Kulamulira Kuchuluka kwa Ethylene mu Kupanga Mphira

Rabala yopangidwa ndi anthu ndi elastomer yopangidwa ndi anthu yopangidwa ndi zinthu zopangidwa ndi mafuta. Nthawi zambiri imagwiritsidwa ntchito pazinthu monga magalimoto - matayala, zitseko ndi mawindo. Kuchotsa monomer wosaphika kumaphatikizapo kuyeretsa magawo amafuta awa - kudzera munjira monga kusweka kwa naphtha ndi distillation - kuti ayeretse ma monomer omwe akufuna, chifukwa zodetsa zingasokoneze polymerization reaction yotsatira. Ma monomer oyeretsedwa omwe amatsatira nthawi zambiri amakhala ndi chiyero cha 99.5% kapena kupitirira apo, zomwe zimayika maziko a kupanga rabala.

Gawo lalikulu lopangira ndi polymerization: ma monomers oyeretsedwa amasakanizidwa ndi zoyambitsa ndipo amamwazidwa m'madzi kapena kusungunuka mu organic solvents. Njirayi imasintha mamolekyu ang'onoang'ono a monomer kukhala maunyolo atali a polima, zomwe zimapangitsa kuti mphira wosaphika ukhale ndi 80-90%. Gawo lotsatira lofunika kwambiri ndi vulcanization, komwe sulfure kapena peroxides zimawonjezedwa ndikutenthedwa kuti zipange maulalo pakati pa maunyolo a polima - mphira wosavulidwa ndi wofewa kwambiri komanso womata kuti ukhale wothandiza. Poyamba mphira wosavulidwa umakhala ndi kuyera kwa polima kwa 95-98%, koma pa ntchito zapamwamba, kuyeretsa kwina kumafunika.

Kuvuta Kuyeza Kuchuluka kwa Ethylene

Mu kapangidwe ka rabala, makamaka pa ethylene-propylene-diene monomer (EPDM) kapena ethylene-propylene rabala (EPR/EPM), kuyeza molondola kuchuluka kwa ethylene ndikofunikira kwambiri powongolera kayendedwe ka polymerization, kuonetsetsa kuti zinthu za polima zimakhala zofanana komanso kuchepetsa zinyalala.

Chidule cha Njira Yopangira Rubber

Kupanga mphira wa EPDM/EPR nthawi zambiri kumaphatikizapo:

Kutumiza ZakudyaEthylene ndi propylene (ndi diene ya EPDM) zimayikidwa ngati mpweya mu reactor, nthawi zambiri zimasungunuka mu solvent kapena kusungidwa mu gasi/madzimadzi.

Choyatsira cha Polymerization: CSTR kapena reactor ya loop pomwe ma monomers amachitapo kanthu ndi ma catalyst pa 30-90°C ndi 10-30 bar, ndikupanga unyolo wa polima.

Kubwezeretsa Zosungunulira/MonomerMa monomers osakhudzidwa amachotsedwa, kubwezeretsedwanso, kapena kutsukidwa, nthawi zambiri kudzera mu kuwononga kapena ma flash drums.

Kumaliza: Polima imalekanitsidwa, kutsukidwa, ndi kutulutsidwa, ndikuwunika ubwino wa kachulukidwe ndi kukhuthala kwa Mooney.

Ethylene imagwira ntchito ngati monomer yofunika kwambiri popanga rabara, chinthu chofunikira kwambiri mumakampani opanga petrochemical. Kuchuluka kwa monomer iyi mkati mwa chotengera cha reaction kumayang'anira mwachindunji kayendedwe ka polymerization ndipo, motero, mawonekedwe ndi kapangidwe ka mankhwala a polima yomaliza, monga kulemera kwa molekyulu ndi kutentha kosungunuka. Pamene kuchuluka kwa ethylene sikuyendetsedwa bwino, polima yomwe imachokera imatha kuwonetsa polydispersity yosalamulirika, zomwe zimapangitsa kuti kulemera kwa molekyulu kugawikane kwambiri komanso khalidwe lomaliza la chinthucho lisagwirizane. Mwachitsanzo, pali ubale wolunjika pakati pa kukwera kwa kuthamanga kwa ethylene ndi kuchuluka kwa ethylene mu ma copolymer opangidwa, zomwe zimakhudza kutentha kwawo kosungunuka.

