High-temperature high-pressure autoclave and using method thereof

A high-temperature, high-pressure, kettle-body technology, applied in pressure vessels used in chemical processes, solid solvent extraction, etc., can solve the problems of decreased yield of the target product and inability to ensure material separation, and achieves simple equipment, easy operation control, and stable operation. Effect

Inactive Publication Date: 2012-07-18
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The high-temperature and high-temperature autoclaves used in the existing coal solvothermal extraction technology all adopt a method of opening a discharge port at the bottom of the kettle body, and then transfer the reacted materials to a separate separation and receiving device, so that there is no guarantee Material separation at the operating temperature of hot extraction, resulting in a decrease in the yield of the desired product

Method used

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  • High-temperature high-pressure autoclave and using method thereof
  • High-temperature high-pressure autoclave and using method thereof
  • High-temperature high-pressure autoclave and using method thereof

Examples

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Effect test

Embodiment 1

[0051] Use this high-temperature and high-pressure autoclave to carry out thermal extraction on coal. Take 300g of dry coal particles with a particle size of ≤200μm and dry them at 100°C for 96 hours. According to the ratio of mass to volume, the ratio of coal particles to solvent is 1:2. Add 600ml of N-methylpyrrolidone, mix them thoroughly, and remove Add the raw material inlet 6 on the cover 2 into the high-temperature autoclave, replace the air in the high-pressure reactor with nitrogen and fill it with nitrogen to 5MPa, keep the pressure in the kettle constant within 30min, then release the nitrogen, and then fill it with nitrogen to 5MPa, Rapidly raise the temperature to 450° C. under stirring at a rotation speed of 600 rpm, and keep the temperature constant for 4 hours. After the extraction is finished, quickly open the valve on the material filter discharge device 16, use the pressure difference between the interior of the high-temperature autoclave and the receiving d...

Embodiment 2

[0053] Use this high-temperature and high-pressure autoclave to carry out thermal extraction on coal. Take 50g of dry coal particles with a particle size of ≤200μm and dry them at 150°C for 12 hours. According to the ratio of mass to volume, the ratio of coal particles to solvent is 1:12, add 600ml of 1-methylnaphthalene, and mix them thoroughly. Add the raw material inlet 6 on the kettle cover 2 into the high-temperature autoclave, replace the air in the high-pressure reactor with nitrogen and fill it with nitrogen to 5MPa, keep the pressure in the kettle constant within 30min, then release the nitrogen, and then fill it with nitrogen to 0MPa , the temperature was rapidly raised to 300°C under stirring at a rotation speed of 100 rpm, and kept at a constant temperature for 0.5 hours. After the extraction is finished, quickly open the valve on the material filter discharge device 16, use the pressure difference between the interior of the high-temperature autoclave and the rece...

Embodiment 3

[0055] Use this high-temperature and high-pressure autoclave to carry out thermal extraction on coal. Take 100g of dry coal particles with a particle size of ≤200μm and dry them at 120°C for 48 hours. According to the ratio of mass to volume, the ratio of coal particles to solvent is 1:7, add 700ml of industrial-grade national standard washing oil, and mix them thoroughly. Add the raw material inlet 6 on the kettle cover 2 into the high-temperature autoclave, replace the air in the high-pressure reactor with nitrogen and fill it with nitrogen to 5MPa, keep the pressure in the kettle constant within 30min, then release the nitrogen, and then fill it with nitrogen to 1MPa , the temperature was rapidly raised to 380° C. under stirring at a rotation speed of 400 rpm, and kept at a constant temperature for 1 hour. After the extraction is finished, quickly open the valve on the material filter discharge device 16, use the pressure difference between the interior of the high-temperat...

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Abstract

The invention relates to a high-temperature high-pressure autoclave and a using method thereof, which are used for a reaction process when gas phase, liquid phase and solid phase exist simultaneously, especially for a process of requiring filtering solid particles after reaction. The reaction autoclave can be operated and used under high-temperature high-pressure conditions, achieves direct feeding, hot filtering and discharging solid matter on the premise of not opening an autoclave body, cleans a filter element through nitrogen blowback and ensures continuous equipment operation. The reaction autoclave has the advantages of being high in equipment integration degree and easy to operate and is especially suitable for a hot extraction process under high-temperature high-pressure conditions.

Description

technical field [0001] The invention belongs to the field of chemical equipment and technology, and in particular relates to a high-temperature autoclave and a using method thereof. The high-temperature and high-pressure kettle of the present invention can be used in a reaction process in which three phases of gas, liquid or solid exist simultaneously, and is especially suitable for a thermal extraction process involving the separation of solid residues under high temperature and high pressure. Background technique [0002] At present, solvent extraction of coal is one of the main contents of coal chemical research, and its research not only has important theoretical significance, but also has practical application value. As early as the beginning of the 20th century, people tried to separate the caking components from coking coal by solvent extraction. Subsequently, a large number of research work turned to clarify the structure of coal by studying solvent extracts, study ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J3/04B01D11/02
Inventor 崔咏梅赵风云胡永其袁中凯张兆翔
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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