Departament de Química Inorgànica, Universitat de Barcelona, Barcelona, Spain.
Bioresour Technol. 2011 Feb;102(3):3419-23. doi: 10.1016/j.biortech.2010.10.021. Epub 2010 Oct 12.
The aim of this study was to investigate biohydrogen production from biofuel-reforming processes using new multi-component bulk-type cobalt-based catalysts. The addition of different components to improve the catalytic performance was studied. Monometallic cobalt catalyst and catalysts containing Ru (ca. 1%) and/or Na (ca. 0.5%) were characterized and tested in the 623-673 K temperature range in ethanol steam reforming (ESR) with a steam/carbon ratio (S/C) of 3. The catalysts showed a high performance for hydrogen production and, except for H(2) and CO(2), only small amounts of by-products were obtained, depending on the temperature and the catalyst used. The catalyst containing both Ru and Na (Co-Ru(Na)) showed the best catalytic behavior in ESR. It operated stably for at least 12 days under cycles of oxidative steam reforming of glycerol/ethanol mixtures (S/C=2) and activation under O(2).
本研究旨在利用新型多组分块状钴基催化剂探索生物燃料重整过程中的生物制氢。研究了添加不同成分以改善催化性能的情况。在乙醇蒸汽重整（ESR）中，在 623-673 K 的温度范围内，以蒸汽/碳比（S/C）为 3，对单金属钴催化剂以及含有 Ru（约 1%）和/或 Na（约 0.5%）的催化剂进行了表征和测试。这些催化剂在氢气生成方面表现出了很高的性能，除了 H(2)和 CO(2)之外，仅根据温度和催化剂的不同得到少量副产物。同时含有 Ru 和 Na 的催化剂（Co-Ru(Na)）在 ESR 中表现出了最佳的催化性能。它在甘油/乙醇混合物的氧化蒸汽重整（S/C=2）循环以及在 O(2)下的活化过程中，至少稳定运行了 12 天。
