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Circulating fluidized bed gasification device and circulating fluidized bed gasification method

A technology of circulating fluidized bed and gasifier, which is applied in the gasification of granular/powder fuel, the manufacture of combustible gas, and the petroleum industry, etc., can solve the problems of low gasification performance, limited temperature at the bottom of the furnace, consumption, etc.

Active Publication Date: 2021-05-21
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0010] The purpose of the present invention is also to provide a circulating fluidized bed gasification device and a circulating fluidized bed gasification method to solve the problem of low gasification performance due to the limited temperature at the bottom of the furnace
[0011] The purpose of the present invention is also to provide a circulating fluidized bed gasification device and a circulating fluidized bed gasification method, to solve the problem of secondary air consumption of the generated effective gas, improve the gasification agent and gasification furnace Reaction ratio of carbon, increase reaction temperature

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[0043] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements. In addition, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a comprehensive understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form to simplify the drawings.

[0044] According to the general concept of the present invention, a circulating fluidized bed gasification device is provided, the circulating fluidized bed gasification device includes a gasification furnace hearth, a gas-solid separator and a feeder, wherein the gasification furnace hearth and The gas-solid separator is connected,...

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Abstract

The invention provides a circulating fluidized bed gasification device which comprises a gasification furnace hearth (1), a gas-solid separator (2) and a return feeder (4), the gasification furnace hearth (1) is communicated with the gas-solid separator (2), the gas-solid separator (2) is communicated with the return feeder (4), the return feeder (4) is communicated with the gasification furnace hearth (1), the gasification furnace hearth (1) is provided with a fuel inlet and a primary air inlet, and the return feeder (4) comprises a secondary air inlet which is used for supplying secondary air (S) into the return feeder (4), so that the secondary air (S) and circulating materials separated from the gas-solid separator (2) are subjected to gasification reaction in the return feeder (4). The invention also provides a circulating fluidized bed gasification method. According to the circulating fluidized bed gasification device and the circulating fluidized bed gasification method provided by the invention, the overall gasification performance of the system is effectively improved.

Description

technical field [0001] The invention relates to the technical field of fuel gasification, in particular to a circulating fluidized bed gasification device and a circulating fluidized bed gasification method. Background technique [0002] Coal gasification technology is an important part of clean coal technology and one of the main ways to use coal efficiently and cleanly. It has become the core technology of many modern energy and chemical systems. According to the state of solid movement in the system, coal gasification technology can be mainly divided into fixed bed gasification, fluidized bed gasification and entrained bed gasification. Fluidized bed coal gasification technology is the earliest industrialized gasification process. Its process is to blow gasification agent with a certain pressure from the lower part of the bed through the air distribution plate, and lift the broken coal on the bed. When the gasification agent rises , the coal particles move in a suspended...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/48C10J3/72
CPCC10J3/485C10J3/723
Inventor 朱治平王小芳董鹏飞王坤湛月平
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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