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Titre: PROCESS FOR SEPARATING SO2 and NOx Auteur:Juentgen, Harald; Peters, Werner; Knoblauch, Karl; Richter, Ekkehard; Grochowski, Horst Date:
16 January 1986
Sujet:Performing Operations ; Transporting ; Physical OR Chemical Processes OR Apparatus In General ; Separation ; General Tagging Of NEW Technological Developments ; General Tagging Of Cross-Sectional Technologies Spanning Over Several Sections Of The Ipc ; Technical Subjects Covered By Former Uspc Cross-Reference Art Collections [Xracs] And Digests ; Technologies OR Applications FOR Mitigation OR Adaptation Againstclimate Change ; Technologies FOR Adaptation To Climate Change ; Medicine ; Sciences ; Chemistry Description:
A process for separating SO2 and NOx, especially from combustion gases, in which the first stage is to separate the majority of the SO2 and a small proportion of the NOx from the combustion gas, and the second stage is to separate the majority of the NOx from the combustion gas by catalysis using activated carbon or activated coke with the addition of ammonia, and to separate the residual SO2 by reaction with the ammonia. The active carbon/active coke is fed into a reactor, and the loaded adsorption agent is removed from the reactor and regenerated thermally or by washing. The adsorption agent can also be passed through a sieve and again fed into the reactor, after separation of the ammonium sulphate, for the purpose of reuse. Ammonia can be recovered from the washing water of the active carbon/active coke washing operation as well as from the ammonium sulphate which has been passed through the sieve, after which it can be returned to the separation process. Dans le procédé de séparation de SO2 et NOx, en particulier des gaz de combustion, on retire, dans une première étape du gaz de combustion, la quantité principale de SO2 et une partie plus faible de NOx et on sépare dans une seconde étape la quantité principale de NOx à partir du gaz de combustion, par catalyse, sous addition d'ammoniac, au moyen de charbon activé ou de coke activé et le reste de SO2 par réaction avec l'ammoniac. On introduit le charbon activé ou le coke activé dans un réacteur, on prélève du réacteur le produit adsorbant chargé et on le régénère thermiquement ou par lavages. On peut aussi faire passer l'adsorbant sur un tamis et après séparation du sulfate d'ammonium, l'introduire de nouveau dans le réacteur pour la prochaine charge. On peut récupérer l'ammoniac des eaux de lavage du charbon ou du coke activé ainsi que du sulfate d'ammonium provenant du tamisage et le réintroduire dans le circuit du procédé.
Titre: PROCESS FOR SEPARATING SO 2? and NO x? Auteur:Juntgen, Harald; Peters, Werner; Knoblauch, Karl; Richter, Ekkehard; Grochowski, Horst Date:
23 July 1986
Sujet:Performing Operations ; Transporting ; Physical OR Chemical Processes OR Apparatus In General ; Separation ; General Tagging Of NEW Technological Developments ; General Tagging Of Cross-Sectional Technologies Spanning Over Several Sections Of The Ipc ; Technical Subjects Covered By Former Uspc Cross-Reference Art Collections [Xracs] And Digests ; Technologies OR Applications FOR Mitigation OR Adaptation Againstclimate Change ; Technologies FOR Adaptation To Climate Change ; Medicine ; Sciences ; Chemistry Description:
Dans le procédé de séparation de SO2 et NOx, en particulier des gaz de combustion, on retire, dans une première étape du gaz de combustion, la quantité principale de SO2 et une partie plus faible de NOx et on sépare dans une seconde étape la quantité principale de NOx à partir du gaz de combustion, par catalyse, sous addition d'ammoniac, au moyen de charbon activé ou de coke activé et le reste de SO2 par réaction avec l'ammoniac. On introduit le charbon activé ou le coke activé dans un réacteur, on prélève du réacteur le produit adsorbant chargé et on le régénère thermiquement ou par lavages. On peut aussi faire passer l'adsorbant sur un tamis et après séparation du sulfate d'ammonium, l'introduire de nouveau dans le réacteur pour la prochaine charge. On peut récupérer l'ammoniac des eaux de lavage du charbon ou du coke activé ainsi que du sulfate d'ammonium provenant du tamisage et le réintroduire dans le circuit du procédé. A process for separating SO2 and NOx, especially from combustion gases, in which the first stage is to separate the majority of the SO2 and a small proportion of the NOx from the combustion gas, and the second stage is to separate the majority of the NOx from the combustion gas by catalysis using activated carbon or activated coke with the addition of ammonia, and to separate the residual SO2 by reaction with the ammonia. The active carbon/active coke is fed into a reactor, and the loaded adsorption agent is removed from the reactor and regenerated thermally or by washing. The adsorption agent can also be passed through a sieve and again fed into the reactor, after separation of the ammonium sulphate, for the purpose of reuse. Ammonia can be recovered from the washing water of the active carbon/active coke washing operation as well as from the ammonium sulphate which has been passed through the sieve, after which it can be returned to the separation process.
Titre: RECOVERY OF GASES FROM GASEOUS MIXTURES Auteur:Muenzner, Heinrich; Horbel, HUGO; Knoblauch, Karl; Koerbaecher, Werner; Peters, Werner; Juentgen, Harald Date:
26 August 1980
Sujet:Performing Operations ; Transporting ; Physical OR Chemical Processes OR Apparatus In General ; Separation ; Chemistry ; Metallurgy ; Inorganic Chemistry ; NON-Metallic Elements ; Compounds Thereof ; Medicine ; Sciences ; Chemistry ; Chemistry Description:
A process and and arrangement for converting air into a gaseous mixture enriched with nitrogen includes passing a first stream of air through an adsorber which preferentially adsorbs oxygen from the admitted first stream and thereby discharges a second stream of a gaseous mixture having a higher proportion of nitrogen as compared with the first stream. Control means are positioned in the second stream to measure the oxygen content of the continuously discharging second stream and terminates the discharge of the same when the oxygen content thereof exceeds a predetermined value. Residual amounts of gaseous mixture are then evacuated from the adsorber. An additional adsorber is connected with the first-mentioned adsorber to form a first stage with each adsorber being alternately charged with air in a cyclical operation. Additional stages are connected in series so that the effluent nitrogen-enriched gaseous mixture can be further enriched to a final desired value.
Titre: RECOVERY OF GASES FROM GASEOUS MIXTURES Auteur:Muenzner, Heinrich; Horbel, HUGO; Knoblauch, Karl; Koerbaecher, Werner; Peters, Werner; Juentgen, Harald Date:
26 August 1980
Sujet:Medicine ; Sciences ; Chemistry Description:
A process and and arrangement for converting air into a gaseous mixture enriched with nitrogen includes passing a first stream of air through an adsorber which preferentially adsorbs oxygen from the admitted first stream and thereby discharges a second stream of a gaseous mixture having a higher proportion of nitrogen as compared with the first stream. Control means are positioned in the second stream to measure the oxygen content of the continuously discharging second stream and terminates the discharge of the same when the oxygen content thereof exceeds a predetermined value. Residual amounts of gaseous mixture are then evacuated from the adsorber. An additional adsorber is connected with the first-mentioned adsorber to form a first stage with each adsorber being alternately charged with air in a cyclical operation. Additional stages are connected in series so that the effluent nitrogen-enriched gaseous mixture can be further enriched to a final desired value.