کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5134422 | 1492950 | 2017 | 9 صفحه PDF | دانلود رایگان |
- A novel porous carbon supported nickel catalyst is prepared via ion-exchange.
- The characteristics of Ni/RC rely on pH value and carbonization temperature.
- The catalyst is effective for reforming tarry materials in corncob gasification.
- Ni/RC is a potential candidate for H2-rich gas production from biomass.
A novel porous carbon catalyst was prepared by carbonization of D151 resin exchanged with nickel ion (Ni/RC). TEM images and XRD patterns manifest that nickel crystallite size (NCS) relies greatly on solution pH value and carbonization temperature. The as-prepared Ni/RC in pH 11 at 650 °C achieved the maximal specific surface area of 213 m2/g and metallic nickel particles are highly dispersed with a NCS of 5.7 nm. Ni/RC exhibited higher activity for corncob tar reforming than commercial Ni/Al2O3 and produced a gas yield of 46.8 mmol/g at 650 °C. The nickel particles growth above 650 °C causes the decline in catalytic activity of Ni/RC. In the presence of steam, a high tar-free gas of 84.5 mmol/g was obtained at 650 °C. This study sheds light on the possibility of Ni/RC as a promising candidate for H2-rich gas production from biomass under mild conditions.
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Journal: Journal of Analytical and Applied Pyrolysis - Volume 127, September 2017, Pages 82-90