Why is the requirement of temperature in every steps of edible oil refining process different?
Because every step of edible oil refining process has its own function, the requirement of temperature in every step of edible oil refining process is very strict. Usually, the temperature of every step is decided by engineers when designing.
Every step of edible oil refining process has different requirements of temperature
In the whole edible oil refining process, the requirement of temperature is not less than 60 degree. And all the edible oil refining process is heated by heat conductive oil. Before refining process starting, the heat conductive oil need to be increased to 85℃ firstly, and then in degumming, deacidification, decolorization and deodorization process, the crude oil will be heated into different temperature based on the requirement of refining process.
|Step in edible oil refining process||The requirement of temperature||Method||Function|
|Degumming process||65~75℃||Add hot water||Remove gums|
|Deacidification process||85℃||Add NaOH solution||Remove “acid impurites”|
|Decolorization process||105℃||Add white clay||Remove pigments|
|Deodorization process||260℃||Use high temperature steam||Remove odors|
But more remarkable, using higher temperature can reduce the deodorization time. According to Doing Company engineer, in the range of deodorization temperature, increasing of every 17℃, dedorization time will reduce half. But the temperature can not be over high, or it will produce harmful substances.
Reading here, do you understand why the requirement of temperature in every steps of edible oil refining process is different? If you want to set up an edible oil refinery plant, but don't know the edible oil refining process, contact us directly. Doing Company engineers will design the edible oil refining process flow chart for you, and we can provide you factory price edible oil refining machine because we are manufacturer.
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