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

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; and a 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 convexoconcave 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...

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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

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