RETRACTED: Catalyst deactivation in industrial combined steam and dry reforming of natural gas

This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).This article has been retracted at the request of the Editor-in-Chief.Figure 1 in the article partly duplicates Figure 1 of a paper that had already appeared in, THE CANADIAN JOURNAL OF CHEMICAL ENGINEERING, Operation of an industrial steam reformer under severe condition: A simulation study, 86 (2008) 747–755, 10.1002/cjce.20082Moreover this article contains incorrect factual statements about the Midrex process. There are also numerous instances in the paper where model results are inconsistent with the results from practical operation. As a result, the integrity of the paper and its results have been brought into question. Whist the authors have provided responses to the concerns raised, the explanations provided have not been found satisfactory by the editors.We regret that these problems were not detected before the article was accepted for publication in the journal.