev sib txuas lus nruab nrab hauv nruab nrab yuav decomposed rau hauv cov pa roj carbon dioxide thiab cov kuab tshuaj nyob hauv lwm lub cuab yeej. Hom no tuaj yeem tshem tawm cov roj carbon dioxide tsis tu ncua, thiab thaum kawg paub txog cov pa roj carbon dioxide los ntawm lwm cov roj sib xyaw. Cov yam ntxwv ntawm cov pa roj carbon dioxide nrog kev xaiv zoo, kev ua tau ruaj khov, tsis muaj kuab lom, tsis muaj nplaim taws, thiab tsis muaj kuab paug tshiab tau kawm. Feem ntau siv yog methyldiethanethanbe teb chaws, monoethanolamine, thiab lwm yam.
Txoj kev nqus tau feem ntau haum rau kho cov roj nrog cov pa roj carbon dioxide concentration ntawm tsawg dua 20%. Qhov zoo ntawm cov qauv no yog kev nqus cov tshuaj nrawm nrawm, thiab cov kuab tshuaj sib cais zoo, thiab cov kev sib cais zoo rau cov tshuaj tiv thaiv feem ntau yuav siv tau thiab rov siv dua. Lub zog tsis zoo yog lub zog ntau yuav tsum tau ua kom sov lub plab, thiab cov kuab tshuaj nws tus kheej yuav muaj kev pheej hmoo ua paug.
Adsorption sib cais qauv
Adsorption sib cais qauv siv cov kev sib cuam tshuam ntawm kev nqus ntawm cov nqus thiab cov pa roj carbon dioxide kom ua tiav cov pa roj carbon dioxide. Cov qauv adsorption tuaj yeem faib ua peb txoj kev raws li kev ua haujlwm kub thiab ua haujlwm siab: thiab hloov siab dua kub thiab hloov siab dua siab. Lub nqus tau siv los nqus cov pa roj carbon dioxide nyob rau hauv cov kev kub siab thiab rov ua kom txias thiab txo cov pa roj cua txias thiab txo cov pa roj cua txias thiab txo cov pa roj cua kom sib cais los ntawm kev hloov ntsuas kub thiab siab siab. Cov ntaub ntawv tso cai ib txwm muaj xws li molecular siieves, alumina thiab ua kom cov roj carbon. Qhov kuj nce siab siv thev naus laus zis yog feem ntau siv rau cov haujlwm uas muaj ib qho kev pheej hmoo me me lossis nyuaj siv thev naus laus zis hauv kev lag luam tam sim no.
Cov adsorption sib cais qauv feem ntau haum rau kho cov roj nrog cov pa roj carbon dioxide concentration ntawm tsawg dua 80%. Qhov zoo dua ntawm txoj kev no yog tias cov txheej txheem yooj yim thiab impurities uas nyuaj rau kev nthuav dav tuaj yeem raug tshem tawm tau zoo los ntawm adsorption. Qhov tsis zoo yog kev nqis peev loj, kev siv hluav taws xob muaj zog, thiab kev pabcuam luv luv ntawm lub neej ntawm adsorbent.
Membrane Sib Cais Qauv
Lub membrane sib cais txoj kev siv cov tshuaj txawv ntawm cov pa roj carbon dioxide thaum kev tsav tsheb ntawm kev sib cais roj permeaingilities thiab diffusion coefficients. Thaum lub sijhawm sib cais, cov roj sib xyaw dhau los ntawm cov khoom siv membrane. Vim nws cov roj ntsha me me thiab polarity, cov pa roj carbon dioxide molecules tau thaiv ntawm daim nyias nyias thiab lwm yam ua tiav kev sib cais zoo thiab rov qab ntawm cov pa roj carbon dioxules. Cov ntaub ntawv cov khoom siv feem ntau yog ua los ntawm polymers, ceramics, cov hlau thiab lwm yam khoom siv, nrog kev sib txawv thiab cov khoom sib txawv. Cov ntaub ntawv feem ntau suav nrog cov cellulose acetate membrane, polyocide membrane, polyiChenylene oxide hloov membrane, thiab lwm yam.
