The whole rice bran oil extraction process contains three steps: rice bran pretreatment & pre-pressing process, rice bran oil solvent extraction process, and rice bran oil refining&dewaxing process. The following steps are the detailed information about rice bran oil extraction process. Next, I will explain each step in turn.
Rice bran pretreatment & pre-pressing process:
Rice bran oil pretreatment process and machines used
Rice bran pretreatment & pre-pressing is a very important section in rice bran oil extraction process before solvent extraction plant. It will directly affect extraction oil effect.
Rice bran oil pre-press machine
Surely, in rice bran oil extraction process, there are some practical skills to improve oil extraction rate when using screw oil press. So, how to increase the oil yield by our rice bran oil extraction machine? Now, we will tell the six tips in actual conditions.
|Clean and remove the impurities from the raw material|
|Oil seeds suitable for heating press should be cooked before extraction|
|Control the humidity of raw material|
|Control the temperature of screw oil press, avoiding too high temperature|
|Select good quality of the oil seeds|
|Ensure the high quality of oil extraction machine|
Rice bran oil solvent extraction process
extraction → mixed oil → evaporation→ steam-stripping → crude rice bran oil
Three types of rice bran oil extractor
Use organic solvent through soaking or spraying contact methods to extract oil from oilseeds in rice bran oil extraction process.
Advantages of rice bran oil extraction craft:
|1.High oil yield, low residual oil in meal;|
|2.Low labor intensity;|
|3.Good working environment;|
|4.Good meal quality.|
Negative pressure evaporation helps to improve crude oil quality.
Rice bran oil refining&dewaxing process
Rice bran oil refining process
oil refining is according to the different usage and requirements, utilizing the physical methods and chemical processes to get rid of the harmful impurities and needless substance in the crude oil, getting standard oil. In rice bran oil extraction process, rice bran oil refining plant includes rice bran oil refining machine and rice bran oil dewaxing machine.
Advantages of refining craft:
1. After refining the impurity of oil must be less than 0.2% ;
2.Recycling system save power and money;
3.Lower oil waste.
Rice bran oil refining process details:
1.Continuous alkali refining shortens contact time between oil and lye,reduces grease saponification,lowers refining consumption,and improves efficiency.
2.Decolorization adopts technology of combining premixing and steam mixing bleaching,which improves bleaching efficiency,saves consumption of bleaching clay,and it's simple and convenient to operate;and negative pressure state avoids oxygen in the air from contacting with hot oil,thereby ensuring oil product quality,inhibiting acid value to rise again,and lowering peroxide value.
3.Deodorization adopts new type continuous deodorization equipment which is applicable for deacidification and deodorization of plant oil with high acid value and low-resin content,the actual production proves its most obvious advantages are strong deacidification ability,excellent hot bleaching effect,high refining rate,good oil quality and so on.
4.The process has multiple heat exchange,which makes full use of the heat energy system,effectively reduces steam consumption,and also has the advantages of adjustable production process,flexible operation,high automatic degree,environment sanitation and so on.
Note: learn more about conventional dewaxing processes and operations
Above is the rice bran oil extraction process. We are one of the leading Manufacturers and Suppliers of mini rice bran oil mill plant. We manufacture edible oil making machine using new technology, we have many kinds of edible oil machine for you reference, can meet your different requirement in oil production factory. Please feel free to contact us.