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Method of coproducting phytosterol, biological diesel oil and vitamin E

A technology for biodiesel and phytosterols, which is applied in the production of biological raw materials, biofuels, and bulk chemicals, can solve the problems of increasing equipment investment costs and production and operation costs, high biodiesel costs, and increasing production costs, and achieves low cost. , The effect of less harmful solvent residue and simple process

Inactive Publication Date: 2007-09-12
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the methods to reduce the production cost of biodiesel mainly include state subsidies and the use of catering waste oil as raw materials. production costs; and state subsidies are not a long-term solution after all
At the same time, the esterification temperature in the current biodiesel preparation method is relatively high, which increases equipment investment costs and production and operation costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Step 1: Mix 200g of soybean deodorized distillate with methanol at a molar ratio of 1:3 and place it in an esterification device at a temperature of 65°C, then add 4g of concentrated sulfuric acid, and esterify for 3 hours at a stirring speed of 80 rpm , and then washed with water at 78°C until neutral, after layering to remove water, recover methanol at 60°C and 0.3 atmospheric pressure; in the stage of esterification of glycerides, the remaining soybeans are deodorized and distilled after the first step of esterifying free fatty acids to recover methanol Mix the product with methanol at a molar ratio of 1:4 and place it in an esterification device at a temperature of 46°C, then add 5g of potassium hydroxide for 2 hours of esterification, then wash with water at 80°C until neutral, and remove the water by layering. Methanol was recovered at 50°C and 0.4 atmospheric pressure, and the remaining liquid was stored in a refrigerator at 0°C for 14 hours and then filtered with...

Embodiment 2

[0019] Step 1: Mix 200g of rapeseed deodorized distillate with ethanol at a molar ratio of 1:4 and place it in an esterification device at a temperature of 45°C, then add 10g of concentrated sulfuric acid, and perform esterification at a stirring speed of 40 rpm 4h, then wash with water at 50°C until neutral, after layering to remove water, recover ethanol at 65°C and 0.3 atmospheric pressure; in the stage of esterification of glycerides, deodorize the remaining rapeseed after the first step of esterifying free fatty acids to recover ethanol Distillate, according to the rapeseed deodorization distillate and ethanol are mixed in a molar ratio of 1:5 and placed in an esterification device with a temperature of 75°C, then add 1% sodium methoxide to the quality of the rapeseed deodorization distillate, and the esterification time 4h, then wash with water at 60°C until neutral, after layering to remove water, recover ethanol at 60°C under 0.1 atmosphere pressure, store the remaining...

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PUM

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Abstract

This invention provides a method to produce phytosterols, biodiesel and vitamin E together, and its characters: (1) conducting esterification on plants oil by-products and low carbon alcohol, washing the products and removing water on layer, recovering the lower carbon alcohol under 40 ~ 60deg.C and 0.6~0.8 ATM, the remained liquid is stored at 3~5deg.C for 8~24 hours for sucking filtration to get phytosterols, (2) locating the filtrate in the extraction reactor with supercritical carbon dioxide to extract biodiesel at 30~80deg.C, 9~15MPa, (3) increasing the pressure of reactor to 20~35MPa, to extract vitamin E at 30~80deg.C.

Description

Technical field [0001] The invention provides a co-production method of phytosterol, biodiesel and vitamin E, which belongs to the technical field of agricultural and sideline resources processing. Background technique [0002] At present, in the food industry, especially the health food industry, vitamin E and phytosterols are in short supply. At present, the preparation method of vitamin E generally adopts the supercritical extraction method, but its equipment investment is too high, which leads to the high price of vitamin E products, and the condition pressure of supercritical preparation of vitamin E is relatively high and the time is too long. The preparation method of phytosterol is complex and the process is cumbersome. At the same time, fatty acid methyl ester-based biodiesel is one of the most effective ways to alleviate the domestic and foreign petrochemical diesel crisis. At present, as Li Shijuan pointed out in the article "Biodiesel Application Status and Dev...

Claims

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Application Information

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IPC IPC(8): C07J9/00C07D311/72C10G3/00
CPCY02E50/13Y02E50/10Y02P20/54Y02P30/20
Inventor 周泉城盛桂华
Owner SHANDONG UNIV OF TECH
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