Tsarin danyen maimai demulsifiersya dogara ne akan ka'idar jujjuyawar lokaci. Bayan ƙara demulsifier, jujjuyawar lokaci takan faru, yana haifar da surfactants waɗanda ke haifar da kishiyar emulsion nau'in zuwa wanda emulsifier ya kafa (reverse demulsifier). Wadannan demulsifiers suna yin hulɗa tare da emulsifiers na hydrophobic don samar da hadaddun, ta haka ne ke kawar da kaddarorin emulsifying. Wata hanyar ita ce fashewar fim ɗin ta fuskar fuska ta hanyar karo. Ƙarƙashin dumama ko tashin hankali, masu lalata abubuwa akai-akai suna yin karo tare da fim ɗin tsaka-tsakin fuska na emulsion-ko dai suna tallata shi ko kuma tarwatsa wasu kwayoyin halitta-wanda ke lalata fim ɗin, yana haifar da flocculation, coalescence, da kuma lalatawar ƙarshe.
Emulsion danyen mai yakan faru a lokacin samar da mai da tacewa. Mafi yawan danyen man da ake samu a duniya ana samar da shi ne ta hanyar kwaikwaya. Emulsion ya ƙunshi aƙalla ruwaye marasa ƙarfi guda biyu, inda aka tarwatsa ɗayan a matsayin ɗigon ɗigo masu kyau (kimanin 1 mm a diamita) an dakatar da su a ɗayan.
Yawanci, daya daga cikin wadannan ruwayen ruwa ne, dayan kuma mai. Ana iya tarwatsa mai da kyau a cikin ruwa, ƙirƙirar emulsion mai-in-ruwa (O/W), inda ruwa shine ci gaba da lokaci kuma mai shine lokacin tarwatsewa. Sabanin haka, idan mai shine ci gaba mai gudana kuma ruwa ya tarwatse, yana haifar da emulsion na ruwa-in-man (W/O). Yawancin emulsion na ɗanyen mai suna cikin nau'in ƙarshen.
A cikin 'yan shekarun nan, bincike kan hanyoyin kawar da danyen mai ya mayar da hankali kan cikakkun bayanai game da haɗin gwiwar ɗigon ruwa da kuma tasirin demulsifiers akan rheology tsakanin fuska. Duk da haka, saboda daɗaɗɗen hulɗar demulsifier-emulsion, duk da bincike mai zurfi, har yanzu babu wata ƙa'idar da aka haɗa akan tsarin lalata.
Hanyoyi da yawa da aka yarda da su sun haɗa da:
1.Molecule displacement: Demulsifier kwayoyin maye maye gurbin emulsifiers a dubawa, destabilizing da emulsion.
2.Wrinkle nakasawa: Nazarin microscopic ya nuna W / O emulsions suna da nau'i biyu ko mahara na ruwa da aka raba ta zoben mai. Ƙarƙashin dumama, tashin hankali, da aikin lalata, waɗannan yadudduka suna haɗuwa, suna haifar da haɗuwar digo.
Bugu da ƙari, bincike na cikin gida akan tsarin emulsion na O/W yana nuna cewa dole ne ingantacciyar na'ura mai kashe wuta ta cika ma'auni masu zuwa: aiki mai ƙarfi na saman ƙasa, kyakkyawan jika, isassun ƙarfin ɗigon ruwa, da ingantaccen aikin haɗin gwiwa.
Demulsifiers za a iya rarraba bisa ga nau'ikan surfactant:
•Anionic demulsifiers: sun haɗa da carboxylates, sulfonates, da polyoxyethylene fatty sulfates. Ba su da tasiri, suna buƙatar manyan allurai, kuma suna kula da electrolytes.
•Cationic demulsifiers: Galibin gishirin ammonium quaternary, mai tasiri ga mai haske amma bai dace da mai mai nauyi ko tsufa ba.
•Nonionic demulsifiers: Haɗa toshe polyethers farawa ta amines ko alcohols, alkylphenol resin block polyethers, phenol-amine guduro block polyethers, silicone-based demulsifiers, matsananci-high kwayoyin nauyi demulsifiers, polyphosphates, modified block polyethers, da kuma imifififififidar tushen demuls. demulsifiers).
Lokacin aikawa: Agusta-22-2025