Kulokhu esizange sibheke umdlalo wemayisini, incwadi yemayisini nebagu lemayisini, singahamba nokuthiwa ngaphandle kanye nokubona ukuthi amabhango amaphi angenziwa. Isixhumanisi esidingi lapho sizaqale kulapho sibona kulesi sicwangciso siyaziyo kwindawo yokugcina elizweni lethu, lokungaba imikhakha yakho, uphawu lomncedo, kunye nesikhashana sesikhomphondvo. Umthombo wesixhumanisi: Ngithanda ukuba uthi uqonda ngalinye ilimi ezame ukunika umthombo wesixhumanisi? Yehla sengxoxe le ncamulo nethu!
Ukusebenzisa polyethylene, kufuneka kuneemvelo ezikhoyo zokuthiwe ngempela, kunye neengxenye ezininzi yiingasili nge- natural gas noma crude oil. Le ndawo zakusebenza kuyizinto eziphakeme ezaziqashelwa ukwenzela polyethylene. Isimo soku 1: Ukuphazamiswa kwesimo lwenqanawe lusaphulelwa ukwenza polyethylene. Lendlela leyo, amavuthi angayihlabisekwa kunye nokuba ingasili igcine ukuze ifanele i-gas elithi ethylene. Lo mtshonyama umkhosi wakhe ungaphambili, ngoba ethylene yilomgci ophambili we-polyethylene. Ngemuva kokuthiweyo kwe-ethenel gas, kufuneka lihlale inqanawa ezindala ngokubalulekile kabusha ukuba baze benze polyethylene entsha.
I-Polyethylene uhlawuliwe ngokupheleleyo kwi-crude oil kunye no-natural gas. Amanani aya kuqale amaphethanani afugulwa ifuthe lokungakhulu. Ngemva kokuthi babengethwe kusasiphambili, babalwa emanzini wamafaktori amahhovha-angase petrochemical plants. Ukubala kwakufuneka ngepipelayenti zokuqala nezinkhovhovho ezinomsindo okukhulu lezi manani. Amathambo amabomvu abalwa ngumthombo omuhle obucabanga ukuthi ubhalwe ngokusemthethweni sikhathu nokuphazama, sibhedelela amathambo amabomvu ngokuncane.kuwo elements ukuze ushize ethylene gas esifuyene.
Umgashi wokudibanisa olungumoya lwesayensi luhambisana kwisekhono esingekho lokwenzeka ngokupheleleyo kunye noluhlu lolunqanawa oluthiwe ngempela uphakamisi. Lapha, umthi omkhulu! Amagashi lezethileni zibonisa nokujabula kwisekhono lesiphakamisi ukusetyenziswa ukufika amadala amahle. I-polyethylene yilento yokuba amadala amahle ahlukile. Ngemuva kokugcina kweminyaka yomsebenzi, umdlulamo wathathwa njengepeli ezincinci. Zathi aphumelelwa izinkampani zikhethekileyo njengesiYuezheng kunye nokusetshenziswa kuhlanganiswa kwezinto ezininzi zepolyethylene.
I-Polyethylene iyinye nesiphumo esingabangakho ukulandelwa ngamakheli amahhovu. Ukuba lokhu kumahlale amakheli amahhovu akhiwe kuhluhlulekileyo kungaba ngaphansi kokuthi i-Polyethylene ibekengempumelelo yini. Ngokugcineni, okukhulu kokuhlala kwezikheli zimahhovu, kuhluhlulekileyo lomdlalo. Lolu hlobo lusaphuliswe ngokuthi uhlalakahle, eya kuqinisekisa ukuthi i-Polyethylene ungaphindwe nokubhuka ngaphandle kokupheleleka. Ukhokhe wakhe umphathiso wesintfo esingazixhumana kunye nokuziphatha ezininzi izichemikali, lokhu kuyayiphatheka ukuthi ubekwempumelelo emanzini. I-Polyethylene yi-plastic engasetyenziswa ngokubanzi iningi elibekwe ngokuthi lingempumelelo kunye nokuhlalakahle, lokhu kuya kuvunyelwa njenge-mdlalo omncane olungempumelelo yokugcina amacwangciso, amatoyesi, kunye nezinto eziphakeme zezindawo.
Amanqaku amapetro aclass esebenziyo kakhulu ayishumi elizenzekelayo amanqaku okugcinwe kwiiloli yezintuthuko noma igas enkululeko. Amanqaku amahlukene akhuphe izindlela ezininzi zokusetyenziswa ngazo kwiindawo eziningi, njengemibuzo, iimediwesha, umlandukazi, kunye nokuthuthukisa. Yeyiphi lezamanqaku - ethane kunye nophropylene, ngokubanzi - zisetshenziswa ukusetshenziswa kwe-ethylene, olanga kufuneka ukwenza ukusebenzisa polyethylene. Okungakho, kanye nezinhlelo ezinamandla zethu zasetshenziswa, ukuhlawulwa kwamanqaku amapetro, futhi besebenzisa amanqaku amapetro ngokubalulekile kulesi sikhathi.
I-Ethylene yinhlobo eliphambili lamanzi osebenzayo ukulandelana nge-polyethylene. Iphakamise ngokusebenzisa igas noma i-crude oil; iyinye inyanga yokusebenza lokulandelana nepolyethylene. I-Ethylene, okungumoya omnyama engavumeleleyo kunye nokubhukelwe kakhulu, kufuneka amathole ngokuphiindlela. Ngemva kokucabango, le moya wusetshenziswa kunesi sibonelo sokusebenza, esikhundleni sifaka amabhedi amanani kunye ne-packaging film. I-Ethylene yinhlobo yesiphephandaba sesiqephu labasebenzi lokusebenzela ngokuphiindlela. Ngokwesiphi, izifirma zikama Yuezheng azoshintsha ukusebenzisa i-Ethylene elingcede lesikhathi ukuthi usebenze amanani apho ayilandelana nepolyethylene ekupheleni.
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