Pressure swing adsorption gas purifier

A pressure swing adsorption and purifier technology, applied in chemical instruments and methods, using solid contact hydrogen separation, dispersed particle separation, etc., can solve the problems of inability to provide high-purity hydrogen, cumbersome construction process, long intake time, etc., to achieve Easy assembly, structural integration, and low cost effects

Active Publication Date: 2014-09-10
BEIJING NOWOGEN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the cumbersome construction process, long construction period, and high overall cost brought about by the large-scale purification of PSA hydrogen at prese

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0116] Example 1

[0117] Adopting the above-mentioned one purification tank one product gas buffer tank type PSA purifier of the present invention, wherein the above-mentioned built-in isolation device of the present invention is not installed in the purification tank, but three layers of 10 meshes are respectively used at the upper and lower ends of the adsorption bed. The high-density metal wire mesh is used to hold the adsorbent in it, and the bottom of the purification tank is not filled with the porous plastic beads of the present invention. To mainly contain H 2 , And contains a small amount of H 2 O, CO, CO 2 The specific operation process is as follows: First, open the raw gas inlet valve of the purification tank, so that the raw gas to be purified enters the purification tank for purification, and the purified product gas is discharged from the product gas outlet valve of the purification tank through The front back pressure valve is directly input into the product gas ...

Example Embodiment

[0120] Example 2

[0121] Adopting the above-mentioned purification tank-product gas buffer tank type PSA purifier of the present invention, wherein the above-mentioned built-in isolation device of the present invention is installed at the upper and lower ends of the adsorption bed in the purification tank to hold the adsorbent located therein. , But the bottom of the purification tank is not filled with the porous plastic pellets of the present invention. According to the operation method described in Example 1, it mainly contains H 2 , And contains a small amount of H 2 O, CO, CO 2 The mixed raw material gas is purified, the inlet flow is 110 SLPM, and the cumulative operation is about 1000 hours, still maintaining a high hydrogen purity, which can meet the needs of fuel cells (ie ≥99.99%).

[0122] Table 3 Purification data of the purifier with built-in isolation device but not filled with porous plastic beads

[0123]

Example Embodiment

[0124] Example 3

[0125] Adopting the above-mentioned purification tank-product gas buffer tank type PSA purifier of the present invention, wherein the above-mentioned built-in isolation device of the present invention is installed at the upper and lower ends of the adsorption bed in the purification tank to hold the adsorbent located therein. , And the bottom of the purification tank is filled with the porous plastic pellets of the present invention. According to the operation method described in Example 1, it mainly contains H 2 , And contains a small amount of H 2 O, CO, CO 2 The mixed raw gas is purified. The intake air flow is 110 SLPM, and the cumulative operation is more than 2000 hours, and the hydrogen purity has no obvious change.

[0126] Table 4 Purification data of the purifier with built-in isolation device and filled with porous plastic beads

[0127]

[0128] The influence of adsorbent selection on product gas purity and yield

[0129] The pressure swing adsorptio...

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Abstract

The invention provides a gas purification device using a pressure swing adsorption principle. The pressure swing adsorption gas purifier provided by the invention has the characteristics of integration and miniaturization in structure, easiness in PSA (Pressure Swing Adsorption) circulation, high flexibility, easiness for assembling, high purification efficiency, low cost and the like.

Description

technical field [0001] The invention relates to a gas purification device utilizing the principle of pressure swing adsorption (Pressure Swing Adsorption, PSA). Background technique [0002] PSA gas purification technology is a technology that uses adsorbents to absorb impurity components at high pressure and desorb impurity components at low pressure to purify the gas. [0003] Since the example of the PSA system was disclosed in the patent US3430418, the patents US3564816 and US3986849 have been optimized on the basis of the former. While increasing the adsorption bed, an equalization step has been added to improve the yield, but it has brought multiple valves and processes. cumbersome question. Although the subsequent patent US4761165 reduced the control valves of the four-purification tank purifier to 18, the patent US6146450 also reduced the complexity of the pipeline configuration, and the Chinese patent application 200380101138.0 further optimized the working cycle o...

Claims

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Application Information

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IPC IPC(8): B01D53/053C01B3/56
Inventor 欧阳洵朱俊娥
Owner BEIJING NOWOGEN TECH CO LTD
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