| Titre : | Thermally driven copper oxide redox cycle for the separation of oxygen from gases (2012) |
| Auteurs : | M. Hanchen, Auteur ; A. Stiel, Auteur ; Z. R. Jovanovic, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 51 N° 20, Mai 2012) |
| Article en page(s) : | pp. 7013–7021 |
| Note générale : | Industrial chemistry |
| Langues : | Anglais |
| Tags : | Copper Oxide Separation oxygen gases |
| Résumé : | The copper(I) oxide (Cu2O)/copper(II) oxide (CuO) redox thermochemical cycle is thermodynamically and experimentally examined as means for removal of oxygen from dilute gas streams. The thermal energy required for removal of oxygen from a 1% O2–Ar gas mixture is estimated to range from 545 to 2121 kJ/mol O2. Temperatures as high as 1350 K imposed by this thermochemical cycle offer potential for using concentrated solar energy as the source of process heat. The kinetics of the redox reactions and their cycle-to-cycle repeatability were investigated by thermogravimetry. Laboratory scale packed bed reactor tests have pointed out the bulk shrinking of the packing during the initial high temperature cycles as a cause of gas bypassing that may have adverse effects on the reactor contacting efficiency. |
| ISSN : | 0888-5885 |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie202474s |
