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rotating packed bed

A technology of rotating packed bed and packed bed, applied in the field of rotating packed bed, can solve problems such as increasing the pressure loss across the bed, and achieve the effect of increasing design flexibility and optimizing process efficiency

Active Publication Date: 2016-04-06
GENERAL ELECTRIC TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While volume to contact area and mass transfer coefficients for rotating beds are beneficially increased, pressure losses experienced across the bed are increased

Method used

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Examples

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Embodiment Construction

[0062] figure 1 Shown is a cross-sectional view of a rotating packed bed 1 having a housing 10 and arranged on a horizontally aligned shaft 2 driven by a motor. In this example, the axes are arranged horizontally. Arrangements with vertical axes are also possible.

[0063] A first packed bed 3 and a second packed bed 4 are arranged adjacent to each other on the axis 2, wherein the two packed beds each have an inner radius r a3 and r a4 and have outer radius r respectively b3 and r b4 . two inner radii r a3 and r a4 are adjacent to the axis. A line 6 for gas, for example exhaust gas from a gas turbine, is arranged to lead the gas through a first inlet G through the device housing 10 in . The gas enters the first gas plenum 6' which is along the axis at the inner radius r of the first bed 3 a3 extend between. Arrows indicate gas flow through the plenum and into the first packed bed.

[0064] For liquids such as water to be degassed or to absorb CO 2 The line 5 a of...

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PUM

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Abstract

A rotating packed bed RPB (1) comprises a first packed bed and a second packed bed (3,4), both arranged on the same rotatable shaft (2). The gas is directed in a radially outward direction towards the outer radius of the packed bed (3) via the gas inlet (Gin) through the first packed bed (3) in co-current flow with the liquid. Liquid enters the first packed bed via the first liquid inlet (5a). The gas leaving the first packed bed (3) is directed to the second packed bed (4) and forced to flow in a radially inward direction through the second Packed bed (4). This arrangement allows operating the rotating packed bed with less energy than prior art PRBs operating with countercurrent flow only. This device allows for low cost design and a high degree of design flexibility.

Description

technical field [0001] The present invention relates to a rotating packed bed for an absorption or desorption process and an absorption or desorption process using the rotating packed bed. Background technique [0002] Packed beds are known in the art for their application in gas-liquid separations, such as the separation of air from water, or in absorption / desorption processes, eg absorption of specific gases from exhaust gases. The performance of a packed bed (also called a packed column) is mainly given by the porosity of the material used for packing, the total surface area of ​​its packed bed, and the total height of the column. Typically, gas and liquid are directed through the fixed packed bed in countercurrent flow direction to each other, since higher separation efficiencies can be achieved in countercurrent flow processes compared to cocurrent flow processes. [0003] In a fixed packed bed, the liquid passing through the packing relies solely on gravity, which lea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D3/30
CPCB01D3/30B01D53/185
Inventor H.沃夫P.阿勒克斯F.K.恩南巴奇M.H.托特希尔
Owner GENERAL ELECTRIC TECH GMBH