iindaba

Kwiminyaka yakutshanje, njengoko itekhnoloji ikhula kunye nokuqhubekeka kolwabiwo lwentengiso, ishishini lepetrochemical, i-olefin ibonelela ngeendlela ezahlukeneyo zophuhliso lwemathiriyeli ekrwada, ngakumbi phantsi kwemvelaphi yekhabhoni ephindwe kabini, iindaba ezinkulu ezinxulumene noBob propane, ngamandla omnqweno kaLeon, kwaye ioli yemveli olefin/amalahle ukuya olefin/methanol ukuya olefins, propane dehydrogenation inkqubo kwipropylene isivuno yayiphezulu Izinto ekrwada enye Inkqubo emfutshane, ixabiso eliphantsi lotyalo-mali, iinzuzo zoqoqosho eziphezulu zivelele Kodwa ummeli wepropylene, ipropane dehydrogenation process products by. -imveliso ye-hydrogen, umthombo omnye wezinto eziluhlaza unokugcinwa kuphela imveliso yepolypropylene yezinto ngokubanzi, ngokufika komjikelo omtsha wokwandiswa komjikelo wepolypropylene kwenza ukuba kuqaqambe ngakumbi ukungahambelani kolwakhiwo phakathi konikezelo kunye nemfuno, uphuhliso lwepolypropylene ephezulu ibe yeyona nto iphambili. iindlela eziphambili zokhuphiswano ngokwahlukileyo, kulo mjikelo wokhuphiswano, propane dehydrogenation PP technology competitiveness yaqala ukuwa, nangona kukho inxalenye yeshishini Nangona kunjalo, ukungabikho kwe-ethylene kuye kwaba yibhodi emfutshane yenkqubo yePDH.Okwangoku, i-China ayinayo izibonelelo ezifanelekileyo kwaye umthamo wokubonelela nge-hydrocarbon yokukhanya ayanelanga.Uninzi lwezinto ezibonakalayo kufuneka zingeniswe kumazwe angaphandle, ngoko ukuzinza kokunikezelwa kwezinto ezibonakalayo kuba ngundoqo ekuphuhliseni inkqubo ye-hydrocarbon ekhanyayo Ukususela kwi-2014 ukuya kwi-2018, iprojekthi eqhelekileyo yayiyi-propane dehydrogenation.Nangona kunjalo, ukusukela ngo-2018, ukuthandwa kokuqhekeka kwe-hydrocarbon ekhanyayo kunyuke ngokukhawuleza ngenxa yokuguquguquka okunamandla kunye ne-ductility.Ezinye iiprojekthi zolingo ziye zafakwa kwimveliso ngo-2020.

