- Tytuł:
- Ca-Modified Co/SBA-15 Catalysts for Hydrogen Production through Ethanol Steam Reforming
- Autorzy:
-
Chiou, J. Y. Z.
Liu, S. W.
Ho, K. F.
Huang, H. H.
Tang, Ch. W.
Wang, Ch. B. - Powiązania:
- https://bibliotekanauki.pl/articles/411682.pdf
- Data publikacji:
- 2014
- Wydawca:
- Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
- Tematy:
-
cobalt catalysts
ethanol
steam reforming - Opis:
- Hydrogen production through steam reforming of ethanol (SRE) over the Ca-modified Co/SBA-15 catalysts was studied herein to evaluate the catalytic activity, stability andthebehavior of coke deposition.The Ca-modified SBA-15 supports were prepared from the Ca(NO3)2•4H2O (10 wt%) which was incorporated to SBA-15 by incipient wetness impregnation (assigned as Ca/SBA-15) and direct hydrothermal (assigned as Ca-SBA-15) method. The active cobalt species from the Co(NO3)2•6H2O (10 wt%) was loaded to SiO2, SBA-15 and modified-SBA-15 supports with incipient wetness impregnation method to obtain the cobalt catalysts (named as Co/SiO2, Co/SBA-15, Co-Ca/SBA-15 and Co/Ca-SBA-15, respectively). The prepared catalysts were characterized by using X-ray diffraction (XRD), temperature programmed reduction (TPR), transmission electron microscopy (TEM) and BET.The catalytic performance of the SRE reaction was evaluated in a fixed-bed reactor.The results indicated that the Co/Ca-SBA-15 catalystwas preferential among these catalysts and the ethanol can be converted completely at 375 °C. The hydrogen yield (YH2) approached 4.76 at 500 °C and less coke deposited. Further, the long-term stabilitytest of this catalyst approached100h at 500 °C and did not deactivate.
- Źródło:
-
International Letters of Chemistry, Physics and Astronomy; 2014, 5; 1-16
2299-3843 - Pojawia się w:
- International Letters of Chemistry, Physics and Astronomy
- Dostawca treści:
- Biblioteka Nauki
Artykuł