izindaba

Eminyakeni yamuva nje, njengoba ubuchwepheshe buvuthwa kanye nokwenza ngcono okuqhubekayo kokwabiwa kwemakethe, imboni ye-petrochemical, i-olefin yethula umkhuba wokuthuthuka ohlukahlukene wezinto zokusetshenziswa, ikakhulukazi ngaphansi kwesizinda sekhabhoni ephindwe kabili, izindaba ezinkulu ezihlobene ne-Bob propane, ingamandla esifiso sikaLeon, futhi uwoyela wendabuko olefin/amalahle ku-olefin/methanol ku-olefin, inqubo ye-propane dehydrogenation ku-propylene isivuno sasiphezulu Izinto ezingavuthiwe zenqubo eyodwa Efushane, izindleko eziphansi zokutshala imali, izinzuzo eziphezulu zezomnotho ziyagqama Kodwa ummeli we-propylene, imikhiqizo yenqubo ye-propane dehydrogenation by -umkhiqizo we-hydrogen, umthombo owodwa wezinto zokusetshenziswa ungagcinwa kuphela ukukhiqizwa kwe-polypropylene yezinto ezijwayelekile, lapho kufika umjikelezo omusha womjikelezo wokunwebeka we-polypropylene kwenza kugqame kakhulu ukungafani kwesakhiwo phakathi kokunikezwa nokufunwa, ukuthuthukiswa kwe-polypropylene ephezulu ibe izindlela eziyinhloko zokuncintisana okuhlukanisiwe, kulo mzuliswano wokuncintisana, ukuncintisana kobuchwepheshe be-propane dehydrogenation PP kwaqala ukuwa, nakuba kunengxenye yebhizinisi Nokho, ukuntuleka kwe-ethylene kuye kwaba ibhodi elifushane lenqubo ye-PDH.Ngaleso sikhathi, i-China ayinazo izinsiza ezifanele futhi amandla okuhlinzeka nge-hydrocarbon ekhanyayo awanele.Iningi lezinsiza ezisetshenziswayo zidinga ukungeniswa kwamanye amazwe, ngakho-ke ukuzinza kokunikezwa kwezinto ezingavuthiwe kuba yisihluthulelo sokuthuthukiswa kwenqubo ye-hydrocarbon ekhanyayo Kusukela ngo-2014 kuya ku-2018, iphrojekthi evamile kwakuyi-propane dehydrogenation.Kodwa-ke, kusukela ngo-2018, ukuthandwa kokuqhekeka kwe-hydrocarbon ukukhanya kukhuphuke ngokushesha ngenxa yokuguquguquka okunamandla kanye ne-ductility.Amanye amaphrojekthi okulinga afakwe ekukhiqizweni ngo-2020.

