Crystallite size effect in the selective oxidation of butene to butadiene on iron oxide. 2. Reaction studies

B. L. Yang, Franklin Chau-Nan Hong, H. H. Kung

研究成果: Article同行評審

22 引文 斯高帕斯(Scopus)

摘要

The selective oxidation of 1-butene to butadiene was studied over a series of silica-supported and unsupported iron oxide catalysts of average crystallize sizes ranging from 2.5 to 61 nm. The reaction was studied at 300, 350, and 375°C under conditions that resulted in low conversions. The selectivity for butadiene ranged from about 80% to below 50%. In general, it was higher for catalysts of smaller crystallite sizes and lower for larger crystallize sizes. The areal rate appeared to have a small dependence on the crystallite size. However, this trend could be due to the fact that the iron oxide surface areas were calculated by using the average crystallite sizes, which did not properly account for the different crystallite size distributions. Possible explanations for the variation of selectivity with crystallize sizes were discussed.

原文English
頁(從 - 到)2531-2534
頁數4
期刊Journal of Physical Chemistry
88
發行號12
DOIs
出版狀態Published - 1984 1月 1

All Science Journal Classification (ASJC) codes

  • 工程 (全部)
  • 物理與理論化學

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