Tekinoloje yopanga mowa wa Furfuryl

Kampani yathuimagwirizana ndi East China University of Science and Technology, ndipo choyamba imagwiritsa ntchito kachitidwe kosalekeza mu ketulo ndi njira yopitilira distillation yopangaFurfuryl mowa. Anazindikira kwathunthu zomwe zimachitika pa kutentha kochepa komanso kugwira ntchito kwakutali, zomwe zimapangitsa kuti khalidweli likhale lokhazikika komanso mtengo wake ukhale wotsika. Tili ndi unyolo wazinthu zopangira zida zoponyera, ndipo tidapita patsogolo kwambiri paukadaulo ndi mitundu yazogulitsa. Zapadera zopangidwa kuyitanitsa zimapezekanso malinga ndi pempho la makasitomala. Tili ndi magulu a akatswiri omwe ali ndi mbiri yabwino pantchito yopanga, kufufuza ndi ntchito, omwe amatha kuthana ndi mavuto anu otaya nthawi yake.

Mu 1931, katswiri wa zamankhwala wa ku America Adskins anazindikira kuti hydrogenation ya furfural kwa furfuryl mowa kwa nthawi yoyamba ndi mkuwa wa chromic acid monga chothandizira, ndipo anapeza kuti mankhwalawo anali makamaka opangidwa ndi hydrogenation yakuya ya furfural mphete ndi aldehyde gulu, ndi kusankha kwa mankhwala akhoza kukhala bwino ndi kusintha anachita kutentha ndi zinthu chothandizira anachita. Malinga ndi zinthu zosiyanasiyana anachita, ndondomeko ya furfural hydrogenation kuti furfuryl mowa akhoza kugawidwa mu madzi gawo njira ndi mpweya gawo njira, amene akhoza kugawidwa mu mkulu kuthamanga njira (9.8MPa) ndi sing'anga kuthamanga njira (5 ~ 8MPa).

madzi gawo hydrogenation

Zamadzimadzi gawo hydrogenation ndi kuyimitsa chothandizira mu furfural pa 180 ~ 210 ℃, sing'anga kuthamanga kapena kuthamanga kwambiri hydrogenation, chipangizo ndi chopanda nsanja riyakitala. Pofuna kuchepetsa kutentha, kuchuluka kwa furfural nthawi zambiri kumayendetsedwa ndipo nthawi yochitira (kuposa 1h) inkatalikitsidwa. Chifukwa cha backmixing wa zipangizo, hydrogenation anachita sangathe kukhala mu sitepe ya furfuryl mowa m'badwo, ndipo akhoza zina kupanga byproducts monga 22 methylfurfuran ndi tetrahydrofurfuran mowa, kumabweretsa mowa mkulu yaiwisi, ndi zovuta kuti achire zinyalala chothandizira, zosavuta kuwononga kwambiri chromium. Kuphatikiza apo, njira yamadzimadzi yamadzimadzi iyenera kugwiritsidwa ntchito mopanikizika, zomwe zimafunikira zida zapamwamba. Pakali pano, njirayi imagwiritsidwa ntchito kwambiri m'dziko lathu. Mkulu anachita kuthamanga ndiye cholephera chachikulu cha madzi gawo njira. Komabe, ku China kupangidwa kwa mowa wa furfuryl potengera gawo lamadzimadzi (1 ~ 1.3MPa), ndipo zokolola zambiri zapezedwa.

Monga imodzi mwazinthu zopangira organic synthesis, zitha kugwiritsidwa ntchito kupanga levulinic acid, resin ya furan yokhala ndi zinthu zosiyanasiyana, furfuryl alcohol-urea resin ndi phenolic resin. Kuzizira kozizira kwa mapulasitiki opangidwa kuchokera pamenepo ndikwabwino kuposa a Butanol ndi Octanol esters. Ndi zosungunulira zabwino za furan resins, vanishi, pigment, ndi mafuta a rocket. Kuphatikiza apo, imagwiritsidwanso ntchito m'mafakitale opangira mphira, mphira, mankhwala ophera tizilombo ndi mafakitale oyambira.