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Design method of fluid curtain bed gas-liquid contact reaction device

A reaction device and gas-liquid contact technology, which are applied in chemical methods, separation methods, chemical instruments and methods for reacting liquid and gas medium, etc., can solve problems such as complex design methods, and achieve easy implementation and high accuracy. Effect

Inactive Publication Date: 2009-03-25
XI AN JIAOTONG UNIV
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  • Description
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Problems solved by technology

At present, there are already forming design methods for gas-liquid absorption reaction devices such as spray and packed towers, but the design methods are relatively complicated, and there is no forming method for this liquid-phase double-flow liquid curtain reaction device

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  • Design method of fluid curtain bed gas-liquid contact reaction device
  • Design method of fluid curtain bed gas-liquid contact reaction device
  • Design method of fluid curtain bed gas-liquid contact reaction device

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0015] see figure 1 , when designing the gas-liquid reaction device, the known quantity is: the liquid-gas ratio of the device (F l / F g ), the amount of flue gas to be treated (F g ) and imported flue gas SO 2 Concentration C in , the scale of the reaction device (cross-sectional size a×b), the parameter to be solved is the arrangement method of the liquid phase injection device, including the number of nozzles (n 1 ×n 2 ), nozzle diameter d n , and the nozzle spacing s, the diameter of the spraying main pipe d tube , and the effective absorption height h when the required reaction efficiency is reached j . The calculation method is based on the following principles:

[0016] 1. Increase the injection velocity V of the liquid in the nozzle j , can increase the height of the sprayed liquid column, increase the gas-liquid contact area; increase the ...

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Abstract

The invention discloses a design method of a fluid curtain bed gas-liquid contact reaction device, when designing the gas-liquid reaction device, the known quantities are: the liquid / gas ratio of the device (F1 / Fg), the amount of flue gas to be treated (Fg), the scale of the reaction device (cross-sectional dimension axb), parameters needing to be solved are all the parameters of an arrangement method and an apparatus of uniform fluid curtain of a liquid phase jet apparatus, which include the number of nozzles (n1xn2), the nozzle diameter dn, the space s between nozzles, the diameter of a jet main pipe d(tube), and the effective absorption height hj of the reaction device when meeting the requirement of reaction efficiency. A solving method bases on the experimental results of the unit, three empirical formulas are introduced, then the algebraic solution is adopted, and the device has advantages of easy implementation and high accuracy.

Description

technical field [0001] The invention belongs to the field of gas-liquid reactors, and in particular relates to a design method of a liquid curtain bed gas-liquid contact reaction device used in wet flue gas desulfurization reactions. Background technique [0002] The core part of the wet flue gas desulfurization process is the gas-liquid reaction device. In the desulfurization reaction device, the flue gas is in contact with the circulating slurry to remove the SO in the flue gas. 2 , complete SO 2 The absorption process, so the desulfurization reaction device must have a good gas-liquid contact area and absorption capacity. [0003] The main features of "liquid curtain gas-liquid two-phase flow" are: (1) The residence time of the liquid is increased by using the fountain-like double-flow flow. (2) When the gas flow rate changes, the gas-liquid two-phase flow mixing can always maintain a relatively strong state, so that the absorption rate is less affected by the load chan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/50B01J10/00B01J19/26
Inventor 李娜周屈兰孔德娟徐通模惠世恩
Owner XI AN JIAOTONG UNIV
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