Ukuthatha isitokhwe seziganeko ezinkulu ezenzeka kwimarike yegesi engamanzi ngo-2023, kukho izinto ezimbini ezichaphazela ngokuthe ngqo iziseko zobonelelo kunye nemfuno: okokuqala, ingozi yokhuseleko kwindawo yokutyela yaseNingxia; Ii. Ioli ye-Alkylate ixhomekeke kwirhafu yokusetyenziswa. Ezi ziganeko zibini zichaphazela i-civil kunye ne-olefin carbon 4 imakethi ngokulandelelanayo.

Iingozi zoKhuseleko zichaphazela ngokuthe ngqo imfuno yegesi yoluntu, ukuthotyelwa kwezomthetho kwintsimi, ukungathobeli akuhambelani neemfuno zokuvalwa, kwiiyunithi eziqhelekileyo ukuyeka imarike; Nangona kunjalo, ikwanefuthe elibi ekusetyenzisweni kwerhasi yendawo yokuhlala.

Kukho iingxelo ezininzi kunye nohlalutyo lweenguqu eziphawulekayo kwiimarike ezibangelwa irhafu yokusetyenziswa kwioli ye-alkylate kunye nokunyuka okubukhali kweendleko. Iinyanga ezintlanu zidlulile ukususela ekuphunyezweni komgaqo-nkqubo, kwaye siya kujonga impembelelo ethile kwi-carbon four market ngokusebenzisa idatha.

Ngokutshintsha kwimfuno ye-C4 ye-olefin kwizixhobo ze-alkylation, kunokubonwa ukuba imfuno izinzile kwinyanga enye okanye ezimbini ngaphambi kokuqaliswa kwemigaqo-nkqubo efanelekileyo. Iholide encinci ngoMeyi yayilixesha eliphakamileyo lemfuno yeoli, ekufanele ukuba ibe yinqanaba eliphezulu lokwakhiwa kwezixhobo ze-alkylation, kodwa irhafu yokusetyenziswa yayihlawuliswa ekupheleni kwexesha kunye nasekupheleni, kwaye amanye amashishini anciphisa umthwalo okanye ayeke umsebenzi. ukuphepha imingcipheko, ekhokelela ekunciphiseni kwesantya sokusebenza kwe-alkylation kunye nemfuno, kunye nesantya sokusetyenziswa komthamo we-alkylation wehla phantse ipesenti ze-10 ngexesha elifutshane. Emva kwesiqingatha senyanga yesiphithiphithi, ioli ye-alkylated kunye ne-olefin ye-C4 yemarike yaphinda yafumana indawo entsha yokulinganisa: ixabiso le-olefin C4 liye lancitshiswa kakhulu.

NgoMeyi, ixabiso le-olefin carbon 4 yaseChina lawa nge-11.76%, laqhubeka lihla nge-8.84% ngoJuni, kwaye liphinde lavela ngo-Agasti; Inzuzo ye-Alkylation yayiphezulu kwinqanaba lokuhla kwegesi ekrwada, kodwa inzuzo yehla ngokuthe ngcembe ngokuqala kwerhafu kwixesha elizayo, kwaye iguqulwe ngo-Agasti, emva kokulahleka kwexesha elide. I-rebound ye-carbon 4 eluhlaza ngenxa yokugcinwa okusebenzayo kwezixhobo ze-alkylation zexabiso eliphantsi. Lo mjelo osezantsi ubandakanya iiyunithi zealkylation kunye nezinye. Ichatshazelwa licala lomgaqo-nkqubo othintelayo, ixabiso lekhabhoni yesine ye-olefin liye lawela kwindawo ephantsi, kungekuphela nje ingeniso yesixhobo se-alkylation, kodwa kunye nesahlulo sesixhobo se-olefin isomerization, amanye amashishini amisiweyo aphinde aqala umsebenzi okanye aye aphinda aqala ukusebenza okanye aye. ziphinde zaqalisa izicwangciso zomsebenzi, kwaye icala lemfuno liye laphucuka ngokuthe ngcembe.

Imarike ye-olefin ye-carbon 4 ayizange ibuyele ekuzoleni ngenxa yebhalansi entsha, kwaye ukuhlolwa kwamaxesha ngamaxesha kuya kuchaphazela umkhwa kwizigaba, kwaye i-olefin carbon 4 yexesha elizayo iya kufuna uphuhliso olutsha kwisiphithiphithi.