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Pyrolysis system and pyrolyzing method

A pyrolysis and pyrolysis furnace technology, applied in the pyrolysis system and the field of pyrolysis, can solve problems that are rarely mentioned, and achieve the effects of improving the uniformity of heating, improving the efficiency and degree of pyrolysis, and increasing the contact area.

Active Publication Date: 2015-04-29
SHENWU TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the gas heating pyrolysis technology, high-temperature flue gas is often used as a heating carrier to directly enter the pyrolysis furnace and pass through the material layer to realize heat transfer. There are few technologies for the product pyrolysis gas to be reused in the pyrolysis process as a gas heating carrier mention

Method used

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  • Pyrolysis system and pyrolyzing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Coal samples with a particle size of 5 mm to 30 mm (see Table 1 for coal quality analysis data) are continuously fed into the rotary bed pyrolysis furnace at a rate of 3 t / h, and are directly contacted with non-condensable gas at a temperature of about 580 ° C to exchange heat and generate heat. Solution, heating the coal block to 530°C to generate hot semi-coke, tar steam and gas, the obtained hot semi-coke at a temperature of about 500°C enters the cooling system for cooling to recover heat, and the cooled semi-coke is sent to the storage bin. The temperature of the generated oil gas mixed with the heating non-condensable gas is about 520°C, and it is led out of the rotary bed pyrolysis furnace through multiple oil and gas outlets on the top of the rotary bed pyrolysis furnace. The oil and gas outlet positions are different, and the outlet oil gas temperature has a certain difference. The oil and gas from each oil and gas outlet are combined through the oil and gas mai...

Embodiment 2

[0083] The coal sample used in this example with a raw coal particle size of 5 mm to 30 mm is continuously fed into the rotary bed pyrolysis furnace at 2.6 t / h, and is in direct contact with non-condensable gas at a temperature of about 650 ° C to exchange heat and generate heat. Solution, heating the coal block to 600°C to generate hot semi-coke, tar steam and gas, the obtained hot semi-coke is about 580°C and enters the cooling system for cooling to recover heat, and the cooled semi-coke is sent to the storage bin. The temperature of the generated oil gas mixed with the heating non-condensable gas is about 590°C, and it is led out of the rotary bed pyrolysis furnace through multiple oil and gas outlets on the top of the rotary bed pyrolysis furnace. The oil and gas outlet positions are different, and the outlet oil gas temperature has a certain difference. The oil and gas from each oil and gas outlet are combined through the oil and gas main pipe and then enter the cooling an...

Embodiment 3

[0087] Autumn domestic garbage in a certain area with a particle size of 5 mm to 120 mm is continuously fed into the rotating bed at a rate of 1.3 t / h, directly contacts with non-condensable gas at a temperature of about 800 °C for heat exchange, and pyrolyzes at 700 °C to generate thermal solids Carbon-containing matter, tar vapor and combustible gas, the temperature of the obtained hot solid carbon-containing matter is about 680°C, enters the cooling system to cool and recover heat, and the cooled solid carbon-containing matter is sent to the storage bin. The mixture of oil gas and heating non-condensable gas is drawn out of the rotating bed through multiple oil and gas outlets on the top of the rotating bed. The temperature of the high-temperature oil and gas mixed with the non-condensable gas is 690°C, and the oil and gas from each oil and gas outlet are combined into cooling through the oil and gas main pipe. and purification system.

[0088] The moisture content of domes...

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Abstract

The invention provides a pyrolyzing system and a pyrolyzing method. The pyrolyzing system comprises a rotary-bed pyrolyzing furnace, a pyrolyzing solid treatment device, a cooling and purifying device, an oil storage tank and a regenerative rotary heat exchanger, wherein the rotary-bed pyrolyzing furnace is used for pyrolyzing a pyrolyzing raw material; a rotary material dispensing plate for placing the pyrolyzing raw material is arranged inside the rotary-bed pyrolyzing furnace; the material dispensing plate divides the interior of the rotary-bed pyrolyzing furnace into a pyrolyzing chamber above the material dispensing plate and a heating chamber below the material dispensing plate; a plurality of through holes which are communicated with the pyrolyzing chamber and the heating chamber are formed in the material dispensing plate; the heating chamber is provided with a heat inlet; the pyrolyzing chamber is provided with a feed port, a gas outlet and a solid outlet; the regenerative rotary heat exchanger is connected with the cooling and purifying device and the heat inlet of the rotary-bed pyrolyzing furnace respectively, and is used for heating incondensable gas and pyrolyzing the incondensable gas. Due to adoption of the pyrolyzing system provided by the embodiment of the invention, the pyrolyzing efficiency and the pyrolyzing degree of the pyrolyzing material can be significantly improved.

Description

technical field [0001] The invention relates to the field of pyrolysis, in particular, the invention relates to a pyrolysis system and a pyrolysis method. Background technique [0002] Pyrolysis technology is to heat organic matter to 500-1000°C in the absence of oxygen or oxygen, so that solid carbonaceous matter (coal, biomass, garbage, waste tires, waste organic matter, organic sludge, etc.) Gas (pyrolysis gas), fuel oil and pyrolysis carbon are the main storage energy sources. In the gas heating pyrolysis technology, high-temperature flue gas is often used as a heating carrier to directly enter the pyrolysis furnace and pass through the material layer to realize heat transfer. There are few technologies for the product pyrolysis gas to be reused in the pyrolysis process as a gas heating carrier mentioned. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, an...

Claims

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Application Information

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IPC IPC(8): C10B53/00C10B49/04C10B57/00C10G1/00
CPCC10B49/04C10G1/00
Inventor 吴道洪吴小飞肖磊
Owner SHENWU TECH GRP CO LTD
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