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Method for preparing biodiesel by taking algae as raw materials

A biodiesel and raw material technology, applied in biofuel, fuel, petroleum industry, etc., can solve the problems of low biodiesel yield, low catalytic efficiency, long reaction time, etc., achieve strong environmental adaptability, improve catalytic efficiency, and improve the reaction interface big effect

Active Publication Date: 2017-01-04
黄艳红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing biodiesel production process generally has the following problems: low catalytic efficiency, low biodiesel yield, long reaction time, corrosion equipment, complex process, high energy consumption, high cost, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Preparation of Pavlova green medium: glucose 25mg / L, NaNO 3 2.0mg / L, KH 2 PO 4 1.2mg / L, Na 2 SiO 3 0.8mg / L, chitosan 1.0mg / L, biogas slurry 7mg / L, f2 vitamin 3mL and seawater 1L;

[0027] A method for preparing biodiesel from algae plants, comprising the following steps:

[0028] S1. Cultivation of Pavlova green: use Pavlova green as raw material, inoculate the culture medium at an inoculation density of 3.5 million cells / mL, and irradiate with red and blue LED supplementary light for 10 hours / day, in which the red light and The ratio of blue light is 1:1, the light intensity is controlled at 5000LX, the culture temperature is controlled at 25°C, cultured for 10 days, the density of Pavlova greens reaches 80 million cells / mL, and the cells of Pavlova greens are collected;

[0029] S2. Grease extraction: After the green Pavlova cells collected in step S1 are concentrated and dried, they are added to a high-speed ball mill and crushed for 15 minutes at a speed of 800...

Embodiment 2

[0034] Preparation of Pavlova green medium: Glucose 28mg / L, NaNO 3 1.8mg / L, KH 2 PO 4 1.4mg / L, Na 2 SiO 3 0.9mg / L, chitosan 1.2mg / L, biogas slurry 10mg / L, f2 vitamin 4mL and seawater 1L;

[0035] A method for preparing biodiesel from algae plants, comprising the following steps:

[0036]S1. Cultivation of Pavlova green: use Pavlova green as raw material, inoculate it into the culture medium at an inoculation density of 3 million cells / mL, and irradiate it with red and blue LED supplementary light for 16h / day, in which red light and blue light The ratio is 2:1, the light intensity is controlled at 4500LX, the culture temperature is controlled at 26°C, cultured for 8 days, the density of Pavlova greens reaches 80 million cells / mL, and the cells of Pavlova greens are collected;

[0037] S2. Grease extraction: After the green Pavlova cells collected in step S1 were concentrated and dried, they were added to a high-speed ball mill and crushed at a speed of 900r / min for 13 minu...

Embodiment 3

[0042] Preparation of Pavlova green medium: glucose 30mg / L, NaNO 3 1.6mg / L, KH 2 PO 4 1.5mg / L, Na 2 SiO 3 1.0mg / L, chitosan 1.4mg / L, biogas slurry 9mg / L, f2 vitamin 3mL and seawater 1L;

[0043] A method for preparing biodiesel from algae plants, comprising the following steps:

[0044] S1. Cultivation of Pavlova green: use Pavlova green as raw material, inoculate the culture medium at an inoculation density of 2.5 million cells / mL, and irradiate with red and blue LED supplementary light for 12 hours / day, in which red light and blue light The ratio is 1:1, the light intensity is controlled at 4000LX, the culture temperature is controlled at 27°C, cultured for 10 days, the density of Pavlova greens reaches 80 million cells / mL, and the cells of Pavlova greens are collected;

[0045] S2. Grease extraction: After the green Pavlova cells collected in step S1 are concentrated and dried, they are added to a high-speed ball mill and crushed at a speed of 1000r / min for 10 minutes ...

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Abstract

The invention discloses a method for preparing biodiesel by taking algae as raw materials. The method comprises the following steps that a culture medium is inoculated with pavlova viridis, irradiation is conducted through a red and blue LED fill light for 10 h / d to 16 h / d, culturing is conducted for 8 d to 10 d at the temperature of 25 DEG C to 27 DEG C, and then pavlova viridis cells can be collected; the collected pavlova viridis cells are added into a high-speed ball mill to be crushed and then extracted with an organic solvent to obtain microalgal oil, 1 part by weight of microalgal oil, 5-7 parts by weight of methanol and 0.03-0.05 part by weight of zeolite molecular sieve catalyst are added into a reactor to generate an esterification reaction, esterification products are obtained and then separated and purified, and the biodiesel is obtained. According to the method, by taking the pavlova viridis which is short in production cycle, wide in distribution, high in photosynthesis and high in oil content as the raw material, the problems existing in vegetable oil raw materials in boidiesel development are solved. Meanwhile, the method further has the advantages of being simple in preparation technolog, high in catalytic efficiency, high in oil extraction ratio, high in product yield and the like, and a good foundation is laid for industrialization and large scale of the biodiesel.

Description

technical field [0001] The invention belongs to the technical field of biomass energy, in particular to a method for preparing biodiesel from algae plants. Background technique [0002] With the increasing depletion of fossil fuels and the sharp rise in oil prices, the search for renewable energy has become a solution to human survival and to maintain the sustainable development of the world economy. As a new alternative energy, biodiesel is developing rapidly in countries all over the world. Biodiesel refers to oil crops such as soybeans, rapeseed, cotton, palm, etc., wild oil plants and engineering microalgae and other aquatic vegetable oils, animal fats, and catering waste oils, etc. Renewable diesel fuel to replace petrodiesel. The advantages of biodiesel are not limited to renewability. Compared with existing diesel, it also has the following advantages: high cetane number, which makes the combustion performance better; better wetting performance, which makes the fuel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/02C11B1/02C11B3/12C11C3/10
CPCC10L1/02C11B1/025C11B3/12C11C3/10Y02E50/10
Inventor 黄健峻其他发明人请求不公开姓名
Owner 黄艳红
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