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Low-temperature dehydration method of tea oil

A low-temperature dehydration and camellia oil technology, applied in the direction of fat oil/fat refining, fat production, etc., to achieve the effects of sufficient liquid-solid contact, shortened dehydration time, and simple equipment

Active Publication Date: 2014-11-12
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the defects existing in the dehydration method in the existing camellia oil production technology, the present invention provides a low-temperature dehydration method of camellia oil that is economically feasible, easy to operate, and maintains high-quality camellia oil

Method used

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  • Low-temperature dehydration method of tea oil

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Experimental program
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Effect test

Embodiment 1

[0017] see figure 1 , the low-temperature dehydration of camellia oil concrete operation steps are as follows:

[0018] Step 1: Preparation of the molecular sieve bed: take 4A molecular sieve, put it into the distribution plate in the molecular sieve fluidized bed tower 12 from the molecular sieve inlet 11;

[0019] Step 2: Molecular sieve fluidized bed assisted negative pressure low-temperature dehydration: Put 50L of camellia seed crude oil pressed at low temperature to be dehydrated into the oil storage tank 1, adjust the first regulating valve 3, and transfer the oil through the oil pump 2 and the rotameter 4 The oil in the storage tank 1 is input into the first heater 5 and heated until the oil inlet thermometer 7 shows 45°C, the first regulating valve 3 and the second regulating valve 6 are adjusted, the second heater 19 is turned on, and the molecular sieve fluidized bed tower 12 is heated. The apparent fluidization liquid velocity of the oil is 1.5mm / s, the aspect rat...

Embodiment 2

[0022] Step 1: Preparation of the molecular sieve bed: take 5A molecular sieve, put it into the distribution plate in the molecular sieve fluidized bed tower 12 from the molecular sieve inlet 11;

[0023] Step 2: Negative-pressure low-temperature dehydration assisted by molecular sieve fluidized bed: put 30 L of washed oil of camellia oleifera seeds to be dehydrated into oil storage tank 1, adjust the first regulating valve 3, and pump oil storage tank 1 through oil pump 2 and rotameter 4 The oil input in the first heater 5 is heated until the oil inlet thermometer 7 shows 45°C, the first regulating valve 3 and the second regulating valve 6 are adjusted, and the second heater 19 is opened to make the oil in the molecular sieve fluidized bed tower 12 The apparent fluidized liquid velocity is 1.0 mm / s, the aspect ratio of the bed of molecular sieve 10 is 8:1, and the thermometer 9 at the bed mouth of the bed of molecular sieve 10 shows 60°C, then turn on the negative pressure pum...

Embodiment 3

[0026] Step 1: Preparation of the molecular sieve bed: take 4A molecular sieve, put it into the distribution plate in the molecular sieve fluidized bed tower 12 from the molecular sieve inlet 11;

[0027] Step 2: Molecular sieve fluidized bed assisted negative pressure low-temperature dehydration: Put 30L of tea seed crude oil pressed at low temperature to be dehydrated into the oil storage tank 1, adjust the first regulating valve 3, and transfer the oil through the oil pump 2 and the rotameter 4 The oil in the storage tank 1 is input into the first heater 5 and heated until the oil inlet thermometer 7 shows 45°C, the first regulating valve 3 and the second regulating valve 6 are adjusted, the second heater 19 is turned on, and the molecular sieve fluidized bed tower 12 is heated. The apparent fluidization liquid velocity of the oil is 1.2mm / s, the aspect ratio of molecular sieve 10 bed is 5: 1, the bed mouth thermometer 9 of molecular sieve 10 bed shows 65 ℃, then open negati...

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Abstract

The invention provides a low-temperature dehydration method of tea oil. The low-temperature dehydration method specifically comprises the following steps: (1) preparing a molecular sieve bed layer, namely, putting a molecular sieve onto a bed layer distribution plate; (2) performing molecular sieve fluidized bed assisted negative pressure low-temperature dehydration, namely, putting tea oil to be dehydrated into an oil storage tank, conveying the tea oil into a heater for heating to be 40-50 DEG C, further feeding into the bed layer of a molecular sieve fluidized bed, at the same time starting a negative pressure pump for performing molecular sieve fluidized bed assisted negative pressure dehydration treatment for 1.5-2.0 hours, and collecting fluid inside the bed layer of the molecular sieve fluidized bed, thereby obtaining the dehydrated tea oil. By adopting molecular sieve fluidized bed assisted negative pressure low-temperature dehydration, not only is the dehydration efficiency high, is the equipment simple, is the cost low and is the operation easy, but also thermosensitive physiologic active matters such as linoleic acid, tea polyphenol and vitamin E in the tea oil are protected and prevented from being damaged, and the inherent quality and the health effect of the tea oil are maintained.

Description

technical field [0001] The invention belongs to the field of oil processing, and in particular relates to a low-temperature dehydration method of camellia oil. Background technique [0002] In the process of oil processing, pressing and washing operations will produce a certain amount of water. The presence of moisture will shorten the shelf life of the oil and reduce the transparency of the finished oil and other adverse effects. Therefore, it is necessary to try to remove these moisture. At present, there are two main methods for removing moisture in oil: one is to use machine dehydration, and the other is to use evaporation to dehydrate. Machine dehydration uses the difference in oil-water density to make the high-speed rotating oil-water mixture generate different centrifugal forces in the dehydrator, thereby separating the oil and water; but the existing dehydrator has complex structure, difficult maintenance, high production cost, and dehydration. The quality is not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/10
Inventor 罗水忠潘利华郑志姜绍通潘丽军陈同铸
Owner HEFEI UNIV OF TECH
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