Oil decoloring process and mechanism of research:
Oil system in the chemical and physical properties of trace elements, the composition and structure of the adsorbent and decoloring operating environment conditions will affect the decoloring process and the quality of the product.In palm oil plant (http://www.palmmill.com) in the process of research on decoloring of trace components in a variety of change law on the basis of systematically studied decolorization adsorption thermodynamics, and on the decolorization adsorption kinetics were studied.(1) need the trace elements in the decoloring oil (chlorophyll, carotene, phospholipids, free fatty acids, primary and secondary oxidation products of oxidation products) in the process of decolorization and adsorbent adsorption and catalysis of hair, there is a balance relationship between different components on the adsorbent adsorption and catalytic properties of study of adsorption mechanism research important premise and foundation.The results showed that the decoloring time 30 min, adsorbent for heavy oil 1%, decoloring under the condition of temperature 110 ℃, adsorbent for pigment as the main body of the adsorption of trace element effect is best.This condition also can ensure decoloring oil oxidation and decomposition degree maintain at a lower level.(2) oil decoloring system to adsorption of pigment class material belongs to solid-liquid adsorption process of dilute solution system.This kernel recycle station (http://www.palmmill.com/Products/prod/) show that the pigment class material in the experiment on the adsorbent adsorption isotherm. "L" type, this type of adsorption isotherm indicates that three esters in adsorbent do not have a strong competitive adsorption on the surface, the polarity of the adsorbent and pigment material more close.This research part experiment will also be different adsorbent adsorption isotherm within the scope of low concentration degree with the Freundlich equation fitting,...