Uma sibheka izenzakalo ezinkulu ezenzeka emakethe yegesi eliwuketshezi ngo-2023, kunezinto ezimbili ezithinta ngokuqondile izisekelo zokuhlinzekwa nokufunwa: okokuqala, ingozi yokuphepha yendawo yokudlela yase-Ningxia; Ii. Uwoyela we-alkylate ungaphansi kwentela yokusetshenziswa. Le micimbi emibili emikhulu ithinta izimakethe ze-civil kanye ne-olefin carbon 4 ngokulandelana.

Izingozi zokuphepha zithinta ngqo isidingo segesi yomphakathi, ukuhambisana nomthetho emkhakheni, ukungathobeli akuhlangabezani nezidingo zokuvinjelwa, kumayunithi avamile ukuyeka imakethe; Kodwa-ke, kuphinde kube nomthelela omubi ekusetshenzisweni kwegesi esibulala abantu.

Kube nemibiko eminingi kanye nokuhlaziywa kwezinguquko ezimangalisayo emakethe ezibangelwa intela yokusetshenziswa kuwoyela we-alkylate kanye nokwenyuka okubukhali kwezindleko. Sekudlule izinyanga ezinhlanu kwaqala ukusetshenziswa kwenqubomgomo, futhi sizobheka umthelela othile emakethe ye-carbon four ngokusebenzisa idatha.

Ngokushintsha kwesidingo se-C4 ye-olefin kumadivayisi e-alkylation, kungabonakala ukuthi isidingo sizinzile enyangeni yokuqala eyodwa noma ezimbili ngaphambi kokwethulwa kwezinqubomgomo ezifanele. Iholide elincane ngoMeyi laliyinkathi ephakeme kakhulu yesidingo sikawoyela, okwakufanele kube izinga eliphezulu kakhulu lokwakhiwa kwemishini ye-alkylation, kodwa intela yokusetshenziswa yayikhokhiswa maphakathi nasekupheleni nasekupheleni, futhi amanye amabhizinisi anciphisa umthwalo noma amisa umsebenzi. ukugwema izingozi, okuholela ekwehleni kwezinga lokusebenza nesidingo se-alkylation, kanye nezinga lokusebenzisa umthamo we-alkylation lehle cishe ngamaphesenti ayi-10 ngesikhathi esifushane. Ngemva cishe kwesigamu senyanga yesiyaluyalu, imakethe kawoyela we-alkylated ne-olefin C4 iphinde yathola iphuzu elisha lebhalansi: intengo ye-olefin C4 yehliswe kakhulu.

NgoMeyi, intengo yaseChina ye-olefin carbon 4 yehle ngo-11.76%, yaqhubeka yehla ngo-8.84% ngoJuni, futhi yaphinde yakhuphuka ngo-August; Inzuzo ye-alkylation ibiphezulu esigabeni sokuwohloka kwegesi yezinto ezingavuthiwe, kodwa inzuzo yehla kancane kancane ekuqaleni kwentela esikhathini sakamuva, futhi yaguqulwa ngo-Agasti, ngemuva kokulahlekelwa isikhathi eside. Ukuphindiselwa kabusha kwe-carbon 4 ye-raw material kungenxa yesitokwe esisebenzayo samadivayisi e-alkylation amanani aphansi. Lokhu kwehla komfula kuhlanganisa amayunithi e-alkylation kanye namanye. Ithintwa uhlangothi lwenqubomgomo olunomkhawulo, intengo yekhabhoni yesine ye-olefin yehlele endaweni ephansi, hhayi kuphela imali engenayo yedivayisi ye-alkylation, kodwa futhi nenzuzo yedivayisi ye-olefin isomerization, amanye amabhizinisi amisiwe aqalise kabusha umsebenzi noma kwaqala kabusha izinhlelo zokusebenza, futhi uhlangothi lwesidingo luye lwaba ngcono kancane kancane.

Imakethe ye-olefin carbon 4 ayizange ibuyele ekuzoleni ngenxa yebhalansi entsha, futhi ukuhlolwa ngezikhathi ezithile kuzophinde kuthinte umkhuba ngezigaba, futhi ikusasa le-olefin carbon 4 lisazofuna intuthuko entsha kulesiyaluyalu.