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Natural gas steam reforming reaction at low temperature and pressure conditions for hydrogen production via Pd/PSS membrane reactor
| Content Provider | Semantic Scholar |
|---|---|
| Author | Anzelmo, Bryce Wilcox, Jennifer Liguori, Simona |
| Copyright Year | 2017 |
| Abstract | Abstract The objective of this work is to analyze the performance of a composite palladium-based membrane reactor (MR) by performing the natural gas steam reforming reaction at low operating conditions for producing high-purity hydrogen. The MR comprises a composite membrane, having ~13 µm Pd layer deposited on a porous stainless steel support, fabricated via electroless plating and a commercial Ni-based catalyst. The composite membrane shows infinite ideal selectivity, H 2 /He and H 2 /Ar, at trans-membrane pressures less than 100 kPa and T=400 °C at the onset of experimental testing. The steam reforming reaction is performed at 400 °C, by varying the reaction pressures and sweep gas flow rate between 150 kPa and 300 kPa, and 0–100 mL/min, respectively. The gas hourly space velocity (GHSV) and steam-to-carbon ratio (S/C) are kept constant at 2600 h −1 and 3.5. The effect of CO 2 as an impurity in the feed line is also analyzed at 400 °C and 150 kPa. The best performance of the Pd-based MR is obtained at 400 °C, 300 kPa and 100 mL/min of sweep-gas, yielding a methane conversion of 84%, hydrogen recovery of 82%, and obtaining a pure hydrogen stream at the permeate side. The Pd/PSS MR worked for more than 700 h under differing operating conditions. As a comparison, a conventional reactor operating at the same MR conditions is compared and discussed. |
| Starting Page | 343 |
| Ending Page | 350 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.memsci.2016.09.029 |
| Alternate Webpage(s) | https://users.wpi.edu/~jlwilcox/documents/2017-Anzelmo.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.memsci.2016.09.029 |
| Volume Number | 522 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
