Pyrolysis device and pyrolysis system and pyrolysis method for coal and biological carbonaceous raw materials

A technology of biochar and pyrolysis, which is applied in the direction of indirect heating dry distillation, special form dry distillation, petroleum industry, etc., can solve the problems of increasing dust removal equipment and operating costs, low hardness of solid particles, high dust content of tar, etc., to improve the actual The effect of reaction flux, low degree of fragmentation and high calorific value

Inactive Publication Date: 2021-05-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some processes adopt the method of fluidized bed pyrolysis, but some solid particles have low hardness and are easily broken during the fluidization process, which not only easily leads to fluidization instability, but also has a large amount of fly ash, resulting in tar dust. High volume also increases the cost of dust removal equipment and operation

Method used

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  • Pyrolysis device and pyrolysis system and pyrolysis method for coal and biological carbonaceous raw materials
  • Pyrolysis device and pyrolysis system and pyrolysis method for coal and biological carbonaceous raw materials
  • Pyrolysis device and pyrolysis system and pyrolysis method for coal and biological carbonaceous raw materials

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Embodiment approach

[0055] According to a preferred embodiment of the present invention, the conical surface of the conical disperser 513 has staggered openings, the preferred opening diameter is 20-50mm, and the distribution plate 514 is a wire mesh or a grid, and the wire mesh or The grid can make the material fall into the pyrolysis section 53 more evenly, and the staggered holes on the conical disperser 513 can effectively make the material evenly disperse and fall into the pyrolysis section, so that the solid material can fully react in the pyrolysis section 53, significantly Improve the pyrolysis efficiency of the pyrolysis section 53.

[0056] According to a preferred embodiment of the present invention, the reactor body 51 is a straight tube, and the heat exchange tube 517 is a round tube with fins, wherein the diameter of the heat exchange tube 517 is 200-400 mm, and the heat exchange tube 517 The distance between them is 400-700 mm, and the distance between the heat exchange tube 517 on...

Embodiment 1

[0085] use figure 1 with figure 2 The pyrolysis apparatus shown, according to image 3 The process shown is carried out, and the industrial analysis and elemental analysis of the required coal samples are shown in Table 1. The crushing unit 10 crushes the raw materials to 40-80 meshes, the pyrolysis reaction temperature is 600° C., and the feeding amount of the selected raw materials is 100 t / h. The selected reaction atmosphere is water vapor with a superficial gas velocity of 0.1 m / s. The high-temperature medium is the high-temperature synthesis gas from the gasifier, and the temperature of the synthesis gas is 900°C.

[0086] Table 1 Industrial analysis and elemental analysis of coal samples (ad)

[0087]

[0088]

[0089] After the reaction, the semi-coke bin 60 at the bottom of the pyrolysis reactor body 51 can obtain 60.3t / h of semi-coke, and the semi-coke breakage rate is 8.44%. gas9830m 3 / h.

Embodiment 2

[0091] use figure 1 with figure 2 The pyrolysis apparatus shown, according to Figure 4 The process shown is carried out, and the industrial analysis and elemental analysis of the required biomass are shown in Table 2. The crushing unit 10 crushes the biomass to 40-80 meshes, the pyrolysis reaction temperature is 600° C., and the feed rate of the selected raw materials is 10 t / h. The selected reaction atmosphere is N 2 , the superficial gas velocity is 0.1m / s. The high-temperature medium is the high-temperature flue gas generated by the combustion furnace, and the temperature of the flue gas is 800°C.

[0092] Table 2 Industrial analysis and elemental analysis of biomass (d)

[0093]

[0094] After the reaction, the semi-coke bin 60 at the bottom of the pyrolysis reactor body 50 can obtain 2.79t / h of semi-coke, and the semi-coke breakage rate is 15.73%. Degassing 1034.6m 3 / h.

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Abstract

The invention provides a carbonaceous raw material pyrolysis device, a pyrolysis system and a pyrolysis method.The carbonaceous raw material pyrolysis device comprises a reactor body and a collection section, and the reactor body comprises a feeding section, a pyrolysis section and a collection section which are communicated from top to bottom; the feeding section comprises a feeding opening, a conical disperser, a material distribution plate and a pyrolysis oil gas outlet from top to bottom, the conical disperser and the material distribution plate are fixed to the inner wall of the reactor body, the pyrolysis oil gas outlet is formed in the side wall of the reactor body, and the pyrolysis section comprises multiple layers of heat exchange pipes which are arranged in the reactor body and are arranged in a criss-cross mode; and the collection section is fixed at the bottom of the reaction body. By adopting the pyrolytic reaction device disclosed by the invention, the flux of reaction materials in the reaction device is improved, the particle crushing degree and the dust amount are reduced, and the treatment cost is reduced.

Description

technical field [0001] The invention relates to the field of pyrolysis of carbonaceous raw materials, in particular to a pyrolysis device, including a pyrolysis device, a coal pyrolysis system and method of the pyrolysis device, and a pyrolysis system and method for biological carbonaceous raw materials . Background technique [0002] my country's energy structure is characterized by rich coal, poor oil, and little gas. According to the "Blue Book of China's Oil and Gas Industry Development Analysis and Prospect Report (2018-2019)", China's crude oil processing volume and apparent oil consumption both exceeded 600 million tons in 2018, and its dependence on foreign oil approached 70%. Converting carbonaceous raw material resources such as biomass, oil shale, and coal with relatively abundant reserves into oil and gas resources is one of the important ways to solve the high dependence on foreign crude oil. Its conditional reaction is relatively mild, and tar is suitable for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/04C10B57/10C10B47/00
CPCC10B53/04C10B57/10C10B47/00
Inventor 邹亮王卫平王鹏飞
Owner CHINA PETROLEUM & CHEM CORP
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