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A spindle-shaped grid-type structured packing

A structured packing and spindle-shaped technology, which is applied in chemical/physical/physicochemical processes, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of poor packing strength, complicated manufacturing process, and inability to eliminate the interfacial resistance of packing layers. , to achieve the effect of improving mass transfer capacity and increasing surface area

Active Publication Date: 2019-03-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned first kind of packing uses concave-convex units near the corrugated surface of the packing to achieve a certain degree of gas-liquid contraction and expansion movement, but the manufacturing process of the packing is complicated, the packing strength is poor, and the interfacial resistance of the packing layer cannot be eliminated; the second packing is the same as ordinary The structure of the structured packing is basically the same, and only the local deformation of the packing is used to generate the local turbulence of the gas and liquid at the peaks and valleys of the packing, which has no substantial effect on improving the packing efficiency.

Method used

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  • A spindle-shaped grid-type structured packing
  • A spindle-shaped grid-type structured packing
  • A spindle-shaped grid-type structured packing

Examples

Experimental program
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Effect test

Embodiment

[0037] A high-temperature flue gas temperature is 180°C, and the gas volume is 180,000Nm 3 / h, SO 2 The concentration is 800mg / Nm 3 , dust content 300mg / Nm 3 .

[0038] Operating conditions: liquid-gas ratio 3L / Nm 3 , with NaOH solution as absorbent, gas-liquid countercurrent contact.

[0039] After being treated by the invention, the flue gas temperature drops to 60°C, the desulfurization efficiency is 90-95%, and the dust removal efficiency is 90-95%.

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PUM

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Abstract

The present invention discloses a spindle-shaped grid type structured packing, which comprises at least a layer of a packing zone comprising a plurality of horizontally-placed spindle-shaped special-shaped pipes connected in parallel, wherein the plurality of the horizontally-placed spindle-shaped special-shaped pipes connected in parallel form a plurality of parallel channels with collection sections, laryngeal orifices and dispersion sections, the cross section of the spindle-shaped special-shaped pipe is the spindle shape, the top portion and the lower portion of the spindle-shaped special-shaped pipe are the arc shapes, the radius of the arc on the top portion is larger than the radius of the arc on the lower portion, and the outer periphery of the spindle-shaped special-shaped pipe is provided with a plurality of parallel and projecting bosses. Compared with the existing structured packing, the spindle-shaped grid type structured packing of the present invention has advantages of high mass transfer efficiency, simple structure, small size, fouling resistance, low pressure drop and less liquid foam entrainment. In addition, the spindle-shaped grid type structured packing of the present invention is suitable for the gas-liquid two-phase mass transfer and reaction processes, especially for the dust removal and desulfurization treatment of flue gas and process exhaust gas, and can be widely used in the fields of petrochemical industry, environmental protection and the like.

Description

technical field [0001] The invention relates to a spindle-shaped grid-type structured packing, which is suitable for dust removal and gas-liquid two-phase mass transfer and reaction process, especially for dust removal and desulfurization treatment of flue gas and process tail gas, and can be widely used in petrochemical, environmental protection and other fields. Background technique [0002] As a traditional gas and liquid mass transfer equipment, the packed tower has developed greatly in recent years. Due to the continuous improvement of the packing structure, the packed tower has replaced the traditional plate tower in many production processes. At present, the packing used in the packed tower in the gas and liquid mass transfer equipment is mainly divided into two categories: random packing and structured packing. Random packing is a granular body with a certain geometric shape and size, which is generally piled up in the tower in a random manner, also known as random p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/32
CPCB01J19/32B01J2219/322
Inventor 方向晨彭德强王岩王璐瑶陈建兵孟凡飞陈新王明星
Owner CHINA PETROLEUM & CHEM CORP
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