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Dewaxing process for vegetable oil by waste clay and spent carbon

A technology of vegetable oil and activated carbon, which is applied in recycling technology, recovery/refining of fatty substances, recovery of fatty substances, etc. It can solve the problems of a large amount of steam, manual consumption of electric energy, increase of production cost, loss of vegetable oil, etc., and avoid the loss of vegetable oil , Save consumption costs, reduce production costs

Inactive Publication Date: 2009-01-07
SHANDONG SANXING CORN IND SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the separation process after decolorization, because part of the vegetable oil is mixed in clay and activated carbon, it will cause about 0.3-0.5% loss of vegetable oil
Moreover, this separation process requires a large amount of steam, electric energy, and labor consumption, which increases the production cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The vegetable oil after the decolorization treatment is heated to 103 DEG C, the white clay separated after the decolorization treatment of 1% by weight of the vegetable oil, the activated carbon separated after the decolorization treatment of 0.1% by weight of the vegetable oil are mixed with the above-mentioned vegetable oil after the decolorization treatment, and after mixing, send Put into the decolorization tower, absorb for 15 minutes, then pump the material formed after adsorption into the crystallization tank, lower the temperature of the material to 10°C, grow the crystal for 18 hours, then send the material after the crystal growth to the filter for separation, and separate the vegetable oil .

Embodiment 2

[0016] The vegetable oil after the decolorization treatment is heated to 110 DEG C, the clay separated after the decolorization treatment of 3% of the weight of the vegetable oil, the activated carbon isolated after the decolorization treatment of 0.3% of the weight of the vegetable oil are mixed with the above-mentioned vegetable oil after the decolorization treatment, and after mixing, send Put into the decolorization tower, absorb for 40 minutes, then pump the material formed after adsorption into the crystallization tank, lower the temperature of the material to 30°C, grow the crystal for 26 hours, then send the material after the crystal growth to the filter for separation, and separate the vegetable oil .

Embodiment 3

[0018] Heating the decolorized vegetable oil to 106°C, mixing 1-3% by weight of the vegetable oil with white clay separated from the decolorized treatment, and 0.2% by weight of the vegetable oil with activated carbon separated from the decolorized vegetable oil and the above-mentioned vegetable oil after the decolorized treatment. , sent to the decolorization tower, adsorbed for 30 minutes, then pumped the material formed after adsorption into the crystallization tank, lowered the temperature of the material to 20°C, and grew the crystal for 20 hours, then sent the material after the crystal growth to the filter for separation, separation out vegetable oil.

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Abstract

The invention provides a vegetable oil dewaxing process by using waste clay and waste activated carbon, which belongs to a process used in producing vegetable oil. The process is that the vegetable oil which is processed decolorizing treatment is heated. The separated clay, active carbon and vegetable oil after being processed decolorizing treatment are mixed together. After mixed, the mixture is sent into a bleaching tower to be absorbed. The materials formed after being processed absorption are pumped into a crystallizer to be crystallized. The crystallized materials are sent into a segregator to be separated. The vegetable oil is separated. The dewaxing process uses the separated clay and active carbon after being processed decolorizing treatment. The clay and the active carbon are reused. Diatomite and perlite are not needed to be added to be as the filter aid in the dewaxing process. The consumption cost of the filter aid is saved, and so the production cost of the vegetable oil can be greatly reduced. The dewaxing effect is good.

Description

technical field [0001] The invention provides a process in vegetable oil production, especially a dewaxing process. Background technique [0002] In the process of vegetable oil production, it is necessary to dewax the vegetable oil to improve the quality of vegetable oil. The current decolorization and dewaxing processes are carried out separately, that is, firstly, clay and activated carbon are used as decolorizing agents for decolorization, and then the clay and activated carbon are separated from the decolorized vegetable oil. Add diatomaceous earth and perlite to the decolorized vegetable oil as filter aids for dewaxing treatment, and finally separate the dewaxed vegetable oil. This dewaxing process requires new additions of filter aids, which increases production costs. During the separation process after decolorization, because part of the vegetable oil is mixed in clay and activated carbon, this will cause about 0.3-0.5% loss of vegetable oil. And this separation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B11/00
CPCY02W30/74
Inventor 王明星
Owner SHANDONG SANXING CORN IND SCI CO LTD
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