کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1280885 | 1497477 | 2014 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Methanol steam reforming in an Al2O3 supported thin Pd-layer membrane reactor over Cu/ZnO/Al2O3 catalyst Methanol steam reforming in an Al2O3 supported thin Pd-layer membrane reactor over Cu/ZnO/Al2O3 catalyst](/preview/png/1280885.png)
• Methanol steam reforming was performed in a composite Pd-based membrane reactor.
• High-grade hydrogen is produced from MSR in a Pd/Al2O3 MR with CO content <10 ppm.
• Methanol steam reforming was performed at low temperature.
In this experimental study, a membrane reactor housing a composite membrane constituted by a thin Pd-layer supported onto Al2O3 is utilized to perform methanol steam reforming reaction to produce high-grade hydrogen for PEM fuel cell applications. The influence of various parameters such as temperature, from 280 to 330 °C, and pressure, from 1.5 to 2.5 bar, is analyzed. A commercial Cu/Zn-based catalyst is packed in the annulus of the membrane reactor and the experimental tests are performed at space velocity equal to 18,500 h−1 and H2O:CH3OH feed molar ratio equal to 2.5:1. Results in terms of methanol conversion, hydrogen recovery, hydrogen yield and products selectivities are given. As a best result of this work, 85% of methanol conversion and a highly pure hydrogen stream permeated through the membrane with a CO content lower than 10 ppm were reached at 330 °C and 2.5 bar. Furthermore, a comparison between the experimental results obtained in this work and literature data is proposed and discussed.
Journal: International Journal of Hydrogen Energy - Volume 39, Issue 32, 31 October 2014, Pages 18702–18710