Microbial oil decoloring technology research:
The decolorization process of microbial oils were studied.The bleaching time, bleaching temperature, adsorbent dosage and the impact on the decolorization rate.And for decoloring process is optimized by orthogonal experiment.Optimum process conditions is: the palm oil mill(http://www.palmmill.com) decoloring temperature 90 ℃, decoloring time of 25 min, adsorbent dosage was 5%, the proportion of clay and activated carbon: 1.In this condition, the decolorizing rate of 84%.
Oil bleaching is an important process in oil refining, the operation is commonly used in the bleaching tower of negative pressure will be activated clay into a oil, due to clay negative pressure into the bleaching tower, there are clay emptying losses and clay mixed with grease caused such problems as uneven oil decoloring effect of control is not good.Studied the decolorizing agent activated clay oil and grease for first premixed again into the bleaching tower oil decolorization process(http://www.palmmill.com/News/108.html) , and applied in cotton seed oil refining process, the activated clay dosage is reduced from 3% to 3%, refined oil stability control within Y35R3 color, at the same time reduce the consumption of oil refining 1%, improve enterprise economic benefits.
Application of spectrophotometer and lowe friends colorimeter measured the decoloring rate and colour and lustre of decoloring oil before and after using ultraviolet-visible spectra scanning before and after comparing the decoloring oil decoloring rate and the ability to take off the red.From the Angle of the finished product of activated clay screening test, analysis of the five different origin of activated clay quality indicators, and to investigate the influence of these indicators for oil decoloring rate.The results showed that the decoloring rate and take off the red ability has certain correlation, but not the same;Activated clay on the absorption of pigment is...