Rotor type pressure swing adsorption gas separation device

Abstract

The invention discloses a rotor type pressure swing adsorption gas separation device, wherein a rotor is arranged in a shell; an adsorption region and a desorption region are divided according to formed different pressures; the rotor comprises a disc with a plurality of empty grids which is formed by a plurality of partition plates; the empty grids are filled with an adsorbent and are sealed by using porous plates or nets at the two ends in the axial direction; during work, the rotor rotates, an adsorbent is driven to continuously move and circulate at the adsorption region and the desorption region; feed gas and/or flushing gas regionally pass (passes) through the adsorbent layer in direction crossed with the adsorbent movement direction, so that the feed gas is continuously separated and purified at the adsorption region; and saturated adsorbent is continuously decompressed or/and flushed and regenerated at the desorption region, so that product gas is continuously and stably produced. The rotor type pressure swing adsorption gas separation device has the advantages of overcoming the defect of frequent switching of an adsorption tower existing in the conventional pressure swing adsorption gas separation device, low energy consumption, high yield, easiness in running and operation, small land occupation and small using amount of the adsorbent, is extremely suitable for the fields of oxygen enriched combustion, oxygen enriched and pure oxygen application of industrial kilns and can also be used for separation and purification industries of other gases.

Description

technical field [0001] The invention is a rotor-type pressure swing adsorption gas separation device, which is used in oxygen-enriched combustion or other oxygen-enriched and pure oxygen application industries, and can also be used in other gas separation and purification industries, which belongs to the gas separation and purification, oxygen-enrichment and pure oxygen application technology field. Background technique [0002] At present, there are three main methods for producing oxygen-enriched air: cryogenic method, membrane separation method and pressure swing adsorption method. The principle of the cryogenic method is low-temperature rectification, which compresses, cools, and liquefies air, and uses the difference in boiling points of different gases to carry out rectification to separate nitrogen and oxygen. This method was invented by Professor Linde in 1902. It is a traditional process of large-scale oxygen production and also the main method of large-scale indus...

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Problems solved by technology

Due to the need for frequent switching between multiple adsorption towers, the production capacity of the pressure swing adsorption device is limited, the energy consumption increases, the floor area is large, and the system is complex

[0005] At present, most of the kilns use air with an oxygen concentration of 21%, which contains 78% nitrogen that does not participate in combustion, taking away a large amount of combustion heat, reducing the combustion temperature, and improving The important thing is that due to the large amount of combustion air and flue gas, the investment in the kiln system equipment is enlarged. On the other hand, the emission of nitrogen oxides is increased due to the large amount of nitrogen entering the combustion zone, and the emission of sulfur dioxide is also increased due to insufficient oxygen concentration.

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