Uma sibheka izehlakalo ezinkulu ezenzeka emakethe yegesi encibilikisiwe ngo-2023, kunezinto ezimbili ezithinta ngqo izisekelo zokuhlinzekwa kanye nesidingo: okokuqala, ingozi yokuphepha yendawo yokudlela yaseNingxia; ii. Uwoyela we-alkylate ukhokhiswa intela yokusetshenziswa. Lezi zehlakalo ezimbili ezinkulu zithinta izimakethe zomphakathi kanye neze-olefin carbon 4 ngokulandelana.

Izingozi zokuphepha zithinta ngqo isidingo segesi yomphakathi, ukuthobela umthetho kuya ensimini, ukungalandeli imithetho akuhlangabezani nezidingo zokuvinjelwa, kumayunithi avamile ukuze ayeke imakethe; Kodwa-ke, futhi kunomthelela omubi ekusetshenzisweni kwegesi yomphakathi.

Kube nemibiko eminingi kanye nokuhlaziywa kwezinguquko ezinkulu emakethe ezibangelwe intela yokusetshenziswa kukawoyela we-alkylate kanye nokwenyuka okukhulu kwezindleko. Sekudlule izinyanga ezinhlanu kusukela kwaqaliswa le nqubomgomo, futhi sizobheka umthelela othize emakethe ye-carbon four ngedatha.

Ngoshintsho lwesidingo se-C4 ye-olefin kumadivayisi e-alkylation, kungabonakala ukuthi isidingo sizinzile ezinyangeni zokuqala noma ezimbili ngaphambi kokwethulwa kwezinqubomgomo ezifanele. Iholide elincane ngoMeyi kwakuyisizini ephezulu yesidingo sikawoyela, okwakufanele ngabe yizinga eliphakeme kakhulu lokwakhiwa kwamadivayisi e-alkylation, kodwa intela yokusetshenziswa yayikhokhiswa ngasekupheleni kwephakathi nasekupheleni, kanti amanye amabhizinisi anciphisa umthwalo noma amisa umsebenzi ukuze agweme izingozi, okwaholela ekwehleni kwezinga lokusebenza kwe-alkylation kanye nesidingo, kanye nesilinganiso sokusetshenziswa kwamandla e-alkylation sehle cishe ngamaphesenti ayi-10 esikhathini esifushane. Ngemuva kwesiphithiphithi esicishe sibe yingxenye yenyanga, imakethe kawoyela we-alkylated kanye ne-olefin C4 iphinde yathola iphuzu elisha lokulinganisela: intengo ye-olefin C4 yehlisiwe kakhulu.

NgoMeyi, intengo ye-olefin carbon 4 yaseShayina yehle ngo-11.76%, yaqhubeka nokwehla ngo-8.84% ngoJuni, yaphinde yabuya ngo-Agasti; Inzuzo ye-alkylation yayiphezulu esigabeni sokwehla kwegesi yezinto zokusetshenziswa, kodwa inzuzo yehla kancane kancane ngokuqala kwentela esikhathini esizayo, yaphinde yaguqulwa ngo-Agasti, ngemuva kokulahlekelwa isikhathi eside. Ukubuya kwe-carbon 4 yezinto zokusetshenziswa kubangelwa ukuqoqwa okusebenzayo kwamadivayisi e-alkylation anentengo ephansi. Lokhu okulandelayo kufaka phakathi amayunithi e-alkylation kanye nabanye. Kuthintwe uhlangothi lwenqubomgomo olunemingcele, intengo ye-carbon four ye-olefin yehle yaya endaweni ephansi, hhayi nje kuphela imali engenayo yedivayisi ye-alkylation, kodwa futhi nesabelo sedivayisi ye-olefin isomerization, amanye amabhizinisi amisiwe aqale kabusha umsebenzi noma aqale kabusha izinhlelo zomsebenzi, futhi uhlangothi lwesidingo luye lwathuthuka kancane kancane.

Imakethe ye-olefin carbon 4 ayikabuyi ekuthuleni ngenxa yebhalansi entsha, futhi ukuhlolwa ngezikhathi ezithile kuzothinta nokuthambekela ngezigaba, futhi i-olefin carbon 4 yesikhathi esizayo izoqhubeka nokufuna intuthuko entsha kulesi siphithiphithi.