Isivuno se-ethylene se-ethane, i-propane ne-butane siphezulu.Kumabhizinisi amancane asebenzisa i-hydrocarbon ebanzi, isivuno se-ethylene sinomthelela osobala kakhulu ekukhiqizweni kwamakhemikhali asezansi nomfula, futhi ukukhethwa komzila ongezansi kunokuguquguquka okuphezulu nendawo yokukhetha.Inqubo enesivuno esiphezulu se-propylene i-PDH MTP C/MTO, kodwa umkhiqizo ohlosiwe wokuqhekeka kwe-hydrocarbon elula unesivuno esiphezulu futhi ungakhiqiza i-hydrogen ehlanzekile njengomkhiqizo owenziwe, oye wathathwa njengenye yezindlela ezibalulekile zokunciphisa. ukuncika kwe-petroleum kanye nokusetshenziswa kwamandla embonini.Ngakho-ke, umfutho wokuthuthukiswa kwemiklamo yasekhaya yokuqhekeka kwe-hydrocarbon iyashesha kakhulu, futhi abadlali abaningi abasha abangenalo ikhono lokucubungula uwoyela ongahluziwe nabo bangenile Ngokuthuthuka okuqhubekayo kwezinto eziluhlaza ezikhanyayo, izindlela zokuthola i-propylene ziyanda.Ngemuva kwe-propane dehydrogenation, amaphrojekthi wokuqhekeka kwe-hydrocarbon akhula kancane kancane.I-propane ayiyona nje into eluhlaza ye-dehydrogenation ukukhiqiza i-propylene, kodwa futhi i-material eluhlaza eyinhloko yokuqhekeka kwe-hydrocarbon ukukhiqiza i-propylene.Uyini umehluko ekwakhiweni komkhiqizo phakathi kwe-propane dehydrogenation nokuqhekeka kwe-hydrocarbon ekhanyayo?Iyiphi inqubo ezoncintisana kakhulu ezikhungweni zokukhiqiza zesikhathi esizayo?Phakamisa i-propane njengobuchwepheshe obuphambili bokukhiqiza impahla eluhlaza Ukushoda kwe-propylene ezweni lethu, isekela lendabuko uhla lokukhiqizwa kwe-propylene alikwazi ukuhlangabezana nesidingo esandayo sokuphuma kwe-propylene yasekhaya, ngesikhathi esifanayo, ukuthuthukiswa kwe-Middle East kanye ne-north American shale gas kwenza ukukhiqizwa kwe-propane. ukwanda kokuthunyelwa kwempahla kwamanye amazwe ukwanda okukhulu, ekukhuphukeni kobuchwepheshe be-propane basekhaya kunikeza izinto zokusetshenziswa ezanele ukusekela Inqubo elula yokugunyaza Umphumela omfishane futhi osheshayo wokutshalwa kwezimali kwemiklamo ye-propane dehydrogenation ilethe amathuba ekuthuthukisweni komnotho wezindawo ezisogwini lwaseChina.I-propane dehydrogenation kanye namaphrojekthi we-alkane dehydrogenation exubile ayakhuphuka eChina.Inqubo yokukhiqiza i-olefin ngokuqhekeka i-hydrocarbon ekhanyayo njengempahla eluhlaza ikhuphuka Uhlobo olulodwa noma ezimbili ze-butane) njengezisetshenziswa zokusetshenziswa zokuqhekeka kwamabhizinisi e-olefin yanda kancane kancane, njengeBoralidek Basle Petrochemical Xinpu chemical Huatai Shengfu nezinye izinhlobo ezimbili zenqubo yokukhiqiza iPropane. i-dehydrogenation, njengenqubo entsha yokukhiqiza i-propylene kusuka ku-propane njengento eyodwa eluhlaza, ikhiqiza i-propylene eningi kune-light hydrocarbon steam pyrolysis, kodwa kukhona nezinkinga zezinga eliphansi lokuguqulwa kwendlela eyodwa kanye nezidingo eziphezulu zezinto zokusetshenziswa.Isivuno se-propylene yesitshalo singafinyelela ngaphezu kwama-80%, okungaletha inani elikhulu lempahla yokusetshenziswa ye-propylene phansi komfula Ukuqhekeka kwe-hydrocarbon ekhanyayo akukwazi nje ukuthuthukisa isilinganiso se-propylene/ethylene yeyunithi, kodwa futhi nokusebenzisa ngokugcwele izinsiza zokucwenga, okuyisiqondiso sokuthuthukiswa kokwakheka kwempahla eluhlaza yeyunithi yokuqhekeka.Ngaphansi kwesimo sokujikeleza okugcwele kwe-propane, isivuno se-diene senqubo yokuqhekeka kwe-hydrocarbon ekhanyayo singafinyelela ngaphezu kwe-60%, futhi imikhiqizo ekhiqizwayo igcwele kakhulu kune-propane dehydrogenation.

