Popular in Africa oil refining process
1.Why does the crude oil need the refinery process?
The crude oil( vegetable oil, such as sunflower seed oil, tea seed oil, groundnut oil,
cottonseed oil, rice bran oil, soybean oil, corn oil and palm oil ) have impurities of
oil, such as, fatty acid, phosphatide, metal ion, pigment, oxide, solid particle and
volatile gas,which will affect the oil colour ,smell ect. So it must need to remove
those impurities,then you can get the standard oil.
2.What is the refinery process?
a.Refining section: used to P-acid de-gumming, alkali refining de-acid and water rinsing.
b.Decoloring section: used to remove off pigments, bleaching oils and grease dehydrate,
make the oil lucency
c.Deodorizing section: to remove off the odor components in oil, let the oil have a good smell.
d.Dewaxing section(only for rice bran ,sunflower,cottonseed oil): used to remove off the wax
in the oil, in order to get the high quality oil.
e.Fractionation section(only for palm oil ):used to get different melting point's palm oil product,
like 8 ℃,10 ℃,14 ℃,18 ℃,24℃,33℃,44 ℃,55 ℃ ect.
3.How does the refinery plant work ?
4.What is the Grade of the refined oil do you want ?
| Item | Quality index | ||||
| 1st grade | 2nd grade | 3rd grade | 4th grade | ||
| Moisture & Volatile matter/ % | 0.05 | 0.05 | 0.1 | 0.2 | |
| Impurities /% ≤ | 0.05 | 0.05 | 0.05 | 0.05 | |
| Acid value(KOH)(mg/g) ≤ | 0.2 | 0.3 | 1 | 1 | |
| Peroxide value/(mmol/kg) ≤ | 5 | 5 | 7.5 | 7.5 | |
| Test tempeature (280°C) | _ | _ | No educt,Lovibond Tintometer: Yellow value not changed,red value increasing | Trace of educt,Lovibond Tintometer: Yellow value not changed,red value increasing | |
| Saponified matter content / % ≤ | _ | _ | 0.03 | 0.03 | |
| Smoke poin°C ≥ | 215 | 205 | _ | _ | |
| Freezing test (0°C Storing 5.5hrs) | Transparent | _ | _ | _ | |
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