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Reaction system for cultivating microalgae and preparing bioenergy

A bioenergy and reaction system technology, applied in the field of bioengineering and clean energy, can solve the problems of environmental constraints, high cost, long growth cycle, etc., and achieve the effect of continuous preparation, low cost and high utilization rate

Active Publication Date: 2010-06-23
ENN SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the preparation of biodiesel mostly uses raw materials such as oil plants, food crops, and waste oil, which has the characteristics of high cost, long growth cycle and environmental restrictions.

Method used

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  • Reaction system for cultivating microalgae and preparing bioenergy
  • Reaction system for cultivating microalgae and preparing bioenergy
  • Reaction system for cultivating microalgae and preparing bioenergy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: Utilize annular tubular photoreactor to cultivate microalgae

[0038] Add the prepared medium into the filtrate storage tank (10), and press the medium from the filtrate storage tank (10) into the algae liquid collection tank (1) by using the gravity difference. Turn on the algae liquid delivery pump (2), pump the culture medium through the outlet 1 (3) of the algae liquid delivery pump to the glass photoreactor (4), and finally flow back to the algae through the upper port 1 (5) of the algae liquid collection tank. liquid collection tank (1). Then the algae liquid is inserted into the culture medium through the algae liquid collection tank (1). CO 2 The gas is stored in the gas storage tank (6) and passed into the pipeline of the photoreactor through the vent pipe (7).

Embodiment 2

[0039] Example 2: Collection of microalgae from photoreactors

[0040]When collecting microalgae, close the outlet 1 (3) of the algae liquid delivery pump, open the outlet 2 (8) of the algae liquid delivery pump, and pump the algae liquid into the plate and frame filter (9), the algae mud remains on the filter paper, and the remaining medium Pump into the filtrate storage tank (10) for supplementation of culture medium or re-cultivation. The algae mud on the filter paper was collected for the production of bioenergy. Among them, the plate and frame filter is produced by Shanghai Dazhang Filter Equipment Co., Ltd., and the model is BMY5 / 450-30U.

Embodiment 3

[0041] Embodiment 3: the preparation of biodiesel

[0042] The algae mud is put into the extraction tank (12), and the solvent oil is pressed into the extraction tank (12) from the solvent oil storage tank (25) by nitrogen. Solvent oil is one or a mixture of commonly used n-hexane or n-pentane. After stirring for 30-100 minutes, put all the materials into the extraction and separation tank (13), and after standing for 10-30 minutes, the materials are divided into two layers, and the upper layer of materials is put into the extraction distillation tank (14) through the side port of the extraction and separation tank (23). middle. Control the temperature of extraction still (14) and keep on 60~70 ℃. The solvent oil that distills out flows back to solvent oil storage tank (25) by pipeline. After the distillation is completed, what is obtained by passing the material in the distillation kettle through the oil cooler (15) is microalgae oil.

[0043] Put the microalgae oil into ...

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Abstract

The invention provides a reaction system for cultivating microalgae and preparing bioenergy, which comprises a microalgae cultivation system and a bioenergy preparation system, in particular to an algae suspension collecting tank (1), an algae suspension delivery pump (2), a photoreactor (4), a gas storage tank (6), a plate frame filter (9), a filtrate storage tank (10), an extraction tank (12), an extraction separating tank (13), an extraction distilling still (14), a grease cooler (15), an ester exchange reaction kettle (16), an ester exchange cooler (17), an ester exchange separating tank (18), an ester exchange distilling still (19), a finished product cooler (20), a fermentation tank (21), a gas collecting tank (22), a solvent oil storage tank (25), a methanol storage tank (26) and the like. The reaction system integrates an algae photoreactor, a collecting device, an oil extraction device, an esterification device and a fermentation device into a whole, realizes the continuousness of raw material oil production and bioenergy preparation and has compact structure, high utilization rate and low cost.

Description

technical field [0001] The invention belongs to the fields of bioengineering and clean energy, relates to a large-scale photoreactor for cultivating microalgae and equipment for preparing bioenergy by using microalgae oil, and is a complete system for cultivating microalgae and producing biodiesel. Background technique [0002] At present, the preparation of biodiesel mostly uses raw materials such as oil plants, food crops, and waste oil, which has the characteristics of high cost, long growth cycle and environmental restrictions. The use of algae as a material for the preparation of biodiesel has the advantages of high photosynthetic efficiency, strong environmental adaptability, short growth cycle, and high biological yield. [0003] The large-scale cultivation of microalgae is mainly carried out in reactors, and the types are mostly open track pool type and closed tube type, or the transformation and extension on this basis. The method commonly used in the biodiesel ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/107C12M1/02
CPCY02E50/343C12M21/02C12M21/04C12M27/10C12M41/18C12M43/02C12M47/18
Inventor 石蕾张惠敏王慧岭马卫敬陈伟刘敏胜
Owner ENN SCI & TECH DEV
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