Method and device for processing microalgae

Abstract

The invention provides a method for processing microalgae. The processing method includes placing microalgae liquid in an environment with a normal temperature and pressure, increasing the temperature and pressure of the environment of the microalgae liquid, continuously subjecting the microalgae liquid to the environment after the temperature and pressure are increased, and directly transferring the microalgae liquid to a vacuum environment from the environment. The invention further provides a device for preparing the microalgae, which includes a microalgae liquid storage tank used for storing the microalgae liquid at the normal temperature and under the normal pressure, a high-pressure pump used for pressurizing the microalgae liquid storage tank, a heater used for heating the microalgae liquid storage tank, a vacuum container with a vacuum pump, which is empty inside and used for containing the microalgae liquid obtained from the microalgae liquid storage tank, and a buffer tank used for containing water discharged from the vacuum container. According to the method and the device for processing microalgae, the collecting, wall-breaking and drying of the microalgae are achieved simultaneously or performed by one step and the extraction rate of microalgae oil after wall-breaking can be reached above 90%. The method and the device for processing microalgae have the advantages of simple process, high wall-breaking efficiency, low energy consumption, and the like.

Description

technical field [0001] The present invention relates to a processing method of microalgae, in particular, the present invention relates to a method and a device for processing microalgae. Background technique [0002] Microalgae are a class of individual tiny photoautotrophic and / or heterotrophic single-celled organisms, which have the characteristics of wide distribution, various species, high photosynthetic efficiency, fast growth rate, and strong adaptability. Annual CO fixation by microalgae 2 It accounts for about 40% of the global net photosynthetic output. In addition, it is rich in lipids, hydrocarbons, proteins, soluble polysaccharides, and high-value natural pigments such as astaxanthin and β-carotene. Therefore, it is important in environmental protection, energy and health. Today, when the problem is attracting much attention, microalgae are getting more and more attention. [0003] After the microalgae culture is completed, it is necessary to collect, dry, bre...

AI Technical Summary

Problems solved by technology

[0009] 1) This method needs to add pre-processed saturated steam and high-pressure air, thus increasing energy consumption and having the disadvantage of high energy consumption;

[0010] 2) The introduction of saturated steam further increases the water content in the algae liquid, which has the disadvantage of high subsequent separation of water;

[0011] 3) This method can not complete the wall-breaking, drying and collecting process of microalgae at the same time, and has the disadvantage of poor continuity

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