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A method for large-scale cultivation of microalgae

A microalgae and flow channel technology, applied in the field of large-scale cultivation of microalgae, can solve the problems of low photosynthetic efficiency and light energy utilization rate of microalgae, and achieve the effect of improving light energy utilization rate and photosynthetic efficiency, and increasing production

Active Publication Date: 2017-05-24
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tubular, column and plate photobioreactors are typical closed photobioreactors. On this basis, many new photobioreactors have been developed. Although the shortcomings of open photobioreactors have been overcome to a certain extent, However, the photosynthetic efficiency and light energy utilization efficiency of microalgae are still low

Method used

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  • A method for large-scale cultivation of microalgae
  • A method for large-scale cultivation of microalgae
  • A method for large-scale cultivation of microalgae

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] This example is used to illustrate the method for the large-scale cultivation of microalgae of the present invention.

[0055] Grow Chlorella under natural light. The photobioreactor consists of upper and lower flow channels 1, a liquid storage tank and a circulation pump. The flow channels 1 are all effective light surface areas. Each flow channel 1 is 150 cm long, 10 cm wide, and 5 cm thick. There is no inclination angle, and the flow The bottom surface of the channel 1 is a non-light-proof surface, and 10 spoilers 2 are arranged on the non-light-proof surface of each channel 1. The spoiler 2 is formed by extending the spoiler section 23 along the first direction Y. The spoiler section 23 It consists of three sides connected in sequence to form a closed shape, namely the first side 231, the second side 232 and the third side 233, the first side 231 and the second side 232 are concave curved sides, and the third side 233 is a straight side , the first side 231 , the s...

Embodiment 2

[0057] This example is used to illustrate the method for the large-scale cultivation of microalgae of the present invention.

[0058]Grow Chlorella under natural light. The photobioreactor consists of upper and lower flow channels 1, a liquid storage tank and a circulation pump. The flow channels 1 are all effective light surface areas. Each flow channel 1 is 150 cm long, 10 cm wide, and 15 cm thick. The inclination angle of the flow channel is 1 degree, the bottom surface of the flow channel 1 is a non-light-proof surface, and 10 spoilers 2 are arranged on the non-light-proof surface of each flow channel 1, and the spoiler 2 is formed by extending the spoiler section 23 along the first direction Y, The spoiler section 23 is composed of three sides connected in sequence to form a closed shape, namely the first side 231, the second side 232 and the third side 233, the first side 231 and the second side 232 are concave curved sides, and the third side 233 is a straight side, th...

Embodiment 3

[0060] This example is used to illustrate the method for the large-scale cultivation of microalgae of the present invention.

[0061] Grow Chlorella under natural light. The photobioreactor is composed of upper and lower flow channels 1, a liquid storage tank and a circulating pump. The flow channels 1 are all effective light surface areas. Each flow channel 1 is 150 cm long, 10 cm wide, and 30 cm thick. The inclination angle of the flow channel is 3 degrees, the bottom surface of the flow channel 1 is an unlit surface, and 10 spoilers 2 are arranged on the unlit surface of each flow channel 1, and the spoilers 2 are formed by extending the spoiler section 23 along the first direction Y, The spoiler section 23 is composed of three sides connected in sequence to form a closed shape, namely the first side 231, the second side 232 and the third side 233, the first side 231 and the second side 232 are concave curved sides, and the third side 233 is a straight side, the first side...

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Abstract

The invention discloses a method for large-scale cultivation of microalgae. The method includes cultivating microalgae in a photobioreactor under microalgae cultivation conditions. The reactor comprises a runner (1) and spoilers (2). The spoilers (2) are formed by extension of turbulence sections (23) along a first direction (Y). Each turbulence section (23) comprises a first side (231), a second side (232) and a third side (233) that are connected in order into a closed shape, and the three sides extend along the first direction (Y) respectively to form a first turbulence surface (21), a second turbulence surface (22) and a base surface. The first side (231) and the second side (232) are concave curved sides, the base surface is attached to the inner surface of the runner (1), the first turbulence surface (21) and the second turbulence surface (22) are arranged obliquely relative to the base surface, and the first direction (Y) crosses with the extension direction (X) of the runner (1). The method provided by the invention can improve the yield of microalgae.

Description

technical field [0001] The invention relates to a method for cultivating microalgae on a large scale. Background technique [0002] In recent years, microalgae have been considered as one of the important raw materials for bioenergy and a long-term strategy to solve the future energy crisis, and have become a research hotspot. At present, the large-scale cultivation of microalgae is the bottleneck restricting the development of the microalgae bioenergy industry chain. How to realize the large-scale and high-yield cultivation of microalgae is one of the problems to be solved urgently. [0003] Light transmission is the main factor affecting the large-scale cultivation of microalgae, which directly affects the photosynthetic efficiency, growth state and light energy utilization rate of microalgae. In the research and development of microalgae culture, the photosynthesis characteristics of microalgae can be used to improve photosynthetic efficiency, for example, when the repla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/12C12R1/89
CPCC12M21/02C12M27/18
Inventor 朱俊英荣峻峰宗保宁黄绪耕周旭华程琳
Owner CHINA PETROLEUM & CHEM CORP