Kusinthaku kwa khalidwe la malonda kumakhudza ndalama mwachindunji komanso mooneka. Pofuna kuonetsetsa kuti gulu lililonse lopangidwa likukwaniritsa zofunikira zochepa za khalidwe, ogwira ntchito nthawi zambiri amagwiritsa ntchito njira yotchedwa "kupatsa khalidwe". Izi zimaphatikizapo kupanga mwadala chinthu chokhala ndi makhalidwe abwino omwe amaposa zofunikira, zomwe zimapangitsa kuti ntchitoyi ichitike mopitirira muyeso komanso mowongolera. Kuchita izi, ngakhale kuonetsetsa kuti zinthu zilandiridwa, kumabweretsa kuwonjezeka kwa kugwiritsa ntchito zinthu zopangira, kugwiritsa ntchito mphamvu zambiri, komanso nthawi yayitali yozungulira, zomwe zonsezi zimapangitsa kuti pakhale ndalama zambiri zogwirira ntchito komanso kuchepa kwa phindu. Vuto lalikulu la vutoli si vuto la njira ya mankhwala yokha, koma kusowa kwa njira yoyezera nthawi yeniyeni ndi kuzungulira kolamulira komwe kumayendetsa, zomwe zimapangitsa kuti pakhale njira yogwirira ntchito yogwira ntchito m'malo mochita zinthu mwachangu.

Lankhulani ndi katswiri wathu kuti muwone zomwe mukufuna kuchita.

Funsani Katswiri

Njira Yoyesera Kukhazikika kwa Lonnmeter Yosalekeza

Kusanthula kwachikhalidwe kochokera ku labu komwe sikuli pa intaneti sikoyenera pa zofuna zamphamvu komanso zopitilira za mzere wamakono wopanga. Nthawi zambiri zimapangitsa kuti kusanthula kuchedwe komanso kuyeza mobwerezabwereza ntchito. Mwanjira ina, deta yomwe ogwira ntchito amalandira ndi chithunzi cha ndondomekoyi kuyambira mphindi kapena maola. Kusowa kwa chidziwitso kumayambitsa kusintha kwa khalidwe pambuyo poti kwachitika kale komanso mwina pambuyo poti gulu lonse lawonongeka, zomwe zimapangitsa kuti pakhale kuwononga ndalama zambiri komanso kukonzanso ntchito.

Lonnmeter yapanga mainjiniyakuchuluka kwa sensa ya ethylenekuti muyesere kuchuluka kolondola nthawi yeniyeni mu njira yopitilira ya mankhwala. Imagwira ntchito bwino ngakhale pamalo osinthasintha mwachangu; Chida choyezera kuchuluka kwa ethylene pa intaneti ndi chida cha mafakitale chomwe chimapangidwa kuti chikwaniritse zofunikira zoyezera zenizeni za njira zamakemikolo. Chimagwiritsa ntchito ukadaulo wapamwamba wozindikira -- gwero la chizindikiro cha mawu kuti lisangalatse foloko yosinthira yachitsulo, zomwe zimapangitsa kuti foloko igwedezeke pafupipafupi yake yachilengedwe. Chodziwika bwino ndi chakuti, kuchuluka kwa resonant kumeneku kumawonetsa kulumikizana mwachindunji ndi kuchuluka kwa madzi komwe foloko yosinthira imakumana nako. Pambuyo pake, kuchuluka kwa madzi kumatha kudziwika kudzera mu kusanthula pafupipafupi - ndi kubweza kutentha komwe kumachitika kuti kuthetse kusuntha kwa kutentha mkati mwa dongosolo, kuonetsetsa kuti kuyeza kuli kolondola.

Chiyeso cha Ethylene Concentration

Kuyeza kuchuluka kwa madzi m'mapaipi kapena m'mathanki mosalekeza

Kapangidwe ka Foloko Yokonzera

Kuyika Malo mu Njira Yopangira Rubber

Mzere Wodyetsa wa Monomer: Ikani sensa mu pipeline ya ethylene feed post-compressor kuti muwonetsetse kuti ndi yoyera komanso kusintha mlingo.
Malo Olowera a ReactorIkani pamalo osakanikirana a monomer-solvent ndi hexane/propylene kuti muwongolere ethylene yosungunuka.
Mu Reactor: Ikani mkati mwa CSTR pafupi ndi choyambitsa kuti muwongolere polymerization nthawi yeniyeni.
Mzere Wobwezeretsanso: Pezani pamalo otulutsira ng'oma kuti muwongolere bwino kuchira kwa ethylene kosakhudzidwa.
Mzere Wotulukira: Ikani mu mzere wotsukira/kutulutsa mpweya kuti muwonetsetse kuti mpweya woipa ukutuluka ndikuwonetsetsa kuti uli wotetezeka.