کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
53791 | 46984 | 2016 | 8 صفحه PDF | دانلود رایگان |
• Dolomite is suitable support for toluene steam reforming.
• Catalytic activity was enhanced by addition of Mn on Ni/dolomite.
• The stable catalytic performance and no carbon deposition of Ni–Mn/dolomite catalyst were observed.
The catalytic activity and carbon deposition for toluene steam reforming were investigated by adding promoters such as K, Ca and Mn on 10 wt% Ni-based catalysts. The toluene steam reforming experiments were carried out at temperature of 800 °C under S/C ratio = 3. Catalyst characteristics were evaluated using XRD, BET, TPR and TGA. Ni/dolomite showed the highest hydrogen production and the toluene conversion efficiency to CO and CO2 among the catalysts. A slight enhancement effect was observed by adding K or Ca. By adding Mn on Ni/dolomite, the better toluene conversion efficiency to CO and CO2 was obtained than K and Ca and maintained constantly because of the resistance of carbon deposition. Conclusively, the addition of Mn on Ni/dolomite could give the stable catalytic activity for toluene steam reforming by suppressing the carbon deposition.
Stability study of Ni–Mn/dolomite catalyst.Figure optionsDownload high-quality image (118 K)Download as PowerPoint slide
Journal: Catalysis Today - Volume 265, 1 May 2016, Pages 95–102