Room temperature dehydration method for hogwash oil with high-water uptake resin

A kind of technology of super absorbent resin and stagnant oil

Inactive Publication Date: 2008-09-24
CHANGCHUN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problems of high cost of dehydration of hogwash oil and insufficient alternative methods in industry

Method used

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  • Room temperature dehydration method for hogwash oil with high-water uptake resin

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The selected superabsorbent resin is sodium-based bentonite-acrylic acid-starch copolymer; the superabsorbent resin is sodium-based bentonite added to the acrylic acid-starch graft copolymer, and the dry product of the acrylic acid-starch graft copolymer: sodium-based The weight percentage of bentonite is 58%: 442%; this chemical feature is consistent with the polymer "the ash value obtained by burning at a temperature of 630°C for 6 hours is 46wt.%"; the superabsorbent resin The appearance is gray particles, the particle size distribution of the particles is 50-200 mesh, of which 50-100 mesh particles account for 75wt.%, 100-200 mesh particles account for 25wt.%; the loose density of the particles is 1g / cm 3 , The stocky density is 1.04g / cm 3 ; 1 gram of the superabsorbent resin particles can absorb distilled water in the range of 120 ± 5 grams;

[0022] Collect hogwash oil, obtain density after filtering off solid matter and clarification is 0.934g / cm 3 Aqueous hogw...

Embodiment 2

[0025] The difference from Example 1 is: at room temperature, according to 1 liter of the water-containing hogwash oil, 100 grams of superabsorbent resin was added, and at room temperature, the superabsorbent resin was added to the above-mentioned water-containing hogwash oil, and shaken with a shaker for 1 Minutes, then stand still, start a shaking table every 1 hour and shake for 1 minute afterwards, filter and discharge the material after shaking 8 times, all the other operations are the same as Example 1, and the weight percent that obtains that this water-containing hogwash oil contains water is 1.6wt.%. Using this method, the percentage of dehydration of the superabsorbent resin at room temperature is 51.81%.

Embodiment 3

[0027] The difference from Example 1 is that at room temperature, 75 grams of superabsorbent resin is added to 1 liter of the water-containing hogwash oil, and at room temperature, the superabsorbent resin is added to the above-mentioned water-containing hogwash oil, and shaken with a shaker for 1 Minutes, then stand still, start a shaking table every 1 hour and shake for 1 minute afterwards, filter and discharge after shaking 8 times, all the other operations are the same as Example 1, and the weight percentage that obtains this water-containing hogwash oil water content is 1.5wt.%. Using this method, the percentage of dehydration of the superabsorbent resin at room temperature is 54.82%.

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Abstract

The invention provides a method for dehydrating waste cooking oil with super absorbent resin at room temperature. The super absorbent resin is the copolymer of sodium bentonite, acroleic acid and starch. The super absorbent resin is prepared by adding sodium bentonite to the graft copolymer of starch and acrylic acid. The dry graft copolymer of acroleic acid and starch accounts for 58 percent by weight and the sodium bentonite accounts for 42 percent by weight. The super absorbent resin absorbs 120 times distilled water. The particles of 50 to 200 meshes of the super absorbent resin are used as the dehydrator of waste cooking oil containing water for dehydrating waste cooking oil containing water with the density from 0.880g / cm3 to 0.934g / cm3. The single dehydration efficiency can exceed 50 percent; the method substitutes for common method for heating and dehydrating waste cooking oil containing water in vacuum or under reduced pressure, thus solving the problems of high cost, large energy consumption and unfriendliness to the environment of industrial dehydration of waste cooking oil.

Description

technical field [0001] The invention relates to a method for dehydrating hogwash oil at room temperature by using a superabsorbent resin. Background technique [0002] Waste cooking oil, also known as swill oil or gutter oil; there are many patent disclosures for the production of biodiesel (biodiesel or biological diesel oil), liquid soap, paint, etc. using it as a raw material. In the two years of Chinese patents from 2006 to 2007, more than 20 patents on the production of biodiesel from hogwash oil were disclosed, such as CN 200610035272.0, CN 200610029462.1, CN 200710019404.5 and CN200710130709.3 patents, etc.; US Patent and Trademark Office 1988-1991 During this period, the patents of using hogwash oil as raw material to manufacture liquid soap were disclosed, such as USP4,792,416, USP 4,806,269, USP 4,839,089 and USP 5,000,870 patents; and such as No. CN 200710008442.0 Chinese patent then discloses that hogwash oil is used as raw material to manufacture alkyd resin (a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B13/00B01J20/26
CPCY02W30/74
Inventor 李云辉刘晓秋王立民彭春宏吴耀明杨秀云林松竹王媛高秀霞
Owner CHANGCHUN UNIV OF SCI & TECH
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