Bergwerksverband Gmbh

Foster Wheeler Energy Corporation

Licentia Patent-verwaltungs Gmbh

Deutsche Babcock Aktiengesellschaft

Nitrotec Corporation

Bergwerksvergand Gmbh

Karl K Knoblauch

Harald Juntgen

Heinrich Heimbach

Werner Korbacher

Ekkehard Richter

Horst Grochowski

Dieter Zundorf

Jurgen Schwarte

Werner Peters

Klaus Giessler

Heinrich Munzner

Hans-Jurgen Schroter

Ferdinand Tarnow

Hans-Jurgen Schmidt

Josef Degel

Joseph S D'Amico

Horst Lichtenberger

Burkhard Harder

Jurgen Reichenberger

Erwin Pilarczyk

Hans Bukowski

Herbert Reinhold

Ingo Romey

Jurgen Klein

Gunther Gappa

Georg Kolling

Rolf Noack

Klaus-Dirk Henning

Stefan Gramelt

Klaus Goldschmidt

Horst Schumacher

Horst Queiser

Klaus Wybrands

Klaus D Henning

Wolfgang Bongartz

Alois Ziegler

Alfons S-s Berndt

Klaus-Burkhard Harder

Helmut Kuhl

Rolf Schlegel

Charles F Cosentino

Heinz Heimbach

Dieter Zurawsky

Willy Stumpf

Hugo Horbel

Hans-Juergen Schroeter

Peter Kronauer

Klaus Glessler

Harald Juentgen

Process for the production of carbon molecular sieves

A process is disclosed for treating carbonaceous catalyst with a gaseous halogen or a gaseous halogen compound to increase the catalytic activity and prolong the useful life of the catalyst. The treatment of the catalyst is conducted at temperatures above about 150 degrees C., preferably with the use of an inert gas, which inert gas is flowed through the carbonaceous material, and which inert gas carries the gaseous halogen or the gaseous halogen compound to the carbonaceous material.

Process for manufacturing a carbonaceous catalyst for the reduction of

Process for helium enrichment

Process for helium recovery

Process for producing an active carbon catalyst

Method and apparatus for the removal of sulfur oxides and nitrogen oxides from exhaust gas with the addition of gaseous ammonia at temperatures between 110.degree. and 180.degree. C. The exhaust gas is led across carbon-containing adsorption agent flowing downwardly within a reactor, a portion of sulfur oxide initially being adsorptively removed in a upper part of a travelling bed, with nitrogen oxide catalytically reduced to nitrogen as well as further sulfur oxide being separated in a lower part of the travelling bed. Unloaded adsorption agent is delivered to the upper bed part, partially loaded adsorption agent is removed from that bed part and delivered to the lower bed part without mingling, loaded adsorption agent is removed from the lower bed part and led to a regeneration, after which it is delivered to the upper bed part.

Method for the removal of sulfur oxide and nitrogen oxide from exhaust

Process for producing carbon molecular sieves

Activated coke method of removing nitrogen oxides from exhaust gases

Sulphur is manufactured out of sulphur dioxide containing gases by dividing the feed gas in two flows of gas having a volume ratio of 2 to 1 and reducing the greater flow of gas on a carbon containing substance like anthracite, thereby obtaining hydrogen sulfide which is mixed with the smaller flow of gas, the mixture being converted in a Claus process to sulphur.

Method of manufacturing sulphur from SO.sub.2 containing gases

Pressure swing adsorption with increased recovery of a highly adsorbable product gas component is carried out with a cycling in which, during the flushing phase, and at least over the latter portion thereof, the flushing gas has a concentration in the product gas component which is substantially equal to that of the product gas. To further increase the yield and the concentration of the product gas component in the product gas, the pressure in the absorber is reduced over a time period between the termination of the adsorption phase and the beginning of the desorption phase, with the effluent gas during this reduction in pressure being reused in the pressure swing adsorption cycle.

Method of separating highly adsorbable components in a gas stream in a

A simple, inexpensive method of inerting transport containers, particularly for goods which easily spoil in the air, such as foodstuffs, plants and flowers, by a gas which contains nitrogen and a predetermined concentration of up to about 5 vol. % oxygen is made possible in the manner that air is conducted, in a cyclic pressure-change adsorption process, through a layer of adsorbent in which the oxygen in the air is adsorbed on the adsorbent in each case during an adsorption step at a pressure above atmospheric pressure and a nitrogen-rich gaseous mixture still containing oxygen which discharges at the end of the layer of adsorbent is conducted into the transport container to be inerted, and the adsorbed oxygen of the air is desorbed in each case during the desorption steps by reducing the pressure of the adsorbent and, finally, the next adsorption step is started, a multiple of the predetermined quantity of air necessary to maintain the desired oxygen content flowing in the adsorption steps through the layer of adsorbent in a first inerting phase and one time said the quantity of air flowing through it in a second inerting phase.

Method and apparatus for inerting transport containers

A process of and apparatus for producing oxygen with a low fraction of argon from a gaseous medium like air, in which a gaseous medium is introduced into a first adsorption unit to produce an intermediate gas enriched with oxygen and depleted of argon. The intermediate gas is then supplied to a second adsorption unit in which the final product gas is prepared as well as a by-product which is returned into the process. Each of the adsorption units includes at least two adsorbers operating in a working cycle wherein the working cycle of the adsorbers of the second unit lasts about twice as long as the working cycle of the adsorbers of the first unit. For allowing an evacuation of each adsorber and thus a regeneration thereof, a common vacuum pump is connected to each unit in such a manner that the regeneration of the adsorbers of the second unit is temporarily interrupted when one of the adsorbers of the first unit is evacuated.

Process and apparatus for producing oxygen with a low proportion of

A gas mixture containing significant proportions of nitrogen and oxygen, such as atmospheric air, is alternately passed through two adsorbers containing a carbonaceous molecular sieve such as comminuted coke. With one-minute half-cycles, each half-cycle encompasses a production phase of 55 seconds during which the gas mixture is driven under high pressure through one adsorber with recovery of high-purity nitrogen therefrom while the other adsorber is being exhausted or vented in a regeneration phase. During a small fraction of the remaining 5 seconds of this half-cycle, preferably lasting between 0.3 and 0.7 second, the two adsorbers are interconnected for a partial equalization of their pressures. In the final period of slightly more than 4 seconds, the regeneration phase of the first adsorber begins while the second adsorber is pressurized with fresh gas mixture, its outlet being closed at that time. The next half-cycle starts with that outlet being opened to enable the discharge of further high-purity nitrogen.

Process for recovering nitrogen from oxygen-containing gas mixtures

A pressure-swing adsorption system is used to enrich the methane content of mine gas obtained from bores around mine shafts or galleries from the customary 25 to 45% by volume to a product gas quality of 50% by volume. Using a carbon molecular sieve adsorbent, the adsorption is carried out at 5 to 8 bar and is followed by a uniflow expansion to an intermediate pressure and a counterflow expansion to a flushing pressure of 1.1 to 2 bar. Counterflow flushing is carried out with waste gas and the product gas is a mixture of the gases obtained by counterflow expansion and flushing.

Method of producing a methane-rich gas mixture from mine gas

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Essen, Germany

Karl K Knoblauch