Palm Kernel Roj Refining

Palm kernel oil, tseem hu ua palm kernel oil, yog tau los ntawm cov txiv ntoo txiv ntoo. Palm kernel oil muaj ntau cov roj fatty acids qis, yog li nws cov khoom sib txawv ntawm cov txiv maj phaub roj, tab sis zoo ib yam li txiv maj phaub roj. Cov txiv maj phaub roj tshiab yog mis nyuj dawb los yog daj daj hauv cov xim, muaj cov khoom sib xws thiab muaj lub qab ntxiag walnut aroma. Palm kernel roj yog yooj yim rau oxidize thiab decompose thaum lub sij hawm cia, thiab nws saj yuav pungent. Palm kernel roj yog ib qho khoom xyaw; nws yog siv dav hauv kev lag luam khoom noj khoom haus loj hlob vim nws tus nqi qis. Nws lub siab oxidative stability thiab tsis muaj roj cholesterol thiab trans-fatty acids yog txais tos tshwj xeeb tshaj yog thaum siv los ua (saturation) kib rau nws cov txiaj ntsig kev noj qab haus huv.

1. lim

Nce qhov kub ntawm cov roj crude mus rau {{0}} degree, thiab do ntawm qhov ceev ntawm 60 r / min kom tshem tawm cov npuas npuas hauv cov roj. Ntxiv 0.1 feem pua ​​​​rau 0.2 feem pua ​​​​phosphoric acid (0.5 feem pua ​​​​muaj phosphoric acid los ntawm pawg pawg) hauv cov roj thiab do li 30 feeb.

2. Neutralize nrog alkali

Alkali refining yog ua nrog 160 degrees ntawm Baume, kua caustic soda nrog ib tug zoo ntawm 1.5 feem pua ​​ntawm cov roj zoo thiab kua caustic soda nrog ib tug roj zoo ntawm 0.5 feem pua. Ua ntej do sai (60 r / min) rau 10-15 min, ces do maj mam (27 r / min) rau 40 min.

3. Cov nag lossis daus

Neutralize thiab do maj mam rau 40 feeb, ces tsa qhov kub thiab txias mus rau 50-52 degree, txuas ntxiv do ntawm qeeb ceev li 10 feeb, nres stirring tom qab cov roj thiab xab npum sib cais, thiab tua lub indirect steam. Cia nws nyob rau li 6 teev, thiab ces cais cov roj thiab xab npum.

4. Ntxuav

Ua kom sov cov roj huv tom qab soapstock sib cais mus rau 85 degree nyob rau hauv stirring, ces ntxiv saline-alkaline dej (muaj 0.4 feem pua ​​caustic soda thiab 0.4 feem pua ​​industrial ntsev) nrog 15 feem pua ​​roj zoo thiab kub ntawm 9 0 degree . Tom qab ntxiv dej, qhov sib tov tau nres, thiab cov txheej txheem dej khib nyiab tuaj yeem tso tawm tom qab sawv ntsug li 30 feeb. Tom qab cov dej khib nyiab tas lawm, cov roj kub tseem tswj tau ntawm 35 degree, thiab tom qab ntawd txau nrog 15 feem pua ​​​​ntawm cov dej kub npau npau ( dej ntshiab ). Tsis tas li ntawd tsis txhob nplawm tom qab ntxiv dej, cia sawv ntsug rau 0.5 teev thiab tom qab ntawd tso cov txheej txheem qis ntawm cov dej khib nyiab. Yog li ntxuav 2 lossis 3 zaug.

5. Pre-bleaching

Pib lub tshuab nqus tsev twj tso kua mis kom nqus cov roj ntshiab tom qab alkali refining rau hauv lub lauj kaub ua ntej decolorization, thiab nce qhov kub ntawm 90 degrees. Qhuav thiab lub cev qhuav dej ntawm lub tshuab nqus tsev ntawm 99 kPa rau 30 min. Tom qab ntawd nqus cov av me me ntawm cov av nplaum thiab do rau 20 feeb. Tom qab ua ntej decolorization, cov roj yog txias rau 70 degree nyob rau hauv lub tshuab nqus tsev, thiab ces xa mus rau lub lim xovxwm nrog ib tug iav twj tso kua mis rau pom.

6. Decolorization

Tso cov roj ua ntej decolorized rau hauv lub lauj kaub decolorization, nce qhov kub ntawm cov roj mus rau 90 degree hauv qab lub tshuab nqus tsev siab tshaj 99 kPa (740 mm Hg), thiab nqus 100 kg ntawm acid av nplaum thiab 60 kg ntawm cov av nplaum (raws li 6. t roj)), thiab txuas ntxiv stirring rau 10 min. Tom qab decolorization, cov roj yog txias rau 70 degree nyob rau hauv lub tshuab nqus tsev, thiab tseem xa mus rau lub lim xovxwm los ntawm lub iav twj tso kua mis rau pom.

7. Deodorization

Pib lub tshuab nqus tsev twj kom nqus cov roj decolorized rau hauv lub lauj kaub deodorizing. Thaum lub qhov hluav taws xob tsis ncaj ua kom sov cov roj mus rau 90-100 degree, pib txau cov pa ncaj qha, thiab thaum cov roj kub nce mus txog 185 degree, pib nqus nrog peb-theem chav dav hlau twj tso kua mis kom tswj tau qhov seem seem ntawm {{3} } Pa, thiab cov roj kub tseem yog 185 degree, deodorize li 5 h. Tom qab deodorization, cov roj yog txias rau 30 degree nyob rau hauv lub tshuab nqus tsev, thiab cov roj refined yog tau tom qab lim.

Cim npe nrov: xibtes kernel roj refining, Tuam Tshoj, manufacturers, lwm tus neeg, Hoobkas, yuav, pheej yig