Entrained-flow bed gasifier

A gasifier and entrained bed technology, which is applied in the details of the gasification unit, the feeding tool of the gasification unit, and the gasification of granular/powder fuels, etc., can solve the problems of huge investment, complicated operation and high requirements for safety interlocking system , to achieve the effect of improving volumetric efficiency, uniform temperature distribution, and improving unit volumetric efficiency

Inactive Publication Date: 2017-05-31
SHANGHAI YINENG GAS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the fact that the existing entrained-bed gasifier is mainly used in large-scale, high-temperature, high-pressure chemical production, which leads to huge investment, complicated operation, high requirements for safety interlock system and is not suitable for low-pressure , the defect of gas preparation in small-scale chemical industry, an entrained-bed gasifier is provided, the entrained-bed gasifier provided by the present invention is low in cost, efficient and safe, and is suitable for industrialization promotion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The cooling walls of the entrained-bed gasification furnace in this embodiment are all in the form of cooling jackets, and the radiant waste pot is used in combination with the gasification chamber.

[0047] The entrained-bed gasification furnace of this embodiment comprises a gasification chamber 1 and a radiation waste pot 2 detachably connected to the bottom of the gasification chamber 1, and a main process burner 102 is arranged on the top of the gasification chamber 1, so that The gasification chamber 1 has a furnace body, and several rows of auxiliary process burners 103 are vertically pierced on the outer wall of the furnace body. A furnace 101 is arranged in the furnace body. Gasification chamber cooling jacket 104, the bottom of the furnace 1 is provided with a gasification chamber outlet 105; the radiant waste pot 2 includes a feed inlet, a slag water outlet 205 and an industrial gas outlet 201, the feed inlet, the The slag water outlet 205 and the industrial ...

Embodiment 2

[0060] The entrained-bed gasifier of this embodiment adopts the structure of Embodiment 1.

[0061] Taking a certain coal-to-gas industrial gas project as an example, the project adopts the gasifier of the present invention to produce industrial gas with medium calorific value by using pulverized coal and oxygen-enriched raw materials, and the coal processing capacity of the gasifier is 200t (dry basis coal) / d.

[0062] In this embodiment, the gasification raw material and 50% of the gasification agent enter the gasification chamber 1 from the main process burner 102 , and 50% of the gasification agent enters the gasification chamber from the auxiliary process burner 103 .

[0063] The coal quality analysis results of the raw pulverized coal used are shown in Table 1. The average particle size of the pulverized coal is 100 μm.

[0064] Table 3 shows the gasification conditions, industrial gas composition and device process performance of this embodiment.

[0065] Table 3 Gasi...

Embodiment 3

[0069] The entrained-bed gasifier of this embodiment adopts the structure of Embodiment 1.

[0070] Taking a petroleum coke industrial gas project as an example, the project adopts the gasifier of the present invention to produce industrial gas with medium calorific value by using petroleum coke and 95% pure oxygen as raw materials. The petroleum coke processing capacity of the gasifier is 200t (dry basis) / d.

[0071] In this embodiment, gasification raw materials and more than 90% of the gasification agent enter the gasification chamber 1 from the main process burner 102 , and less than 10% of the gasification agent enters the gasification chamber from the auxiliary process burner 103 .

[0072] The analysis results of the raw petroleum coke used are shown in Table 4, and the average particle size of the petroleum coke powder is 100 μm.

[0073] Table 4 Petroleum coke analysis results

[0074]

[0075]

[0076] Table 5 shows the gasification conditions, industrial ga...

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Abstract

The invention discloses an entrained-flow bed gasifier comprising a gasification chamber and a radiant syngas cooler which can be connected with the bottom of the gasification chamber in a detachable manner, wherein a main process burner is arranged at the top of the gasification chamber; the gasification chamber is provided with a furnace body; a plurality of rows of sub-process burners are arranged on the outer wall of the furnace body; a hearth is arranged in the furnace body; a gasification chamber cooling wall is arranged between the furnace body and the hearth; an outer-layer cooling wall and an inter-layer cooling wall are arranged on the outer wall and at the center axis of the radiant syngas cooler respectively; and a slag pool is arranged at the bottom of the radiant syngas cooler and communicates with a circulating water pipeline for supplementing slag pool circulation water into the slag pool. The entrained-flow bed gasifier provided by the invention has the advantages of high in gasification effectiveness, high in safety, clean, environmentally friendly, easy and convenient to operate and fast to start and stop.

Description

technical field [0001] The invention belongs to the technical field of industrial gas preparation, and in particular relates to an entrained-flow gasifier. Background technique [0002] my country's widely distributed road construction, construction, building materials, transportation, ceramics, glass, metallurgy, machinery manufacturing and textile industries have a large demand for industrial gas, which is used to heat various kilns, furnaces or directly heat products or semi-finished products. The demand for industrial gas in these industries has the characteristics of low calorific value, large load changes, small scale and scattered distribution. These characteristics make it difficult for industrial gas users to connect to the civilian industrial gas network. They often adopt a distributed industrial gas preparation and application method, that is, the production company establishes an independent small-scale artificial industrial gas preparation device to meet its own...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/48C10J3/50C10J3/76C10J3/86
CPCC10J3/485C10J3/506C10J3/76C10J3/86C10J2200/15C10J2200/152
Inventor 李超刘海峰梁钦锋许建良郭晓镭代正华李伟锋王剑峰龚欣于广锁王辅臣王亦飞陈雪莉郭庆华王兴军陆海峰赵辉龚岩刘霞
Owner SHANGHAI YINENG GAS TECH
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