Improved regeneration process of temperature swing adsorption tower

Abstract

The invention discloses an improved regeneration process of a temperature swing adsorption tower. The improved regeneration process comprises the following cyclical steps of step I: running an adsorption tower A-1201B; step II, enabling a regeneration gas flow to pass through a flow meter FIQ1201, then enabling the regeneration gas flow to enter an adsorption tower A-1201A through a sequencing valve KV1209 and a sequencing valve KV1203A in sequence, and then enabling the regeneration gas flow to come out from the adsorption tower A-1201A through a sequencing valve KV1206A, so as to finish thecold blowing procedure of the adsorption tower A-1201A; and step III, enabling the regeneration gas flow to continuously advance on the basis of the step II, enabling the regeneration gas flow to enter a regeneration preheater and a regeneration heater in sequence through a sequencing valve KV1207 to heat a regeneration gas, then enabling the regeneration gas to enter the heating procedure of an adsorption tower A-1201C through a sequencing valve KV1205C, and then enabling the regeneration gas to come out from a system through a sequencing valve KV1204C. The states of three adsorption towers are cyclically switched and come full circle; through redesigning the process, the regeneration periods of multiple temperature swing adsorption towers are shortened; and the consumption of a product gas is decreased.

Description

technical field [0001] The invention relates to the technical field of temperature swing adsorption towers, and more specifically relates to an improved regeneration process of temperature swing adsorption towers. Background technique [0002] Temperature swing adsorption is to use the characteristic that the equilibrium adsorption capacity of the adsorbent decreases with the increase of temperature, and adopts the operation method of normal temperature adsorption and temperature rise desorption. Please refer to the accompanying drawings in the figure 2 , is the process flow diagram of the prior art. This process is a temperature swing adsorption process, including 3 temperature swing adsorption towers and their attached regeneration devices. The devices are introduced as follows: A-1201A / B / C is a temperature swing adsorption tower; E-1205 is a regeneration Preheater; E-1204 is a regenerative heater; all valves are program-controlled valves, black means closed, white means ...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems existing in the prior art, the object of the present invention is to provide an improved regeneration process of temperature swing adsorption towers, which can greatly shorten the regeneration cycle of multiple temperature swing adsorption towers by redesigning the process, fundamentally It solves the problem that the switching period of the temperature variable adsorption tower cannot be connected, reduces the risk of product quality accidents, and reduces the consumption of product gas, which can greatly improve the quality of the product and reduce the cost under the premise of ensuring quality. Improve the competitiveness of enterprises and facilitate the development of enterprises

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