Abstract: The present invention relates to a catalytic system for the preparation of light olefins through the dehydration of alcohols, including at least one catalyst and at least one co-catalyst, wherein the catalyst is selected from among catalysts for the catalytic dehydration of ethanol and with the co-catalyst selected from among oxy-ketonization reaction catalysts, wherein the catalyst:co-catalyst mass ratio is within a range of 0.5:0.125 to 2:10, and preferably within a range of 1:0.25 to 1:5.

Abstract: The present invention relates to a catalytic system for the preparation of light olefins through the dehydration of alcohols, including at least one catalyst and at least one co-catalyst, wherein the catalyst is selected from among catalysts for the catalytic dehydration of ethanol and with the co-catalyst selected from among oxy-ketonization reaction catalysts, wherein the catalyst:co-catalyst mass ratio is within a range of 0.5:0.125 to 2:10, and preferably within a range of 1:0.25 to 1:5.

Abstract: The present invention comprises the use of mixed oxide based catalysts containing at least lanthanum, nickel and oxygen in the reactions of steam reforming and oxidative reforming of alcohols at low temperature or a mixture of alcohols, such as bio-ethanol. The catalysts have a perovskite structure represented by Lai1-xMxNIO3, where x from 0.0 to 1.0 and M=elements of the group of alkaline earth metals or lanthanides. Hydrogen generated in the method of the invention can be used, among other applications, in a low temperature fuel cell as the PEM type.

Abstract: The present invention involves the use of the cerium oxide based catalysts with or without 0.5-10 wt % of alkaline and alkaline earth promoters (Li, Na, K, Rb, Cs, Fr, Be, Mg, Ca, Sr, Ba, Ra) and mixed oxides containing ceria and zirconia and/or yttria an/or lanthanide elements (CexM1-xO2; M=Zr, Y, La, Pr, Nd, Pm, Sm, Eu and 0.1<x<0.9) on the steam reforming and autothermal reforming at low temperatures of alcohols, in particular ethanol, or a mixture of these alcohols, like, for example, bio-ethanol. Low temperature was defined as 723-823 K. The catalysts of this invention exhibit good activity and stability, high selectivity to hydrogen, low formation of carbon monoxide (<150 ppm), small amounts of acetaldehyde and ethene and no production of ketone.