[Isikhokelo]: Ekupheleni kukaJuni, ukuvalwa okungalindelekanga kwezixhobo zemarike yepropylene kwenzeke enye emva kwenye, nto leyo eyayiluncedo kwicala lokubonelela, ngelixa umdla weemveliso ezisezantsi wawusanda, kwaye ixabiso lemarike layeka ukuhla, ukusukela nge-14 kaJulayi, intengiselwano ephambili yexabiso lemarike yepropylene yaseShandong yayiyi-6480-6500 yuan/ton, kwaye intengiselwano ephambili yemarike yaseMpuma China yayiyi-6350-6350 yuan/ton.

Kulo mjikelo, imakethi yepropylene yasekhaya iyekile ukuwa kwaye yabuyela kwimeko yesiqhelo, kwaye izinto ezixhasa ukubuyela kwakhona kwimakethi ziphambili kwiziseko zokubonelela kunye nemfuno. Amaxabiso eoli aphesheya kweelwandle anyuke kakhulu, izinto ezilungileyo eziphambili zezi: idatha yokunyuka kwamaxabiso e-United States ilungile, uxinzelelo lwe-Federal Reserve luyaqhubeka nokunyusa amazinga enzala, kwaye ukuncitshiswa kwemveliso okongezelelweyo kweSaudi Arabia kuzise ukuqhubeka kwemo entle, kwimakethi. Kwangaxeshanye, ukupaka okwethutyana kwezixhobo zepropylene zeQingdao Jinneng, Wangtong, kunye neZhenghe kulo mmandla, ngelixa isixhobo sokulungisa ukupaka kwasekuqaleni singakhange siqaliswe kwakhona, kwaye ukubonelela kujongene nemakethi ngenkxaso ethile, kwaye izinga lemveliso yePDH yesizwe liyi-69.79% ukusukela kwiintsuku ezili-14, eliphantsi nge-0.2% kunomjikelo wangaphambili. Ngokuwa kokwakhiwa kwepropylene, uluhlu lwamashishini emveliso yepropylene aluphezulu iyonke, ixabiso lesibonelelo linyuswa kancinci kancinci, umdla wokuthenga ophantsi ungcono, kwaye imeko yorhwebo iyonke ilungile.

Kulo mjikelo, iinkqubo ezintathu zepropylene zixutyiwe, kwaye inzuzo yokunganyibiliki kwepropane kwipropylene icacile ngakumbi. Kwelinye icala, ixabiso le-spot lepropane liyaqhubeka nokuhla kweli nqanaba, kwaye kwelinye icala, ixabiso le-propylene monomer linamandla, nto leyo enika ukonyuka okuthile kwindlela yenzuzo. Inzuzo ye-naphtha kunye ne-methanol kwipropylene iqhubekile nokuhla, kwaye inzuzo yenkqubo ye-methanol kwipropylene yehla kakhulu, nto leyo echaphazeleke kakhulu kukunyuka kwexabiso le-methanol yezinto ezikrwada, nto leyo ethintele inzuzo. Inzuzo yenkqubo ye-naphtha kwipropylene ithambekele ekwehleni ukusuka kwiveki ephelileyo, eyona nto inefuthe lixabiso le-naphtha lincipha liye phezulu, kodwa nakwinzuzo eqhuba ukutsala okubangelwe, kulindeleke ukuba i-propylene inzuzo yexesha elifutshane iguquke, inike ingqalelo esondeleyo kwixabiso lemarike lezinto ezikrwada.

Kwixesha elifutshane, kwicala lokubonelela, ngokuqaliswa kwakhona kwezixhobo zePDH eShandong, umthwalo wemveliso esandul’ ukufakelwa kwinqanaba lokuqala uyanda kancinci kancinci, kwaye kulindeleke ukuba unikezelo lwangoku lwepropylene lunyuke, kodwa indawo yokupaka okwethutyana yezixhobo zomzi-mveliso ngamnye eShandong iya kunika inkxaso ethile kwimarike. Icala lemfuno, kweli nqanaba, imakethi yepolypropylene idla ngokuba ngumkhwa onamandla, inzuzo yepowder ilungile, iifektri ezisezantsi kufuneka zithengwe kuphela, ngelixa kwiveki ezayo PO, umzi-mveliso we-acrylonitrile kulindeleke ukuba uqalise kwakhona, kulindeleke ukuba imakethi yepropylene yexesha elifutshane inokuba nokunyuka okuncinci, kodwa indawo yokunyuka incinci, landela ngokusondeleyo ukuqala kwakhona nokuthunyelwa kwabavelisi bepropylene.

Icala lemfuno, indlela yokuthengisa i-polypropylene kwimarike ikwimeko entle, inkxaso yecala lemfuno inamandla, ixabiso le-propylene elingaphambi kokufakwa liye lehla laya kutsho phantsi, ukusasazeka phakathi kwe-propylene kunye ne-PP kwanda, inzuzo yefektri esezantsi yanda kancinci kancinci, umdla wokuthenga nawo wanda kancinci kancinci, kwakhokelela ekuhanjisweni kakuhle kwamashishini e-propylene, indawo yokugcina impahla yaya kutsho phantsi kancinci kancinci, amaxabiso e-propylene anyuka kancinci kancinci.