Nge-1 kaJulayi 2022, umsitho wokuqala wesigaba sokuqala se-300,000 yeetonimethyl metacrylate. Esi sisityalo sokuqala se-zethylene se-zethylene epapashiweyo eTshayina. Ukuba izixhobo zenziwa ngempumelelo kwimveliso, iya kufezekisa i-frieth's Ethylene MA ye-Ethylene MMA, enefuthe elibaluleke kakhulu kwicandelo leMMA.
Iyunithi yesibini ye-MMA yenkqubo ye-Ethylene e-China inokubhengezwa eShandong. Kuqala kulindeleke ukuba babekwe kwimveliso malunga ne-2024, kwaye okwangoku kwinqanaba lokuqala lokuvunywa. Ukuba iyunithi iyinyani, iya kuba yiyunithi yesibini ye-MMA yenkqubo ye-Ethylene eTshayina, ebaluleke kakhulu kulwahluko lenkqubo ye-MMA kunye nophuhliso lweshishini lekhemikhali lase China.
Ngokwedatha efanelekileyo, kukho iinkonzo zokuvelisa ezilandelayo zase-MMA eTshayina: Kumhlaba jikelele, ezi nkqubo zemveliso zinemishini yokufakelwa kweshishini. E China, umthetho we-C4 noMthetho we-ACH sele uvunyiwe, ngelixa umthetho wase-Ithylene awukafakwanga ngokupheleleyo.
Kutheni le nto i-Chical Sporlids esandisa ukwandisa i-Ethylene MMA ye-MMA ye-MMA? Ngaba iindleko zemveliso ze-MMA ziveliswe yi-Ethylene kwindlela yokhuphiswano?
Okokuqala, isityalo se-Ethylene MMA senze into engenanto e-China kwaye sinomgangatho wetekhnoloji yemveliso ephezulu. Ngokutsho kolu phando, zimbini kuphela iiseti zeyunithi ze-Ethylene ze-mma ehlabathini, ezikwiYurophu kunye neNyakatho Melika ngokulandelelana. Iimeko zobugcisa zeeyunithi ze-Ethylene MMA zilula. Inqanaba lokusetyenziswa kweatomic ingaphezulu kwe-64%, kwaye isivuno siphezulu kunezinye iinkqubo zenkqubo. I-BASF noLucite baqukene nophando lobugcisa kunye nophuhliso lwezixhobo ze-MMA zenkqubo ye-Ethylene yaza yafunyanwa kwangoko, yaza yaphunyezwa.
Iyunithi ye-MMA yenkqubo ye-Ethylene ayithathi nxaxheba kwizinto eziluhlaza ze-acidic, ezikhokelela ekubonakalisweni kwezixhobo, ukubekwa kwemveliso enobuhlobo, kunye nexesha elide lokusebenza kunye nomjikelo. Kule meko, indleko zokuhla kwe-MMA yeYunithi ye-MMA kwiNkqubo ye-Ethylene ngexesha lokusebenza iphantsi kunezinye iinkqubo.
Izixhobo ze-Ethylene MMA nazo zinezinto ezingalunganga. Izakhiwo zokuqala, zokuxhasa izityalo ze-Ethlene ziyafuneka, apho i-Ethyylene iveliswa kakhulu zizityalo ezihlangeneyo, ngoko ke ukuphuhliswa kwamashishini ahlangeneyo kuyafuneka. Ukuba i-Ellene ithenge, uqoqosho alunasipholo. Okwesibini, zimbini kuphela iiseti zezixhobo ze-zethone ze-mma emhlabeni. Iiprojekthi zase-China eziphantsi kokwakhiwa zisebenzisa itekhnoloji yeSayensi yeSayensi, kunye namanye amashishini abanakho ngokulula kwaye ngokufanelekileyo ukufumana itekhnoloji. Okwesithathu, izixhobo ze-MMA zenkqubo ye-ithylene zinenkqubo ende, isilinganiselo esikhulu sotyalomali, isixa esikhulu se-chlorine sinemveliso yemveliso, kwaye iindleko zonyango zenkunkuma ziphezulu.
Okwesibini, ukhuphiswano lweendleko zeYunithi ye-MMA ikakhulu luvela kwi-Ethylene exhasayo, ngelixa i-ethylene yangaphandle ayinancedo olucacileyo. Ngokutsho kophando, iYunithi ye-MMA ye-ECLYE yi-0.4294 iitoni ze-ithylene, 0.385 ye-Tethanol, i-66178 irhasi ye-chloline iveliswa yimveliso ye-COHCHINE kwimveliso.
Ngokwedatha efanelekileyo ekhutshwa nguShanghai Yunsheng Chemical Chemidy Compley imalunga ne-12000 yuan / ton, i-cunban / i-cunnic wit, i-cubic thensine i-600 yuan / ton. Xa kuthelekiswa nexesha elifanayo, iindleko zezomthetho zendlela ye-C4 ye-C4 kunye ne-ACH ye-ACH ziphezulu. Ke ngoko, ngokweemeko zangoku zentengiso, i-Ethylene MMA ayinalo ukhuphiswano olucacileyo lwezoqoqosho.
Nangona kunjalo, ukuveliswa kwe-MMA yindlela ye-ithoy kunokwenzeka ukuba ihambelane nezixhobo ze-Ethylene. I-Ethylene ihamba ngokusisiseko ukusuka e-Naphtha Cracking, ilahleko ye-MAPE, njl njl. Ukuba izinto ezibukhali ze-ethylene azibonelelwa, kufuneka zibalwe ngokusekwe kwixabiso leendleko ze-ethylene, eya kuthi iphucule ukhuphiswano lweendleko ze-Ethylene Mma.
Okwesithathu, i-Ethylene Mma isebenzisa i-chlorine eninzi, kwaye ubudlelwane kunye nobudlelwane obuxhasayo be-chlorine buya kuthi zichonge isitshixo sokhuphiswano lweendleko ze-Ethylene Mma. Ngokweenkqubo zemveliso ze-basf ne-lucite, zombini ezi nkqubo kufuneka zisebenzise inani elikhulu le-chlorine. Ukuba i-chlorine inolwalamano lwayo oluxhasayo, iindleko ze-chlorine akufuneki ziqwalaselwe, eziya kuthi ziphucule ukhuphiswano lweendleko ze-Ethylene MMA.
Okwangoku, i-Ethylene MMA itsalele ingqalelo enkulu ngenxa yokhuphiswano lweendleko zemveliso kunye nemeko ethambileyo yecandelo. Ukongeza, iimfuno zokuxhasa izinto ezingafunekiyo nazo zihambelana neNdlela yoPhuculo yangoku yeShinyi yeChinyis China. Ukuba ishishini lixhasa i-ithlone, i-chlorine kunye nerhasi ye-synthesi, emva koko i-ithylene MMA inokuba yeyona ndlela ineendleko ze-MMA. Okwangoku, indlela yophuhliso ye-China yeChicamil Chinyis ikakhulu isebenzisa amaziko axhasayo. Ngaphantsi kwale meko, indlela ye-ethylene iyahambelana ne-Ethylene MMA inokuba yeyona nto igxili kuyo ishishini.