Plate-type adsorption and desorption device for purifying and recovering volatile organic matters in exhaust gas

A technology for volatile organic compounds and waste gas, applied in chemical instruments and methods, dispersed particle separation, separation methods, etc., can solve the problem of insufficient contact between waste gas and adsorbent, slow flow rate of cooling or heating agent, and low mass transfer and heat transfer efficiency. problems, to achieve the effect of easy mobile operation, low consumption of metal materials, and improved heat transfer

Active Publication Date: 2012-10-03
武汉旭日华环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These devices have many disadvantages, such as insufficient contact between exhaust gas and adsorbent, slow flow rate of cooling or heating agent, low efficiency of mass transfer and heat transfer, not compact equipment, etc.

Method used

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  • Plate-type adsorption and desorption device for purifying and recovering volatile organic matters in exhaust gas
  • Plate-type adsorption and desorption device for purifying and recovering volatile organic matters in exhaust gas
  • Plate-type adsorption and desorption device for purifying and recovering volatile organic matters in exhaust gas

Examples

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Effect test

Embodiment 1

[0017] A plate-type adsorption-desorption device for purifying and recovering volatile organic compounds in waste gas, including a frame and a plurality of thin metal heat transfer plates 2, the thin metal heat transfer plates are fixed on the frame in turn, and the edges of two adjacent thin metal heat transfer plates are lined with The rubber gasket is pressed tightly, and the four corners of the thin metal heat transfer plate are respectively provided with through holes 1 to form two channels, in which the waste gas containing volatile organic compounds, cold and hot liquid or steam pass alternately on both sides of the thin metal heat transfer plate. holes for heat exchange.

[0018] Such as Figure 1-2 , the thickness of the thin metal heat transfer plate is 3-5 mm, one of the surfaces is grooved or corrugated, and the other side is evenly welded with short piles 3 perpendicular to the plane, with a diameter of 10-25 mm and a height of 20-40 mm. Evenly distributed. The ...

Embodiment 2

[0025] A chemical plant unloads VOC from tank trucks S To the receiving tank, move the independent unit car composed of plate adsorption-desorption device and suction fan to VOC S At the loading and unloading site, it is connected with the exhaust port of the receiving tank, and the VOC is unloaded S At the same time, the independent unit passes cooling water, draws air, and completes exhaust gas purification, and then assembles this independent unit into the plate adsorption-desorption device to implement VOC in the whole process. S Desorption recovery.

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Abstract

The invention relates to a plate-type adsorption and desorption device for purifying and recovering volatile organic matters in exhaust gas, which comprises a framework and a plurality of thin metal heat transfer plates. The thin metal heat transfer plates are fixed on the framework in sequence; the edge lining of adjacent two thin metal heat transfer plates is compressed by a gasket; four corners of each thin metal heat transfer plate are provided with through holes so that two channels are formed; and the exhaust gas containing volatile organic matters, cold liquid and hot liquid or steam flow through the through holes on two sides of the thin metal heat transfer plate alternatively to exchange heat. The invention has the advantages that: (1) the flow velocity of the fluid on two sides of the surfaces of the thin metal heat transfer plates is high, the total heat transfer coefficient is high, and the heat transfer is changed; (2) the exhaust gas and the solid adsorbent can contact more fully, the flow velocity of the exhaust gas is high, and the transfer mass is strengthened; (3) the plate-type adsorption and desorption device has a compact structure, the number of the thin metal heat transfer plates can be increased and decreased according to needs of productivity, or the units can be connected in parallel; (4) the heat transfer area of unit volume is large, and the consumption of metal material is low; (5) the plate-type adsorption and desorption device has high operational flexibility and is convenient to move to work; and (6) the plate-type adsorption and desorption device has the operating pressure of 1.0MPa to 1.2MPa or 0.1MPa.

Description

technical field [0001] The invention relates to the fields of environmental protection and chemical separation, in particular to a plate-type adsorption-desorption device for purifying and recovering volatile organic compounds in waste gas. Background technique [0002] VOCs generated from the production process of chemical industry, biomedicine, light industry, textile and mechanical electronics S Industrial waste gas, at present, widely use activated carbon fiber (ACF), granular activated carbon (GAC), molecular sieve and other solid adsorbents to adsorb VOC by temperature swing adsorption (TSA) or pressure swing adsorption (PSA) method S The exhaust gas can be purified and emptied, and the adsorption process can achieve the adsorption of the adsorbent by VOC S VOCs removed from the adsorbent after saturation using temperature swing (TSA) or pressure swing desorption (PSA) S The steam is condensed, cooled, liquefied and recovered, and recycled after purification. Adso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/04
Inventor 杨旭东吴晓慧殷斌烈
Owner 武汉旭日华环保科技股份有限公司
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