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Reply to the Comment on “on the role of promoters in promoted iron catalysts used in the industrial synthesis of ammonia”

✍ Scribed by K.C. Waugh

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
206 KB
Volume
181
Category
Article
ISSN
0009-2614

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✦ Synopsis

The suggestion, made by Muhler, Nielsen and Fastrup, that the adsorption ofoxygen on to the reduced, triply promoted, fused, iron ammonia-synthesis catalysts would have poisoned the adsorption of molecular nitrogen into the a,, and az states has been examined and has been shown not to be the case. The original premise of the original paper [ Chem. Phys. Letters 17 1 ( 1990) 4621 that the technique of temperature-programmed desorption can be used to determine the surface coverage of adsorbates under reaction conditions, has been re-exammed, it being concluded that the method cannot provide this information.

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On the role of promoters in promoted iro
On the role of promoters in promoted iron catalysts used in the industrial synthesis of ammonia
✍ H.D. Vandervell; K.C. Waugh 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 597 KB

The surface structure and atomic composition of triply promoted (KzO/A120,/Ca0) fused iron catalysts, used in the industrial synthesis of ammonia, have been examined by temperature-programmed desorption (i) after having been reduced in hydrogen and (ii) after having synthesised ammonia from a hydrog