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Fine solid particle recycling device and fluidized bed reactor comprising same

A technology of fluidized bed reactors and solid particles, applied in chemical instruments and methods, chemical/physical processes, etc., can solve problems such as refractory treatment, further utilization, and environmental threats

Inactive Publication Date: 2015-05-13
SYNTHESIS ENERGY SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon loss is a major disadvantage economically and also poses a threat to the environment due to the large amount of ash released
Further, the carbon-containing fine solid particles are also relatively light, and their volume per unit mass is usually 4-5 times that of water, making it difficult to handle and further utilize

Method used

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  • Fine solid particle recycling device and fluidized bed reactor comprising same
  • Fine solid particle recycling device and fluidized bed reactor comprising same
  • Fine solid particle recycling device and fluidized bed reactor comprising same

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Embodiment Construction

[0021] The invention provides a device for collecting and recycling fine solid particles and a fluidized bed reactor comprising the same.

[0022] figure 1 The relative positions of various main elements of the fluidized bed reactor system incorporating the fine solid particle recovery and utilization device of the present invention are given.

[0023] Such as figure 1 As shown, the fluidized bed reactor system includes a gasifier 10 , a first stage cyclone separator 20 and a second stage cyclone separator 30 .

[0024] The gasifier 10 includes a gas inlet 11 , a solid particle inlet 12 and a gas and solid particle outlet 13 . The gas inlet 11 is located below the gasifier 10 and is used to input gas flow and oxygen into the gasifier 10 . The solid particle inlet 12 is located on the side wall of the gasifier 10 and is used for inputting coal solid particles into the gasifier 10 . As previously mentioned, chemical reactions occur within the gasifier 10 and produce products...

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Abstract

The invention provides a fine solid particle recycling device of a fluidized bed reactor, which comprises an injector connected with a dipleg, and the dipeg extends from a cyclone separator connected with the reactor, wherein fine solid particles are removed from the dipleg and mixed with injection gas for forming mixture of the injection gas-fine solid particles, thereby leading the fine solid particles to be recycled into the region of a fluidized bed, and further leading the fine solid particles to be reacted in the region of the fluidized bed for improving the reaction efficiency.

Description

technical field [0001] The invention relates to a device for collecting and recycling fine solid particles and a fluidized bed reactor including the same. Background technique [0002] Fluidized bed reactors are commonly used to chemically react solid phase reactants with gas phase reactants. The immediate product of the fluidized bed region of the reactor is often referred to as the outlet gas stream, which contains gaseous products as well as solid particles containing unreacted solid phase reactants or reaction products (ash). These solid particles are particulates of various sizes. In order to improve the utilization efficiency of solid-phase reactants and reduce the amount of waste ash, one or more stages of cyclone separators (multi-stage cyclone separators) are usually used in fluidized bed reactors. [0003] In a multi-cyclone build, the first stage cyclone collects large particles and recycles the solids into the fluidized bed through matching diplegs with various...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/24
Inventor 刘国海
Owner SYNTHESIS ENERGY SYST