Mu cyumweru cya mbere cy'Ugushyingo, Zhenhai Icyiciro cya II na Tianjin Bohai Chemical Co., Ltd. byakozwe nabi kubera igabanuka ry'igiciro cya styrene, igabanuka ry'umuvuduko w'ibiciro, igabanuka ry'icyorezo cy’ibyorezo i Jinling, Intara ya Shandong, guhagarika Huatai kugirango ibungabunge, no gutangira ibihingwa byo mu bwoko bwa propylene oxyde byagabanutse kugera kuri 70%.Ariko, gutangira gutya ntibyabujije kugabanuka kumanuka wa okiside ya propylene.Iyo igiciro cya oxyde ya propylene cyamanutse kigera kuri 8700 Yuan / toni, igiciro cya chlorine y’amazi y’ibikoresho fatizo cyazamutse, Kubera ingufu z’amashanyarazi, Shandong Sanyue yagabanije imitwaro y’ibice byayo.Kubera imbogamizi yikiguzi cya propylene oxyde nyinshi, itangwa ryikirenga ryakomeje kuba ryiza, kandi imitekerereze yo kugena ibiciro yongeye kuzamuka.Inzira yo hasi ntabwo ishobora guteza akaga ko gutegereza kugabanuka kwa okiside ya propylene.Ubwiyongere bukurikirwa no kugura.Terminal zimwe nazo zirimo gukora amasezerano mugihe runaka.Umwuka w’isoko wateye imbere, kandi igiciro cya oxyde ya propylene cyahagaritse kugabanuka no kongera kwiyongera.
Mu cyumweru cya kabiri, hamwe no kugarura imitwaro ya Sanyue, kurangiza ibikorwa bya Huatai, no kurangiza kugenzura kwa Dongying Guangrao, umutwaro wa Jinling wagarutse buhoro buhoro, maze uruganda rwa oxyde ya propylene yo mu rugo rutangira kuzamuka buhoro buhoro rugera kuri 73%.Terminal yagarutse gutegereza no kureba nyuma ikeneye kuzuzwa mugice cyanyuma cyicyumweru cya mbere.Kubera ko nta cyizere cyo gukomeza kuzuzwa muri iki cyumweru, isoko ryabuze gato gushyigikira ingingo nziza, ariko ibikoresho fatizo propylene na chlorine y’amazi byombi byariyongereye, kandi oxyde ya propylene yari mu gihirahiro cyo kuzamuka no kugwa, Hamwe no kuzamuka kwimbuto ibikoresho, ikiguzi cya chlorohydrin cyahatiwe kuzamuka ku 100, kandi isoko ryagumye kuba ryiza.Icyumweru kirangiye, amakuru avuga ko ibihingwa binini bya Shandong byasohokaga oxyde ya propylene yinjiye mu isoko, kandi imitekerereze y’isoko yarazamutse.Shandong Shida Shenghua uruganda rwa propylene oxyde yaravuguruwe, kandi epfo yari hafi yohereza hanze.Shandong Bluestar East yatangiye, kandi igura bisanzwe.Uruganda rwa propylene rwakomeje umunsi mukuru wo gutanga neza.Ku cyumweru cya kabiri, Shandong yagereranyaga ibarura rito ry’uruganda, kandi isoko ryazamutseho gato bitewe no kwanga kugurisha.
Mu cyumweru cya gatatu, isoko ryatangiye hejuru gato mu majyaruguru.Kuri ubu, hari ubutumwa bwinshi bwubusa muriisoko ya propylene.Ibyiza ni: Uruganda rwa Shandong Huan C, bitewe n’icyorezo cy’icyorezo, rwagabanije imitwaro y’ibice byayo;Sinochem Quanzhou ifite gahunda yo kugabanya imizigo, kandi gutanga isoko ku isoko ni bike;Biteganijwe ko Shandong Dachang azakomeza gukuramo okiside ya propylene;Kugabanya umusaruro w’inganda zo mu nyanja z’Ubushinwa.Inyinshi mu ngingo mbi ni ibice bishya: Igice cya propylene ya Qixiang Tengda giteganijwe gutanga ibikoresho, kandi inzira yihariye iracyakeneye kwitabwaho;Hariho gahunda yo kugaburira buri kwezi kubikoresho bya Taixing Yida;Kugeza ubu, ibiryo byamazi ya chlorine na propylene biri mubikorwa bidakomeye kandi biragoye kubishyigikira mugihe gito;Ingaruka ziterwa nigihe cyicyorezo nicyorezo cyinganda, ibikorwa bya terminal buri gihe ni bike.Mu gihe gito, biteganijwe ko isoko ya propylene oxyde izakora cyane gato ku nkunga itangwa neza.Mu bihe biri imbere, niba ikiguzi gikomeje kugorana gushyigikirwa, okiside ya propylene iracyafite ibyiringiro byo kugabanuka.Gushyigikirwa nigiciro cyibikorwa bishya, umwanya wo kugabanuka ni muto.Mugihe kizaza, okiside ya propylene iteganijwe gukomeza guhindagurika, hamwe n'umwanya muto hejuru no hepfo.