Shirkadeenawaxay iskaashi la samaysaa Jaamacadda Sayniska iyo Tignoolajiyada ee Bariga Shiinaha, waxayna marka hore aqbashaa falcelinta joogtada ah ee kiliyaha iyo habka nadiifinta joogtada ah ee soo saaristaKhamriga Furfuryl.Gebi ahaanba waxay xaqiiqsadeen falcelinta heerkulka hooseeya iyo hawlgalka fog ee tooska ah, samaynta tayada mid xasilan oo wax soo saarkeedu hooseeyo.Waxaan leenahay silsilad wax soo saar oo dhamaystiran oo loogu talagalay qalabka tuurista, waxaanan horumar weyn ka samaynay farsamada iyo noocyada alaabta.Badeecooyin gaar ah oo la dalbado ayaa sidoo kale la heli karaa sida ku cad codsiga macaamiisha.Waxaan leenahay kooxo xirfadleyaal ah oo ku raaxaysanaya sumcad wanaagsan xagga warshadaha wax soo saarka, cilmi-baarista iyo adeegga, kuwaas oo xallin kara dhibaatooyinkaaga wax tuurista waqtigeeda.
Sanadkii 1931 kii, farmashiistaha Mareykanka Adskins waxa uu xaqiiqsaday hydrogenation of furfural si alkolada furfuryl markii ugu horeysay oo leh naxaas chromic acid sida kicinta, waxaana uu ogaaday in wax soo saarku inta badan ahaa wax soo saarka hydrogenation qoto dheer ee giraanta furfuran iyo aldehyde, iyo xulashada badeecada waxaa lagu wanaajin karaa iyadoo la beddelo heerkulka falcelinta iyo xaaladaha falcelinta catalytic.Marka loo eego xaaladaha falcelinta ee kala duwan, habka furfural hydrogenation to furfuryl alkohol waxaa loo qaybin karaa habka wajiga dareeraha iyo habka gaaska, kaas oo loo qaybin karo habka cadaadiska sare (9.8MPa) iyo habka cadaadiska dhexdhexaadka ah (5 ~ 8MPa).
hydrogenation wajiga dareere
Heerarka wajiga dareeraha ah waa in la joojiyo kicinta ee furfural at 180 ~ 210 ℃, cadaadis dhexdhexaad ah ama hydrogenation cadaadis sare, qalabku waa fal-celin munaarad madhan.Si loo yareeyo culeyska kulaylka, heerka isugeynta ee furfuralka ayaa inta badan la xakameeyey oo waqtiga falcelinta (ka weyn 1h) ayaa la dheereeyey.Sababtoo ah dib-u-isku-dhafka walxaha, fal-celinta hydrogenation kuma sii jiri karto tallaabada jiilka alkolada furfuryl, waxayna sii kordhin kartaa wax soo saarka sida 22 methylfurfuran iyo aalkolada tetrahydrofurfuran, taas oo keenta isticmaalka alaabta ceeriin ee sarreeya, oo ay adag tahay in la soo celiyo qashinka qashinka, si sahlan loo helo. keena wasakhowga chromium halis ah.Intaa waxaa dheer, habka wajiga dareeraha wuxuu u baahan yahay in lagu shaqeeyo cadaadis, kaas oo u baahan shuruudaha qalabka sare.Waqtigan xaadirka ah, habkan ayaa inta badan laga isticmaalaa waddankeena.Cadaadiska falcelinta sare waa cilladda ugu weyn ee habka dareeraha-wajiga.Si kastaba ha noqotee, wax soo saarka khamriga furfuryl ee falcelinta dareeraha-wajiga cadaadiska hooseeya (1 ~ 1.3MPa) ayaa laga soo sheegay Shiinaha, wax-soo-saar sare ayaa la helay.
Sida mid ka mid ah alaabta ceeriin ee isku-dhafka dabiiciga ah, waxaa loo isticmaali karaa in lagu soo saaro levulinic acid, resin furan oo leh sifooyin kala duwan, furfuryl alkohol-urea resin iyo resin phenolic.Caabbinta qabow ee balaastikada laga sameeyay ayaa ka fiican kan Butanol iyo Octanol esters.Waxa kale oo ay dareere wanaagsan u tahay xabagta furan, varnishes, iyo pigments, iyo shidaalka gantaallada.Intaa waxaa dheer, waxaa sidoo kale loo isticmaalaa fiilooyinka synthetic, caag, sunta cayayaanka iyo warshadaha dhirta.
Waqtiga boostada: Meey-18-2023