Kutembenuka kwa propylene kukhala propylene oxide ndi njira yovuta yomwe imafuna kumvetsetsa bwino za kayendedwe ka mankhwala okhudzidwa. Nkhaniyi ikufotokoza njira zosiyanasiyana zomwe zimafunikira pakupangira propylene oxide kuchokera ku propylene.

Epoxy propane tanki yosungirako 

Njira yodziwika kwambiri yopangira propylene oxide ndi kudzera mu okosijeni wa propylene ndi mpweya wa maselo pamaso pa chothandizira. Zomwe zimapangidwira zimaphatikizapo mapangidwe a peroxy radicals, omwe amachitira ndi propylene kuti apange propylene oxide. Chothandizira chimagwira ntchito yofunika kwambiri pakuchita izi, chifukwa chimachepetsa mphamvu yotsegulira yomwe imafunikira kuti pakhale ma peroxy radicals, potero kumawonjezera momwe amachitira.

 

Chimodzi mwazinthu zomwe zimagwiritsidwa ntchito kwambiri pakuchita izi ndi silver oxide, yomwe imayikidwa pazithandizo monga alpha-alumina. Zida zothandizira zimapereka malo okwera pamwamba pa chothandizira, kuonetsetsa kuti kugwirizana bwino pakati pa zowonongeka ndi zowonongeka. Kugwiritsiridwa ntchito kwa silver oxide catalysts kwapezeka kuti kumabweretsa zokolola zambiri za propylene oxide.

 

Kutsekemera kwa propylene pogwiritsa ntchito peroxide ndi njira ina yomwe ingagwiritsidwe ntchito popanga propylene oxide. Pochita izi, propylene imachitidwa ndi organic peroxide pamaso pa chothandizira. Peroxide imakumana ndi propylene kupanga chinthu chapakati cha free radical, chomwe chimawola kuti chitulutse propylene oxide ndi mowa. Njirayi ili ndi ubwino wopereka kusankha kwapamwamba kwa propylene oxide poyerekeza ndi ndondomeko ya okosijeni.

 

Kusankha momwe zinthu zimachitikira ndizofunikiranso pakuzindikira zokolola ndi chiyero cha mankhwala a propylene oxide. Kutentha, kupanikizika, nthawi yokhalamo, ndi chiŵerengero cha mamolekyu a ma reactants ndi zina mwazofunikira zomwe ziyenera kukonzedwa. Zawonedwa kuti kuonjezera kutentha ndi nthawi yokhalamo nthawi zambiri kumabweretsa kuwonjezeka kwa zokolola za propylene oxide. Komabe, kutentha kwapamwamba kungayambitsenso kupanga zopangira, kuchepetsa chiyero cha chinthu chomwe mukufuna. Chifukwa chake, kulinganiza pakati pa zokolola zambiri ndi kuyera kwakukulu kuyenera kuchitika.

 

Pomaliza, kaphatikizidwe wa propylene oxide kuchokera ku propylene ukhoza kutheka kudzera m'njira zosiyanasiyana, kuphatikiza makutidwe ndi okosijeni ndi ma cell oxygen kapena peroxide. Kusankha chothandizira ndi momwe zinthu zimachitikira zimagwira ntchito yofunika kwambiri pakuzindikira zokolola ndi kuyera kwa chinthu chomaliza. Kumvetsetsa bwino momwe zimagwirira ntchito ndikofunikira pakuwongolera njirayo komanso kupeza propylene oxide yapamwamba kwambiri.


Nthawi yotumiza: Mar-18-2024