Method for separating tertiary butanol and water
The invention relates to an azeotrope separation method, in particular to a method for separating tertiary butanol and water. The tertiary butanol is separated from the water through a coupling method of total reflux batch distillation and pervaporation. A device comprising a batch distillation towe...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention relates to an azeotrope separation method, in particular to a method for separating tertiary butanol and water. The tertiary butanol is separated from the water through a coupling method of total reflux batch distillation and pervaporation. A device comprising a batch distillation tower, a pervaporation membrane component and a water injection pump is used. The method for separating tertiary butanol and water is characterized in that a separation process comprises the following steps: a tertiary butanol water solution is dropped into the batch distillation tower, the total reflux operation is firstly carried out in the batch distillation tower, the azeotrope of the tertiary butanol-water enters a membrane separator through a condenser to further carry out dehydration separation after being converged at the tower top, permeation side pressure keeps absolute pressure of 700-7500Pa through the injection of the water injection pump, a tertiary butanol water solution separates the tertiary butanol fr |
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