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Low-pressure-drop nano/microstructure filler revolving bed supergravity device and application thereof

A structured packing and super-gravity technology, which is applied in the application of nano-structured rotating bed super-gravity device in the process of removing harmful gases, super-gravity device, and the field of deep sulfur dioxide removal, which can solve the problem of difficult to meet the low pressure drop and deep desulfurization. , It is difficult to meet the problems of low pressure drop, irregularity of packing, etc., to achieve the effect of small footprint, large operation flexibility and low cost

Inactive Publication Date: 2012-10-17
BEIJING UNIV OF CHEM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing structure of the rotating bed supergravity device uses wire mesh packing inside the rotor as the core structure. Due to the randomness of the packing, there are still disadvantages such as large pressure drop, which makes it difficult to meet the requirements of the deep desulfurization technology transformation of the factory. The low dropout requirements of the
The baffled orifice plate (rotating parts without filler) rotating bed supergravity device proposed by Zhejiang University of Technology (application number: 01268009, 200510049145) has a larger gas phase pressure drop, and it is more difficult to meet the requirements of low pressure drop deep desulfurization

Method used

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  • Low-pressure-drop nano/microstructure filler revolving bed supergravity device and application thereof
  • Low-pressure-drop nano/microstructure filler revolving bed supergravity device and application thereof
  • Low-pressure-drop nano/microstructure filler revolving bed supergravity device and application thereof

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Experimental program
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Effect test

Embodiment 1

[0036] The harmful gas in the raw gas is sulfur dioxide, the content φ i It is 1960ppm, and the absorption liquid is ammonia solution. The system temperature T in the absorption process was 50°C. Rotating bed speed N is 500r / min, filler type is sintered ceramic filler specific surface area ζ is 900m 2 / m 3 , gas-liquid countercurrent, wind-inducing blades, the gas-liquid flow ratio η is 800:1. The content of harmful gas sulfur dioxide in the outlet gas of the rotating bed φ o 50ppm, the inlet and outlet pressure drop Δp is 1200Pa.

Embodiment 2-21

[0038] The process flow and steps are the same as in Example 1, and the process conditions and operating conditions of each embodiment and the corresponding experimental results are shown in Table 1.

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Abstract

The invention discloses a low-pressure-drop nano / microstructure filler revolving bed supergravity device and application thereof and belongs to the technical field of supergravity. The supergravity device comprises a rotating part formed by arranging a rotor and a filler in a closed shell, wherein the shell and an upper cover have a liquid inlet, a liquid outlet, a gas inlet and a gas outlet; anda liquid distributor extending into a central cavity of the rotor is arranged in the liquid inlet. In the device, the filler in the rotating part is a structuralized SiC, sintered ceramic and powder sintered titanium-based alloy filler with a nano / microstructure, the runner diameter of the structuralized filler is 0.1 to 5mm, the porosity is 55 to 97 percent, the surface of the filler has a 0.01 to 3-micrometer convexo-concave nano / microstructure, and the specific surface area of the filler is 200 to 2,000m<2> / m<3>. When the device is used for deeply removing sulfur dioxide from industrial gases such as sulfuric acid industrial tail gas with low-pressure-drop requirement, the pressure drop of the supergravity device is lowered by 40 to 80 percent, and the harmful gas content after treatment is lower than 20 to 100ppm.

Description

technical field [0001] The invention relates to a supergravity device for removing corrosive and harmful gases in industrial tail gas and its application, in particular to the application of a nano-microstructured rotating bed supergravity device in the process of removing harmful gases, especially suitable for low pressure requirements The deep removal of sulfur dioxide in industrial tail gas such as falling sulfuric acid belongs to the field of high gravity technology. Background technique [0002] Sulfur dioxide, hydrogen sulfide, HCl, HF and other acids or NH are often contained in sulfuric acid, chemical fertilizers, smelting and other industrial tail gases 3 , volatile organic amines and other alkaline corrosive harmful gases. With the increasing pressure of environmental protection and the requirement of resource recovery and effective utilization, the deep removal of harmful gases has been highly valued. Taking the sulfuric acid industry as an example, the sulfur d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/18B01D53/78B01J19/30
CPCB01D2255/20707B01J2219/30416B01J2208/026B01J2219/30483B01D53/83B01D53/8609B01J8/382
Inventor 陈建峰初广文邹海魁赵宏罗勇
Owner BEIJING UNIV OF CHEM TECH
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