NgoJulayi 1, 2022, umcimbi wokuqalisa wesigaba sokuqala se-300,000 tonmethyl methacrylate. UCase noZhongyuan Dahua. Lesi futhi i-Ethylene MMA yokuqala eshicilelwe eChina. Uma imishini ifakwa ngempumelelo ekukhiqizweni, izofinyelela impumelelo e-Ethylene MMA ye-Ethylene MMA, enomthelela obaluleke kakhulu embonini ye-MMA.
Inqubo yesibili ye-MMA yenqubo ye-Ethylene eChina ingahle ivezwe eShandong. Kusekuqaleni kulindeleke ukuthi ibekwe ekukhiqizweni okungu-2024, futhi njengamanje kusigaba sokuvunyelwa kokuqala. Uma iyunithi liyiqiniso, lizoba yingxenye yesibili ye-MMA yenqubo ye-Ethylene eChina, okubaluleke kakhulu ekuhlukanisweni kwenqubo yokukhiqiza ye-MMA eChina nasekuthuthukisweni komkhakha wamakhemikhali waseChina.
Ngokusho kwemininingwane efanelekile, kunezindlela ezilandelayo zokukhiqiza ze-MMA eChina: Inqubo ye-C4, inqubo yenqubo ye-ach, ethuthukisiwe yenqubo ye-ach, i-ethylene inqubo ye-ethy. Emhlabeni jikelele, lezi zinqubo zokukhiqiza zinokufakwa kwezimboni. EChina, umthetho we-C4 no-Ach Law uthuthuke, kanti umthetho we-ethylene akazange athuthukiswe ngokuphelele.
Kungani imboni yamakhemikhali yaseChina ikhulisa isitshalo sayo se-ethylene MMA? Ingabe izindleko zokukhiqiza ze-MMA ezikhiqizwa yindlela ye-ethylene yokuncintisana?
Okokuqala, isitshalo se-ethylene MMA sidale okungenalutho eChina futhi sinezinga lobuchwepheshe obuphezulu bokukhiqiza. Ngokwenhlolovo, kunamasethi amabili kuphela amayunithi e-ethylene MMA emhlabeni, atholakala eYurophu naseNyakatho Melika ngokulandelana. Izimo zobuchwepheshe zamayunithi e-ethylene mma alula. Izinga lokusebenzisa i-atomic lingaphezu kwama-64%, futhi isivuno siphakeme kunezinye izinhlobo zenqubo. I-BASF neLucite senze ucwaningo lobuchwepheshe kanye nokuthuthukiswa kwemishini ye-MMA yenqubo ye-Ethylene ekuseni kakhulu, futhi yathola ukuthuthuka kwezimboni.
I-MMA Unit of Ethylene Process ayihlanganyeli izinto zokusetshenziswa ezivuthayo ze-acidic, okuholela ekugcekeni okuphansi kwemishini, inqubo yokukhiqiza enobungane emvelweni, kanye nesikhathi esijwayelekile sokusebenza kanye nomjikelezo ophelele wokusebenza. Kulokhu, izindleko zokuncipha kwe-MMA uPhiko kwinqubo ye-Ethylene ngesikhathi sokusebenza ziphansi kunalezo ezinye izinqubo.
Imishini ye-Ethylene MMA nayo inobunzima. Okokuqala, izindawo ezisekelayo zezitshalo ze-ethylene ziyadingeka, lapho i-ethylene ikhiqizwa kakhulu yizitshalo ezihlanganisiwe, ngakho-ke ukuthuthukiswa kwamabhizinisi ahlanganisiwe kuyadingeka. Uma kuthengwa i-ethylene, umnotho umpofu. Okwesibili, kunamasethi amabili kuphela wemishini ye-ethylene mma emhlabeni. Amaphrojekthi e-China ezakhiwa Sebenzisa ubuchwepheshe besi-Chinese Academy of Science, kanti amanye amabhizinisi awakwazi ukuthola kalula ubuchwepheshe. Okwesithathu, imishini ye-MMA yenqubo ye-Ethylene inokugeleza kwenqubo ende, isilinganiselo esikhulu sokutshala imali, inani elikhulu lama-chlorine aqukethe amanzi adonswayo lizokwenziwa ngenqubo yokukhiqiza.
Okwesibili, ukuncintisana kwezindleko zeyunithi le-MMA ikakhulukazi kuvela ngokusekela i-Ethylene, kuyilapho i-ethylene yangaphandle ayinayo inzuzo yokuncintisana esobala. Ngokokuphenywa, i-MMA PHITY yendlela ye-Ethylene ingamathani angama-0.4294 we-methanol, amathani angama-0817.35 .
Ngokusho kwemininingwane efanele ekhishwe yiShanghai Yunsheng Cheach Technology Co, Ltd., izindleko ze-MMA zendlela ye-Ethylene cishe zingama-12000 yuan / ton lapho i-ethylene ingu-8100 yuan / ton, igesi yokwenziwa, igesi yokwenziwa, igesi yokwenziwa yi-1.95 yuan / Imitha ye-cubic, futhi i-chlorine enzima ingu-600 yuan / ton. Uma kuqhathaniswa nesikhathi esifanayo, izindleko zomthetho zendlela ye-C4 nendlela ye-ACH ziphezulu. Ngakho-ke, ngokuya ngezimo zamakethe zamanje, i-ethylene mma ayinakho ukuncintisana okusobala komnotho.
Kodwa-ke, ukukhiqizwa kwe-MMA yindlela ye-Ethylene kungenzeka ukuthi ifane nezinsizakusebenza ze-ethylene. E-Ethylene ngokuyisisekelo kusuka ku-naphtha ukuqhekeka, ukuhlanganiswa kwamalahle, njll. Kulokhu, ukuncintisana kokukhiqizwa kwe-MMA ngendlela ye-ethylene kuzothinteka kakhulu izindleko zezinto zokwakha i-ethylene. Uma impahla evuthayo ye-ethylene ihlinzekwa, kufanele ibalwe ngokususelwa kwintengo yezindleko ze-ethylene, ezothuthukisa kakhulu izindleko zokuncintisana ze-Ethylene MMA.
Okwesithathu, i-Ethylene MMA idla i-chlorine eningi, futhi intengo nobudlelwano obusekelayo be-chlorine buzonquma ukhiye wokuncintisana kwezindleko ze-ethylene mma. Ngokwezinqubo zokukhiqiza ze-BASF neLucite, zombili lezi zinqubo zidinga ukusebenzisa inani elikhulu le-chlorine. Uma i-chlorine inobudlelwano bayo obusekelayo, izindleko ze-chlorine akudingeki zibhekwe, okuzothuthukisa kakhulu izindleko zokuncintisana kwe-ethylene mma.
Njengamanje, i-Ethylene MMA idonsele ukunakwa okuthile ikakhulukazi ngenxa yokuncintisana kwezindleko zokukhiqiza kanye nendawo yokusebenza emnene yeyunithi. Ngaphezu kwalokho, izidingo zokusekela izinto ezingavuthiwe nazo zivumelana nemodi yokuthuthuka yamanje yemboni yamakhemikhali yaseChina. Uma i-Enterprise isekela i-ethylene, chlorine kanye ne-synthesis igesi, khona-ke i-Ethylene MMA ingaba yindlela yokukhiqiza ye-MMA ebiza kakhulu njengamanje. Njengamanje, indlela yokuthuthuka yemboni yamakhemikhali yaseChina iyindawo ebanzi yokusekela. Ngaphansi kwalo mkhuba, indlela ye-ethylene ehambelana ne-ethylene mma ingaba ukugxila embonini.