FurfraturyL Cow Cawv Ntau Lawm Tshuab

Peb lub tuam txhabKev koom tes nrog East Tuam Tshoj University of Science thiab Technology, thiab ua ntej kev txhawb nqa txuas ntxiv hauv cov txheej txheem thiab txuas ntxiv cov txheej txheem distillation rau kev tsim covKev haus dej cawv plaub hauCov. Tag nrho cov tshuaj tiv thaiv kev tiv thaiv ntawm qhov kub tsawg thiab tsis siv neeg ua haujlwm tsis zoo, ua kom cov khoom sib txawv ruaj khov thiab muaj nqi ntau lawm. Peb muaj cov khoom txua zoo rau cov khoom siv casting, thiab ua tiav kev nce qib hauv cov txheej txheem thiab ntau yam khoom. Cov khoom tshwj xeeb tau los xaj yog kuj muaj raws li kev thov los ntawm cov neeg siv khoom. Peb muaj cov kws tshaj lij kev lom zem txaus siab lub koob npe zoo hauv kev lag luam rau kev tsim khoom, kev tshawb nrhiav thiab kev pabcuam, uas yuav daws koj cov teeb meem pov tseg.

Xyoo 1931, Miskas Chemist Adskins paub txog hydrogenation ntawm furfrylam cawv ntawm furfuran nplhaib thiab aldehyde pab pawg, thiab kev xaiv tau ntawm Cov khoom yuav tau txhim kho los ntawm kev hloov cov tshuaj tiv thaiv kub thiab catalytic cov kev tshwm sim. Raws li cov tshuaj tiv thaiv sib txawv, cov txheej txheem ntawm furfural hydrogenation rau cov txheej txheem furfuryL tuaj yeem faib ua cov txheej txheem theem siab (9.8MPA) thiab nruab nrab ntawm cov txheej txheem (5 ~ 8MPA).

Ua kua theem hydrogenation

Kua Txheej Txheem yog kom ncua cov catalyst nyob rau hauv furfural ntawm 180 ~ 210 ℃, nruab nrab siab lossis siab dua ntau tus reactor. Txhawm rau kom txo cov cua sov, ntxiv tus nqi ntawm cov plaub ntug yog feem ntau tswj thiab lub sijhawm tiv thaiv (ntau dua 1h) tau ntev. Vim yog cov zaub mov tom qab, hydrogenation cov tshuaj tsis tuaj yeem nyob hauv cov khoom noj cawv, thiab tuaj yeem ua kom cov raw khoom noj cawv, thiab tuaj yeem ua kom rov qab cov khoom siv khib nyiab ntau, thiab nyuaj kom rov qab ua pov tseg catalyst, yooj yim rau ua rau muaj kuab lom chromium loj heev. Ib qho ntxiv, theem ua kua cov qauv yuav tsum tau ua haujlwm nyob rau hauv siab, uas yuav tsum muaj cov cuab yeej xav tau ntau dua. Ntawm tam sim no, cov qauv no tsuas yog siv nyob rau hauv peb lub tebchaws. Kev tiv thaiv siab siab yog lub ntsiab lus tseem ceeb ntawm cov qauv ua kua. Txawm li cas los xij, kev tsim cov plururyL cawv los ntawm cov tshuaj lom neeg ua kua-theem nyob rau hauv cov nyiaj siab qis (1 ~ 1.3mpa) tau tshaj tawm hauv Suav teb, thiab siab tau tawm los tau.

Raws li ib qho ntawm cov ntaub ntawv raw rau cov synthic synthesis, nws tuaj yeem siv los ua cov khoom siv roj ntsha uas muaj ntau yam khoom, plob ntawm cov dej cawv thiab cov dej phenian. Cov khaub noom txias ua haujlwm ntawm cov tshuab roj hmab ua los ntawm nws yog qhov zoo dua li ntawm butanol thiab octanol esters. Nws kuj yog cov kuab tshuaj zoo rau Furan resins, varsnishes, thiab pigments, thiab rocket roj. Tsis tas li ntawd, nws tseem siv nyob rau hauv hluavtaws fibers, roj hmab, tshuaj tua tshuaj tua kab thiab muaj kev lag luam.