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 yopangaMowa wa Furfuryl. 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 monga mwa 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, American katswiri wamankhwala Adskins anazindikira hydrogenation wa furfural kuti furfuryl mowa kwa nthawi yoyamba ndi mkuwa chromic asidi monga chothandizira, ndipo anapeza kuti ndi mankhwala anali makamaka mankhwala a kwambiri hydrogenation wa furfuran mphete ndi aldehyde gulu, ndi selectivity wa mankhwala akhoza kukhala bwino ndi kusintha zinthu catalytic kutentha. 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 sangakhale mu sitepe ya furfuryl mowa m'badwo, ndipo akhoza zina kupanga byproducts monga 22 methylfurfuran ndi tetrahydrofurfuran mowa, amene amatsogolera kumwa mkulu zopangira, ndi zovuta kuti achire zinyalala chothandizira, zosavuta chifukwa kwambiri chromium kuipitsa. Kuphatikiza apo, njira yamadzimadzi yamadzimadzi iyenera kugwiritsidwa ntchito mopanikizika, zomwe zimafunikira zida zapamwamba. Pakali pano, njirayi imagwiritsidwa ntchito kwambiri m'dziko lathu. High anachita kuthamanga ndiye chachikulu kulephera kwa 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, ingagwiritsidwe ntchito kupanga levulinic acid, furan resin 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.