Daim nyias nyias txoj kev sib cais yog qhov tsim nyog rau kev kho cov roj nrog cov pa roj thiab cov pa roj carbon dioxide hauv qab 80%. Tam sim no tseem tsis muaj tus piv txwv loj loj. Nws cov yam ntxwv yog kev taug me me, kev ua haujlwm yooj yim, kev siv hluav taws xob tsawg, thiab kev nqis peev tsawg. Qhov tsis zoo yog tias txoj kev kho no yuav tsum tau kho ua ntej, pom kev ua kom muaj zog thiab lub cev tsis muaj zog, thiab kev tsis sib haum xeeb yuav cuam tshuam rau lub neej ntawm daim nyias nyias.
Catalytic oxidation txoj kev
Lub catalytic oxidation txoj kev tsuas yog hloov hydrocarbon-ntim cov tshuaj hauv cov pa roj carbon dioxide raw roj rau hauv cov roj carbon dioxide thiab dej. Cov qauv no tuaj yeem hloov kho kom zoo rau hauv cov roj nyoos, thiab kev lim tshuaj kom txog 10 txog 12 qib, tab sis cov txheej txheem muaj kev nyuaj, thiab cov nqi siv zog thiab cov nqi yog tus nqi siab.
Cryogenic Distillation Txuj Ci
Lub cryogenic distillation distillation distillation distillation distillation distillation distillation distillation cov kev sib txawv ntawm cov roj uas muaj roj ntawm cov roj nyoos los ntawm cov pej thuam rawillation. Ib qho yog liquefaction sib cais, uas siv cryogenic technology rau liquefy thiab cais cov pa roj carbon dioxide. Lwm tus yog hws sib cais, uas solidifies thiab cais cov pa roj carbon dioxide ntawm qhov ntsuas kub qis dua raws li qhov kev ua kom sov siab. Cryogenic distillation rov qab gases nrog cov pa roj carbon dioxide concentration siab dua 90%. Qhov tsis zoo yog tias kev sib cais ua tsis zoo, thiab qhov kub thiab txias tuaj yeem yooj yim ua rau cov khoom siv thiab cov chaw yuav tsum tau txhaws, yog li nws feem ntau tsis tshua siv.
Catalytic oxidation + cryogenic distillation cov txheej txheem
Qhov txheej txheem ua ke no yog kom nias, dehydogenate thiab qhuav cov roj av roj av, thiab tom qab ntawd los ntawm cov khoom lag luam hauv tebchaws, thiab tau txais cov khoom noj muaj txiaj ntsig zoo-qib kua roj carbon dioxide thiab dej khov rau hauv kev coj dawb huv ntau dua 99.996%.
Txheej Txheem Kev Xaiv
Nyob rau hauv xyoo tsis ntev los no, tus qauv uas yuav tsum tau ua lag luam-qib carbon dioxide tau dhau los ua ib qho txheej txheem ua kom muaj zog rov qab los ntawm ib qho txheej txheem ua kom muaj zog hauv kev lag luam thiab kev ua zaub mov noj tau raug txwv ntau heev. Noj cov pa roj carbon dioxide tong tsim los ntawm 1 lab t / ethylene glycol ib txwm ua ib qho piv txwv, cov txheej txheem thev naus laus zis siv tawm.
Lub sam thiaj tsim los ntawm ethylene glycol chav yog li 30 t / h, nrog kub ntawm 60℃ntawm 0.03 mpa. Cov ntsiab lus ntawm txhua qhov kev tiv thaiv hauv tus Tsov tus Tsov tus tw yog: carbon dioxide ntau dua los yog sib npaug: 100 × 10-6 ~ × 10-6, thiab lw nqi ntawm ethylene oxide. Cov impurities tsis tuaj yeem raug tshem tawm stably thiab ua tau zoo los ntawm kev nqus, adsorption, distillation thiab lwm txoj kev. Tam sim no, txoj kev zoo tshaj plaws rau kev tshem C2 thiab saum toj no (suav nrog oxygen-muaj cov olient organic teeb meem) hauv tsev thiab txawv teb chaws yog catalytic oxidation. Cov txheej txheem sib xyaw ua ke ntawm catalytic oxidation thiab tsawg-kub distillation tuaj yeem siv los ua ntshiab roj carbon dioxide. Kev ua haujlwm txhua xyoo ntawm cov txheej txheem no tuaj yeem ncav cuag 8,400 teev, thiab cov roj ua roj nyoos ua tau muaj peev xwm yog 40% rau 110%. Cov khoom ntsuas khoom tuaj yeem ntsib cov qauv qib khoom noj khoom haus zoo. Kev ua kom huv ntawm cov pa roj carbon dioxide tuaj yeem ncav cuag 99.99%, tsis muaj cov khoom siv khib nyiab lossis cov khoom siv dag zog, thiab tsis muaj dej tso tawm hauv cov kev tsim nyog ntawm lub neej Cov Qauv.
