Verfahren zum Regenerieren eines Reformers

摘要

The invention relates to a method for regenerating a reformer fed with a mixture of fuel and an oxidant having a mean air numberλ1 in continuous reformer operation, the air number being varied for the purpose of regenerating the reformer. In accordance with the invention it is provided for that regeneration occurs in a shutoff phase of the reformer in that the reformer is operated during several successive time intervals with an air numberλ2 higher than in reformer operation (λ2>λ1). Again in accordance with the invention it may be provided for that regeneration occurs in a starting phase of the reformer in that the reformer is continually operated with an air number increased as compared to reformer operationλ2>λ1 until a critical temperature threshold is attained. The invention relates furthermore to a system including a reformer and a controller for implementing a method in accordance with the invention.