Hydrogen production glycerol steam reforming

Glycerol steam reforming reaction for hydrogen production... 

Kim, J., Lee, D. (2013). Glycerol steam reforming on supported Ru-based catalysts for hydrogen production for fuel cells. International Journal of Hydrogen Energy, 38, 11853-11862. 

The overall reaction of hydrogen production via steam reforming of glycerol is... 

Steam reforming of glycerol for hydrogen production involves complex reactions. As a result, several intermediate by-products are formed and end up in the product stream, affecting the final purity of the hydrogen produced. Furthermore, the yield of hydrogen depends on several process variables, such as the system pressure, temperature and water-to-glycerol feed ratio. 

Some additional recent reports on hydrogen production from glycerol include a Ni catalyst on doped alumina improving selectivity in hydrogen production (Iriondo et al., 2006) and that the combination of Ru/C with Amberlyst was effective under mild conditions (Miyazawa et al., 2006). Steam reforming with a ruthenium catalyst was also used in hydrogen production from glycerol (Hirai et al., 2005). 

Another interesting field involving membrane reactors is the partial oxidation of methane to methanol, which is a process for the catalytic conversion of methane from natural gas and air oxygen to methanol by the partial oxidation as well as the steam reforming of methane, ethanol or glycerol for hydrogen production (Basile et a/., 2011 lulianelli et al, 2010,2011). 

Buffoni, I. N., Pompeo, F., Santori, G. F., Nichio, N. N. (2009). Nickel catalysts appUed in steam reforming of glycerol for hydrogen production. Catalysis Communications, 10, 1656-1660. 

Chen, H., Ding, Y., Cong, N. T., Don, B., Dupont, V., Ghadiri, M., et al. (2011). A comparative study on hydrogen production from steam-glycerol reforming thermodynamics and experimental. Ren Energy, 36, 779—788. 

Fermoso, J., He, L., Chen, D. (2012). Production of high purity hydrogen by sorption enhanced steam reforming of crude glycerol. International Journal of Hydrogen Energy, 37, 14047-14054. 

Zhang, B., Tang, X., Li, Y., Xu, Y., Shen, W. (2007). Hydrogen production from steam reforming of ethanol and glycerol over ceria-supported metal catalysts. International Journal of Hydrogen Energy, 32, 2367—2373. 

Glycerol as a by-product of biodiesel production represents a renewable energy source. Conversion to hydrogen hy steam reforming is an effective way to utilize the redundant low-value glycerol ... 

Aqueous phase reforming of glycerol in several studies by Dumesic and co-workers has been reported [270, 275, 277, 282, 289, 292, 294, 319]. The first catalysts that they reported were platinum-based materials which operate at relatively moderate temperatures (220-280 °C) and pressures that prevent steam formation. Catalyst performances are stable for a long period. The gas stream contains low levels of CO, while the major reaction intermediates detected in the liquid phase include ethanol, 1,2-pro-panediol, methanol, 1-propanol, propionic acid, acetone, propionaldehyde and lactic acid. Novel tin-promoted Raney nickel catalysts were subsequently developed. The catalytic performance of these non-precious metal catalysts is comparable to that of more costly platinum-based systems for the production of hydrogen from glycerol. 

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