Txheej Txheem Cov yam ntxwv thiab Cov Lus Zoo
Roj Ntshav Ntshav Purification
Lub tshuab ua kom muaj roj hauv cov dej txias, lub tshuab ua ntej, ib lub cev qhuav dej, ib lub tshuab nqus tsev dej sov, ib lub tshuab ua kom prehooler, thiab lub tshuab ziab khaub ncaws.
Cov pa roj carbon dioxide tso pa roj los ntawm ethylene glycol chav tsev muaj qhov kub thiab txias thiab muaj cov dej noo. Txhawm rau txhim kho kev ua tau zoo ntawm lub tshuab pa hluav taws xob, cov pa roj yuav tsum tau txias. Tom qab tau txias thiab sib cais los ntawm cov dej txias dua, cov roj nyoos yog nias los ntawm cov pa roj carbon dioxide gas compressor thiab nkag mus rau cov adsorption tank. Cov roj, dej, collorides thiab lwm yam kev lom neeg uas yuav nqa tau yog lim tawm los tiv thaiv lub dehydrogenation catalyst. Tom qab tau ua kom sov los ntawm lub dehydrogenation Preheatre, nws nkag mus rau lub dehydrogenation purification ntauwd. Nyob rau hauv qhov kev txiav txim ntawm cov catalyst nquag (Precious hlau cov teeb meem) thiab lwm yam roj uas sib xyaw ua ke nrog oxygen kom tsim cov pa roj carbon dioxide thiab H2O. Tom qab lub tshav kub tau rov zoo los ntawm lub dehydrogenation Preheatre, nws mus rau lub tshuab ziab khaub ncaws kom tshem tawm ya raws. Tag nrho cov ntsiab lus hydrocarbon nyob rau hauv kev lim dej thiab qhuav roj yog tsawg dua lossis sib npaug rau 48 × 10-6, Nonthhane Hydrocarbons tsawg dua lossis sib npaug rau 18 × 10-6, thiab noo noo tsawg dua lossis sib npaug rau 18 × 10-6.
Cov tshuaj tiv thaiv tseem ceeb:
C2H4+3O2→ 2Co2+2H2O+Q
CxHy+O2→ XCO2+y /2H2O
CxHyO+O2→ XCO2+y /2H2O
Txhua tus yog catalytically oxidized rau co2thiab h2O.
Lub tshuab ziab khaub ncaws siv ntau yam molecular sieve ssibry, thiab muaj peev xwm xaiv tau roj ua kom huv ntxiv ntawm cov pa roj carbon dioxide ntxiv. Adsorbent kev ua dua tshiab tuaj yeem tau txais ib qho kev sib hloov pauv ntawm cov roj carbon monissation, thiab siv hluav taws xob tsawg dua, kom haum condenseration yog tawm thaum lub sijhawm ua kom tiav.
Piam thiab ua kom huv
Lub liquefaction thiab purification system suav nrog ib qho khoom siv txias uas rov qab, ib lub liquefier, ib tug rebification, thiab subcooler.
Tom qab ziab, cov pa roj carbon dioxide nkag cov cuab yeej txias rov qab thiab sib pauv kub nrog huab cua tawm ntawm sab saum toj ntawm cov pej xeem. Tom qab rov ua kom txias, nws nkag mus rau hauv lub liquefier thiab yog liquefied nyob rau hauv lub tub yees ntawm Freon. Qhov Outlet Carbon Dioxide kua yog tswj hwm ntawm txog -16 degree, thiab tom qab ntawd nkag mus rau lub zog huv rau distillation. Qhov qis dua ntawm cov pej thuam purification yog tswj hwm los ntawm rebocer kom tswj tau cov pej thuam evaporation kub ntawm -30 degree, thiab lub siab yog tswj hwm ntawm 2.2 MPA. Cov pa roj carbon dioxide evaporated nrog cov roj tsis-condensable (O2, N2, thiab lwm yam) yog qhov ua kom zoo dua thiab rov qab los txhim kho cov txiaj ntsig. Txij li qhov ntsuas kub ntawm cov kua hauv qis dua ntawm cov pej thuam lim dej yog qhov kom txo qis qis, subcooler tuaj yeem teeb tsa tom qab lub zog ua kom huv. Lub cua sov sov ntawm cov subcooler yog tswj hwm ntawm -30 degree, yog li ntawd qhov kub ntawm carbon dioxide kua yog txo rau -25℃rau cia nyob rau hauv tsawg-kub kheej kheej kheej. Cov khoom tau muab khaws cia rau hauv cov carbon dioxide spherical tso tsheb hlau luam, ib feem ntawm cov uas thauj los ntawm cov tsheb thauj khoom thiab ib feem ntawm cov uas siv cov khoom siv dej khov qhuav.
