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Process for extracting residual oil from oil-tea cake

A technology of camellia oleifera cake and residual oil, which is applied in the direction of fat oil/fat refining and fat production, which can solve the problems of no extraction and poor quality of oil products, and achieve the effects of improved extraction rate, low raw material cost and low energy consumption

Pending Publication Date: 2020-05-22
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that there is no method for extracting oil-tea camellia cake with low oil content, and the quality of the extracted oil is poor, so as to provide a method for extracting residual oil from camellia oleifera cake. craft

Method used

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  • Process for extracting residual oil from oil-tea cake
  • Process for extracting residual oil from oil-tea cake

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The present embodiment provides a kind of technique of extracting residual oil from Camellia oleifera cake, comprises the following steps,

[0037] Put the Camellia oleifera cake after cleaning with distilled water and removing impurities, put it into the pulverizer 1 with a rotating speed of 150r / min, and pulverize it for 30min. The diameter is not greater than 0.3mm powder, wherein, the filling rate of camellia oleifera cake in the pulverizer is 15%, and the filling rate of the grinding medium is 15%.

[0038] Accurately weigh 0.5 kg of pulverized Camellia oleifera cake and 4.5 kg of water, mix them in the mixer 4, and prepare a mixed liquid for subsequent use.

[0039] Add the mixed solution into the ultrasonic reactor 5 with temperature control and stirring for ultrasonic stirring, extract the residual oil, and disperse the residual oil in the camellia oleifera cake into water under the action of ultrasonic; the ultrasonic temperature is 80°C, and the ultrasonic tim...

Embodiment 2

[0045] The present embodiment provides a kind of technique of extracting residual oil from Camellia oleifera cake, comprises the following steps,

[0046] Put the Camellia oleifera cake after cleaning with distilled water and removing impurities into the pulverizer 1 with a rotating speed of 200r / min for pulverization for 40min, and then send it to the powder separator 3 through the hoist 2 for sieving, and sieve to the particle size. The diameter is not greater than 5mm powder, wherein, the filling rate of camellia oleifera cake in the pulverizer is 20%, and the filling rate of the grinding medium is 18%.

[0047] Accurately weigh 1 kg of pulverized Camellia oleifera cake and 4 kg of water, mix them in the mixer 4, and prepare a mixed liquid for subsequent use.

[0048] Add the mixed solution into the ultrasonic reactor 5 with temperature control and stirring for ultrasonic stirring, extract the residual oil, and disperse the residual oil in the camellia oleifera cake into wate...

Embodiment 3

[0053] The present embodiment provides a kind of technique of extracting residual oil from Camellia oleifera cake, comprises the following steps,

[0054] The camellia cake after cleaning with distilled water and removing impurities is put into the pulverizer 1 with a rotating speed of 160r / min for pulverization for 40min, and then sent to the powder classifier 3 through the hoist 2 for sieving, and sieves to a fine grain size. The diameter is not greater than 6mm powder, wherein, the filling rate of the oil tea cake in the pulverizer is 16%, and the filling rate of the grinding medium is 23%.

[0055] Accurately weigh 1.5 kg of pulverized camellia oleifera cake and 3.5 kg of water, mix them in the mixer 4, and prepare a mixed liquid for subsequent use.

[0056] Add the mixed solution into the ultrasonic reactor 5 with temperature control and stirring for ultrasonic stirring, extract the residual oil, and disperse the residual oil in the camellia oleifera cake into water under...

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Abstract

The invention belongs to the technical field of tea oil extraction, and particularly relates to a process for extracting residual oil from a tea-oil cake. The process comprises the following steps: crushing oil tea cakes, carrying out sieving, and adding water to prepare a mixed solution for later use; carrying out ultrasonic stirring on the mixed solution obtained in the step (1), and conductingfiltering to obtain an emulsion; and carrying out demulsification and centrifugal separation on the emulsion to obtain an oil product. According to the method, ultrasonic stirring and demulsificationare matched for use, the tea oil cake with low oil content can be further extracted, and the extraction rate of residual oil in the tea oil cake is 75-80%; compared with a traditional method, the extraction rate of the residual oil is increased by 5-10%, and the method is short in extraction time, high in extraction efficiency and low in energy consumption. According to the method, water is used as a solvent, so the extracted oil product does not contain an organic solvent, the problem that the quality of oil products become poor due to the fact that hexane is used as the solvent in the priorart is solved, and the problems of environmental pollution and the like caused by separating hexane from the oil products in a later period are avoided.

Description

technical field [0001] The invention belongs to the technical field of camellia oil extraction, and in particular relates to a process for extracting residual oil from camellia oleifera cake. Background technique [0002] Camellia oleifera is an important woody oil tree species in southern my country and one of the world's four largest woody oil source tree species. As of 2009, the planting area of ​​camellia oleifera in my country is about 45 million mu, the output of camellia oleifera seeds is about 1 million tons per year, and the annual output of camellia oleifera is 260,000 tons. Camellia oleifera cake is the residue left after oil extraction of camellia oleifera, which contains protein, oil, tea saponin, crude fiber, sugar, tannin, caffeine and other substances. Camellia oleifera cake produced by pressing method contains residual oil 5- 10%. The output of camellia oleifera cake in my country is very high, about three times that of camellia oil. Because the tea cake t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00
CPCC11B3/001Y02W30/74
Inventor 邹来禧刘良鸿杨阳刘伟刘彦希欧阳少波熊道陵
Owner JIANGXI UNIV OF SCI & TECH
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