Imveliso ye-ethylene ye-ethane, ipropane kunye ne-butane yokuqhekeka iphezulu.Kumashishini okusetyenziswa okubanzi kwe-hydrocarbon, isivuno se-ethylene sinempembelelo ecacileyo kakhulu kwimveliso yeekhemikhali esezantsi, kwaye ukhetho lwendlela esezantsi lunokuguquguquka okuphezulu kunye nendawo yokukhetha.Inkqubo enemveliso ephezulu yepropylene yiPDH MTP C / MTO, kodwa imveliso ekujoliswe kuyo yokuqhekeka kwe-hydrocarbon ekhanyayo inesivuno esiphezulu kwaye inokuvelisa i-hydrogen ecocekileyo njengemveliso, ethathwa njengenye yeendlela ezibalulekileyo zokunciphisa. ukuxhomekeka kwepetroleum kunye nokusetyenziswa kwamandla kwishishini.Ke ngoko, umfutho wophuhliso lweeprojekthi zokuqhekeka kwe-hydrocarbon yasekhaya ikhawuleza kakhulu, kwaye uninzi lwabadlali abatsha abangenakho ukusetyenzwa kweoyile ekrwada nabo bangenile Ngophuhliso oluqhubekayo lwezinto eziluhlaza zokukhanya, iindlela zokufumana ipropylene ziyanda.Emva kwepropane dehydrogenation, iiprojekthi zokuqhekeka kwe-hydrocarbon ezikhanyayo ziya zikhula ngokuthe ngcembe.Ipropane ayisiyiyo kuphela imathiriyeli ekrwada ye-dehydrogenation ukuvelisa ipropylene, kodwa ikwayeyona nto iphambili ekrwada yokuqhekeka kwe-hydrocarbon ukuvelisa ipropylene.Uthini umahluko kwisakhiwo semveliso phakathi kwepropane dehydrogenation kunye nokuqhekeka kwe-hydrocarbon ekhanyayo?Yeyiphi inkqubo eya kukhuphisana ngakumbi kwiindawo zokuvelisa kwixesha elizayo?Phakamisa ipropane njengeyona nto iphambili yokuvelisa itekhnoloji yokunqongophala kwepropylene kwilizwe lethu, isekela lemveli lemveliso yepropylene ayinakuhlangabezana nemfuno eyandayo yemveliso yepropylene yasekhaya, kwangaxeshanye, kuMbindi Mpuma nakuMntla Merika uphuhliso lwerhasi ye-shale yenza imveliso yepropane. ukunyuka kokuthunyelwa kwempahla kumazwe angaphandle ukwanda okukhulu, ukunyuka kweteknoloji yepropane yasekhaya ibonelela ngemathiriyeli ekrwada eyaneleyo ukuxhasa Inkqubo yokuvuma elula Isiphumo esifutshane kunye esikhawulezayo sotyalo-mali lweeprojekthi ze-propane dehydrogenation izise amathuba kuphuhliso loqoqosho lwemimandla yonxweme e-China.Ipropane dehydrogenation kunye neeprojekthi ezixubileyo ze-alkane dehydrogenation ziyenyuka eTshayina.Inkqubo yokuvelisa i-olefin ngokukrazula i-hydrocarbon ekhanyayo njengento ekrwada inyuka Enye okanye iindidi ezimbini ze-butane) njengezinto ezibonakalayo zokuqhekeka kwamashishini e-olefin ngokuthe ngcembe landa, njengeBoralidek Basle Petrochemical Xinpu chemical Huatai Shengfu kunye nezinye iindidi ezimbini zenkqubo yokuvelisa iPropane. i-dehydrogenation, njengenkqubo entsha yokuvelisa ipropylene kwipropane njengento enye ekrwada, ivelisa ipropylene ngaphezu kokukhanya kwe-hydrocarbon steam pyrolysis, kodwa kukho iingxaki zezinga eliphantsi lokuguqulwa kwendlela enye kunye neemfuno eziphezulu zezinto eziluhlaza.Imveliso yepropylene yesityalo inokufikelela ngaphezu kwe-80%, enokuthi izise isixa esikhulu sobonelelo lwemathiriyeli ekrwada yepropylene ezantsi Ukukhanya kwe-hydrocarbon yokuqhekeka akunakuphucula kuphela umlinganiselo wepropylene/ethylene isivuno seyunithi, kodwa nokusebenzisa ngokupheleleyo izibonelelo zokucoca, ezilukhokelo lophuhliso lokwakheka kwemathiriyeli ekrwada yeyunithi yokuqhekeka.Ngaphantsi kwemeko yokujikeleza okupheleleyo kwepropane, isivuno se-diene sokukhanya kwenkqubo yokuqhekeka kwe-hydrocarbon sinokufikelela ngaphezu kwe-60%, kwaye iimveliso eziveliswayo zininzi kakhulu kune-propane dehydrogenation.

