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A method for improving the lubricity of bio-oil

A bio-oil and lubricity technology, applied in the petroleum industry, processing hydrocarbon oil, liquid carbon-containing fuel, etc., can solve the problems of dispersibility, compatibility, stability, bio-oil and diesel components Large difference, complex composition of bio-oil and other problems, to achieve the effect of easy scale promotion, long stability time and good lifting effect

Active Publication Date: 2016-09-07
黄山市开发投资集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large difference between bio-oil and diesel components, these methods for improving the lubricity of diesel are difficult to work on bio-oil
Although the lubricity of bio-oil can be improved by adding some lubricants in bio-oil, the dispersibility, compatibility and stability of these additives in bio-oil have not been well resolved due to the complex composition of bio-oil. To solve, therefore, it is necessary to develop a new method to improve the lubricity of bio-oil

Method used

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  • A method for improving the lubricity of bio-oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Add 50mg KF-Ni / ZSM-5 and 10g 1,6-hexanediol to 1kg bio-oil in turn, stir evenly, place it in a pressure reactor, stir at 120°C for 45min, heat up to 320°C and stir Reaction for 30min, after cooling, filtration and centrifugation to remove the catalyst and water phase to obtain modified bio-oil; the modified bio-oil was moved to a vacuum distillation system, reacted at 50°C, 0.8kPa vacuum distillation for 12h, and purified in a collection bottle Bio-oil; 50mg Fe with a particle size of 80-800nm ​​with a mass ratio of 1:0.2 was added to the refined bio-oil 3 O 4 @MoS 2 Nanospheres and MoS with a particle size of 1~10μm 2 The mixture of microchips and the mass ratio of 10 mg are the mixture of glyceryl monostearate and Tween 80 at a mass ratio of 1:0.5. After ultrasonic dispersion for 10 minutes, high-speed shear stirring at 20,000 rpm for 20 minutes is sufficient.

Embodiment 2

[0019] Add 100mg KF-Ni / ZSM-5 and 20g 1,8-octanediol to 1kg bio-oil in turn, stir evenly, place in a pressure reactor, stir at 130°C for 40min, heat up to 350°C and stir Reaction for 20min, after cooling, filtration and centrifugation to remove the catalyst and water phase to obtain modified bio-oil; the modified bio-oil was moved to the vacuum distillation system, reacted at 50°C, 0.6kPa vacuum distillation for 12h, and the purified bio-oil was collected in a receiving bottle Bio-oil; 80mg Fe with a particle size of 80-800nm ​​in a mass ratio of 1:1 was added to the refined bio-oil 3 O 4 @MoS 2 Nanospheres and MoS with a particle size of 1~10μm 2 The mixture of microchips and the mass ratio of 20 mg are a mixture of glycerol monostearate and Tween 80 at a mass ratio of 1:2. After ultrasonic dispersion for 15 minutes, high-speed shearing and stirring at 22000 rpm for 30 minutes is sufficient.

Embodiment 3

[0021] Add 200mg KF-Ni / ZSM-5 and 100g 1,9-nonanediol to 1kg bio-oil in turn, stir evenly, place in a pressure reactor, stir at 150°C for 60min, heat up to 380°C and stir Reaction for 30min, after cooling, filtration and centrifugation to remove the catalyst and water phase to obtain modified bio-oil; the modified bio-oil was moved to a vacuum distillation system, reacted at 60°C, 1kPa vacuum distillation for 20h, and the purified bio-oil was collected in a receiving bottle Oil; 200mg Fe with a particle size of 80-800nm ​​in a mass ratio of 1:1 was added to the refined bio-oil 3 O 4 @MoS 2 Nanospheres and MoS with a particle size of 1~10μm 2 The mixture of microchips and 70 mg mass ratio is a mixture of glycerol monostearate and Tween 80 at a mass ratio of 1:1. After ultrasonic dispersion for 20 minutes, high-speed shear stirring at 22000 rpm for 20 minutes is sufficient.

[0022] The performances of the bio-oil before and after upgrading are shown in Table 1, from which it ...

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Abstract

The invention discloses a method for improving bio-oil lubricity. The method comprises 3 operation units of modification, refining and dispersion. First, a catalyst and a modifying agent are added into a pressure reactor, such that modified bio-oil is prepared; the modified bio-oil is subjected to a reduced-pressure distillation reaction, such that refined bio-oil is obtained; a lubrication enhancing agent and a dispersing agent are added into the refined bio-oil, and the mixture is well dispersed through ultrasonic dispersion; and high-speed shear agitation is carried out, such that bio-oil lubricity is improved. The method provided by the invention is easy to operate, and is suitable for large-scale productions. With the method, bio-oil lubricity can be substantially improved. The upgraded bio-oil can form a continuous oil film on a friction interface; and friction pair friction coefficient and wear amount can be reduced by higher than 40%. The method has a good application prospect.

Description

1. Technical field [0001] The invention relates to the field of biomass energy, in particular to a method for improving the lubricity of biological oil. 2. Background technology [0002] Bio-oil is a new type of liquid energy prepared from various biomass through pyrolysis and liquefaction. It has obvious advantages such as renewable and zero net carbon emissions. However, due to the complex composition of bio-oil, one of the key problems is that bio-oil has poor film-forming performance on metal surfaces and insufficient lubricity, which seriously affects the normal operation of some typical mechanical components such as engine fuel injectors, rotary pumps, distribution pumps, etc. , resulting in its limited application in automobile engines, therefore, the lubricity of bio-oil needs to be improved urgently to accelerate the application of this new energy source in automobiles. [0003] At present, the method of improving the lubricity of bio-oil mainly adopts blending wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G57/00C10L1/04C10L1/12C10L1/19C10L1/198C10L10/08
Inventor 徐玉福彭玉斌郑晓静何红波胡献国
Owner 黄山市开发投资集团有限公司