Process for regenerating nitrogen-treated carbonaceous chars...

Details Process for regenerating nitrogen-treated carbonaceous chars... Process for regenerating nitrogen-treated carbonaceous chars...

B - Operations, Transporting

01

J

B01J 21/20 (2006.01) B01D 53/52 (2006.01) B01D 53/86 (2006.01) B01D 53/96 (2006.01) B01J 20/34 (2006.01) B01J 21/18 (2006.01)

Patent

CA 2180476

A process is provided for the restoration of hydrogen sulfide removal capacity in nitrogen-treated carbonaceous chars which have become exhausted for hydrogen sulfide capacity when used for the removal of hydrogen sulfide from gas streams containing oxygen and water. This process entails washing the spent carbonaceous char with water of sufficient quantity to remove the majority of the hydrogen sulfide reaction products. By the use of this process a significant proportion of the original hydrogen sulfide capacity of the nitrogen-treated carbonaceous char is recovered.

L'invention a pour objet un procédé permettant de rétablir la capacité d'extraction d'acide sulfhydrique dans des charbons carbonés traités à l'azote et dont la capacité d'extraction d'acide sulfhydrique a été épuisée lorsqu'ils ont été utilisés pour extraire l'acide sulfhydrique de flux de gaz renfermant de l'oxygène et de l'eau. Ce procédé consiste à laver le charbon carboné utilisé, avec une quantité d'eau suffisante pour extraire la majorité des produits de réaction de l'acide sulfhydrique. Ce procédé permet de redonner au charbon carboné traité à l'azote une proportion importante de sa capacité d'origine à extraire l'acide sulfhydrique.

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