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Method for removing grease solvent residues by supergravity rotating bed gas extraction method

A technology of supergravity rotating bed and extraction method, applied in the fields of cosmetics, chemical industry, medicine and food, to achieve the effect of easy installation, low operating temperature and low energy consumption

Pending Publication Date: 2022-05-13
赤峰福纳康生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, there is no report in the prior art of using a high-gravity rotating bed to remove residual organic solvents in grease

Method used

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  • Method for removing grease solvent residues by supergravity rotating bed gas extraction method
  • Method for removing grease solvent residues by supergravity rotating bed gas extraction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The three-layer baffled supergravity rotating bed is driven to reach the rated speed, and food-grade carbon dioxide with a pressure of 0.1 MPa is passed into the supergravity rotating bed from the gas inlet pipe (2) as the extraction gas, and the flow rate is set to 40L / h , 120L of residual No. 6 light gasoline (mainly n-hexane and cyclohexane) soybean oil in the raw material storage tank is pumped into the supergravity rotating bed from the liquid feed pipe (6), and the flow rate is set to 100L / h; Recycling treatment, solvent residual detection results: n-hexane is 1.5ppm; cyclohexane is 1ppm.

Embodiment 2

[0053]The three-layer baffled supergravity rotating bed is driven to reach the rated speed, and the food-grade nitrogen with a pressure of 0.1MPa is introduced into the supergravity rotating bed from the gas inlet pipe (2) as the extraction gas, and the flow rate is set to 50L / h , pump the peanut oil liquid feed pipe (6) of 120L of No. 6 light gasoline (mainly n-hexane and cyclohexane) remaining in the raw material storage tank into the supergravity rotating bed, and the flow rate is set to 100L / h; after four cycles Treatment, solvent residue detection results: n-hexane was not detected; cyclohexane was not detected.

Embodiment 3

[0055] The three-layer baffled supergravity rotating bed is driven to reach the rated speed, and the food-grade carbon dioxide with a pressure of 0.1MPa is passed into the supergravity rotating bed from the gas inlet pipe (2) as the extraction gas, and the flow rate is set to 60L / h , the fullerene linseed oil solution containing 120L of residual o-xylene in the raw material storage tank is pumped from the liquid feed pipe (6) into the supergravity rotating bed, and the flow rate is set to 100L / h; Test results: o-xylene was not detected.

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Abstract

The invention relates to a method for removing grease solvent residues by a supergravity rotating bed gas extraction method, which comprises the following steps of: starting a supergravity rotating bed to reach a rated rotating speed, introducing food-grade carbon dioxide from a gas-state feeding hole, pumping grease containing residual solvents in a raw material storage tank from a liquid-state feeding hole, and feeding the grease into a gas-phase feeding hole; and grease obtained after gas extraction enters the intermediate storage tank, and the treatment is circulated until the solvent residue is qualified.

Description

technical field [0001] The invention belongs to the fields of food, cosmetics, medicine and chemical industry, and particularly relates to a technology for removing oil and grease solvent residues by a supergravity rotating bed gas extraction method. technical background [0002] In the production process of oils and fats, due to technological reasons, organic solvents may be used, resulting in excessive solvent residues in the product: for example, the production of edible oil by chemical leaching generally uses No. 6 light gasoline, resulting in the residues of solvents such as n-hexane and cyclohexane; Solvents such as toluene are used in the refining process of lanolin, and aromatic solvents such as toluene and o-xylene are used in the production of fullerene oil solution. It is difficult to remove these solvents in the product. At present, the methods for removing residual solvents mainly include supercritical carbon dioxide extraction, molecular distillation, and steam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/00C11B1/10
CPCB01D11/00C11B1/10B01D2011/007
Inventor 格日乐图姜俐赜赵一楠武万里
Owner 赤峰福纳康生物技术有限公司
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