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
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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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