Coconut Oil Refining Line

Coconut Oil Refining Line

Beucase of small gums content in the coconut oil,usually adopts the distillation refinery process for coconut oil refinery(something like the palm kernel oil).The coconut oil continuous refining line is with high production automation and can achieve good quality of finished oil. It is also suitable for processing different oils such as soybean oil, rapeseed oil and cottonseed oil with a daily processing capacity of over 100 tons.

Full continuous refining equipment

Avocado oil, coconut oil, palm oil, etc., because of the different processing methods of raw materials, the hair oil usually has a higher acid value, and it is easy to use molecular distillation deacidification combined with intermittent degumming to carry out refining. The core of its degumming and distillation deacidification process. Distillation equipment has packed towers, plate towers and combination towers to choose from. The main steps of semi-continuous refining are (1) hydration degumming (2) vacuum decolorization (3) distillation deacidification and deodorization.

1. Degumming : The oil first filters the impurities. After preheating, it enters the mixer and is added with phosphoric acid to enter the acid-smelting mixing tank. After being retained in the holding tank, the oil is separated by a centrifuge. After heating, the oil enters the water-washing centrifugal mixer. Wash with hot water, then enter the dewatering centrifuge to separate residual soap and water. The main equipment is centrifuge and mixer.

2. Decolorization : The degummed oil first enters the heater and is heated to the appropriate temperature (110 ° C) to enter the white clay mixing tank. The white clay is transported by the low-level white earth box through the wind to the white soil temporary storage tank, and the white soil is added for automatic metering and interlocked with the oil inlet. The oil is mixed with the white clay and overflows to the continuous decolorizer. The bleacher uses unpowered steam agitation. The decolored oil is filtered into two alternate vane filters. After the filtered oil passes through the safety filter, it enters the decolorizing oil storage tank, and the decolorizing oil stores the decolorizing oil to contact with the air to affect its peroxide value and color return. The main equipment is a decolorizer and a filter.

3. Deacidification and deodorization : Qualified decolorizing oil enters the spiral plate heat exchanger to recover most of the heat and then enters the high pressure steam heater to the process temperature (240-260 ° C) and then enters the deodorization tower. The deodorization tower is a combined type, the upper layer structured packing is mainly used for removing odor components such as free fatty acids, and the lower layer is a plate type tower, which mainly plays the role of thermal decolorization, and takes the peroxide value in the oil to zero. The oil from the deodorization tower is absorbed by the heat exchanger to absorb most of the heat and then further heated with the oil, then cooled to 80-85 ° C by a cooler, added with the desired antioxidant and flavor, and then cooled to below 50 ° C for storage. Volatile substances such as fatty acids deodorized are collected by a packed trap, and the trap is a low temperature (60-75 ° C) free fatty acid. When the level of the fatty acid temporary storage tank is high, it is sent to the fatty acid storage tank for storage. The main equipment is deacidification and deodorization tower, fatty acid capture tower, heat exchanger, shielding pump, etc.