In palm oil mill plant, there are mainly six steps to make palm oil. The first three steps focus on the palm bunches, including reception, sterilization and threshing. Then, we will get the palm fruits to be sent to the next section and empty bunches to be burned as fuels. In the following two steps, we will mainly deal with palm fruits, including digesting and pressing. After that, we will get the crude palm oil to enter the next section and the mixture of fiber and nuts to be recycled to further make palm kernel oil. Crude palm oil has too many impurities to be ate directly, so we need the following step --- clarification and drying. Finally, we can get clear palm oil to be sold or further refined.
Palm oil making process
The detailed process of involved in making palm oil in palm oil mill plant is as follows.
1.The first step is to receive palm bunches.
In order to make high-quality palm oil, we have to use fresh palm bunches, so we should try our best to shorten the transportation time. It would be better if we sterilize the palm bunches in 48 hours after being picked. Once we picked the palm bunches, we should transported them to the plant by trucks as soon as possible. After being weighed by weighbridge, they will be downloaded to the discharge platform.
Reception of palm bunches
2.The second step is to sterilize palm bunches.
After receiving palm bunches, we need boil them by steam for 60mins, in order to damage the lipase and avoid the increase of free fatty acid (FFA), so as to improve the quality of palm oil. This step uses indirect steam sterilization to maintain the quality of the bunches, in case that the bacteria or other impurities contaminate the final oil. In this way, it will be easier to thresh the palm bunches and husk the nuts, as well as prevent the kernels from being damaged.
In today’s market, there are mainly two kinds of sterilizers. One is horizontal sterilizer, the other is vertical sterilizer. Most of our customers choose vertical sterilizer. Because it can save the room for customers. Also, it is environmentally friendly, as it consumes less steam and saves energy.
Vertical palm fruit sterilizer
3.The third step is to separate palm bunches.We often use drum type thresher to separate palm fruits from bunches at this step. Empty bunches occupy about 40% of the palm bunches and are not helpful to make oil, so we need to thresh the palm fruits from palm bunches. The palm fruits can be sent to the next section, while empty palm bunches can be burned as fuels to provide energy or as the covering of the palm fruit farms.
Palm fruit thresher
4.The forth step is to digest palm fruits.
At this step, palm fruits will be sent to digester to separate pulp and nuts and damage its cell structure. At the same time, we will boil the fruits at 90-100℃for about 20mins to soften the pulp. After digesting and boiling, we can get the mixture of damaged palm pulp, fiber and nuts.
5.The fifth step is to press palm fruits.
After the above steps, we can get palm fruits at the best state before being pressed. In the palm oil mill plant, we often use double screw palm oil press machine to get crude palm oil and the press cake. The crude palm oil includes oil, water and impurities, which needs further clarification. The press cake contains fiber and nuts, which can be further separate to make palm kernel oil.
Double screw palm oil press machine
6.The sixth step is to clarify and dry crude palm oil.
Clarification and drying of crude palm oil needs to enter four equipment. First, send the crude oil to the vibrating screento filtrate roughly. Then, oil clarification machinecan achieve crude oil sedimentation to get oil and sediment. After that, the oil can be sent to the plate filter to get relatively pure oil. Finally, send the oil to vacuum drying machine to remove the water, and get oil suitable for storage.
Palm oil clarification machine
*The oil needs to be stored in the holding tank to be sold or further refined. The press cake needs to be further separated and then recycle the nuts to make palm kernel oil.
The whole process involved in making palm oil in palm oil making plant is all above. If you want to invest in palm oil processing business, if you want to buy palm oil machines, welcome to contact Henan Glory. Our engineers will design the most suitable palm oil mill plant project solution according to your needs. Otherwise, as a professional manufacturer, we can provide you equipment with factory price.