Cooperative effect of Fe and Ti species over Fe–Ti–Ox catalysts on the catalytic hydrolysis performance of hydrogen cyanide |
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| Authors: | Xinfeng Zhu Yanli Mao Hongpan Liu Haiyan Kang Biao Liu Zhongxian Song Xueping Liu Yifei Guo Huixian Du Qiulin Zhang |
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| Institution: | 1. Henan University of Urban Construction, Henan Province Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, 467000 People's Republic of China;2. College of Materials and Chemical Engineering, Chongqing University of Arts and Sciences, Chongqing, 402160 People's Republic of China;3. Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500 People's Republic of China |
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| Abstract: | FeOx, TiO2, and Fe–Ti–Ox catalysts were synthesized and used in the catalytic hydrolysis of hydrogen cyanide (HCN). Nearly 100% HCN conversion was achieved at 250 °C over the Fe–Ti–Ox catalyst. TiO2 rutile was detected over TiO2, but not over Fe–Ti–Ox, which suggested that the interaction between Fe and Ti species could inhibit the TiO2 phase transition. Furthermore, the interaction between Fe and Ti species over Fe–Ti–Ox could promote the selectivity of NH3 and CO. The mechanism of hydrolysis of HCN over FeOx, TiO2, and Fe–Ti–Ox can be given as follows: HCN + H2O → methanamide → ammonium formate → formic acid → H2O + CO. |
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| Keywords: | catalytic hydrolysis Fe–Ti–Ox HCN interaction reaction mechanism |
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