Oxygen Enrichment through Mini-Scale Rotary Six-Bed Pressure Swing Adsorption

Abstract:

This paper presents the structure for a rotary six-bed adsorber that carries out a six-step PSA continuous oxygen generation process with a short cycle time and a low operation pressure ratio. The working principle of a rotary six-bed PSA oxygen generator is introduced and the effects of various operating parameters on PSA performance are experimentally investigated. The results indicate that, the adsorption pressure increases with the reduction of rotating speed and decreases with the lowering of the feed flow rate; with the acceleration of rotating velocity, the oxygen purity of the gas produced first rises and then drops, and it has an optimum rotating velocity; the higher the feed flow rate, the lower the oxygen purity of the product; the ratio of the pressurization angle to the adsorption angle has a remarkable effect on the oxygen purity with the oxygen purity increasing according to the condition of keeping the angle of the feeding ring groove and with the increase in this ratio; and the long-purging time at a low purging-gas flow rate is appropriate for miniature apparatus.

• Periodical: Advanced Materials Research (Volumes 726-731)
• Pages: 780-788
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.726-731.780
• Online since: August 2013
• Authors: Li Qun Ding*, Peng Cheng Shu
• Keywords: Air Separation, Design, Mini-Scale, Pressure Swing Adsorption, Six-Bed Rotary, Zeolite

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