Ammonia solid oxide fuel cell starting system and method of starting the same

Abstract

This invention relates to the field of ammonia fuel cell technology and discloses an ammonia solid oxide fuel cell start-up system and its start-up method. The system includes: an ammonia / start-up preheater, a tail gas / start-up burner, a feed heat exchanger, an anode, a cathode, and an air preheater. The ammonia / start-up preheater has an ammonia inlet. The ammonia / start-up preheater is connected to the feed heat exchanger and the tail gas / start-up burner. The feed heat exchanger is connected to the anode and the tail gas / start-up burner. The air preheater is connected to the cathode and the tail gas / start-up burner. The start-up system provided by this invention uses pure ammonia as fuel for direct combustion without introducing other fuels, greatly reducing carbon emissions. Simultaneously, the start-up burner and tail gas burner are designed as a single unit, fully utilizing the heat generated by hydrogen combustion in the anode tail gas to accelerate the combustion of pure ammonia. The start-up combustion function is achieved in the tail gas burner, reducing equipment requirements and saving fuel.

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