[2D15-19] C1 chemistry(2)

[2D15] Methane conversion over a Pt/Al₂O₃ catalyst using nitric oxide as an oxidant

○Tatsuya Yamasaki¹, Atsushi Takagaki¹, Yang Song², Xiaohong Li², Tetsuya Shishido³, Kyoko Bando⁴, Tetsuya Kodaira⁴, Junichi Murakami⁴, Jun Tae Song¹, Motonori Watanabe¹, Tatsumi Ishihara¹ (1. Kyushu University, 2. The University of Kitakyushu, 3. Tokyo Metropolitan University, 4. National Institute of Advanced Industrial Science and Technology)

The activation of methane with NO over Pt/Al₂O₃ was studied. In the temperature range of 300 450°C, using O₂ and N₂O as oxidants, only CO₂ and CO were formed, and no other oxygenates were detected. However, when NO was used, not only CO₂ and CO but also HCN and NH₃ were produced. While the activities of other precious metal catalysts (Pd, Rh, and Ru) were also evaluated, only Pt catalyst exhibited the high activity to HCN formation. The Pt catalyst was found to stably form HCN at 400℃ over 100h studied.

Keywords:Methane, Nitric oxide, Platinum catalyst