Microalgae cultivation method

A microalgae culture and microalgae technology, applied in the field of effectively supplementing CO2 to improve the quality of microalgae culture, can solve the problems of large investment, unsatisfactory effect, cumbersome process, etc., to simplify the process flow, improve the supply effect, and reduce equipment investment Effect

Active Publication Date: 2012-01-11
CHINA PETROLEUM & CHEM CORP +1
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current literature for CO 2 Although both recharge and oxygen desorption processes are involved, in order to overcome the current CO 2 Replenishment and oxygen analysis are not ideal, the process is cumbersome, and the investment is too large. It is also necessary to control the CO in the process of microalgae cultivation. 2 Optimize the supply means, improve the carbon source supply of the cultivation system, and optimize the cultivation process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Microalgae cultivation method
  • Microalgae cultivation method
  • Microalgae cultivation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Such as figure 1 with 2 As shown, in the present invention, a liquid ring delivery pump is used for mixing and delivery of gas and liquid, and the liquid comes from the airlift bioreactor and circulates back to the bioreactor after passing through the liquid ring delivery pump. When the circulating liquid passes through the liquid ring delivery pump, a large amount of CO is dissolved 2 , and circulate back to the bioreactor after supplementing with appropriate amount of nutrients. The circulating liquid is taken from the bottom of the bioreactor and drawn out through the filter device, and the circulating liquid is circulated back to the upper part of the bioreactor.

[0019] The filter device installed at the outlet of the circulating liquid at the bottom of the bioreactor is a metal or plastic filter screen with a mesh size of 1 to 20 microns. At the same time, there is a back-blowing air path connected to the outside of the filter screen. The purpose is to back-fl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a microalgae cultivation method, which is characterized by adopting a lighting airlift bioreactor. The lighting airlift bioreactor internally comprises microalgae and a microalgae cultivation medium. Airlift, carbon dioxide (CO2) supply and oxygen (O2) resolution are realized through introducing CO2-contained gas, wherein the introduced CO2-contained gas is conveyed by adopting a gas-liquid mixed conveying device; gas-liquid separation is carried out after the CO2-contained gas passes through the gas-liquid mixed conveying device; a gas phase obtained after the gas-liquid separation is ended is used as an airlift gas source of the airlift bioreactor; a liquid phase obtained after the gas-liquid separation is ended enters the airlift bioreactor to further supply theCO2; and the liquid phase of the inlet of the gas-liquid mixed conveying device comes from the airlift bioreactor. Compared with the prior art, in the microalgae cultivation method disclosed by the invention, the CO2 is supplied simultaneously through the gas phase and the liquid phase, thereby, the capacity of the microalgae for accumulating the grease in the microalgae cultivation process is improved, the CO2 use ratio is improved, and simultaneously, a cultivation device is simplified.

Description

technical field [0001] The invention belongs to the field of microalgae biotechnology, and in particular relates to a method of effectively supplementing CO in the process of cultivating microalgae in a photobioreactor. 2 A method for improving the quality of microalgae culture. Background technique [0002] Microalgae are rich in nutrients such as protein, polysaccharides, and unsaturated fatty acids (such as spirulina), which can be used in food, medicine, and energy; they can accumulate fatty acids in large quantities. Some microalgae, such as chlorella, can account for 100% of the fatty acid content in the body. 30% to 60% of the weight. The use of microalgae to accumulate oil resources has become the most popular research field in the development of renewable resources using solar energy. Not only has strong market potential, but also has extraordinary social value. [0003] There are two types of microalgae cultivation methods: closed type and open type. The open ty...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/12C12R1/89
Inventor 王领民金平师文静李晓姝王崇辉
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap