Method and device for processing microalgae

A technology of microalgae and microalgae liquid, which is applied in the direction of fat production, fat oil/fat production, etc. It can solve the problems that the microalgae wall breaking, drying and collection process cannot be completed at the same time, the water content of the algae liquid is increased, and the separated water is high. Achieve the effects of saving post-processing steps, good drying effect and simple process flow

Active Publication Date: 2012-07-11
ENN SCI & TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Method and device for processing microalgae
  • Method and device for processing microalgae
  • Method and device for processing microalgae

Examples

Experimental program
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Effect test

Embodiment 1

[0034] The water content in the algae liquid storage tank is 88.6% chlorella (chlorella) (Prototheca oil content rate is 29.145% (dry basis)) algae liquid, algae mud are added in the piston tank, and the addition is 500ml (supplementary adding volume), pressurize the piston tank with a nitrogen cylinder, and the pressurized algae liquor enters the preheater, the temperature of the preheater is maintained at 80°C, pressurized to 10MPa, and stays in the preheater for 0.5h. Then the material is discharged into the vacuum tank, the vacuum degree in the vacuum tank is maintained at -0.0875 ~ -0.09Mpa, and the temperature of the vacuum tank is maintained at 50°C to ensure that water exists in gaseous form under this condition. Water enters the buffer tank behind the vacuum tank in gaseous form, and the temperature of the buffer tank is room temperature to ensure that the water is liquefied. The broken microalgae and algae oil remain in the vacuum tank to achieve the effect of microa...

Embodiment 2

[0036] Add chlorella vulga (chlorella vulga) (the oil content of Prototheca 29.145% (dry basis)) with a water content of 88.6% in the algae liquid storage tank to the piston tank, and the amount of addition is 500ml , using a nitrogen cylinder to pressurize the piston tank, the pressurized algae liquid enters the preheater, the temperature of the preheater is maintained at 120 ° C, pressurized to 2 MPa, and stays in the preheater for 3 hours. Then the material is released into the vacuum tank, the vacuum degree in the vacuum tank is maintained at -0.0595 ~ -0.06Mpa, and the temperature of the vacuum tank is maintained at 90°C to ensure that water exists in gaseous form under this condition. Water enters the buffer tank behind the vacuum tank in gaseous form, and the temperature of the buffer tank is room temperature to ensure that the water is liquefied. The broken microalgae and algae oil remain in the vacuum tank to achieve the effect of microalgae drying. Then, the algae o...

Embodiment 3

[0038]The water content in the algae liquid storage tank is 99.7% Phaeodactylum tricornutum Bohlin (Phaeodactylum tricornutum Bohlin) (Prototheca oil content rate is 29.145% (dry basis)) algae liquid and algae mud are added in the piston tank, the addition is 500ml, utilizes The nitrogen cylinder pressurizes the piston tank, and the pressurized algae liquor enters the preheater, the temperature of the preheater is maintained at 90°C, pressurized to 3.3MPa, and stays in the preheater for 1h. Then discharge the material into the vacuum tank, the vacuum degree in the vacuum tank is maintained at -0.0775~-0.08Mpa, and the temperature of the vacuum tank is maintained at 70°C to ensure that water exists in gaseous form under this condition. Water enters the buffer tank behind the vacuum tank in gaseous form, and the temperature of the buffer tank is room temperature to ensure that the water is liquefied. The broken microalgae and algae oil remain in the vacuum tank to achieve the ef...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/02
Inventor 张玉宝宋成才程乐明宋庆峰赵晓杜娟王青谷蔚曹雅琴
Owner ENN SCI & TECH DEV
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