Molecular sieve adsorption tower provided with heat transferring medium channels

Abstract

The invention discloses a molecular sieve adsorption tower provided with heat transferring medium channels. The molecular sieve adsorption tower comprises vertical separator plates arranged in a adsorption tower container; space flow channels are formed by adjacent vertical separator plates, and a plurality of the space flow channels distributed at intervals are filled with a molecular absorbent, and are called as process gas channels; the rest space flow channels are taken as the heat transferring medium channels; the upper end and the lower end of the adsorption tower are provided with an upper process gas shell cover and a lower process gas shell cover respectively; the ends of the upper process gas shell cover and the lower process gas shell cover are provided with a process gas inlet and a process gas outlet respectively; two opposite side walls of the container are provided with an upper heat transferring medium shell cover and a lower heat transferring medium shell cover respectively; the ends of the upper heat transferring medium shell cover and the lower heat transferring medium shell cover are provided with a heat transferring medium inlet and a heat transferring medium outlet respectively; the process gas inlet and the process gas outlet are communicated with the process gas channels via the process gas shell covers respectively; and the heat transferring medium inlet and the heat transferring medium outlet are communicated with the heat transferring medium channels via the heat transferring medium shell covers respectively. The molecular sieve adsorption tower is provided with the heat transferring medium channels, so that the molecular sieve can be heated or cooled by the heat transferring medium, molecular sieve regeneration time and adsorption cycle period are shortened, and regeneration gas consumption is reduced.

Description

Technical field: [0001] The invention belongs to adsorption purification equipment, in particular to a molecular sieve adsorption tower with a heat exchange medium channel. Background technique: [0002] At present, the separation of gas mixtures by molecular sieve adsorption is an emerging separation method, which is widely used in the fields of chemical industry, petroleum and environmental engineering as a method of separating and purifying gas mixtures. [0003] Molecular sieve is a kind of porous solid with uniform pore size, whose pore size is equivalent to the molecular size. Molecules with a size smaller than the pore size can enter the pores and be adsorbed, while molecules larger than the pore size are excluded. Molecular sieve temperature swing adsorption refers to the cycle process of adsorption at lower temperature and regeneration at higher temperature. The adsorption process is based on the adsorption of gas molecules on the surface of the adsorbent. Using t...

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Problems solved by technology

When the purified gas is used as the regeneration gas in the conventional technology, the gas is mainly used to heat the adsorbent and the tower body to the analysis temperature, and the specific heat of the gas itself is relatively small, and under the same heat transfer temperature difference, the required amount of gas is relatively large, so The gas consumption of regeneration gas is relatively large; and under certain pipe diameter conditions, it takes a long time to heat the adsorbent to the required temperature, which also prevents the switching cycle of the adsorption device from being further shortened

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