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Gas producer and gas preparation method

A gas generator and gas technology, which is applied in the direction of granular/powder fuel gasification, etc., can solve the problems of low reaction efficiency and low pressure of the gas generator, so as to improve the gas preparation efficiency, increase the carbon concentration, and improve the reduction. The effect of reaction efficiency

Active Publication Date: 2011-03-23
KEDA MAS CLEAN ENERGY
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Problems solved by technology

[0012] The gasifier with the above-mentioned structure in the prior art has the following defects: the pressure in the reduction zone is low, so it is difficult for the molecules of carbon dioxide, water vapor and carbon to fully contact and react, resulting in generally low reaction efficiency of the gasifier

Method used

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Examples

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Embodiment Construction

[0035] Example of gas generator

[0036] Such as figure 2 Shown is a schematic structural view of a specific embodiment of the gas generator of the present invention. The wall of the furnace body 100 of the gas generator includes a furnace 10 , a reduction zone 20 and a gas guiding zone 30 sequentially from bottom to top. The furnace 10 is connected to the first air inlet 120 arranged at the bottom of the furnace body 100 for introducing air, and also connected to the pulverized coal inlet 110 arranged at the middle and lower part of the furnace body 100 . The combustion reaction can be carried out in the furnace 10 after the pulverized coal particles and the gasification agent are introduced. The reduction zone 20 is located above the furnace 10, and the reduction zone 20 is connected to the second gas inlet 130 provided in the middle of the side wall of the furnace body 100 for introducing water vapor or gasification agent. The carbon dioxide produced after combustion, t...

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Abstract

The invention relates to a gas producer and a gas preparation method. The gas producer comprises a hearth, a reducing zone and a gas guide zone which are sequentially arranged in a producer wall from top to bottom, wherein a pulverized coal inlet is formed on the wall face of the hearth; a second gas inlet is formed on the wall face of the reducing zone, and a fine pulverized coal inlet is also formed on the wall face of the reducing zone or a wall face at the intersection of the reducing zone and the hearth. The method comprises the following steps of: introducing pulverized coal particles and a gasification agent into the gas producer for burning; and introducing fine pulverized coal particles into the gas producer to ensure that the materials in the gas producer are reacted to form carbon monoxide and hydrogen gas. In the invention, the technical means of forming the fine pulverized coal inlet on the gas producer for leading the fine pulverized coal particles in a carbon monoxide preparing reaction through reduction is adopted, so that the concentration of materials in the reducing zone is improved; the reduction reaction efficiency in the reducing zone can be promoted; and then the preparation efficiency of gas can be improved.

Description

technical field [0001] The invention relates to a coal gas generator and a gas preparation method, in particular to a fluidized bed gas generator and a method for preparing gas by using the equipment. Background technique [0002] Compared with the combustion of coal, the combustion of gas is cleaner and more efficient, so gas as a clean energy is receiving more and more attention. The gasifiers that convert coal to gas can be mainly divided into three categories: fixed bed, fluidized bed and entrained bed. In the actual production process, pulverized coal gasification is more efficient than lump coal gasification, and it is the main coal gasification method currently researched and applied. [0003] The gasification principle of using pulverized coal to produce coal gas is the reaction of coal and gasification agent, which is essentially the reaction of carbon, oxygen and water vapor. In a common gasifier, the pulverized coal is passed into the gasifier, and water vapor a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/56C10J3/54
Inventor 武桢李庆民邵俊杰
Owner KEDA MAS CLEAN ENERGY
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