Inkampani yethuibambisana ne-East China University of Science and Technology, futhi okokuqala isebenzisa ukusabela okuqhubekayo eketela kanye nenqubo eqhubekayo yokukhishwa kwe-distillation ukuze kukhiqizweI-Furfuryl utshwala. Ukuqaphela ngokuphelele ukusabela ezingeni lokushisa eliphansi kanye nokusebenza okuzenzakalelayo okukude, okwenza ikhwalithi izinze kakhulu nezindleko zokukhiqiza zehle. Sinochungechunge lomkhiqizo olubanzi lwezinto zokusakaza, futhi senze inqubekelaphambili enkulu kumasu kanye nezinhlobonhlobo zomkhiqizo. Imikhiqizo ekhethekile eyenziwe ukuze ku-odwe iyatholakala futhi ngokwesicelo esivela kumakhasimende. Sinamaqembu ochwepheshe ajabulela idumela elihle embonini yokukhiqiza, ucwaningo kanye nesevisi, angaxazulula izinkinga zakho zokusakaza ngesikhathi.
Ngo-1931, usokhemisi waseMelika u-Adskins waqaphela i-hydrogenation ye-furfural kuya ku-furfuryl utshwala okokuqala ngqa nge-copper chromic acid njenge-catalyst, futhi wathola ukuthi umkhiqizo ngokuyinhloko wawuwumkhiqizo we-hydrogenation ejulile ye-furfural ring neqembu le-aldehyde, kanye nokukhethwa kwe umkhiqizo ungathuthukiswa ngokushintsha izinga lokushisa lokusabela kanye nezimo zokusabela ze-catalytic. Ngokwezimo ezihlukene zokusabela, inqubo ye-furfural hydrogenation to furfuryl alcohol ingahlukaniswa ibe indlela yesigaba se-liquid kanye nendlela yesigaba segesi, engahlukaniswa ngendlela yokucindezela okuphezulu (9.8MPa) kanye nendlela yokucindezela okuphakathi (5 ~ 8MPa).
i-liquid phase hydrogenation
I-Liquid phase hydrogenation iwukumisa i-catalyst in furfural at 180 ~ 210℃, ingcindezi ephakathi nendawo noma i-high pressure hydrogenation, idivayisi iyi-reactor engenalutho yombhoshongo. Ukuze kuncishiswe umthwalo wokushisa, izinga lokungezwa le-furfural lalivame ukulawulwa futhi isikhathi sokusabela (esikhulu kune-1h) sandiswa. Ngenxa yokuhlanganiswa kwezinto zokwakha, ukusabela kwe-hydrogenation akukwazi ukuhlala esinyathelweni se-furfuryl alcohol generation, futhi kungaqhubeka nokukhiqiza imikhiqizo efana ne-22 methylfurfuran kanye ne-tetrahydrofurfuran utshwala, okuholela ekusetshenzisweni okuphezulu kwempahla eluhlaza, futhi kunzima ukubuyisela imfucuza i-catalyst, kulula ukuyisebenzisa. bangela ukungcoliswa okukhulu kwe-chromium. Ngaphezu kwalokho, indlela yesigaba se-liquid idinga ukusebenza ngaphansi kwengcindezi, edinga izidingo eziphezulu zemishini. Njengamanje, le ndlela isetshenziswa kakhulu ezweni lakithi. Ukucindezela okuphezulu kokusabela kuwukushiyeka okukhulu kwendlela yesigaba se-liquid. Nokho, ukukhiqizwa kotshwala be-furfuryl ngokusabela kwesigaba se-liquid ngaphansi kwengcindezi ephansi (1 ~ 1.3MPa) kubikwe e-China, futhi kutholwe isivuno esikhulu.
Njengenye yezinto zokusetshenziswa kwe-organic synthesis, ingasetshenziswa ukukhiqiza i-levulinic acid, i-furan resin enezakhiwo ezihlukahlukene, i-furfuryl alcohol-urea resin kanye ne-phenolic resin. Ukumelana okubandayo kwama-plasticizers enziwe kuwo kungcono kune-Butanol ne-Octanol esters. Iphinde ibe yizincibilikisi ezinhle zama-furan resins, ama-varnish, nama-pigments, namafutha e-rocket. Ngaphezu kwalokho, ibuye isetshenziswe emiculweni yokwenziwa, irabha, izibulala-zinambuzane kanye nezimboni ze-Foundry.
Isikhathi sokuthumela: May-18-2023