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Application of an ultrasonic wave in the dehydration of biomass tar

A technology of tar dehydration and ultrasonic wave, which is applied in the application of ultrasonic wave in the dehydration of biomass tar, and the field of removing most of the water contained in the biomass tar, can solve the problem of difficult water removal work, long dehydration time and energy consumption. High problems, to achieve the effect of good dehydration effect, high water removal rate and low energy consumption

Inactive Publication Date: 2011-11-30
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are long dehydration time, high energy consumption and low efficiency
The water content of biomass tar is higher than that of coal tar, and the work of water removal is more difficult. However, there are few reports on the dehydration of biomass tar, especially the application of ultrasound in the dehydration of biomass tar.

Method used

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  • Application of an ultrasonic wave in the dehydration of biomass tar
  • Application of an ultrasonic wave in the dehydration of biomass tar
  • Application of an ultrasonic wave in the dehydration of biomass tar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Sampling, weighing 42.00g, 42.80g, 41.22g, 41.55g and 41.79g of biomass pyrolysis tar with a water content of 39% successively, and loading number 1 respectively # ,2 # , 3 # , 4 # , 5 # 100ml graduated cylinder. At a temperature of 30°C, the 1 # Put the measuring cylinder vertically into the ultrasonic generating device, continue ultrasonication for 35 minutes, then take it out and let it stand for separation; raise the temperature to 35°C, put 2 # Put the measuring cylinder vertically into the ultrasonic generating device, continue ultrasonication for 23 minutes, then take it out and let it stand for separation; raise the temperature to 45°C, # Put the measuring cylinder vertically into the ultrasonic generating device, continue ultrasonication for 17 minutes, then take it out and let it stand for separation; raise the temperature to 50°C, # Put the measuring cylinder vertically into the ultrasonic generating device, continue ultrasonication for 12 minutes, then...

Embodiment 2

[0017] Sampling, weigh 40.08g, 41.76g, 43.52g, 42.55g and 42.09g of biomass carbonized tar with a water content of 24.8% in sequence, and load them into 1 # ,2 # , 3 # , 4 # and 5 # 100ml graduated cylinder. At a temperature of 30°C, the 1 # Put the measuring cylinder vertically into the ultrasonic generating device, continue ultrasonication for 24 minutes, then take it out and let it stand for separation; raise the temperature to 35°C, # Put the measuring cylinder vertically into the ultrasonic generating device, continue ultrasonication for 18 minutes, then take it out and let it stand for separation; raise the temperature to 45°C, and # Put the measuring cylinder vertically into the ultrasonic generating device, continue ultrasonication for 13 minutes, then take it out and let it stand for separation; raise the temperature to 50°C, # Put the cylinder axially vertically into the ultrasonic generator, continue ultrasonication for 10 minutes, then take it out and let it ...

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Abstract

The invention relates to the application of ultrasonic waves in the dehydration of biomass tar. This application method mainly includes sampling, weighing, sample loading, ultrasonication, separation and other processes. The obtained components enter the later stage of resource utilization. The frequency range of ultrasonic waves is greater than 50KHz and less than 100KHz. The ultrasonic intensity is greater than 0.5w / cm2 and the ultrasonic temperature is 20 -55°C, ultrasonic time is 15-60 minutes. With the help of ultrasonic penetration and cavitation effect, the present invention breaks the emulsion state of water in tar, so that water and organic components of tar can be efficiently and clearly separated, and then separated by standing, the water content of biomass tar is reduced from the original 20-50% of the tar is reduced to less than 10%, laying a good foundation for the later application of biomass tar resources. In addition, the ultrasonic instruments and other equipment used are low-power and low-energy-consuming equipment. Compared with other dehydration technologies, it achieves the goals of low energy consumption, high efficiency and large dehydration capacity.

Description

technical field [0001] The invention relates to the application of ultrasonic waves in the dehydration of biomass tar, in particular to the application of ultrasonic waves to remove most of the water contained in biomass tar by using the principle of ultrasonic waves, and belongs to the technical field of water-containing oil product water removal. Background technique [0002] Ultrasound is a high-frequency (>20000Hz) sound wave. It has good directionality and strong penetrating power. It is easy to obtain concentrated sound energy. It has a long distance in water and is easy to penetrate tiny gaps and small holes. There are many applications in military, industry, and agriculture. Recent studies have found that the application of ultrasonic waves to dehydration of tissue blocks (patent publication No. CN101241054A), sludge dehydration (patent publication No. CN1821130A) and enhanced osmotic dehydration of fruits and vegetables (patent publication No. CN1641300A) has rem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10C1/02
Inventor 吴诗勇宋菲菲吴幼青高晋生
Owner EAST CHINA UNIV OF SCI & TECH
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