| 摘要 |
A vessel containing a catalytic bed for an endothermic reaction for processing hydrocarbon fuel in a fuel cell, such as a hydrocarbon/steam reform reaction, is coaxially disposed inside a vessel containing a catalytic bed for the exothermic water/gas shift conversion reaction. Start up heat required to bring the shift converter catalytic bed up to operating temperature is provided by the primary heat supply of the endothermic reaction, such as an adjacent hydrogen burner or a flow of hot exhaust from a remote burner, thereby eliminating the need for shift converter start up heaters. In one embodiment, burner air flows between the primary heat and the shift converter bed during normal running operation, the flow of burner air being bypassed for an improved heat transfer to the shift converter bed during start-up.
|
