| 摘要 |
PURPOSE: Provided is a purifying method of pyroligneous liquid solution eliminating unnecessary carbonization odor, tar, phenol and alcohol without destroying the major functional components. The purified pyroligneous liquid solution is used as additives in cosmetics and foods for deodorizing purposes. CONSTITUTION: The purification method comprises adding the pyroligneous liquid solution in a supercritical-pressure or subcritical-pressure extractor reactor and flushing with supercritical or subcritical fluid such as carbon dioxide, ethylene, ethane, propane, acetylene, ammonia and methane at 5-100deg.C under 20-500bar.
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