NgoJulayi 1, 2022, umcimbi wokuqalisa kwesigaba sokuqala samathani angama-300,000i-methyl methacrylate(ngemuva kwalokhu ebizwa ngokuthi i-methyl methacrylate) iphrojekthi ye-MMA ye-Henan Zhongkepu Raw and New Materials Co., Ltd. yayibanjelwe e-Puyang Economic and Technological Development Zone, iphawula ukusetshenziswa kwesethi yokuqala entsha yobuchwepheshe be-ionic liquid catalytic ethylene MMA eyakhiwe ngokuzimela I-CAS ne-Zhongyuan Dahua.Lesi futhi isitshalo sokuqala se-ethylene MMA esashicilelwa eChina.Uma imishini ifakwa ngempumelelo ekukhiqizweni, izofinyelela impumelelo ekukhiqizeni i-ethylene MMA yaseChina, enomthelela obaluleke kakhulu embonini ye-MMA.
Iyunithi yesibili ye-MMA yenqubo ye-ethylene e-China ingase ivezwe e-Shandong.Ekuqaleni kulindeleke ukuthi ifakwe ekukhiqizweni cishe ngo-2024, futhi njengamanje isesigabeni sokuqala sokugunyazwa.Uma iyunithi iyiqiniso, izoba iyunithi yesibili ye-MMA yenqubo ye-ethylene e-China, ebaluleke kakhulu ekuhlukaniseni inqubo yokukhiqiza ye-MMA e-China kanye nokuthuthukiswa kwemboni yamakhemikhali yase-China.
Ngokusho kwedatha efanele, kunezinqubo ezilandelayo zokukhiqiza i-MMA e-China: inqubo ye-C4, inqubo ye-ACH, inqubo ye-ACH ethuthukisiwe, inqubo ye-BASF ethylene kanye nenqubo ye-Lucite ethylene.Emhlabeni jikelele, lezi zinqubo zokukhiqiza zinokufakwa kwezimboni.E-China, umthetho we-C4 kanye nomthetho we-ACH kwenziwe ngezimboni, kanti umthetho we-ethylene awukakathuthukiswa ngokugcwele.
Kungani imboni yamakhemikhali yaseChina inweba isitshalo sayo se-ethylene MMA?Ingabe izindleko zokukhiqiza ze-MMA ezikhiqizwa indlela ye-ethylene ziyaqhudelana?
Okokuqala, isitshalo se-ethylene MMA sidale isikhala e-China futhi sinezinga eliphezulu lobuchwepheshe bokukhiqiza.Ngokusho kocwaningo, kunamasethi amabili kuphela amayunithi e-ethylene MMA emhlabeni, atholakala eYurophu naseNyakatho Melika ngokulandelana.Izimo zobuchwepheshe zamayunithi e-ethylene MMA zilula.Izinga lokusebenzisa i-athomu lingaphezu kuka-64%, futhi isivuno siphezulu kunezinye izinhlobo zenqubo.I-BASF kanye noLucite benze ucwaningo lwezobuchwepheshe kanye nokuthuthukiswa kwemishini ye-MMA yenqubo ye-ethylene kusenesikhathi, futhi bathola ukuthuthukiswa kwezimboni.
Iyunithi ye-MMA yenqubo ye-ethylene ayihlanganyeli ezintweni zokusetshenziswa ezine-asidi, okuholela nasekugqwaleni okuphansi kwemishini, inqubo yokukhiqiza evumelana nemvelo, kanye nesikhathi eside sokusebenza kanye nomjikelezo.Kulokhu, izindleko zokwehla kweyunithi ye-MMA kunqubo ye-ethylene ngesikhathi sokusebenza ziphansi kunezinye izinqubo.
Imishini ye-Ethylene MMA nayo inemibi.Okokuqala, izinsiza ezisekela izitshalo ze-ethylene ziyadingeka, lapho i-ethylene ikhiqizwa kakhulu izitshalo ezihlanganisiwe, ngakho-ke ukusekela ukuthuthukiswa kwamabhizinisi ahlanganisiwe kuyadingeka.Uma i-ethylene ithengwa, umnotho umpofu.Okwesibili, kunamasethi amabili kuphela emishini ye-ethylene MMA emhlabeni.Amaphrojekthi aseShayina asakhiwayo asebenzisa ubuchwepheshe be-Chinese Academy of Sciences, kanti amanye amabhizinisi awakwazi ukuthola ubuchwepheshe kalula nangempumelelo.Okwesithathu, imishini ye-MMA yenqubo ye-ethylene inokugeleza kwenqubo ende, isikali esikhulu sokutshala izimali, inani elikhulu le-chlorine eliqukethe amanzi angcolile lizokwenziwa ohlelweni lokukhiqiza, futhi izindleko zokwelashwa kwemfucuza emithathu ziphezulu.
