I. Kev Taw Qhia Luv Luv Txog Khoom: Los Ntawm Basic Monomer Mus Rau Ubiquitous Material
Styrene, ib yam kua roj tsis muaj xim nrog rau ib qho tsw qab tshwj xeeb ntawm chav tsev kub, yog ib qho khoom siv organic tseem ceeb hauv kev lag luam tshuaj niaj hnub no. Raws li cov alkenyl aromatic hydrocarbon yooj yim tshaj plaws, nws cov qauv tshuaj ua rau nws muaj kev ua haujlwm siab - pawg vinyl hauv nws cov molecule tuaj yeem dhau los ua cov tshuaj polymerization, ib qho yam ntxwv uas tso lub hauv paus rau nws cov nqi lag luam.
Kev siv styrene tseem ceeb yog ua ib lub monomer rau kev tsim cov polystyrene (PS). PS yog ib yam khoom siv pob tshab, ua tau yooj yim, thiab siv nyiaj tsawg, thiab nws siv dav hauv kev ntim khoom noj, khoom siv niaj hnub, cov khoom siv hluav taws xob thiab hluav taws xob, thiab lwm yam. Tsis tas li ntawd, styrene yog ib qho tseem ceeb rau kev tsim ntau yam khoom siv hluavtaws tseem ceeb:
●ABS Resin: Copolymerized los ntawm acrylonitrile, butadiene, thiab styrene, nws nyiam nyob rau hauv tsheb, khoom siv hauv tsev, thiab cov khoom ua si vim nws cov toughness, rigidity, thiab processability zoo heev.
●Styrene-Butadiene Rubber (SBR): Ib qho copolymer ntawm styrene thiab butadiene, nws yog cov roj hmab hluavtaws uas tsim tawm thiab siv dav tshaj plaws, feem ntau yog siv rau hauv kev tsim cov log tsheb, cov khau hauv qab, thiab lwm yam.
●Unsaturated Polyester Resin (UPR): Nrog styrene ua tus neeg sawv cev crosslinking thiab diluent, nws yog cov khoom siv tseem ceeb rau fiberglass-reinforced plastic (FRP), siv rau hauv nkoj, cov khoom siv tsheb, cov tsev txias, thiab lwm yam.
●Styrene-Acrylonitrile Copolymer (SAN), Expanded Polystyrene (EPS), thiab lwm yam.
Txij li cov khoom siv txhua hnub xws li cov thawv ntim khoom noj ceev ceev thiab cov thawv hluav taws xob mus rau cov khoom lag luam ntsig txog kev lag luam hauv tebchaws xws li cov log tsheb thiab cov ntaub ntawv tsim kho, styrene yeej muaj nyob txhua qhov chaw thiab yog ib qho ntawm "lub hauv paus tseem ceeb" ntawm kev lag luam khoom siv niaj hnub no. Thoob ntiaj teb, lub peev xwm tsim khoom thiab kev siv styrene tau ntev los ua cov tshuaj lom neeg loj tshaj plaws, nrog nws cov kev lag luam dynamics ncaj qha qhia txog kev vam meej ntawm kev tsim khoom tom qab.
II. Xov Xwm Tshiab: Kev Sib Koom Tes ntawm Kev Hloov Pauv ntawm Kev Ua Lag Luam thiab Kev Nthuav Dav ntawm Lub Peev Xwm
Tsis ntev los no, kev ua lag luam styrene tseem raug cuam tshuam los ntawm lub ntiaj teb macroeconomic ib puag ncig thiab kev hloov pauv ntawm kev lag luam tus kheej cov khoom siv thiab kev thov, qhia txog kev hloov pauv nyuaj.
Kev Txhawb Nqa Tus Nqi Khoom Siv Raw thiab Kev Ua Si Nqe
Raws li ob qho khoom siv tseem ceeb rau styrene, tus nqi ntawm benzene thiab ethylene cuam tshuam ncaj qha rau tus nqi ntawm styrene. Tsis ntev los no, tus nqi roj av thoob ntiaj teb hloov pauv tau ua rau muaj kev hloov pauv hauv kev lag luam khoom siv raw. Cov txiaj ntsig ntawm kev tsim khoom styrene tau nyob ze rau kab nqi, ua rau muaj kev nyuaj siab rau cov tuam txhab tsim khoom. Cov neeg koom nrog kev ua lag luam saib xyuas txhua qhov kev hloov pauv ntawm roj av thiab cov lus hais txog benzene los ntsuas qhov muaj zog ntawm kev txhawb nqa tus nqi ntawm styrene.
Tsom ntsoov rau Kev Tsim Kho Tshiab Muaj Peev Xwm Ntau
Ua tus tsim khoom thiab siv styrene loj tshaj plaws hauv ntiaj teb, Tuam Tshoj txoj kev nthuav dav peev xwm tau nyiam cov neeg saib xyuas ntau heev. Txij xyoo 2023 txog 2024, ntau lub Hoobkas styrene tshiab loj hauv Tuam Tshoj tau muab tso rau hauv kev ua haujlwm lossis yog 即将投产, xws li lub tuam txhab petrochemical lub Hoobkas tshiab 600,000 tons / xyoo, uas tau ua haujlwm zoo. Qhov no tsis yog tsuas yog ua rau muaj kev lag luam ntau ntxiv xwb tab sis kuj ua rau muaj kev sib tw hauv kev lag luam. Kev tso tawm ntawm lub peev xwm tshiab maj mam hloov kho cov kev lag luam styrene hauv cheeb tsam thiab thoob ntiaj teb.