I-propane dehydrogenation alternaria alternata propylene by-propylene by-product hydrogen gas, uma i-hydrogen yomkhiqizo ngaphandle kwamashaneli okuthengisa, ingasha kuphela njengegesi yamafutha, izothinta ngokuqondile umnotho we-propane dehydrogenation, uma kuqhathaniswa nokuqhekeka kwe-hydrocarbon, i-propane dehydrogenation (i-hydrogen burn) Izindleko zeyunithi ye-olefin ziphakeme kakhulu kunenqubo ye-propane dehydrogenation, imikhiqizo eyinhloko yokuqhekeka kwe-hydrocarbon ekhanyayo ye-ethylene propylene, ingxube ye-hydrogen fuel gas carbon four Mixed carbon five, ingaxazulula i-propane dehydrogenation ngokwayo ngaphandle kwe-ethylene ne-butene ukuzisola, i-pyrolysis imikhiqizo ekhiqizwayo ingaphinde ibone ukubaluleka kwayo, ngesikhathi esifanayo inenzuzo yezindleko eziphansi, ingaba semakethe ye-copolymerization engalawulwa kanye nomthelela we-copolymerization, umnotho owengeziwe eminyakeni yamuva Imboni yamandla e-hydrogen inenqubomgomo enamandla yokushayela amandla. .Ngaso leso sikhathi, ngokwanda kwenani lezimo zokufaka isicelo esibulalayo, uhlangothi lwesidingo semakethe luye lwakhulisa kancane kancane imboni yamandla e-hydrogen ngokwezinga elithile, futhi iningi lamabhizinisi asekhaya e-propane dehydrogenation aseqalile ukunaka noma ngisho nesakhiwo. iziteshi zabo zokuthengisa kanye nezinhlelo zokusebenzisa i-hydrogen ngomkhiqizo Kulesi simo, i-propane dehydrogenation, kungakhathaliseki ukuthi ithengiswa njenge-hydrogen yezimboni noma njenge-fuel cell hydrogen ebiza kakhulu noma i-hydrogen ehlanzekile, izohlinzeka ngembuyiselo yezomnotho futhi ngaleyo ndlela ikhulise inzuzo yezinkampani ze-propane dehydrogenation. .Ngokuqhathanisa, ubuchwepheshe be-propane dehydrogenation bunenqubo emfushane kanye nokusetshenziswa okuphansi Isivuno esiphezulu kanye nezindleko eziphansi zokutshala izimali zesethi eyodwa yamadivayisi.Uma ingahlanganiswa nemishini yokucwenga ezungezile ukuze kuhlinzekwe nge-hydrogen ukuze icwengisiswe futhi kwandiswe izinzuzo ngokuhlinzeka ngokuhlanganyela kwezinto zokusetshenziswa, inzuzo yokuqhekeka kwe-hydrocarbon elula isesikalini esikhulu sokutshalwa kwezimali, imikhiqizo ehlukahlukene kanye nekhono eliqinile lokumelana nezingozi zemakethe.Umnotho walokhu okubili ikakhulukazi uncike enanini le-ethylene ne-Propylene: Umzila we-propane dehydrogenation uyonga kakhulu lapho amanani e-ethylene ne-propylene eseduze, futhi umzila wokuqhekeka we-hydrocarbon okhanyayo ungonga kakhulu lapho amanani e-ethylene ephakeme kune-propylene.

I-propane dehydrogenation impahla eluhlaza eyodwa, isebenzisa kuphela i-propane njengezinto zokusetshenziswa, umkhiqizo kuphela we-propylene kanye ne-hydrogen yomkhiqizo, ukuvikelwa kwemvelo okuphansi kwekhabhoni hhayi nje kuphela, kusenganciphisa ubungozi bezinye izici, kuseyintsha ekhona ekukhetheni okuyinhloko kwezobuchwepheshe kwebhizinisi, ingxenye enkulu yokukhiqizwa kwe-PDH yedivayisi ehambisana nomfula ohambisana nomfula, inkambiso yokuhlanganiswa kwemboni ngokusobala, kodwa ngokuhamba kwesikhathi, indawo yokuthuthukiswa kweketanga lemboni engezansi komfula incane, ukucindezela kweMakethe kukhulu, kumthamo wokukhiqiza we-polypropylene wasekhaya uphindwe kabili emqhudelwaneni oshubile wemakethe, Ukuncintisana kwephrojekthi ye-ethylene propane dehydrogenation kuwufanele ukuhlolwa kabusha.

Uma kuqhathaniswa ne-propane dehydrogenation, inqubo yokuqhekeka kwe-hydrocarbon elula inezixazululo zemikhiqizo ehlukahlukene kanye nomthelela wemakethe onamandla.Uma kuqhathaniswa, umnotho wenqubo ye-propane dehydrogenation ikakhulukazi uncike emehluko wamanani phakathi kwepropylene nepropane.Lapho intengo yemakethe ye-propylene iguquguquka futhi yehla, umnotho wenqubo ye-propane dehydrogenation uzokwehla kakhulu.

Embonini ye-polypropylene, i-akhawunti yomthombo we-propane iyingxenye encane, nakuba ikhuphuke isuka ku-7% ngo-2015 yaya ku-15% ngo-2022, namanje ayihlali emakethe emakethe futhi inelungelo elibuthakathaka lokuthenga imikhiqizo ye-polypropylene.Kodwa-ke, ngokuthuthukiswa okuqhubekayo kwamandla angasindi kanye nezinto zokusetshenziswa zamakhemikhali e-China, ukuthambekela kokuhlukahluka kwemithombo yamafutha angcolile e-polypropylene kuyashintsha, futhi ngokufika kwenkathi "ye-propane", ngeke kube kude ngaphambi kwe-naphtha, i-propane namalahle. izohlukaniswa izingxenye ezintathu zomhlaba.