I-styrene esetyenziswa kwiipholima

I-Styrene yi-hydrocarbon ecacileyo ye-organic liquid eveliswa ngokukodwa kwiimveliso ze-petroleum emva kwenkqubo ye-distillation ye-fractional ukukhupha i-olefins kunye ne-aromatics eyimfuneko kwizinto zekhemikhali zokuvelisa i-Styrene.Uninzi lwezityalo zeekhemikhali zepetrochemical zifana nomfanekiso osekunene.Qaphela ikholamu enkulu ethe nkqo ebizwa ngokuba yintsika ye-fractional distillation.Kulapho amacandelo epetroleum afudunyezwa khona ukuya kumaqondo obushushu aphezulu ngenxa yokuba icandelo ngalinye lemichiza eliphambili linamanqaku ahlukeneyo okubilisa ngaloo ndlela liwahlula ngokuchanekileyo.

I-styrene yinto eyaziwayo kwizangqa zekhemistri njenge-monomer.Ukusabela kweemonomers ezenza "amatyathanga" kunye nokukwazi ukudibanisa kunye nezinye iimolekyuli zibalulekile ekuveliseni iPolystyrene.Iimolekyuli ze-Styrene nazo ziqulethe iqela le-vinyl (ethenyl) elabelana ngee-electron kwi-reaction eyaziwa ngokuba yi-covalent bonding, oku kuvumela ukuba wenziwe kwiiplastiki.Rhoqo, iStyrene iveliswa ngokwenkqubo yamanyathelo amabini.Okokuqala, i-alkylation ye-benzene (i-hydrocarbon engasebenziyo) ene-ethylene ukuvelisa i-ethylbenzene.I-Aluminiyam chloride catalyzed alkylation isasetyenziswa kwizityalo ezininzi ze-EB (ethylbenzene) kwihlabathi jikelele.Emva kokuba oko kwenziwe, i-EB ifakwe kwinkqubo echanekileyo ye-dehydrogenation ngokudlula i-EB kunye ne-steam phezu kwe-catalyst efana ne-iron oxide, i-aluminium chloride, okanye kungekudala, i-fixed-bed zeolite catalyst system yokufumana i-Styrene ecocekileyo kakhulu.Phantse yonke i-ethylbenzene eveliswa kwihlabathi jikelele isetyenziselwa ukwenziwa kwe-styrene.Inkqubela phambili yakutsha nje kwimveliso yeStyrene iye yandisa iindlela enokwenziwa ngazo iStyrene.Enye indlela ngokukodwa isebenzisa iToluene kunye neMethanol endaweni ye-EB.Ukukwazi ukusebenzisa ukutya okwahlukeneyo kwenza iStyrene ibe sisixhobo esifikelelekayo ngokukhuphisanayo.

Ukusulungekiswa kwePetroleum - Mfutshane kunye neSweet

• I-oyile ekrwada iyafudunyezwa kwaye ijike ibe ngumphunga.
• Umphunga oshushu unyuka unyuka kwikholamu yokwahlulahlula.
• Ikholamu ishushu ezantsi kwaye iphola ukuya phezulu.
• Njengoko umphunga ngamnye wehydrocarbon unyuka kwaye uphola ukuya kwindawo yawo yokubila uyajiya wenze ulwelo.
• Amaqhezu elulwelo (amaqela eehydrocarbons anamanqaku afanayo abilayo) avaleleke kwiitreyi kwaye akhutshwa ngemibhobho.

I-styrene ikwayi-monomer ebalulekileyo kwezi Polymers:

• Ipolystyrene
• I-EPS (iPolystyrene Eyandiswayo)
• I-SAN (i-Styrene Acrylonitrile Resins)
• SB Latex
• ABS (Acrylonitrile Butadiene Styrene Resins)
• Irabha yeSB (iStyrene-butadiene ukusukela ngo-1940's)
• I-Thermoplastic Elastomers (iirubha ze-thermoplastic)
• I-MBS (iMethacrylate Butadiene Styrene Resins)