کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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206434 | 461185 | 2011 | 4 صفحه PDF | دانلود رایگان |
The use of Pd-based sorbents for high temperature removal of AsH3 from gasified coal was investigated using a simulated gas feed. A sorbent consisting of 5 wt% Pd on alumina beads has been tested for AsH3 removal from synthetic fuel gas (CO, CO2, H2) at 204 and 288 °C. Arsenic uptake was found to be essentially linear with exposure time and considerably higher than that for unpromoted alumina beads. Arsenic loadings in excess of 7 wt% were achieved, though the sorbent is unlikely to be saturated at this loading. As the arsenic loading on the sorbent increased a PdAs2 phase was identified in the XRD pattern. The adsorption of arsine on palladium has potential implications for catalysts, electrodes, and membranes for the separation of hydrogen from fuel gas.
Journal: Fuel - Volume 90, Issue 10, October 2011, Pages 3118–3121