Okwesibili, ukuncintisana kwezindleko zeyunithi ye-MMA ngokuyinhloko kuvela ku-ethylene esekelayo, kuyilapho i-ethylene yangaphandle ingenayo inzuzo esobala yokuncintisana.Ngokophenyo, iyunithi ye-MMA yendlela ye-ethylene ingamathani angu-0.4294 e-ethylene, amathani angu-0.387 e-methanol, 661.35 Nm ³ igesi yokwenziwa, amathani angu-1.0578 e-chlorine eluhlaza akhiqizwa ngokusabela okuhlangene, futhi awukho umkhiqizo we-methacrylic acid ekukhiqizeni. .
Ngokwemininingwane efanele ekhishwe yi-Shanghai Yunsheng Chemical Technology Co., Ltd., izindleko ze-MMA zendlela ye-ethylene cishe i-12000 yuan/ton uma i-ethylene ingu-8100 yuan/ton, i-methanol ingu-2140 yuan/ton, igesi yokwenziwa ingu-1.95 yuan/ cubic meter, kanye ne-chlorine engahluziwe ingama-yuan angama-600/ton.Uma kuqhathaniswa nesikhathi esifanayo, izindleko zomthetho zendlela ye-C4 kanye nendlela ye-ACH ziphezulu.Ngakho-ke, ngokwezimo zemakethe zamanje, i-ethylene MMA ayinakho ukuncintisana kwezomnotho okusobala.
Kodwa-ke, ukukhiqizwa kwe-MMA ngendlela ye-ethylene kungenzeka kuhambisane nezinsiza ze-ethylene.I-Ethylene ngokuyisisekelo isuka ekuqhekekeni kwe-naphtha, ukuhlanganiswa kwamalahle, njll. Kulesi simo, ukuncintisana kokukhiqizwa kwe-MMA ngendlela ye-ethylene kuzothinteka kakhulu ngezindleko ze-ethylene eluhlaza.Uma i-ethylene impahla eluhlaza ihlinzekwa ngokwayo, kufanele ibalwe ngokusekelwe kwintengo yezindleko ze-ethylene, okuzokwenza ngcono kakhulu ukuncintisana kwezindleko ze-ethylene MMA.
Okwesithathu, i-ethylene MMA idla i-chlorine eningi, futhi intengo nobuhlobo obusekelayo be-chlorine kuzophinde kunqume isihluthulelo sokuncintisana kwezindleko ze-ethylene MMA.Ngokwezinqubo zokukhiqiza ze-BASF ne-Lucite, zombili lezi zinqubo zidinga ukudla inani elikhulu le-chlorine.Uma i-chlorine inobudlelwane bayo obusekelayo, izindleko ze-chlorine akudingeki zicatshangelwe, okuzokwenza ngcono kakhulu ukuncintisana kwezindleko ze-ethylene MMA.
Njengamanje, i-ethylene MMA idonse ukunaka okuthile ikakhulukazi ngenxa yokuncintisana kwezindleko zokukhiqiza kanye nendawo yokusebenza ethambile yeyunithi.Ngaphezu kwalokho, izidingo zokweseka izinto ezingavuthiwe nazo zihambisana nendlela yamanje yokuthuthukiswa kwemboni yamakhemikhali yaseChina.Uma ibhizinisi lisekela i-ethylene, i-chlorine negesi yokuhlanganiswa, khona-ke i-ethylene MMA ingaba imodi yokukhiqiza ye-MMA encintisana kakhulu okwamanje.Njengamanje, imodi yokuthuthukiswa kwemboni yamakhemikhali yaseChina ngokuyinhloko ihlanganisa izinsiza ezisekelayo.Ngaphansi kwalo mkhuba, indlela ye-ethylene ehambisana ne-ethylene MMA ingase ibe yinto okugxilwe kuyo embonini.