Cov txheej txheem tub yees siv cov neeg evaporation ntawm nruab nrab thiab cov roj kub tsis txias thiab liquefly carbon dioxide roj ntawm ntau qhov kev ua haujlwm ntawm cov roj carbon dioxide.
Dry ice can be produced by reducing the pressure of liquid carbon dioxide to normal pressure, vaporizing part of the carbon dioxide into gas, and then cooling the other part of the liquid into snowflake-like solids, and then squeezing it into blocks or granules through a refrigerator. Tom qab ntim, nws muab tso rau hauv lub thawv insulated thiab xa mus rau cov neeg siv khoom los ntawm tsheb. Cov cua tso tawm los ntawm cov dej khov tau ua ke nrog cov roj hluav taws xob ntawm cov dej khov nab kuab los ntawm cov dej khov kho kom qhuav, thiab tom qab ntawd nkag mus rau cov dej khov nab kuab compressor rau compression. Tom qab cov roj compressed yog cua sov sib pauv, nws txuas nrog lub system liquefier inlet rau kev rov ua dua tshiab.
Peb Cov Tshuab Khib Nyiab Kho
Khib Roj:Lub txaj ziab thiab adsorption txaj yog tau hloov pauv tsis tu ncua, thiab tsis-roj av ntawm cov roj av distillation yog siv los ua cov roj regenation gav. Qhov kev tawm tsam tau muab cov roj uas rov qab ua tau raws li cov qauv tshem ncaj qha thiab tuaj yeem raug rho tawm ncaj qha. Rau tus Tsov tus Tsov tus tw uas muaj ib qho me me ntawm ethylene thiab lwm tus Tsov tus Tsov tus Tsov tus Tsov ua tsis taus roj av, nws tuaj yeem koom nrog cov pa roj tsis sib haum, nws tuaj yeem siv cov roj ua kua rau kev kho mob. Feem ntau, lub sijhawm hluav taws kub nyob hauv lub sijhawm yog ntau dua lossis sib npaug ntawm 2 s, thiab kev sib txuas nrog 99.9%, uas ua tau zoo dua li ntawm 99.
Wastewater:Cov dej phwj tawm ntim ntawm cov txheej txheem no yog 6 m3/ h, thiab cov ntawv paug tawm yog me me, uas tuaj yeem siv ncaj qha siv raws li cov dej txias ncig kom txias.
Cov khib nyiab:Cov txheej txheem no yuav tsuas tsim cov khib nyiab thaum lub sijhawm txij nkawm, feem ntau yog adsorbent, molecular sab cib thiab dehydrogenation catalyst; Ua kom cov pa roj carbon ntau yog cov lus pov tseg yog sieve yog sieve, thiab lub dehydrogenation catalyst muaj cov khoom muaj txiaj ntsig, uas yog ib qho dav dav pov tseg. Tom qab cov khoom pov tseg saum toj no yog tsim tawm, nws tuaj yeem xa mus rau ib chav ua haujlwm tsim nyog rau kev pov tseg tom qab muab cov khoom siv khib nyiab ib ntus / cov khoom pov tseg dav dav.
