Process for extracting oil

A technology for extracting oil and grease, which is applied in the direction of fat oil/fat production and fat generation, can solve the problems of large solvent loss, large loss, and long extraction time, and achieve low energy and solvent consumption, high input-output ratio, and comprehensive The effect of high extraction rate

Inactive Publication Date: 2007-05-16
侯金荣 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The deoiling efficiency of the pressing method is low, and more than 4% of the oil is often left in the cake, or even as high as 10%. material
[0005] Leaching method

Method used

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  • Process for extracting oil

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023] Put 901 kg of jasmine seeds crushed to 10 meshes into extraction kettle 1, close valves 3, 5, 11, and 13, open high vacuum butterfly valve 2, start vacuum pump 7 to extract air from extraction kettle 1, and close high vacuum butterfly valve 2. , Open the valve 13, start the metering pump 14, heat the liquid in the liquid dimethyl ether storage tank 12 through the exchanger 15, using the liquid dimethyl ether as the extraction solvent, and pass it into the extraction according to the weight ratio of material:solvent = 1:2 In the kettle 1, under the conditions of a pressure of 5 kg and an extraction temperature of 30°C, after 30 minutes of extraction, open the pressure reducing valve 3. Under the conditions of a pressure of 1 kg and a temperature of 20°C, the liquid is separated by the separation kettle 4 The grease and dimethyl ether gas are discharged. The dimethyl ether gas enters the gas storage tank 8, and the compressor 9 is started. After the dimethy...

Example Embodiment

[0027] Example 2

[0028] Put 685kg of jasmine seeds crushed to 40 mesh into extraction kettle 1, close valves 3, 5, 11, 13, open high vacuum butterfly valve 2, start vacuum pump 7 to extract air from extraction kettle 1, and close high vacuum butterfly valve 2. Open the valve 13, start the metering pump 14, heat the liquid in the liquid dimethyl ether storage tank 12 through the exchanger 15, using the liquid dimethyl ether as the extraction solvent, and pass it into the extraction kettle at a weight ratio of material:solvent = 1:24 In 1, under the conditions of a pressure of 30 kg and an extraction temperature of 90°C, after 120 minutes of extraction, open the decompression valve 3, and under the conditions of a pressure of 5 kg and a temperature of 60°C, the liquid is separated by the separation vessel 4 Grease and dimethyl ether gas. The dimethyl ether gas enters the gas storage tank 8, and the compressor 9 is started. After the dimethyl ether gas is compressed, it is cooled i...

Example Embodiment

[0032] Example 3

[0033] Put 362kg of jasmine seed shell crushed to 25 mesh into extraction kettle 1, close valves 3, 5, 11, 13, open high vacuum butterfly valve 2, start vacuum pump 7 to extract air from extraction kettle 1, and close high vacuum butterfly valve 2. , Open the valve 13, start the metering pump 14, heat the liquid in the liquid dimethyl ether storage tank 12 through the exchanger 15, using the liquid dimethyl ether as the extraction solvent, and pass it into the extraction according to the weight ratio of material:solvent = 1:3 In the kettle 1, under the conditions of the pressure of 8 kg and the extraction temperature of 35°C, after 40 minutes of extraction, open the pressure reducing valve 3, and under the conditions of the pressure of 5 kg and the temperature of 50°C, the liquid is separated by the separation kettle 4 The grease and dimethyl ether gas are discharged. The dimethyl ether gas enters the gas storage tank 8, and the compressor 9 is started. After th...

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Abstract

The invention discloses a extracting method of grease, which is characterized by the following steps: 1) disintegrating materials to 10-40 order; 2) adopting liquid dimethyl ether as extraction solvent; conveying to materials with the rate of material and dissolvent at 1:2-1:24; extracting 30-120 min under the condition of pressure at 5-30 kilogram at 30-90 Deg C; 3) separating grease in the condition of pressure at 1-5 kilogramat 20-60 Deg C. The invention simplifies the manufacturing craft, which improving extracting rate effectively.

Description

technical field [0001] The invention relates to a method for extracting oil, in particular to a method for extracting oil with liquid dimethyl ether. Background technique [0002] At present, the main methods of low-cost industrial extraction of oil are pressing method and extraction method [0003] There are following defects and deficiencies in above method: [0004] The deoiling efficiency of the pressing method is low, and more than 4% of the oil is often left in the cake, or even as high as 10%. of materials. [0005] The leaching extraction method has long extraction time, low efficiency, large solvent loss, difficult solvent recovery, and is limited to oil cakes or materials with less oil. Contents of the invention [0006] The method of the present invention overcomes the shortcomings of the above methods, and provides a simple process, high extraction rate, less impurity in the product, less energy consumption, less solvent loss, less required equipment, low pr...

Claims

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Application Information

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IPC IPC(8): C11B1/10
Inventor 罗波侯金荣侯金春侯金华
Owner 侯金荣
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