Bergwerksverband Gmbh

Ferdinand Tarnow

Heinrich Heimbach

Karl K Knoblauch

Hans J Schroter

Harald Juntgen

Klaus-Dirk Henning

Hans-Jurgen Schroter

Jurgen Reichenberger

Alfons Schulte-Schulze Berndt

Alfons S-s Berndt

Process for the production of carbon molecular sieves

Process for obtaining nitrogen from air or nitrogen-containing gases by

Process to obtain nitrogen from gas mixtures containing oxygen and nitrogen by using alternating pressure adsorption on carbon molecular sieves, which comprises an adsorption cycle and a desorption cycle, in which the desorption cycle--which may also include the pressure equalization step--includes an idle time, which amounts to between 20 and 80% of the total time of the desorption cycle, plus a correspondingly shortened desorption step, whereby the adsorber decompression line is completely opened at the beginning of the desorption step and is completely closed and kept tightly closed after the decompression to ambient pressure during the subsequent idle period.

Process for at least partially separating a gaseous component from a

Process for producing carbon molecular sieves

The present process is an improvement of an earlier process wherein a nitrogen enriched gas is obtained from a gas containing oxygen and possibly other components. In that process the feed gas is passed in a continuous flow cycle through an adsorber containing carbonaceous molecular sieve coke followed by evacuation of the adsorber, oxygen and possibly other gas components being adsorbed and the discharged nitrogen-enriched gas being collected until the continually rising oxygen contents thereof reaches a predetermined limit value whereupon the molecular sieve coke is desorbed of the residual gases prior to the next charging cycle. The present improvement is constituted by the feature that the flow of feed gas through the molecular sieve coke is effected at a continually increasing pressure until a terminal pressure of about 3 to 10 bar has been reached.

Process for the recovery of nitrogen-rich gases from gases containing at

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Duisburg, Germany

Ferdinand Tarnow