Electrochemical cell and method of processing a gaseous stream containing oxygen

An electrochemical cell 1 comprising an anodic half-cell 6 having an inlet 2 receiving hydrogen at a first pressure, a cathodic half-cell 5 having an outlet 3 transferring hydrogen at a second pressure, and a power source. A membrane electrode assembly (MEA) 4 separates the half-cells and comprises...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	Jan-Justus Schmidt, Antonio Filpi, Sean Crawford Chapman, Daniele Procaccio, Alessandro Cappelletti, Lazarus Diamond
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR CHEMISTRY COMPOUNDS THEREOF ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS INORGANIC CHEMISTRY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING METALLURGY NON-METALLIC ELEMENTS PHYSICS TESTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	An electrochemical cell 1 comprising an anodic half-cell 6 having an inlet 2 receiving hydrogen at a first pressure, a cathodic half-cell 5 having an outlet 3 transferring hydrogen at a second pressure, and a power source. A membrane electrode assembly (MEA) 4 separates the half-cells and comprises anodic and cathodic electrodes separated by an anion exchange membrane (AEM). The MEA may comprise one or more catalysts, which may be platinum group metals. The AEM may comprise hygroscopic particles arranged in a concentration gradient with a higher concentration on the cathodic side. The power source is preferably reverse pulse, allowing purge of poisons from the electrodes. Also disclosed are an oxygen sensor and apparatus for stripping oxygen from a gaseous stream, each comprising the cell.