| Title | Direct production of flexible H-2/CO synthesis gas in a solid electrolyte membrane reactor |
|---|---|
| Authors | de Lucas-Consuegra, A. , Gutierrez-Guerra, N. , Endrino, J. L. , SERRANO RUIZ, JUAN CARLOS, Valverde, J. L. |
| External publication | Si |
| Means | J. Solid State Electrochem. |
| Scope | Article |
| Nature | Científica |
| JCR Quartile | 2 |
| SJR Quartile | 2 |
| JCR Impact | 2.327 |
| SJR Impact | 0.643 |
| Web | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84943200741&doi=10.1007%2fs10008-015-2922-8&partnerID=40&md5=78c9404df5bf558213c41aea6d7b45ac |
| Publication date | 01/10/2015 |
| ISI | 000362335900010 |
| Scopus Id | 2-s2.0-84943200741 |
| DOI | 10.1007/s10008-015-2922-8 |
| Abstract | The development of novel configurations for the production of synthesis gas (syn-gas) of flexible H-2/CO ratio is of great importance to reduce the cost for the synthesis of synfuels and high-value chemicals. In this work, we propose a radically novel approach to the direct production of syn-gas with flexible H-2/CO ratio based on the solid electrolyte membrane reactor (SEMR). For that purpose, a single-chamber solid electrolyte membrane reactor based on yttria-stabilized zirconia (YSZ) has been developed (Pt/YSZ/Pt), where both active Pt catalysts-electrodes were exposed to the same reaction atmosphere (C2H5OH/H2O = 0.7 %/2 %). The application of different polarizations at temperature range (600-700 A degrees C) allows to control the H-2/CO ratio of the obtained syn-gas, i.e., the ratio was varied between 1.5 and 12 under polarization conditions. Unlike conventional catalytic partial oxidation processes, the H-2/CO adjustment was managed without the requirement of external O-2 feeding to the reactor. An increase in the applied current or potential caused the H-2/CO ratio to increase vs. the open-circuit conditions where ethanol reforming occurred on the Pt catalyst-electrodes which is due to an increase in the rate of the electro-catalytic processes. On the other hand, a decrease in the H-2/CO ratio at a fixed potential was achieved at higher temperatures due to the further reaction of the produced H-2 with the rest of the species present in the gas phase, leading to a decrease in the faradaic efficiency. The proposed configuration may be of great interest especially for biorefinery applications where H-2, syn-gas and electricity may be produced from bioethanol. |
| Keywords | H-2 production; Syn-gas production; Solid electrolyte membrane reactor; SEMRs; Steam electrolysis; Control H-2/CO ratio |
| Universidad Loyola members |