Kev Sib Txawv ntawm Kev Xav Tau Hauv Qab thiab Kev Hloov Pauv ntawm Cov Khoom Muag
Kev ua tau zoo ntawm kev thov sib txawv ntawm cov lag luam downstream xws li PS, ABS, thiab EPS. Ntawm lawv, kev lag luam EPS muaj kev hloov pauv pom tseeb vim yog kev thov rwb thaiv tsev thiab kev siv ntim khoom raws caij nyoog; kev thov ABS muaj feem cuam tshuam nrog cov ntaub ntawv tsim khoom siv hauv tsev thiab tsheb thiab kev muag khoom. Cov qib khoom muag styrene ntawm cov chaw nres nkoj loj tau dhau los ua qhov cim tseem ceeb rau kev saib xyuas qhov sib npaug ntawm kev muab khoom thiab kev thov, nrog rau kev hloov pauv ntawm cov khoom muag cuam tshuam ncaj qha rau kev xav ntawm kev ua lag luam thiab tus nqi.
III. Cov Qauv Kev Lag Luam: Kev Hloov Pauv Ntsuab thiab Kev Txhim Kho Qib Siab
Saib mus tom ntej, kev lag luam styrene tab tom hloov zuj zus mus rau cov qauv tseem ceeb hauv qab no:
Kev Ua Ntau Yam thiab Kev Ua Kom Ntsuab Ntawm Cov Khoom Siv Raw
Ib txwm muaj, styrene feem ntau yog tsim los ntawm cov txheej txheem ethylbenzene dehydrogenation. Tam sim no, cov thev naus laus zis "ntsuab styrene" raws li biomass lossis tshuaj lom neeg rov ua dua tshiab ntawm cov yas pov tseg yog nyob rau hauv R & D thiab kev ua qauv qhia, lub hom phiaj los txo cov pa roj carbon thiab ua tau raws li cov kev xav tau kev txhim kho thoob ntiaj teb. Tsis tas li ntawd, cov txheej txheem sib koom ua ke PO / SM, uas tsim cov propylene thiab styrene los ntawm txoj kev propane dehydrogenation (PDH), tau txais kev nyiam hauv xyoo tas los no vim nws cov txiaj ntsig zoo hauv kev lag luam.
Kev Tsiv Teb Tsaws Chaw Mus Rau Sab Hnub Tuaj Thiab Kev Sib Tw Ntau Ntxiv
Nrog rau kev tsim cov haujlwm loj hauv kev ua kom huv thiab tshuaj lom neeg hauv East Asia, tshwj xeeb tshaj yog Tuam Tshoj, lub peev xwm styrene thoob ntiaj teb tseem niaj hnub tsom mus rau cov cheeb tsam uas tsom mus rau cov neeg siv khoom. Qhov no hloov kho cov qauv kev muab khoom thiab kev thov hauv cheeb tsam, ua rau kev sib tw ua lag luam ntau ntxiv, thiab tso cov kev xav tau ntau dua rau cov tuam txhab tsim khoom siv tau zoo, kev tswj tus nqi, thiab kev txhim kho cov channel downstream.
Cov Khoom Siv Qis Tshaj Plaws Uas Ua Rau Muaj Kev Xav Tau Zoo Dua
Kev lag luam polymer styrene-based dav dav maj mam mus txog qhov kawg, thaum qhov kev thov rau cov khoom siv ua tau zoo, tshwj xeeb derivatives loj hlob tuaj. Piv txwv li suav nrog ABS ua tau zoo rau cov khoom sib xyaw ua ke ntawm lub tsheb fais fab tshiab, cov ntaub ntawv polystyrene qis-dielectric-loss rau cov khoom siv sib txuas lus 5G, thiab styrene-based copolymers nrog cov khoom thaiv kev txhim kho lossis biodegradability. Qhov no yuav tsum tau ua kom kev lag luam styrene sab saud tsis yog tsuas yog tsom mus rau "ntau" kev muab khoom tab sis kuj koom tes nrog cov lag luam sab saud rau kev tsim kho tshiab thiab txhim kho cov khoom muaj nqis.
Kev Loj Hlob Tseem Ceeb rau Kev Lag Luam Ib Txwm thiab Kev Siv Dua Tshiab
Cov txheej txheem rau kev siv rov qab lub cev thiab kev siv tshuaj lom neeg rov ua dua tshiab (depolymerization los rov tsim cov styrene monomers) ntawm cov khib nyiab yas xws li polystyrene tau loj hlob zuj zus. Kev tsim kom muaj lub kaw lus rov ua dua tshiab zoo rau cov yas styrene tau dhau los ua ib qho kev taw qhia tseem ceeb rau kev lag luam kom ua raws li cov cai ib puag ncig thiab ua tiav lub luag haujlwm hauv zej zog, thiab xav tias yuav tsim lub voj voog kaw ntawm "kev tsim khoom-kev siv-kev rov ua dua tshiab-kev tsim dua tshiab" yav tom ntej.
Hauv kev xaus lus, ua ib yam khoom siv tshuaj lom neeg tseem ceeb thiab tseem ceeb, lub zog ntawm kev ua lag luam styrene muaj feem cuam tshuam nrog kev lag luam thoob ntiaj teb thiab cov voj voog khoom lag luam. Thaum daws cov teeb meem ntawm kev hloov pauv ntawm kev ua lag luam luv luv, tag nrho cov saw hlau styrene tab tom tshawb nrhiav txoj hauv kev ntsuab, tshiab, thiab kev txhim kho siab kom ntseeg tau tias cov khoom siv no txuas ntxiv mus vam meej hauv lub sijhawm tshiab ntawm kev txhim kho ruaj khov thiab txhawb nqa kev nce qib ntawm cov lag luam downstream.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-29-2025