Acrylonitrile yog tsim los ntawm kev siv propylene thiab ammonia ua raw cov ntaub ntawv, los ntawm oxidation cov tshuaj tiv thaiv thiab refining txheej txheem. Nws yog cov organic sib xyaw nrog cov tshuaj formula C3H3N, cov kua tsis muaj xim nrog cov ntxhiab tsw tsw, flammable, nws cov vapor thiab cua tuaj yeem tsim cov khoom tawg, thiab nws yooj yim los ua combustion thaum raug qhib nplaim taws thiab kub kub, thiab emits roj lom. , thiab reacts hnyav nrog oxidizers, muaj zog acids, muaj zog bases, amines thiab bromine.

Nws yog siv los ua raw khoom rau acrylic thiab ABS / SAN resin, thiab kuj yog siv dav hauv kev tsim cov acrylamide, muab tshuaj txhuam thiab adiponitrile, hluavtaws roj hmab, Latex, thiab lwm yam.

Kev lag luam Acrylonitrile

Acrylonitrile yog ib qho tseem ceeb raw khoom rau peb cov khoom siv hluavtaws loj (yas, hluavtaws roj hmab thiab hluavtaws fibers), thiab cov khoom siv qis qis ntawm acrylonitrile hauv Suav teb yog concentrated hauv ABS, acrylic thiab acrylamide, uas suav txog ntau dua 80% ntawm tag nrho cov khoom siv. acrylonitrile tshuaj. Nyob rau hauv xyoo tas los no, Tuam Tshoj tau dhau los ua ib lub teb chaws loj tshaj plaws nyob rau hauv lub ntiaj teb no acrylonitrile kev ua lag luam nrog kev txhim kho cov khoom siv hauv tsev thiab kev lag luam tsheb. Cov khoom siv hauv qab no tau siv dav hauv ntau yam kev lag luam hauv lub tebchaws, xws li cov khoom siv hauv tsev, khaub ncaws, tsheb, thiab tshuaj.

Acrylonitrile yog tsim los ntawm propylene thiab ammonia los ntawm oxidation cov tshuaj tiv thaiv thiab refining txheej txheem, thiab yog dav siv nyob rau hauv resin, acrylic industrial ntau lawm, thiab carbon fiber yog daim ntawv thov cheeb tsam nrog ceev ceev xav tau nyob rau hauv lub neej yav tom ntej.

Cov pa roj carbon fiber ntau, yog ib qho tseem ceeb ntawm kev siv qis qis ntawm acrylonitrile, yog cov khoom siv tshiab tam sim no tau tsom mus rau kev tshawb fawb thiab kev tsim kho thiab tsim khoom hauv Suav teb. Cov pa roj carbon fiber tau dhau los ua ib qho tseem ceeb ntawm cov khoom siv hnyav, thiab maj mam muab cov ntaub ntawv hlau yav dhau los, thiab tau dhau los ua cov ntaub ntawv tseem ceeb hauv kev ua tub rog thiab tub rog.

Raws li Tuam Tshoj txoj kev lag luam txuas ntxiv txhim kho sai, qhov kev thov rau carbon fiber thiab nws cov ntaub ntawv sib xyaw tseem nce ntxiv. Raws li cov ntaub ntawv txheeb cais, qhov kev thov rau carbon fiber hauv Suav teb tau nce mus txog 48,800 tons hauv 2020, nce 29% tshaj 2019.

Nrog kev txhim kho txuas ntxiv ntawm kev tshawb fawb thiab thev naus laus zis, kev ua lag luam acrylonitrile qhia tau hais tias muaj kev loj hlob zoo.
Ua ntej, txoj kev ntawm acrylonitrile ntau lawm siv propane raws li feedstock yog maj mam nce.
Qhov thib ob, kev tshawb fawb ntawm cov catalysts tshiab tseem yog ib lub ntsiab lus tshawb fawb rau cov kws tshawb fawb hauv tsev thiab txawv teb chaws.
Thib peb, cov nplai loj ntawm cov nroj tsuag.
Plaub, kev txuag hluav taws xob thiab emission txo, kev ua kom zoo dua yog qhov tseem ceeb.
Thib tsib, kev kho dej khib nyiab tau dhau los ua cov ntsiab lus tshawb fawb tseem ceeb.

Acrylonitrile Loj Muaj Peev Xwm Ntau Lawm

Tuam Tshoj cov chaw tsim khoom hauv tsev acrylonitrile feem ntau yog tsom rau cov lag luam uas muaj los ntawm Tuam Tshoj Petroleum & Chemical Corporation (Sinopec) thiab Tuam Tshoj National Petroleum Corporation (CNPC). Ntawm lawv, tag nrho cov peev txheej ntawm Sinopec (nrog rau kev sib koom ua lag luam) yog 860,000 tons, suav txog 34.8% ntawm tag nrho cov peev txheej tsim khoom; Lub peev xwm ntau lawm ntawm PetroChina yog 700,000 tons, suav txog 28.3% ntawm tag nrho cov peev txheej tsim khoom; Lub peev xwm ntau lawm ntawm cov lag luam ntiag tug Jiangsu Searborn Petrochemical, Shandong Haijiang Chemical Co. Ltd. nrog acrylonitrile muaj peev xwm ntawm 520,000 tons, 130,000 tons thiab 260,000 tons raws li, suav nrog tag nrho cov peev txheej tsim tawm txog li 36.8%.

