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Some algae species are 50% or more lipid oil by weight. This oil may be pressed from the algae and refined into diesel. The process for extracting algal oil, at its simplest level, resembles pressing an olive. Up to 75% from the oil might be squeezed from algae using a simple mechanical press. Hexane might be used being a solvent to raise extraction up to 95%. Once extracted, the oil is refined through transesterification. A catalyst including sodium hydroxide is combined with alcohol to make biodiesel and glycerol.
Three, in addition to the public security police arrest the criminal suspect, hit the highwaymen, maintain traffic order and deal with traffic accidents, any other personnel shall not flow to check on the road, not intercept in normal running vehicles on the road, passengers should not be subject to the implementation of personal checks.
Selection function: to select or exclude metal objects from different categories by using different metal objects to select or exclude metal objects in different categories.
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