I-styrene iwuketshezi olubalulekile lwento eluhlaza.Kuyi-monocyclic enamakha e-hydrocarbon ene-alkene side chain futhi yakhelwe i-conjugate system eneringi ye-benzene.Yilungu elilula nelibaluleke kakhulu lama-hydrocarbon anephunga elimnandi.I-styrene isetshenziswa kabanzi njengento eluhlaza ekukhiqizeni ama-resin okwenziwa kanye nerabha.
I-styrene siyikhemikhali ewuketshezi ebalulekile ewuketshezi, eyingxenye ye-monocyclic enuka kamnandi eneketanga le-alkene eseceleni futhi yakha isistimu ehlanganisiwe eneringi ye-benzene.Kuyi-hydrocarbon styrene enephunga elimnandi “ephethe amalahle kawoyela kanye nerabha exhumayo nepulasitiki”, futhi iyisisekelo esibalulekile sezinto ezingavuthiwe embonini ye-petrochemical.Umfula oqondile we-styrene yi-benzene ne-ethylene, futhi umfula ongezansi uhlakazekile.Imikhiqizo eyinhloko ehilelekile i-polystyrene egwebulile, i-polystyrene, i-ABS resin, irabha yokwenziwa, inhlaka ye-polyester engagcwele kanye nama-styrene copolymers, futhi isiphetho sisetshenziswa kakhulu emikhiqizweni yenjoloba yokwenziwa.
2010 emhlabeni styrene ukukhiqizwa umthamo ukunwetshwa, ngokucijile lapho ukwanda cishe 2.78 million amathani umthamo wokukhiqiza, ukukhula ukukhiqiza kusondele 10%, ikakhulukazi emhlabeni ikakhulukazi e-China emikhiqizweni ezansi nomfula of styrene (itheminali esetshenziswa zikagesi zasendlini, izimoto kanye izimboni zokwakha) ukusetshenziswa, okwathi ngo-2009 no-2010, isidingo saseChina se-styrene sasingaphezu kuka-15%.Ngemuva kuka-2010, izinga lokukhula kwamandla okukhiqiza ama-styrene emhlabeni wonke lehla kancane kancane, futhi ekupheleni kuka-2017, amandla okukhiqiza ama-styrene emhlabeni wonke afinyelele amathani ayizigidi ezingu-33.724.
Amandla okukhiqiza ama-styrene emhlabeni agxile kakhulu e-East Asia, eNyakatho Melika naseNtshonalanga Yurophu, okwenza u-78.9% womthamo wokukhiqiza we-styrene emhlabeni.Ngaphezu kwalokho, isifunda sase-Asia-Pacific senza amaphesenti angu-52 omthamo wokukhiqiza we-styrene emhlabeni.
Isidingo esezansi nomfula se-styrene sihlakazekile uma kuqhathaniswa, futhi imikhiqizo yokugcina iyimikhiqizo yepulasitiki kanye nerabha yokwenziwa.
Kusukela esidingweni somhlaba wonke se-styrene ngo-2016, i-styrene engu-37.8% isetshenziswa ku-polystyrene, u-22.1% ku-polystyrene egwebulile, u-15.9% ku-ABS resin, 9.9% kuya ku-styrene butadiene rubber, 4.8% kuya ku-unsaturated resin, njll.
Ngokukhula komthamo wokukhiqiza wasekhaya omusha, umthamo wokungenisa we-styrene waseShayina nokuncika kwamanye amazwe kwehle kancane kancane eminyakeni yamuva.
Ngokusho kwedatha yamasiko, ngo-2018, amazwe amakhulu e-China angenisa ama-styrene yi-Saudi Arabia, Japan, South Korea, Singapore, njll. Ngaphambi kuka-2017, imithombo emikhulu yokungeniswa kwe-styrene kwakuyi-South Korea, i-Saudi Arabia ne-United States, ne-South Korea. umthombo omkhulu kakhulu wokungenisa.
Kusukela mhla zingama-23 kuNhlangulana wezi-2018, uMnyango Wezohwebo wase-China ubeke imisebenzi yokulwa nokulahlwa kwempahla esukela ku-3.8% ukuya ku-55.7% ku-styrene engeniswe isuka e-Republic of Korea nase-United States isikhathi esiyiminyaka emihlanu, okuholele ekwehleni okukhulu ingxenye yempahla yaseShayina ethengwayo evela eRiphabhulikhi yaseKorea engxenyeni yesibili yonyaka wezi-2018, kanti i-Saudi Arabia ne-Japan ziba amazwe omthombo omkhulu wokungenisa impahla.
Ngokukhiqizwa okujulile kwezindawo zokuhluza ezizimele zasekhaya, inani elikhulu lamandla amasha wokukhiqiza we-styrene lizosetshenziswa eChina ngokuzayo.
Phakathi nesikhathi "soHlelo Lweminyaka Emihlanu" lwe-13, i-China yakhuthaza ngokuhlelekile ukucwenga kwasekhaya kwangasese kanye namaphrojekthi okuhlanganiswa kwe-petrochemical.Njengamanje, i-Hengli, i-Sheng kanye namanye amaphrojekthi wezinga ayizigidi eziyishumi zokucwenga kanye nokuhlanganisa amakhemikhali e-petrochemical avunyelwe ukungena enkathini ephakeme yokwakhiwa, futhi iningi lamabhizinisi amakhulu okucwenga kanye ne-petrochemical asekela imishini ye-styrene engezansi.
Isikhathi sokuthumela: Sep-19-2022