The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 18, 1989
Filed:
Jul. 15, 1988
Piotr J Sadkowski, Ash, GB;
The BOC Group, plc, Windlesham, GB;
Abstract
A compressed gas mixture, particularly air, is separated in absorbent beds 6 and 8 in turn. The adsorbent adsorbs a first component in preference to, or more rapidly than, second and third components. Accordingly, product gas rich in the second component is delivered to the pipeline 44. While one bed adsorbs the first component from compressed gas mixture, the other is regenerated by being placed in communication with the atmosphere through vent pipe 30. At the end of each adsorption step, the respective bed 6 or 8 is placed in communication with a bed 12 of adsorbent that adsorbs the second component more rapidly than, or in preference to, the first and third components, and the pressure between the two beds is equalized. The pressure between the beds 6 and 8 is then equalized. Unadsorbed gas comprising the first and third components is vented from bed 12 to the atmosphere and then the bed 12 is placed in communication with either bed 6 or bed 8 to cause the desired product, i.e. the second component to be desorbed from bed 12 and to enter the bed 6 to 8. The venting of the third component to the atmosphere reduces the content thereof the second component product.