Cov Txheej Txheem Kev Nyab Xeeb
Cov kua cov khoom siv roj carbon dioxide tuaj yeem thauj mus rau cov pa roj carbon dioxide spherical spherical tank los ntawm pipelines. Qhov cuab yeej cuab tam yuav tsum tau nruab nrog kev txiav-tawm valve thiab cov pa roj carbon dioxide spherical spherical canker. Txhawm rau tiv thaiv qhov txaus ntshai ntawm cov pa roj carbon dioxide spherical tank tau teeb tsa cov kua roj carbon dioxide rau hauv spherical tank pipeline cut-tawm valve; Txhawm rau tiv thaiv qhov txaus ntshai ntawm cov pa roj carbon dioxide chieterical spherical tank kaute tau teem caij spherical citlet raj xa hluav taws xob roj av; Cov kua roj carbon dioxide chaw thau khoom cov raj xa dej yog cov pa roj hmab tank thiab cov pa roj teeb kaw tau cov khoom siv hluav taws xob kaw lub chaw thau khoom cov raj xa tawm; Cov kua roj carbon dioxide kom qhuav cov raj dej khov kho hluav taws xob thiab cov pa roj hmab ua kom qhuav, thiab cov pa roj ntsha kaw cov dej khov nab kuab kaw lub tshuab hluav taws xob qhuav Lub twj tso kua mis tso rau hauv cov txheej txheem chaw thau khoom yog nruab nrog kev txwv me me los kaw lub spherical tank tawm pipeline txiav-tawm valve.
Online analloterbon analylur tank, qhov hluav taws xob ntawm lub tshuab ziab khaub ncaws thiab cov pa roj av, cov pa roj carificate tev, qhov hluav taws xob ntawm kev huv tower kettle, the vent main pipe, the outlet of the cryogenic spherical tank filling pipeline, the outlet of the cryogenic spherical tank dry ice removal pipeline, and the outlet of the cryogenic spherical tank vent. Ib qho txuas ntxiv roj hauv online Ntes tau teeb tsa hauv cov ntsiab lus hauv roj av thiab tshuaj xyuas online ntawm lub dehydrizer oxidizer feem. Cov Cheebtsam thiab cov yam ntxwv ntawm cov roj nyoos ntawm txhua theem ua rau kev tshuaj xyuas lub sijhawm tiag tiag, thiab nws cov kev saib xyuas qis dua ntawm cov khoom tawg feem ntau thiab cov roj sib xyaw. Thaum cov roj sib xyaw ua ke lel% hauv cov roj inlet sib xyaw ua ntej oxideration txwv tsis pub ua ntej, yog li ua kom muaj kev nyab xeeb thiab txhim khu kev qha ntawm cov cuab yeej.
Qhov kev kub ntxhov ceev system txiav txim siab cov hluav taws xob siab tiv thaiv los ntawm qhov tsis muaj kev nyab xeeb ntawm txhua qhov tseem ceeb ntawm kev teeb tsa kev nyab xeeb ntawm lub valve kev nyab xeeb. Cov raj mis siab thiab cov kav dej tau nruab nrog cov khoom siv hluav taws xob muaj kev nyab xeeb, tshuaj tiv thaiv hluav taws xob, cov pa roj carbon monoxide, cov pa roj carbon monoxide yuav tsum tau.
Tshiab tshiabFeem ntau cov kev xaiv cov txheej txheem rau kev rov qab thiab ua kom huv ntawm cov roj carbon dioxide hauv lub pail roj tawm hauv kev lag luam. Raws li qhov sib txawv hauv cov roj carbon dioxide purity, cov txheej txheem ua kom haum rau cov roj ntsha ua kom muaj kev nyab xeeb rau cov roj ntsha txawv, yog li cov khoom sib xyaw ua ke, yog li cov khoom siv sib xyaw ua ke, yog li cov khoom sib xyaw ua ke, ruaj khov, tag nrho thiab zoo heev "kev ua haujlwm ntawm cov Chav tsev.
Tag
Nqa a2O Txheej txheem ua piv txwv, los ntawm cov txheej txheem kev soj ntsuam ntawm cov dej phwj tuaj thiab cov qauv kev ua ke nrog cov qauv kev qhia tshwj xeeb ntawm a2O Cov txheej txheem kev ua haujlwm tau txiav txim siab nyob rau hauv lem, thiab kev txheeb xyuas cov khoom siv hluav taws xob, sludge tshem tawm cov xwm txheej kev siv hluav taws xob, kev tawm tsam cov xwm txheej, thiab lwm yam. Ntawm lub hauv paus no, kev ua haujlwm thiab kev saib xyuas kev ua haujlwm ntawm cov txheej txheem kev ua haujlwm, thiab cov khoom lag luam uas tuaj yeem tsim kho kom pom tseeb, thiab cov khoom siv ua haujlwm sai sai, ua haujlwm tau zoo thiab ruaj khov ntawm a2O Txheej txheem.
