Regeneration process method and device for solid adsorbent

A solid adsorbent and regeneration device technology, applied in separation methods, filter regeneration, petroleum industry, etc., can solve the problems of large gas or fuel energy consumption, complex equipment, and flue gas pollution, and reduce energy consumption and cost. Inexpensive, Emission Reduction Effect

Inactive Publication Date: 2015-03-25
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantages of these regeneration furnaces are high regeneration efficiency, wide application range, and no waste water. The disadvantages are that the equipment is complicated, the energy consumption of gas or fuel oil is large, and the pollution control facilities are required to discharge a large amount of flue gas; the loss rate of activated carbon is as high as each heating regeneration. 5~15% (including high temperature burning loss, pulverization loss, loading and unloading, transportation loss)
Therefore, there are still many defects in the existing activated carbon regeneration method, and it is necessary to seek a regeneration method and device that is simpler, less energy-consuming, and less polluting.

Method used

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  • Regeneration process method and device for solid adsorbent
  • Regeneration process method and device for solid adsorbent
  • Regeneration process method and device for solid adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The regeneration process of the solid adsorbent in this embodiment includes the following steps: (S1) generating a thermal plasma with a gas temperature above 120°C; (S2) directly or indirectly using the heat of the thermal plasma and / or the activity of the active species The effect is to desorb the adsorbate loaded on the solid adsorbent; (S3) the adsorbate desorbed from the solid adsorbent circulates into the thermal plasma, and under the action of the thermal plasma, the adsorbate is oxidized, decomposed or reduced, and carbonized; ( S4) Adsorbate conversion products are directly discharged or collected.

[0041] In the above embodiments, the adsorbate desorbed from the solid adsorbent circulates into the plasma, and then under the action of the plasma and the addition of auxiliary reaction gas according to the type of the adsorbate, the adsorbate is oxidized, decomposed, reduced or carbonized to convert It is a harmless product, and the carbonized product produced b...

Embodiment 2

[0050] Such as figure 1 Shown is a structural diagram of a specific embodiment of a solid adsorbent regeneration device in the present invention. see figure 1 , the solid adsorbent regeneration device of this embodiment includes a solid adsorbent device 1, a plasma generator, a fan 5 and an exhaust port 16;

[0051] Wherein, the solid adsorbent device 1 is loaded with a solid adsorbent;

[0052] This plasma generator comprises plasma torch 2, plasma power supply 3 and plasma furnace 4, and plasma power supply 3 is connected with plasma torch 2, and plasma torch 2 is connected with plasma furnace 4, and solid adsorbent equipment 1 is connected with plasma torch 2 through pipeline, and plasma The furnace 4 is connected to the solid adsorbent equipment 1 through pipelines, and a circulation loop is formed between the solid adsorbent equipment 1, the plasma torch 2, and the plasma furnace 4;

[0053] Fan 5 is connected in the circulation circuit, and its connection position can...

Embodiment 3

[0068] Such as Figure 4 As shown, the difference from Embodiment 2 is that the exhaust port 16 of this embodiment is connected to the heat exchanger 7 through a pipeline, and then connected to the circulation pipeline through the heat exchanger 7 . In addition, the heat exchanger 7 is also connected with an air inlet 19 through which air is input, and then the adsorbent in the solid adsorbent device 1 is heated after heat exchange by the heat exchanger 7 . when working, such as Figure 4 As shown, the plasma torch 2 is ignited, the fan 5 is operated, and the air enters the heat exchanger 7 from the air inlet 19 for preheating and enters the solid adsorbent device 1 through the air valve 9, and the adsorbent in the solid adsorbent device 1 is heated. After the air is heated, the adsorbate loaded on it is desorbed; the airflow carrying the adsorbate passes through the air valve 10, the fan 5, the air valves 11 and 12, and the plasma torch 2 and enters the plasma furnace 4, and...

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Abstract

The invention relates to the technical field of adsorption separation of chemical engineering and more particularly relates to a regeneration process method and device for a solid adsorbent. According to a process, the solid absorbent is desorbed by utilizing hot plasmas, adsorbates on the solid absorbent can be quickly and fully desorbed within a short time due to direct or indirect action of high-temperature and high-activity species of the hot plasmas, and the adsorbates desorbed from the solid adsorbent circularly enter a hot plasma generator to be radically oxidized and decomposed into harmless products. The device comprises solid adsorbent equipment and the plasma generator forming a circulation loop with the solid absorbent equipment through a pipeline, wherein a fan is arranged in the circulation loop and an exhaust hole is connected with the circulation loop. According to the method and the device, the pollutant discharge amount is remarkably reduced, a primary combustion room or a secondary combustion room for combusting various fuels such as coal gas or fuel oil does not need to be used, and the energy consumption is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of adsorption and separation of chemical engineering, and more specifically, to a solid adsorbent regeneration process method and device. Background technique [0002] Adsorption is a gas-solid or liquid-solid two-phase interface chemical phenomenon. When a gas or liquid contacts a porous solid, one or several components in the gas or liquid accumulate on the surface of the solid. This phenomenon is called adsorption. . The adsorbed substance is called adsorbate, and the porous solid with adsorption is called adsorbent. According to the difference in the force between the adsorbent surface and the adsorbate, adsorption can be divided into physical adsorption and chemical adsorption. Physical adsorption refers to the adsorption mainly caused by the van der Waals force between adsorbate and adsorbent molecules. Chemisorption refers to the adsorption that the adsorbate is mainly bound to the surface of the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/34
Inventor 黄海涛
Owner GUANGDONG UNIV OF TECH
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