A Saturated Adsorption Process and Device for Pressure Swing Adsorption Decarburization

A pressure swing adsorption and process technology, which is applied in the field of saturated adsorption process and its devices, can solve the problems of large loss of effective components of gas and low CO2 absorption rate, etc., to reduce the loss of effective components, increase CO2 absorption rate, and realize recovery rate effect

Active Publication Date: 2017-02-01
HUNAN THREE ARROWS AUTOMATION TECH
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  • Claims
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Problems solved by technology

[0025] The purpose of the present invention is to provide a saturated adsorption process for pressure swing adsorption decarburization in view of the shortcomings of low CO2 absorption rate and large loss of gas effective components in the prior art

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  • A Saturated Adsorption Process and Device for Pressure Swing Adsorption Decarburization
  • A Saturated Adsorption Process and Device for Pressure Swing Adsorption Decarburization
  • A Saturated Adsorption Process and Device for Pressure Swing Adsorption Decarburization

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Embodiment 1

[0050] refer to figure 1 and figure 2 As shown, a saturated adsorption process for pressure swing adsorption decarburization provided by the present invention uses adsorption towers arranged side by side to remove CO2 gas in the raw gas through the adsorbent in the adsorption tower to obtain purified gas. Each cycle of the above adsorption process includes adsorption, equal pressure drop, recovery RG, vacuum V, equal pressure rise, isolation Q and final boost FR, and the described adsorption includes pre-adsorption A1, adsorption A and post-adsorption A2, Among them: the specific process of the pre-adsorption A1 is to input the output gas of other adsorption towers in the post-adsorption A2 stage, and output the purified gas; the specific process of the adsorption A is to input the raw material gas and output the purified gas; the specific process of the post-adsorption A2 is to output more than the purified gas The gas with the gas index is used as the input gas of the pre-...

Embodiment 2

[0073] refer to figure 1 As shown, the present invention also provides a device for realizing the above-mentioned saturated adsorption process of pressure swing adsorption decarburization, comprising multiple groups of adsorption towers (a, b, c...) arranged side by side, and adsorption towers (a, b, The bottom of c...) is connected to the raw material inlet valve (1a, 1b, 1c...) for feeding the raw material gas, and connected to the top of the adsorption tower (a, b, c...) to output the purified gas for the purified gas Gas outlet valve (2a, 2b, 2c...), the first pressure equalizing valve (3a, 3b, 3c...) connected to the top of the adsorption tower (a, b, c...) for pressure equalization and pressure rise, The second pressure equalizing valve (4a, 4b, 4c...) and the third pressure equalizing valve (5a, 5b, 5c...) respectively pass through the first control valve K3 and the second control valve K4 and the second pressure equalizing valve ( 4a, 4b, 4c...) and the third pressure...

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Abstract

The invention relates to the technical field of pressure swing adsorption decarburization and discloses a novel saturation adsorption process of pressure swing adsorption decarburization and a device thereof. According to the process, CO2 gas in raw gas is adsorbed and removed by adsorbents in adsorption towers which are arranged in parallel, so as to obtain purified gas. Each circulation of the process comprises adsorption, uniform pressure drop, recycling, vacuumization, uniform pressure rise, isolation and final boosting, wherein the adsorption includes front adsorption, adsorption and back adsorption; the front adsorption specifically comprises the steps of inputting the output gas at the stage of the back adsorption of other adsorption towers and outputting the purified gas; the adsorption specifically comprises the steps of inputting the raw gas and outputting the purified gas; the back adsorption specifically comprises the step of outputting gas which exceeds the indexes of the purified gas, so as to be used as the input gas of the front adsorption or the final inflated gas of the final boosting; the final boosting comprises the step of boosting the adsorption tower by adopting the gas which exceeds the indexes of the purified gas and is output by the back adsorption of other adsorption towers. The novel saturation adsorption process has the advantages of high CO2 absorptivity, less loss of effective constituents in the gas and the like.

Description

technical field [0001] The invention relates to the technical field of pressure swing adsorption decarburization, and more specifically relates to a saturated adsorption process and a device thereof for pressure swing adsorption decarburization. Background technique [0002] The working principle of pressure swing adsorption (PSA): using the selective adsorption of different adsorbents by the adsorbent and the difference in the capacity of the adsorbent to the adsorbate as the pressure changes, under the condition of selective adsorption of the adsorbent, high-pressure adsorption The specific components in the raw material gas are desorbed under low pressure to regenerate the adsorbent. At the same time, multiple sets of adsorption devices are designed to change the working pressure of each group in groups to achieve continuous separation of specific components in the raw material gas. The purpose of components, so as to achieve continuous production. [0003] Pressure swin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/047
Inventor 蒋明刚
Owner HUNAN THREE ARROWS AUTOMATION TECH
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