[Buku Lotsogolera]: Kumapeto kwa mwezi wa June, zida za propylene zomwe zinali kutsekedwa mosayembekezereka zinachitika chimodzi ndi chimodzi, zomwe zinali zabwino kwa mbali yoperekera, pomwe chidwi cha zinthu zomwe zili pansi pake chinakwera, ndipo mtengo wamsika unasiya kutsika, kuyambira pa Julayi 14, malonda odziwika bwino a Shandong propylene pamsika anali 6480-6500 yuan/tani, ndipo malonda odziwika bwino a msika wa East China anali 6350-6350 yuan/tani.

Munthawi imeneyi, msika wa propylene wa mdziko muno wasiya kugwa ndipo wayambiranso, ndipo zinthu zomwe zikuthandizira kukwera kwa msika makamaka zili mu mfundo zoyambira za kupereka ndi kufuna. Mitengo yamafuta yapadziko lonse lapansi yakwera, zinthu zazikulu zabwino ndi izi: deta ya kukwera kwa mitengo yamafuta ku United States ndi yabwino, kukakamizidwa kwa chiwongola dzanja cha Federal Reserve kwachepa, ndipo kuchepetsedwa kwa kupanga kwa Saudi Arabia kwapangitsa kuti mlengalenga wabwino upitirire pamsika. Nthawi yomweyo, kuyimitsa kwakanthawi kwa zida za propylene za Qingdao Jinneng, Wangtong, ndi Zhenghe m'derali, pomwe chipangizo chokonzera magalimoto choyambirira sichinayambitsidwenso, ndipo kupezeka kukuyang'anizana ndi msika ndi chithandizo china, ndipo kuchuluka kwa kupanga kwa PDH mdziko lonse ndi 69.79% kuyambira masiku 14, komwe ndi 0.2% yotsika kuposa kuzungulira kwapita. Ndi kugwa kwa zomangamanga za propylene, zinthu zomwe makampani opanga propylene amapanga sizikhala zapamwamba kwambiri, mtengo woperekedwa umakwezedwa pang'onopang'ono, chidwi chogula pansi chimakhala chabwino, ndipo mlengalenga wonse wamalonda uli bwino.

Munthawi imeneyi, njira zitatu za propylene zimasakanikirana, ndipo phindu la propane dehydrogenation kukhala propylene limawonekera bwino. Kumbali imodzi, mtengo wa propane ukupitirira kutsika panthawiyi, ndipo kumbali ina, mtengo wa propylene monomer ndi wamphamvu, zomwe zimapangitsa kuti phindu liziyenda bwino. Phindu la naphtha ndi methanol kukhala propylene likupitirira kutsika, ndipo phindu la methanol kukhala propylene likutsika kwambiri, zomwe zidakhudzidwa kwambiri ndi kukwera kwa mtengo wa methanol, zomwe zidalepheretsa phindu. Phindu la propylene kukhala propylene limayamba kutsika kuyambira sabata yatha, chomwe chimakhudza kwambiri mtengo wa naphtha m'mwamba, komanso phindu lomwe limabwera chifukwa cha kukoka, likuyembekezeka kuti phindu la propylene liziyenda bwino kwakanthawi kochepa, mochedwa samalani kwambiri mtengo wamsika wazinthu zopangira.

Munthawi yochepa, kumbali yopereka, ndi kuyambiranso kwa zida za PDH ku Shandong, katundu wa zomwe zangoyamba kumene kupanga ukuwonjezeka pang'onopang'ono, ndipo kuchuluka kwa propylene komwe kulipo kukuyembekezeka kuwonjezeka, koma malo oimika magalimoto kwakanthawi kwa zida za fakitale iliyonse ku Shandong apereka chilimbikitso pamsika. Kumbali yofunikira, pakadali pano, msika wa polypropylene umakhala wolimba, phindu la ufa ndilabwino, mafakitale akum'mwera amangofunika kugula makamaka, pomwe sabata yamawa PO, fakitale ya acrylonitrile ikuyembekezeka kuyambiranso, zikuyembekezeka kuti msika wa propylene wa kanthawi kochepa ukhoza kukwera pang'ono, koma malo okwera ndi ochepa, tsatirani bwino kuyambitsanso ndi kutumiza kwa opanga propylene.

Mbali yofunikira, msika wa polypropylene ukuchulukirachulukira, chithandizo cha mbali yofunikira chili champhamvu, mtengo wa propylene wokhazikika unatsika, kufalikira pakati pa propylene ndi PP kunakula, phindu la fakitale yotsika linawonjezeka pang'onopang'ono, chidwi chogula chinawonjezekanso pang'onopang'ono, zomwe zinapangitsa kuti makampani a propylene atumize bwino, malo osungira zinthu pang'onopang'ono anatsika, ndipo mitengo ya propylene inakwera.