Method for obtaining and dehydration of acetone, butanol and ethanol from their water solution, preferably from fermentation broth, through hydrophobic pervaporation

摘要

the object of the application is a way for obtaining and drainage of acetone, butanol and ethanol is suchthe mixture water abe or brzeczku0119 pofermentacyjnu0105 is heated to temperature from 120 degrees to 100u00b0c undergo process micro),and then perwaporacji vacuum module of membranami hydrofobowymi at reduced pressure on the side of permeatu and with reduced temperature in order to wykroplenia permeatu and, as a result of this processin the permeate is a mixture of acetone, butanol and ethanol (abe) with water, and then the resulting mixture (permeate) heading to the container (the phase),in the chapter on the upper organic phase containing from 60% to 70% abe and from 30% to 40% water, and the aqueous phase containing the ok.80% water and 20% abe, the upper organic phase is on the module to perwaporacji hydrophilic.in order to dehydration in membranach hydrophilic polymer or ceramic (pvoh / pva / or polyamide / pa /, or zeolite or modified silica).