Composite multi-carbon alcohol cosolvent and preparation method thereof

A co-solvent and multi-carbon alcohol technology, which is applied in the field of composite poly-carbon alcohol co-solvent and its preparation, can solve the problems of high cost of monomer poly-carbon alcohol co-solvent, high corrosion of alcohol-oil co-solvent, and unsatisfactory problems. Efficient dissolving cost, low price, avoiding the effect of toxicity

Inactive Publication Date: 2012-04-04
河南超燃清洁能源科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many kinds of co-solvents to promote the mutual solubility of alcohol and oil, most of them are not ideal in terms of their effectiveness in promoting the mutual solubility of alcohol and oil, product cost, toxicity,

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Take the leftovers of ethanol production plant containing liquid multi-carbon alcohols such as ethanol, propanol, isopropanol, n-butanol, tert-butanol, pentanol, isoamyl alcohol, hexanol, heptanol, octanol, nonanol, decanol, etc. 1 ton of material, containing 30.6% moisture by mass, 47.4% ethanol, 8% propanol and isopropanol, 9% butanol and its isomerized alcohols, and the other 5% are amyl alcohol, isoamyl alcohol, hexanol, and heptanol , octanol, nonanol, decanol. The pH of the feed solution was 7.1.

[0017] The above-mentioned water-containing polycarbonate alcohol leftovers are separated by filtration, and 0.1 kg of solid particles are removed by pretreatment (1 / 10,000 loss of 1 ton raw material mass, negligible in material balance); and then dehydration by pervaporation membrane, using Beijing Hongzhi Special equipment provided by Jiahe Technology Co., Ltd., including raw material tanks, filters, feed pumps, heat exchangers, membrane devices, vacuum pumps, conden...

Embodiment 2

[0020] Wastes from breweries containing ethanol, propanol, isopropanol, n-butanol, tert-butanol, pentanol, isoamyl alcohol, hexanol, heptanol, octanol, nonanol, decanol, etc. 1 ton, containing 20.4% water by mass, 57.6% ethanol, 12.0% propanol and isopropanol, 8.0% butanol and its isomeric alcohols, and the other 2.0% are pentanol, isoamyl alcohol, hexanol, heptanol, Octanol, Nonanol, Decyl Alcohol, etc. The pH value of this feed solution is 7.3. The above water-containing multi-carbon fusel alcohol leftovers are separated by centrifugation, and 0.1kg of solid particles are removed by pretreatment (1 / 10,000 loss of 1 ton raw material mass, negligible in material balance); and then pervaporation membrane dehydration, using Beijing Hongzhi Special equipment provided by Jiahe Technology Co., Ltd., including raw material tanks, filters, feed pumps, heat exchangers, membrane devices, vacuum pumps, condensers, product tanks, dewatering tanks and corresponding connecting pipelines, ...

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PUM

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Abstract

The present invention discloses a composite multi-carbon alcohol cosolvent and a preparation method thereof. The composite multi-carbon alcohol cosolvent adopts offcuts from an ethanol production plant or a winery as raw materials, wherein the offcuts comprise 40-70% of ethanol, 5-15% of propanol and isopropanol, 5-15% of n-butanol, isobutanol and tert butyl alcohol, 1-5% of amyl alcohol, isoamyl alcohol, hexyl alcohol, heptanol, octanol, nonanol, decanol and other liquid multi-carbon alcohols, and 14-40% of water. With performing steps of the raw material pretreatment, pervaporation membrane dehydration, blending and the like, the composite multi-carbon alcohol cosolvent with the water content less than 0.5% is prepared. The composite multi-carbon alcohol cosolvent can be adopted as an alcohol oil cosolvent, and the assistant dissolution effect of the composite multi-carbon alcohol cosolvent is high. The composite multi-carbon alcohol cosolvent provides lower toxicity than the aromatic alcohol oil cosolvent, and provides lower corrosion than the acetone alcohol oil cosolvent. In the prior art, boiling points of the propanol, the isobutanol, the n-butanol and the like are close to the boiling point of the water, and the azeotrope effect is further generated, such that the dehydration is difficult to perform by the fractionation method. With the preparation method of the present invention, the disadvantage in the prior art is overcome. The production cost for the composite multi-carbon alcohol cosolvent is significantly lower than the production cost of the composite multi-carbon alcohol cosolvent produced by blending the corresponding monomer multi-carbon alcohol, and the assistant dissolution effect of the composite multi-carbon alcohol cosolvent is higher than the assistant dissolution effect of each monomer multi-carbon alcohol.

Description

technical field [0001] The invention relates to a composite multi-carbon alcohol cosolvent used for solubilizing hydrocarbons, methanol and ethanol and a preparation method thereof. Background technique [0002] When gasoline, diesel oil and other hydrocarbons are blended with methanol, ethanol and other alcohols, due to the large difference in lipophilic and hydrophilic properties, they are usually incompatible and stratified. When the temperature is low or contains water, the stratification phenomenon is more serious. Therefore, it is very necessary to develop alcohol-oil co-solvents with superior performance. Although there are many kinds of co-solvents for promoting the mutual solubility of alcohol and oil, most of them are not ideal enough in terms of their effectiveness in promoting mutual solubility of alcohol and oil, product cost, toxicity, and corrosiveness. For example, monomeric multi-carbon alcohol co-solvents have high cost and poor efficacy, alcohol-oil co-so...

Claims

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Application Information

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IPC IPC(8): C10L1/182
Inventor 冯向法
Owner 河南超燃清洁能源科技有限公司
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