Synthesis gas production from bio-oil: steam reforming of ethanol as a model compound

RSC Advances ◽  
2014 ◽  
Vol 4 (72) ◽  
pp. 37964-37972 ◽  
Author(s):  
S. Pavlova ◽  
P. Yaseneva ◽  
V. Sadykov ◽  
V. Rogov ◽  
S. Tikhov ◽  
...  
Keyword(s):  
Synthesis Gas ◽  
Steam Reforming ◽  
Model Compound ◽  
Gas Production ◽  
Ethanol Steam Reforming ◽  
Syngas Production ◽  
Monolithic Catalysts ◽  
Steam Reforming Of Ethanol ◽  
Bio Oil ◽  
Ethanol Steam

Syngas production via ethanol steam reforming has been studied over solid Ru/Ce0.5Zr0.5O2 and alumina supported Ru/Ce0.4Zr0.4Sm0.2O2 as granulated and monolithic catalysts.

scholarly journals Thermodynamic comparison between bio-oil and ethanol steam reforming

2015 ◽  
Vol 40 (46) ◽  
pp. 15963-15971 ◽  
Author(s):  
Carolina Montero ◽  
Lide Oar-Arteta ◽  
Aingeru Remiro ◽  
Aitor Arandia ◽  
Javier Bilbao ◽  
...  
Keyword(s):  
Steam Reforming ◽  
Ethanol Steam Reforming ◽  
Bio Oil ◽  
Ethanol Steam

Ni-Co-Zn-Al Catalysts From Hydrotalcite-Like Precursors for Hydrogen Production by Ethanol Steam Reforming

2010 ◽  
Author(s):  
Gianguido Ramis ◽  
Guido Busca ◽  
Tania Montanari ◽  
Michele Sisani ◽  
Umberto Costantino
Keyword(s):  
Steam Reforming ◽  
Mixed Oxide ◽  
Mixed Oxides ◽  
Catalyst Surface ◽  
Spinel Phase ◽  
Ethanol Steam Reforming ◽  
Temperature Range ◽  
Mixed Oxide Catalysts ◽  
Steam Reforming Of Ethanol ◽  
Ethanol Steam

A series of well crystallized Ni-Co-Zn-Al LDHs materials has been prepared by the urea hydrolysis method as precursors of mixed oxide catalysts for the Ethanol Steam Reforming (ESR) reaction. The calcination of the layered precursors gives rise to high surface area mixed oxides, mainly a mixture of rock-salt phase (NiO), wurtzite phase (ZnO) and spinel phase. Both precursors and mixed oxides have been throughtfully characterized and the steam reforming of ethanol has been investigated over the calcined catalysts in flow reactor and in-situ FT-IR experiments. The data here reported provide evidence of the good catalytic activity of Co-Zn-Al and Co-Ni-Zn-Al catalysts prepared from hydrotalcite-like LHD precursors for ethanol steam reforming. At 823 K the most active Co/Ni catalyst containains a predominant spinel phase with composition near Zn0.58Ni0.42[Al0.44Co0.56]2O4 and small amounts of NiO and ZnO. On the other side, at 873 K the selectivity to hydrogen increases with cobalt content. In particular, the presence of cobalt increases selectivity to H2 and CO2 and decreases selectivity to methane in the low temperature range 720–870 K. The most selective catalyst is the Ni-free Co-Zn-Al mixed oxide essentially constituted by a single spinel type phase Zn0.55Co0.45[Al0.45Co0.55]2O4. Cobalt catalysts appear consequently to behave better than nickel based catalysts in this temperature range. The key feature for high selectivity to hydrogen is proposed to be associated to a stability of a relatively high oxidation state at the catalyst surface, the most relevant selectivity determining step being constituted by the evolution of surface acetate species. In fact, over oxidized catalyst surface the acetate species evolve producing carbon dioxide and hydrogen while over a more reduced surface they evolve giving rise to methane and COx. Water is supposed to have the main role of allowing surface sites to stay in an unreduced state at least in the temperature range 720–870 K.

Synthesis gas production by steam reforming of ethanol

2001 ◽  
Vol 220 (1-2) ◽  
pp. 123-127 ◽  
Author(s):  
V.V. Galvita ◽  
G.L. Semin ◽  
V.D. Belyaev ◽  
V.A. Semikolenov ◽  
P. Tsiakaras ◽  
...  
Keyword(s):  
Synthesis Gas ◽  
Steam Reforming ◽  
Gas Production ◽  
Steam Reforming Of Ethanol

A novel BEA-type zeolite core–shell multiple catalyst for hydrogen-rich gas production from ethanol steam reforming

2016 ◽  
Vol 6 (14) ◽  
pp. 5427-5439 ◽  
Author(s):  
Ziliang Zheng ◽  
Donghua Yang ◽  
Tingting Li ◽  
Xuemei Yin ◽  
Shiyao Wang ◽  
...  
Keyword(s):  
Steam Reforming ◽  
Gas Production ◽  
Ethanol Steam Reforming ◽  
Core Shell ◽  
Type Zeolite ◽  
Ethanol Steam

BEA-type core–shell catalysts consisting of a core supporting Cu and Fe and a Ni-based shell were investigated for their ethanol steam reforming (ESR) activity.

scholarly journals Preparation of 27Ni6Zr4O143M(M=Mg, Ca, Sr, or Ba)O/70 Zeolite Y Catalysts and Hydrogen-rich Gas Production by Ethanol Steam Reforming

2013 ◽  
Vol 34 (7) ◽  
pp. 2073-2080
Author(s):  
Dongjin Kim ◽  
Jun Su Lee ◽  
Gayoung Lee ◽  
Byung-Hyun Choi ◽  
Mi-Jung Ji ◽  
...  
Keyword(s):  
Steam Reforming ◽  
Zeolite Y ◽  
Gas Production ◽  
Ethanol Steam Reforming ◽  
Ethanol Steam

Hydrogen Production by Ethanol Steam Reforming Over Cu and Ni Catalysts Supported on ZrO2 and Al2O3 Microspheres

2008 ◽  
Vol 591-593 ◽  
pp. 734-739 ◽  
Author(s):  
V.S. Bergamaschi ◽  
F.M.S. Carvalho
Keyword(s):  
Steam Reforming ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Feed Ratio ◽  
Ni Catalyst ◽  
Ethanol Conversion ◽  
Ethanol Steam Reforming ◽  
Hydrolysis Method ◽  
Steam Reforming Of Ethanol ◽  
Ethanol Steam

Ethanol reforming process to produce hydrogen rich-gas stream is performed using Cu/Ni catalyst supported on zirconia and alumina microspheres prepared by hydrolysis method. Theses catalysts were tested in a fixed-bed reactor system employing steam reforming of ethanol. The operating temperature was 550°C and water/ethanol feed ratio 3/1. Although all catalysts were very active for ethanol conversion and very selective towards the desired products, but that one supported on zirconia microspheres was produced slightly better results. The data reveal high activity of the Cu/Ni/ZrO2 catalyst for ethanol steam reforming and presented a good selectivity for H2.

scholarly journals Synthesis Gas Production by Steam Reforming of Ethanol over M-Ni-Al Hydrotalcite-type Catalysts; M=Mg, Zn, Mo, Co

2012 ◽  
Vol 42 ◽  
pp. 1805-1815 ◽  
Author(s):  
G. de Souza ◽  
V.C. Ávila ◽  
N.R. Marcílio ◽  
O.W. Perez-Lopez
Keyword(s):  
Synthesis Gas ◽  
Steam Reforming ◽  
Gas Production ◽  
Steam Reforming Of Ethanol
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