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

摘要

the object of the application is a way for obtaining and drainage of acetone, butanol and ethanol is,the mixture water abe or brzeczku0119 pofermentacyjnu0105 is heated to temperature from 120 degrees to 100u00b0c undergo process micro),and then leads to termoperwaporacju0119 module with membranami hydrofobowymi, with over permeatu is conducted on the surface of coolingwhich follows wykroplenie permeatu and to paddle to tank (a phase), in which the permeate is distributed into two phases: water and organicin the following chapter, liquid phase and the funnel on the upper phase containing the organic permeatu from 60% to 70% abe and from 30% to 40% water, and the aqueous phase containing the ok.80% water and 20% abe, with 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 silica, modified)and drainage leads at a temperature from 80u00b0c to 110u00b0c using polymeric membranes with polyvinyl alcohol or polyamide.or at temperatures from 100u00b0c to 150u00b0c using ceramic membranes (zeolitowe or modified silica)and then after perwaporacyjnym dehydration mixture is subjected to fractionation destylacyjnemu abe to individual ingredients: acetone, butanol, ethanol.