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Biological oil emulsifying and separating method

A bio-oil and biomass raw material technology, applied in chemical instruments and methods, separation/purification of carboxylic acid compounds, lignin derivatives, etc., can solve the problem of large-scale application of bio-oil, affecting the service life of internal combustion engines, and moisture content Advanced problems, to achieve the effect of low cost, low equipment requirements, low acidity and moisture content

Inactive Publication Date: 2013-07-10
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the emulsified oil of bio-oil and diesel oil prepared by conventional methods often has a small amount of emulsification (the mass ratio of bio-oil to gasoline and diesel oil during emulsification is between 0.05 and 0.25), and poor stability (several hours to a few days at room temperature). Stratification), high moisture content, high acidity, high cost of emulsifiers (Tween, Span series, NP-4, OP-10, OT-10, etc.), it is difficult to achieve large-scale application of bio-oil
In addition, conventional bio-oil emulsification cannot realize the separation of bio-oil, and the existence of oligomers in bio-oil is not conducive to combustion, and at the same time affects the service life of internal combustion engines

Method used

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  • Biological oil emulsifying and separating method
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Examples

Experimental program
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Effect test

Embodiment 1

[0027] Weigh 1 part of bio-oil, 1 part of n-butanol and 1 part of 93# gasoline respectively in a closed container with a stopper, add a magnetic stirrer and fully stir at room temperature for 30 minutes, and leave to stand and separate to obtain the emulsified product. 61.82% of bio-oil components entered the emulsified oil layer. The lower layer was washed with water to obtain an aqueous solution mainly composed of lignin oligomers and acetic acid.

Embodiment 2

[0029] Weigh 1 part of bio-oil, 1 part of n-hexanol, and 1 part of 93# gasoline in a closed container with a stopper, add a magnetic stirrer, stir thoroughly at room temperature for 30 minutes, and leave to stand for separation to obtain the emulsified product. 58.13% of the bio-oil components entered the emulsified oil layer. The lower layer was washed with water to obtain an aqueous solution mainly composed of lignin oligomers and acetic acid.

Embodiment 3

[0031] Weigh 1 part of bio-oil, 1 part of n-hexanol and 1 part of 0# diesel oil in a closed container with a stopper, add a magnetic stirrer and fully stir at room temperature for 30 minutes, and leave to stand and separate to obtain the emulsified product. 39.64% of the bio-oil components entered the emulsified oil layer. The lower layer was washed with water to obtain an aqueous solution mainly composed of lignin oligomers and acetic acid.

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Abstract

The invention provides a biological oil emulsifying and separating method, which comprises the following steps of: fully mixing biological oil, 3 to 10 carbon alcohol and diesel oil or gasoline, and demixing the mixture to obtain an emulsifying oil layer, a lignin oligomer and an acetic acid enrichment phase. The method provided by the invention has large emulsifying amount and can realize effective emulsification and separation of the biological oil; the obtained products have high stability and low acidity; and the biological oil can be used in an internal-combustion engine.

Description

technical field [0001] The invention relates to the application field of bio-oil refining, in particular to a method for emulsifying and separating bio-oil. Background technique [0002] With the depletion of fossil energy such as oil and natural gas, the development of new alternative energy has become the focus of attention of all countries. Compared with fossil energy, biomass energy is renewable, with low sulfur and nitrogen content, and the combustion process will not increase the net content of carbon dioxide in the atmosphere, which can effectively reduce the greenhouse effect and air pollution. Therefore, the development and utilization of biomass energy is widely accepted. Attention has been paid to and a series of thermal cracking devices and technologies have been developed. [0003] Biomass rapid pyrolysis technology can quickly and efficiently obtain a large amount of liquid products (ie, bio-oil), so it is considered to be the most promising way to utilize bio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G21/12C10L1/32C07G1/00C07C53/08C07C51/48
Inventor 张颖阮仁祥朱锡锋郭庆祥
Owner UNIV OF SCI & TECH OF CHINA
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