I-propane dehydrogenation alternaria alternata propylene nge-propylene ye-hydrogen gas, ukuba imveliso ye-hydrogen ngaphandle kwemijelo yokuthengisa, inokutshisa kuphela njengegesi yamafutha, iya kuchaphazela ngokuthe ngqo uqoqosho lwe-propane dehydrogenation, xa kuthelekiswa nokuqhekeka kwe-hydrocarbon ekhanyayo, i-propane dehydrogenation (i-hydrogen burn) Ixabiso leyunithi ye-olefin liphezulu kunenkqubo ye-propane dehydrogenation, iimveliso eziphambili zokuqhekeka kwe-hydrocarbon yokukhanya ye-ethylene propylene, imveliso ye-hydrogen fuel gas mix of carbon four Mixed carbon five, inokusombulula i-propane dehydrogenation ngokwayo ngaphandle kwe-ethylene kunye ne-butene ukuzisola, i-pyrolysis Iimveliso eziphumayo zinokuphinda ziqonde ixabiso lazo, kwangaxeshanye zinenzuzo yeendleko eziphantsi, zinokuba kwimarike ye-copolymerization engalawulwayo kunye nempembelelo ye-copolymerization, uqoqosho oluthe kratya kwiminyaka yakutshanje Ishishini lamandla e-hydrogen linomgaqo-nkqubo onamandla wokuqhuba. .Ngaxeshanye, kunye nokwanda kwenani leemeko zesicelo se-terminal, icala lemfuno yentengiso liye lanyusa ngokuthe ngcembe ishishini lamandla e-hydrogen ukuya kumlinganiselo othile, kwaye uninzi lwamashishini asekhaya e-propane dehydrogenation aqalisile ukunikela ingqalelo Iitshaneli zabo zokuthengisa kunye nezicwangciso zokusebenzisa i-hydrogen ngemveliso Kule meko, i-propane dehydrogenation, nokuba ithengiswa njenge-hydrogen ye-industrial okanye njenge-fuel cell hydrogen ebiza kakhulu okanye i-hydrogen ephezulu yokucoca, iya kubonelela ngembuyekezo yezoqoqosho kwaye ngaloo ndlela ikhulise inzuzo yeenkampani ze-propane dehydrogenation. .Ngokuthelekisa, iteknoloji yepropane dehydrogenation inenkqubo emfutshane kunye nokusetyenziswa okuphantsi Isivuno esiphezulu kunye neendleko eziphantsi zotyalo-mali lwesethi enye yezixhobo.Ukuba inokudibaniswa kunye nezixhobo ezijikelezayo zokucoca ukubonelela nge-hydrogen yokucoca kunye nokwandisa inzuzo ngokubonelelwa ngokulinganayo kwezinto eziluhlaza, inzuzo yokukhanya kwe-hydrocarbon yokuqhekeka ilele kwisikali esikhulu sotyalo-mali, iintlobo zeemveliso kunye nokukwazi ukuxhathisa iingozi zemarike.Uqoqosho lwezi zibini luxhomekeke kakhulu kwi-ethylene kunye nexabiso lePropylene: Indlela ye-propane dehydrogenation inoqoqosho ngakumbi xa ixabiso le-ethylene kunye nepropylene lisondele, kwaye indlela yokuqhekeka kwe-hydrocarbon ilula kakhulu xa ixabiso le-ethylene liphezulu kunepropylene.

Ipropane dehydrogenation imathiriyeli ekrwada enye, isebenzisa kuphela ipropane njengezinto ezikrwada, imveliso kuphela yepropylene kunye ne-hydrogen yemveliso, ukukhuselwa kwekhabhoni ephantsi hayi kuphela, kusenokunciphisa umngcipheko wezinye izinto, isentsha ngoku kukhetho oluphambili lwetekhnoloji yeshishini, uninzi lwemveliso yaseTshayina yesixhobo sePDH esihambelana nesixhobo esisezantsi, imeko yokuhlanganiswa koshishino ngokucacileyo, kodwa ekuhambeni kwexesha, indawo yophuhliso lwekhonkco loshishino olusezantsi lumxinwa, uxinzelelo lweMarike lukhulu, kwimveliso yepolypropylene yasekhaya iphindwe kabini kukhuphiswano lweemarike eziqatha, Ukhuphiswano lweprojekthi ye-ethylene propane dehydrogenation lufanele ukuphononongwa kwakhona.

Xa kuthelekiswa ne-propane dehydrogenation, inkqubo yokuqhekeka kwe-hydrocarbon ekhanyayo inezisombululo zemveliso ezahlukeneyo kunye nefuthe elinamandla lemarike.Ngokuthelekisa, uqoqosho lwenkqubo ye-propane dehydrogenation ikakhulu ixhomekeke kumahluko wexabiso phakathi kwepropylene kunye nepropane.Xa ixabiso lemarike yepropylene liguquguquka kwaye liyancipha, uqoqosho lwenkqubo ye-propane dehydrogenation luya kuncitshiswa kakhulu.

Kwishishini le-polypropylene, i-propane source accounts yecandelo elincinci, nangona liye landa ukusuka kwi-7% kwi-2015 ukuya kwi-15% kwi-2022, ayikahlali kwindawo eqhelekileyo kwiimarike kwaye inelungelo elibuthathaka kwixabiso lemveliso ye-polypropylene.Nangona kunjalo, ngophuhliso oluqhubekayo lwamandla alula kunye nezixhobo zemichiza e-China, ukuhlukahluka kwemithombo yeoli ekrwada enyukayo ye-polypropylene iyajika, kwaye ngokufika kwexesha le "propane", ayiyi kuba kude ngaphambi kwe-naphtha, ipropane kunye namalahle. ziya kwahlulwa zibe ziinxalenye ezintathu zehlabathi.