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Coal gasification method and gasifier

A technology of gasification furnace and coal gasification, which is applied in the field of coal gasification to achieve the effect of prolonging the life of the vault and reducing the number of maintenance times of the furnace

Active Publication Date: 2020-10-23
ENN SCI & TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, this type of gasification furnace and gasification method also have relatively large disadvantages: the height of the material's upward flushing must be controlled to prevent the internal vault of the gasification furnace from being scoured; When the internal dome of the gasifier is damaged, it is necessary to shut down the gasifier, replace or repair the nozzle to restore its feeding capacity

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  • Coal gasification method and gasifier
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Embodiment Construction

[0021] The illustrated embodiments are disclosed with reference to the drawings. It should be understood, however, that the disclosed embodiments are merely embodiments that may be shown in various and alternative forms. The figures are not necessarily to scale and some features may be exaggerated or minimized to show details of particular components. Specific structural and functional details disclosed are not to be interpreted as limiting, but as a representative basis for teaching one skilled in the art how to practice the present disclosure.

[0022] In view of the problems existing in the related art, the object of the present invention is to provide a coal gasification method, so that a layered protective layer is formed on the inner wall 2 of the vault of the gasifier 1 during operation.

[0023] refer to figure 1 In one aspect, the present invention provides a coal gasification method. During the coal gasification process, when the gasification operation is unstable,...

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Abstract

One aspect of the present invention provides a coal gasification method. During the coal gasification process, when the gasification operation is unstable, the protective gas is sprayed into the gasification furnace, and the protective gas is formed to protect the inner wall of the vault of the gasification furnace. Protective atmosphere. The purpose of the present invention is to provide a coal gasification method, so that a layered protective layer is formed on the inner wall of the vault of the gasifier during operation. In another aspect, the present invention provides a gasifier.

Description

technical field [0001] The invention relates to the field of coal gasification, more specifically, to a coal gasification method and a gasification furnace. Background technique [0002] Coal gasification is the main way to convert primary energy into clean secondary energy, and its products are fuel gas (coal gas), synthesis gas, reducing gas, hydrogen, and carbon monoxide. Coal gasification technology has been widely used in combined cycle (IGCC) power generation units, synthetic ammonia and synthetic methanol industries, production of pure carbon monoxide, and production of pure hydrogen, and the gasifier is the key equipment for coal gasification. In the gasification technology using entrained bed gasification, the early gasification furnace had only one feed port, the coal processing capacity of the gasification furnace was relatively low, the residence time of the material in the furnace was short, and the contact with the gasification agent was insufficient, resulting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10J3/50C10J3/48C10J3/46
CPCC10J3/46C10J3/48C10J3/50C10J2200/152C10J2300/093C10J2300/0936C10J2300/0983Y02E20/18
Inventor 陈峰潘霞
Owner ENN SCI & TECH DEV