Production of oxygen enriched air by rapid pressure swing adsorption

被引:27
作者
Sircar, S [1 ]
Hanley, BF [1 ]
机构
[1] AIR PROD & CHEM INC,ALLENTOWN,PA 18195
来源
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY | 1995年 / 1卷 / 04期
关键词
pressure swing adsorption; air separation; zeolite;
D O I
10.1007/BF00707354
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A novel rapid pressure swing adsorption (RPSA) process is described for production of 25-50% oxygen enriched air. The embodiment consists of one or more pairs of adsorbent layers contained in a single adsorption vessel. The layers undergo simultaneous pressurization-adsorption and simultaneous depressurization-purge steps. A total cycle time of 6-20 seconds is used. The process yields a very large specific oxygen production rate and a reasonable oxygen recovery for production of 20-50 mole% oxygen enriched gas. It is demonstrated by a simple mathematical model of isothermal single adsorbate pressure swing ad(de)sorption concept on a single adsorbent particle that the specific production rate of a PSA process cannot be indefinitely increased by reducing the cycle time of operation when adsorbate mass transfer resistances are finite.
引用
收藏
页码:313 / 320
页数:8
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