Txij li thaum lub thib ob ib nrab ntawm 2021, lub thib ob theem ntawm ZPMC nrog 260,000 tons / xyoo, lub thib ob theem ntawm Kruel nrog 130,000 tons / xyoo, lub thib ob theem ntawm Lihua Yi nrog 260,000 tons / xyoo thiab lub thib peb theem ntawm Srbang nrog 260,000 tons / xyoo ntawm acrylonitrile tau muab tso rau hauv kev ua haujlwm ib zaug, thiab lub peev xwm tshiab tau mus txog 910,000 tons / xyoo, thiab tag nrho cov khoom siv hauv tsev acrylonitrile tau mus txog 3.419 lab tons / xyoo.

Kev nthuav dav ntawm acrylonitrile muaj peev xwm tsis nres ntawm no. Nws tau nkag siab tias xyoo 2022, 260,000 tons / xyoo cog acrylonitrile tshiab yuav muab tso rau hauv East Tuam Tshoj, 130,000 tons / xyoo cog hauv Guangdong thiab 200,000 tons / xyoo cog hauv Hainan. Lub peev xwm tsim khoom hauv tsev tshiab tsis txwv rau Tuam Tshoj Sab Hnub Tuaj, tab sis yuav muab faib rau ntau thaj tsam hauv Suav teb, tshwj xeeb tshaj yog cov nroj tsuag tshiab hauv Hainan yuav raug muab tso rau hauv kev ua haujlwm kom cov khoom nyob ze rau South Tuam Tshoj thiab cov khw muag khoom sab hnub tuaj Asia, thiab nws kuj yog yooj yim heev rau export los ntawm hiav txwv.

Lub peev xwm ntau lawm ua rau muaj kev nce hauv kev tsim khoom. Jinlian cov ntaub ntawv txheeb xyuas qhia tias Tuam Tshoj cov khoom lag luam acrylonitrile txuas ntxiv teeb tsa qhov siab tshiab hauv 2021. Thaum kawg ntawm lub Kaum Ob Hlis 2021, tag nrho cov khoom siv hauv tsev acrylonitrile tau tshaj 2.317 lab tons, nce 19% xyoo-rau-xyoo, thaum lub xyoo noj nyob ib ncig ntawm 2.6 lab tons. , nrog thawj cov cim qhia ntawm overcapacity hauv kev lag luam.

Kev txhim kho yav tom ntej ntawm acrylonitrile

Nyob rau hauv lub xyoo 2021 nyuam qhuav dhau los, acrylonitrile xa tawm ntau tshaj kev xa tawm thawj zaug. Tag nrho cov khoom xa tawm ntawm acrylonitrile xyoo tas los yog 203,800 tons, nqis 33.55% ntawm xyoo dhau los, thaum kev xa tawm mus txog 210,200 tons, nce 188.69% ntawm xyoo dhau los.

Qhov no yog inseparable los ntawm cov concentrated tso tawm tshiab muaj peev xwm nyob rau hauv Tuam Tshoj thiab kev lag luam yog nyob rau hauv ib lub xeev ntawm kev hloov los ntawm nruj tshuav nyiaj li cas mus rau seem. Tsis tas li ntawd, ib tug xov tooj ntawm European thiab American units tau nres nyob rau hauv thawj thiab thib ob peb lub hlis twg, ua rau ib tug cia li poob nyob rau hauv cov khoom, thaum cov neeg Esxias cov chav nyob rau hauv lub npaj tu lub voj voog, thiab Suav cov nqi qis dua cov neeg Esxias, European thiab American cov nqi, uas. pab Tuam Tshoj cov acrylonitrile xa tawm kom nthuav dav, suav nrog Taiwan Xeev Tuam Tshoj, ze rau Kaus Lim Kauslim, Is Nrias teb thiab Qaib Cov Txwv.

Qhov nce ntawm export ntim tau nrog kev nce zuj zus ntawm cov teb chaws xa tawm. Yav dhau los, Tuam Tshoj cov khoom lag luam acrylonitrile xa tawm tsuas yog xa mus rau Kaus Lim Qab Teb thiab Is Nrias teb. 2021, nrog rau kev txo qis ntawm cov khoom xa tuaj txawv teb chaws, acrylonitrile export ntim tau nce ntxiv thiab xa mus rau European lag luam, suav nrog xya lub tebchaws thiab cheeb tsam xws li Qaib Cov Txwv thiab Belgium.

Nws tau kwv yees tias qhov kev loj hlob ntawm acrylonitrile muaj peev xwm ntau lawm hauv Suav teb hauv 5 xyoos tom ntej no ntau dua li qhov kev loj hlob ntawm cov kev xav tau qis qis, kev xa tawm yuav poob ntxiv, thaum kev xa tawm yuav nce ntxiv, thiab kev xa tawm yav tom ntej ntawm acrylonitrile hauv Suav teb xav tau. kom kov qhov siab ntawm 300,000 tons hauv xyoo 2022, yog li txo qis ntawm kev lag luam hauv Suav teb.

chemwin muag khoom zoo, tus nqi qis acrylonitrile feedstock hauv Tshuag thoob ntiaj teb