scholarly journals Thermodynamic Analysis of Autothermal Reforming of Synthetic Crude Glycerol (SCG) for Hydrogen Production

2017 ◽  
Vol 1 (1) ◽  
pp. 4 ◽  
Author(s):  
◽  
◽  
Keyword(s):  
Hydrogen Production ◽  
Thermodynamic Analysis ◽  
Crude Glycerol ◽  
Autothermal Reforming

scholarly journals Hydrogen Production From Palmitic Acid Through Autothermal Reforming: Thermodynamic Analysis

2015 ◽  
Vol 19 (4) ◽  
pp. 153-165 ◽  
Author(s):  
Tawiwan Kangsadan ◽  
Thanarak Srisurat ◽  
Pattaraporn Kim ◽  
Navadol Laosiripojana ◽  
Sunisa Jindasuwan ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Palmitic Acid ◽  
Thermodynamic Analysis ◽  
Autothermal Reforming

Thermodynamic study of hydrogen production from crude glycerol autothermal reforming for fuel cell applications

2010 ◽  
Vol 35 (13) ◽  
pp. 6617-6623 ◽  
Author(s):  
Suthida Authayanun ◽  
Amornchai Arpornwichanop ◽  
Woranee Paengjuntuek ◽  
Suttichai Assabumrungrat
Keyword(s):  
Fuel Cell ◽  
Hydrogen Production ◽  
Crude Glycerol ◽  
Autothermal Reforming ◽  
Thermodynamic Study

Thermodynamic Analysis of the Absorption Enhanced Autothermal Reforming of Ethanol

2013 ◽  
Vol 16 (3) ◽  
pp. 229-237 ◽  
Author(s):  
Virginia Collins-Martínez ◽  
Miguel A. Escobedo Bretado ◽  
Jesús Salinas Gutiérrez ◽  
Miguel Meléndez Zaragoza ◽  
Vanessa. G. Guzmán ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Thermodynamic Analysis ◽  
Hydrogen Concentration ◽  
Autothermal Reforming ◽  
Operating Conditions ◽  
Co2 Absorption ◽  
Carbon Formation ◽  
High Hydrogen ◽  
Molar Ratios ◽  
Co2 Absorbent

Thermodynamic analysis of the absorption enhanced autothermal reforming of ethanol using CaO as CO2 absorbent and O2 in the feed was performed to determine favorable operating conditions to produce a high hydrogen ratio (HR, mols H2-produced/EtOH-feed) and hydrogen concentration in gas product. Steam/Ethanol (S/EtOH) and oxygen/ethanol (O2/EtOH) feed molar ratios were varied in order to find autothermal (?H ? 0) and carbon free operating conditions at 300-900°C and CaO as CO2 absorbent at 1 atm. Carbon formation analysis used S/EtOH = 1.75-2.8, while for hydrogen production varied from stoichiometric; 3:1 to 6.5:1, and O2/ETOH from 0 to 1.0. Results indicate no carbon formation at S/EtOH ? stoichiometric. The absorption enhanced autothermal reforming of ethanol using CaO, O2/EtOH = 0.33, S/EtOH = 6.5 and 600°C, produced an autothermal system with 98% H2 and only a reduction of 9.8% in HR and with respect to the CO2 absorption reforming without O2 feed.

scholarly journals THERMODYNAMIC ANALYSIS OF AUTOTHERMAL REFORMING OF METHANE VIA ENTROPY MAXIMIZATION: HYDROGEN PRODUCTION

2015 ◽  
Author(s):  
T. L. de SOUZA ◽  
C. C. R. S. ROSSI ◽  
C. G. ALONSO ◽  
R. GUIRARDELLO ◽  
V. F. CABRAL ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Thermodynamic Analysis ◽  
Autothermal Reforming ◽  
Entropy Maximization

Autothermal Reforming of Ethanol for Hydrogen Production: Thermodynamic Analysis

2013 ◽  
Vol 415 ◽  
pp. 658-665 ◽  
Author(s):  
Nawadee Srisiriwat ◽  
Chananchai Wutthithanyawat
Keyword(s):  
Carbon Monoxide ◽  
Hydrogen Production ◽  
Thermodynamic Analysis ◽  
Equilibrium Composition ◽  
Product Distribution ◽  
Autothermal Reforming ◽  
Hydrogen Yield ◽  
Molar Ratios ◽  
Carbon Monoxide Formation ◽  
Gibbs Free Energy Minimization

This work presents the autothermal reforming (ATR), or called oxidative steam reforming (OSR), of ethanol for hydrogen production. A thermodynamic analysis of product distribution for ATR from ethanol has been performed by using the method of Gibbs free energy minimization. The effect of steam-to-carbon (S:C) and air-to-carbon (A:C) molar ratios under adiabatic temperature of ATR reactor on chemical equilibrium composition of hydrogen rich stream is investigated. An increase of S:C ratio increases an efficiency of hydrogen production while carbon monoxide formation decreases but, however, more energy consumption for preheating reactants is also needed. An increase of A:C ratio in the range between 0 and 1.75 causes an increase of hydrogen yield but at greater A:C ratio, a decrease of hydrogen production and more water formation can be found. The results of the thermodynamic equilibrium show that the predicted hydrogen composition in the reaction of fuel-water-air system at constant temperature is higher than that obtained from experiment in both the absence and presence of catalysts in the OSR reaction when the temperature is fixed at 700 °C. The predicted carbon monoxide is lower than that obtained from the results of non-catalytic reaction but higher than that attained from the presence of catalyst in process.

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