Method of processing algae and blue-green algae

摘要

The present invention relates to a method for processing algae and blue-green algae to obtain oil by breakage of their cell wall with the use of microwave radiation. Water suspension of algae is first adjusted by the addition of a hydrophobic sorbent in an amount ranging from 0.5 to 5 percent by weight and so adjusted suspension is the heated at a pressure in the range of about 200 to about 2000 kPa by the action of microwave radiation to a temperature in the range of 105 to 190 degC for a period of 1 to 5 minutes. Subsequently, the suspension is let to expand and after cooling down and separation of disintegrated algae, the sorbent with sorbed oil is separated from the water layer wherein the sorbed oil is then isolated by an extracting agent.