Thermodynamic analysis of steam reforming of ethanol and glycerine for hydrogen production

Microkinetic modeling and analysis of ethanol partial oxidation and reforming reaction pathways on platinum at short contact times

“…Thermodynamic analysis for ethanol reforming has been carried out to understand the effect of operating conditions on product selectivities and yields [41][42][43]. A number of studies have focused on developing Langmuir-Hinshelwood-Hougen-Watson (LHHW) or Eley-Rideal rate expressions followed by data fitting of the kinetic parameters [44][45][46][47].…”

Glycerol, the Co-Product of Biodiesel: One Key for the Future Bio-Refinery

“…By thermodynamic studies in the 550-1200 K, 1-50 atm, and 1:1-12:1 water:glycerol molar ratio ranges, Wang et al [2008] reported temperatures between 925 and 975 K and 9-12 water:glycerol ratios at atmospheric pressure as optimal conditions for hydrogen production, whereas higher temperatures and lower reactant ratios at 20-50 atm were suitable for the production of synthesis gas. Rossi et al [2009] reported the increase of hydrogen production by increasing water:glycerol feed ratio or temperature. Chen et al [2009] analyzed the adsorption-enhanced steam reforming of glycerol, stating that the use of a CO 2 adsorbent enhanced from 6 to 7 moles of hydrogen produced per mole of glycerol, while the most favorable temperature for steam reforming in the presence of a CO 2 adsorbent was 800-850 K, being about 100 K lower than that for reforming without CO 2 adsorption.…”

Production of Hydrogen From the Steam and Oxidative Reforming of Lpg: Thermodynamic and Experimental Study

“…The great interest in the use of fuel cells in homes, transportation, and chemical industries has stimulated the demand for large-scale production of hydrogen (Ahmed and Krumpelt, 2001;Cheekatamarla and Finnertya, 2006;Rossi et al, 2009;Montané et al, 2011;Dantas et al, 2012). In addition, the application of more stringent environmental laws in relation to gaseous pollutants such as ash, hydrocarbons (HCs), nitrogen oxides (NOx) and carbon monoxide (CO) in industrial processes has required the development of cleaner technologies (Barreto et al, 2003).…”

“…Therefore, obtaining hydrogen from compounds that already have a distribution network, such as natural gas, oil, ethanol (in the case of Brazil) and liquefied petroleum gas (LPG), is a requirement to fully implement a hydrogen-based economy (Ayabe et al, Brazilian Journal of Chemical Engineering 2003; Gokaliler et al, 2008;Jeong and Kang, 2010;Li et al, 2010). Industrially, the most common route for hydrogen production has been steam reforming of methane (Rossi et al, 2009), although there are several studies in the literature reporting the use of other compounds such as ethanol, propane and butane to obtain hydrogen (Montané et al, 2011;Gokaliler et al, 2008;Jeong and Kang, 2010;Li et al, 2010).…”