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言語:
eng - English
日付:
2007-06-192001
出版の状態:
出版
ページ:
-
出版情報:
-
目次:
This chapter presents iron-modified zeolites and ordered mesoporous oxides as catalysts for the sulfur dioxide oxidation in sulfur-rich gases. Both zeolitic materials and mesoporous oxides exhibit very good activity in this reaction. Other than solid state or incipient wetness loaded MCM-41 materials, the zeolites do not show an initial loss of activity. However, they loose activity upon prolonged exposure to reaction conditions around 700°C. The zeolitic samples are analyzed through X-ray absorption spectroscopy, and the deactivation could be related to the removal of iron from framework sites to result in the formation of hematite-like species. If the iron can be stabilized in the framework, these materials could be an interesting alternative to other iron-based catalysts for the commercial application in sulfur-rich gases.
査読:
査読あり
学位:
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