I-styrene lulwelo olubalulekileyo lwemathiriyeli ekrwada.Yi-monocyclic enuka kamnandi ye-hydrocarbon ene-alkene side chain kunye nenkqubo ye-conjugate eyenziwe ngeringi ye-benzene.Lelona lungu lilula nelona libalulekileyo le-unsaturated aromatics hydrocarbons.I-styrene isetyenziswa ngokubanzi njengento ekrwada yokuveliswa kwee-resin zokwenziwa kunye nerabha.
I-Styrene lulwelo olubalulekileyo lwemathiriyeli ekrwada, eyemonocyclic i-hydrocarbon enevumba elimnandi kunye nekhonkco elisecaleni le-alkene kwaye yenza inkqubo edityanisiweyo ngeringi ye-benzene.Sistyrene esinevumba elimnandi le-hydrocarbon "esiphethe amalahle e-oyile kunye nerabha edibanisayo kunye neplastiki", kwaye sisisiseko esisisiseko semathiriyeli ekrwada kwishishini lepetrochemical.Umsinga othe ngqo we-styrene yi-benzene kunye ne-ethylene, kwaye umlambo osezantsi usasazekile.Iimveliso eziphambili ezibandakanyekayo yi-polystyrene ephuma ugwebu, i-polystyrene, i-ABS resin, irabha yokwenziwa, i-polyester engaxutywanga kunye ne-styrene copolymers, kwaye i-terminal isetyenziswa kakhulu kwiplastiki kunye neemveliso zerabha zokwenziwa.
2010 ihlabathi styrene imveliso umthamo ukwandiswa, ngokukhawuleza xa ukwanda malunga 2.78 yezigidi zeetoni umthamo wemveliso, ukukhula imveliso kufutshane 10%, ikakhulu ihlabathi ingakumbi eTshayina ukuya ezantsi iimveliso styrene (terminal esetyenziswa kwizixhobo zasekhaya, imoto kunye amashishini ezinto zokwakha) ukusetyenziswa, okwathi ngo-2009 kunye no-2010, imfuno yaseChina ye-styrene yayingaphezu kwe-15%.Emva ko-2010, izinga lokukhula komthamo we-styrene wehlabathi jikelele wehla ngokuthe ngcembe, kwaye ekupheleni kuka-2017, umthamo wemveliso ye-styrene yehlabathi ufikelele kwi-33.724 yezigidi zeetoni.
Umthamo wehlabathi wemveliso ye-styrene ugxile kakhulu eMpuma ye-Asia, kuMntla Melika naseNtshona Yurophu, ethatha i-78.9% yomthamo wehlabathi wemveliso ye-styrene.Ukongezelela, ummandla weAsia-Pasifiki uthatha ama-52 ekhulwini omthamo wemveliso yestyrene ehlabathini.
Imfuno esezantsi ye-styrene ithe saa, kwaye imveliso yokugqibela ziimveliso zeplastiki kunye nerabha eyenziweyo.
Ukususela kwimfuno yehlabathi ephantsi kwe-styrene ngo-2016, i-37.8% ye-styrene isetyenziswe kwi-polystyrene, i-22.1% kwi-polystyrene enegwebu, i-15.9% ukuya kwi-resin ye-ABS, i-9.9% kwi-rabha ye-styrene butadiene, i-4.8% kwi-resin engaxutywanga, njl.
Ngokunyuka komthamo omtsha wemveliso yasekhaya, umthamo we-styrene wokungenisa elizweni kunye nokuxhomekeka kwemveliso kwamanye amazwe kwehlile ngokuthe ngcembe kule minyaka idlulileyo.
Ngokwedatha yamasiko, kwi-2018, amazwe amakhulu aseTshayina angenisa i-styrene yi-Saudi Arabia, Japan, South Korea, Singapore, njl. Ngaphambi kwe-2017, imithombo emikhulu yokungeniswa kwe-styrene yayiyiSouth Korea, i-Saudi Arabia kunye ne-United States, kunye noMzantsi Korea. owona mthombo mkhulu wokungenisa elizweni.
Ukusukela nge-23 kaJuni ka-2018, iSebe lezoRhwebo laseTshayina limisele imisebenzi echasene nokulahla inkunkuma ukusuka kwi-3.8% ukuya kwi-55.7% kwi-styrene engeniswe kwiRiphabhlikhi yaseKorea nase-United States kangangesithuba seminyaka emihlanu, okubangele ukuhla okukhulu umyinge wemveliso yaseTshayina evela kwiRiphabhlikhi yaseKorea kwisiqingatha sesibini sowama-2018, kunye neSaudi Arabia kunye neJapan zibe zezona zizwe ziphambili zokungenisa impahla.
Ngokuveliswa kwemveliso yasekhaya yabucala, inani elikhulu lemveliso entsha ye-styrene iya kuqaliswa ukusebenza e-China kwixesha elizayo.
Ngexesha le-13th yeminyaka emihlanu yeSicwangciso, i-China yakhuthaza ngocwangco yasekhaya yokusulungekiswa kwabucala kunye neeprojekthi zokudityaniswa kwepetrochemical.Okwangoku, i-Hengli, i-Sheng kunye nezinye iiprojekthi zenqanaba lezigidi ezilishumi zokusulungekiswa kunye ne-petrochemical integration ziye zavunywa ukuba zingene kwixesha eliphakamileyo lokwakha, kwaye uninzi lwamashishini amakhulu okucoca kunye ne-petrochemical axhasa izixhobo ze-styrene ezisezantsi.
Ixesha lokuposa: Sep-19-2022