Carbon dioxide capture pressure swing adsorption tower

Abstract

The invention relates to a carbon dioxide capture pressure swing adsorption tower which is characterized by comprising an inlet flue (1), an outlet flue (8) and at least two rectangular gas adsorption channels, adjacent gas adsorption channels are separated by a baffle (6), and the upper parts of the gas adsorption channels are fixed and pressed by pressing pads (9); an odd gas adsorption channel is set as n gas adsorption channel, an even gas adsorption channel which is sequentially adjacent to the odd gas adsorption channel is set as n+1 gas adsorption channel, n is more than or equal to 1, the upper part of the pressing pads (9) of the n gas adsorption channel and the n+1 gas adsorption channel is provided with a ring shaped guide plate (7); and the inlet flue (1) is rectangular, and is matched with a first gas adsorption channel (3) with the same diameter. The carbon dioxide capture fold-flow fixed bed adsorption tower has the advantages of uniform gas distribution, long gas flow length, high adsorbent utilization rate, bed stability and the like, and is suitable for various kinds of large, medium and small size of carbon dioxide capture pressure swing adsorption engineering.

Description

technical field [0001] The invention relates to the technical field of flue waste gas separation, in particular to a carbon dioxide capture pressure swing adsorption tower and a combination thereof. Background technique [0002] The issue of climate change has been paid more and more attention by the international community. Governments around the world have been committed to relevant scientific research and technological development to improve scientific and technological capabilities to address climate change. As the largest developing country, the Chinese government attaches great importance to relying on scientific and technological progress to address climate change. [0003] Carbon dioxide capture and storage (CCS) technology is considered to be able to significantly reduce greenhouse gas (GHG) emissions from the use of a large number of fossil fuels, and has received extensive attention. my country has many boilers, kilns, combustion furnaces and other furnaces, whi...

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Problems solved by technology

[0005] However, the existing PSA has the following problems in application: 1. The diameter of the adsorption tower is generally larger than that of the gas inlet pipe. 2. The height-to-diameter ratio of the adsorption tower has a great influence on the adsorption rate and gas purity. The larger the height-to-diameter ratio, the higher the adsorption rate

However, the adsorption tower is also limited by its own structure. Simply increasing the height will lead to the instability of the adsorption tower and increase the cost. High-frequency pressure changes, local adsorbents will move in the container and cause fluctuations in adsorption capacity, resulting in unstable working conditions of the adsorber and reducing adsorption efficiency

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