TY - JOUR
T1 - Effect of syngas conversion and catalyst reduction temperature in the synthesis of ethanol
T2 - concentration of water vapor in mesoporous Rh/MCM-41 catalyst
AU - Lopez, Luis
AU - Velasco, Jorge
AU - Cabrera, Saul
AU - Boutonnet, Magali
AU - Järås, Sven
N1 - Publisher Copyright:
© 2015 Elsevier B.V.
PY - 2015/7/3
Y1 - 2015/7/3
N2 - Abstract Rh-based catalysts typically show low selectivity to CO2 in the synthesis of ethanol from syngas. However, a novel mesoporous Rh/MCM-41 catalyst shows high selectivity to CO2 in a large range of syngas conversions; 1% to 68%, regulated by adjusting the operation conditions (270-430 °C, 30-90 bar and 6000-40,000 ml(syngas)/gcat h). The same effect is obtained at different catalyst reduction temperatures (200 °C and 500 °C) as well as on the non-reduced catalyst. A high concentration of water vapor seems to occur in the pores of Rh/MCM-41 which may promote the water-gas-shift-reaction, producing extra CO2 and H2.
AB - Abstract Rh-based catalysts typically show low selectivity to CO2 in the synthesis of ethanol from syngas. However, a novel mesoporous Rh/MCM-41 catalyst shows high selectivity to CO2 in a large range of syngas conversions; 1% to 68%, regulated by adjusting the operation conditions (270-430 °C, 30-90 bar and 6000-40,000 ml(syngas)/gcat h). The same effect is obtained at different catalyst reduction temperatures (200 °C and 500 °C) as well as on the non-reduced catalyst. A high concentration of water vapor seems to occur in the pores of Rh/MCM-41 which may promote the water-gas-shift-reaction, producing extra CO2 and H2.
KW - Ethanol
KW - Reduction temperature
KW - Rh/MCM-41
KW - Syngas conversion
UR - http://www.scopus.com/inward/record.url?scp=84934278111&partnerID=8YFLogxK
U2 - 10.1016/j.catcom.2015.06.015
DO - 10.1016/j.catcom.2015.06.015
M3 - Artículo
AN - SCOPUS:84934278111
SN - 1566-7367
VL - 69
SP - 183
EP - 187
JO - Catalysis Communications
JF - Catalysis Communications
M1 - 4365
ER -