Patent ID: 7682832
Filing Date: 2010-03-23
Classification: C01B,C01C,G01N,H01M,Y02A,Y02E,Y10T

Abstract:
1. A method for controlling the flow of hydrogen and ammonia from a hydrogen generator during a breakthrough, the method comprising: providing a housing forming a chamber, the housing having an inlet and outlet and comprising an expansion or optical sensor; placing hydrated copper (II) chloride in the chamber of the housing, the hydrated copper (II) chloride having a first volume; moving the flow of hydrogen and ammonia through the inlet of the housing and into the hydrated copper (II) chloride placed in the chamber of the housing, wherein the hydrated copper (II) chloride expands to a second volume when at least a breakthrough concentration of ammonia within the flow reacts with the hydrated copper (II) chloride; automatically activating a valve to stop the flow of hydrogen and ammonia from the outlet of the housing when the hydrated copper (II) chloride is at least at the second volume detecting expansion of hydrated copper (II) chloride to the second volume with the expansion or optical sensor.