Entrained-flow bed gasification furnace and gasification method of carbonaceous raw material

A technology of gasification furnace and entrained bed, applied in the direction of gasification device feeding tool, gasification process, gasification device details, etc., can solve the problems of low carbon conversion rate, high energy consumption, poor environmental protection, etc., and achieve improved thermal efficiency , the effect of increasing the conversion rate

Active Publication Date: 2020-05-01
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide an entrained-flow gasifier and gasification method for processing carbonaceous raw materials, so as to solve the problem of low carbon conversion rate and low energy consumption in the process of carbonaceous raw materials processing in the coal cascade conversion and co-production technology existing in the prior art. High consumption, poor environmental protection and other issues

Method used

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  • Entrained-flow bed gasification furnace and gasification method of carbonaceous raw material

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Embodiment 1

[0045] Using coal A as the third carbonaceous raw material, the analysis results of the coal A sample are shown in Table 1. Coal A is pyrolyzed using a solid heat carrier pyrolysis furnace, and the semi-coke produced by pyrolysis at 600°C is used as the first carbonaceous raw material, and its particle size ranges from 0.1 to 0.45mm. The analysis results of the first carbonaceous raw material As shown in table 2. Coal A is dried and crushed to obtain a second carbonaceous raw material whose particle size is less than or equal to 0.15mm.

[0046] The entrained-bed gasifier provided by the present invention comprises a first feeding system, a second feeding system, a vertical furnace body and a slag outlet. Among them, the first feeding system includes a feeding cylinder, a main feeding pipe and an auxiliary feeding pipe, the inner diameter ratio of the feeding cylinder and the vertical furnace body is 0.3:1, and the ratio of the feeding cylinder to the vertical furnace body T...

Embodiment 2

[0061] Coal A is also used as the third carbonaceous raw material. Coal A is partially gasified using a fluidized bed gasifier, and the gasification residue, that is, carbon-containing by-products, is used as the first carbonaceous raw material, and its particle size ranges from 0.1 to 0.45mm. The analysis results of the first carbonaceous raw material As shown in Table 4. Coal A is dried and crushed to obtain a second carbonaceous raw material whose particle size is less than or equal to 0.15mm.

[0062] The gasification reaction was carried out using the same entrained bed gasifier as in Example 1.

[0063] The feed temperature of the first carbonaceous raw material is 850°C, and enters the feed cylinder through the main feed pipe, and then enters the vertical furnace body. The feed temperature of the second carbonaceous raw material is 40°C, and enters the vertical furnace body from the burner. The mass ratio of the first carbonaceous raw material to the second carbonace...

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Abstract

The invention discloses an entrained-flow bed gasification furnace and a gasification method of a carbonaceous raw material. The entrained-flow bed gasification furnace comprises a first feeding system, a second feeding system, a vertical furnace body and a slag outlet, the first feeding system is used for feeding a first carbonaceous raw material, the second feeding system is used for feeding a second carbonaceous raw material, and at least one slag outlet used for discharging raw gas and liquid slag is formed in the lower portion of the vertical furnace body. According to the entrained-flowbed gasification furnace and the gasification method provided by the invention, the heat energy of fed carbonaceous raw material is reasonably utilized, and the conversion rate of the carbonaceous rawmaterial in the entrained-flow bed gasification furnace is also improved.

Description

technical field [0001] The invention relates to an entrained-bed gasification furnace and a gasification method, more specifically, an entrained-bed gasification furnace and a gasification method for processing carbonaceous raw materials. Background technique [0002] Coal pyrolysis can produce semi-coke, coal tar and gas, but pyrolysis requires external heating energy so that the raw coal can undergo pyrolysis reaction at a certain temperature. One of the heat supply methods is to use high-temperature semi-coke or high-temperature ash to directly contact raw coal for heat exchange and pyrolysis reaction. If the purpose is to produce coke, the high-temperature coke produced needs to be cooled, and the heat energy loss is serious. If the purpose is to produce coal tar, the high-temperature semi-coke produced also needs to be cooled before further processing, which also causes heat loss. [0003] Gasification technology is a process in which carbon-containing substances such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/46C10J3/48C10J3/50
CPCC10J3/466C10J3/46C10J3/48C10J3/485C10J3/50C10J3/506C10J2200/15C10J2200/152C10J2300/0959C10J2300/0976C10J2300/093C10J2300/0943C10J2300/0923C10J2300/0916C10J2300/0913
Inventor 王鹏飞吴治国邹亮王蕴王卫平
Owner CHINA PETROLEUM & CHEM CORP
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