تاثیر فشار جزئی گاز کاربن دای اکساید بالای ریفورمینگ ایتانول بطریقه خشک برای تولید هایدروجن (Effect of CO 2 Partial Pressure on Dry Reforming of Ethanol for Hydrogen Production)

2018 ◽  
Author(s):  
Fahim Fayaz ◽  
Ahmad Ziad Sulaiman ◽  
Sharanjit Singh ◽  
Sweeta Akbari
Keyword(s):  
Hydrogen Production ◽  
Partial Pressure ◽  
Dry Reforming

scholarly journals Effect of CO2 partial pressure on dry reforming of ethanol for hydrogen production

2018 ◽  
Vol 1 (1) ◽  
pp. 6-10
Author(s):  
Fahim Fayaz ◽  
Ahmad Ziad Sulaiman ◽  
Sharanjit Singh ◽  
Sweeta Akbari
Keyword(s):  
Partial Pressure ◽  
Fixed Bed ◽  
Dry Reforming ◽  
Fixed Bed Reactor ◽  
Bet Surface Area ◽  
Impregnation Method ◽  
X Ray Diffraction ◽  
Co2 Partial Pressure ◽  
Temperature Programmed ◽  
Al2o3 Catalyst

The effect of CO2 partial pressure on ethanol dry reforming was evaluated over 5%Ce-10%Co/Al2O3 catalyst at = PCO2 = 20-50 kPa, PC2H5OH = 20 kPa, reaction temperature of 973 K under atmospheric pressure. The catalyst was prepared by using impregnation method and tested in a fixed-bed reactor. X-ray diffraction measurements studied the formation of Co3O4, spinel CoAl2O4 and CeO2, phases on surface of 5%Ce-10%Co/Al2O3 catalyst. CeO2, CoO and Co3O4 oxides were obtained during temperature–programmed calcination. Ce-promoted 10%Co/Al2O3 catalyst possessed high BET surface area of 137.35 m2 g-1. C2H5OH and CO2 conversions was improved with increasing CO2 partial pressure from 20-50 kPa whilst the optimal selectivity of H2 and CO was achieved at 50 kPa.

Effect of Ni loading on SBA-15 synthesized from palm oil fuel ash waste for hydrogen production via CH4 dry reforming

2020 ◽  
Vol 45 (36) ◽  
pp. 18411-18425 ◽  
Author(s):  
N. Abdullah ◽  
N. Ainirazali ◽  
C.C. Chong ◽  
H.A. Razak ◽  
H.D. Setiabudi ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Palm Oil ◽  
Dry Reforming ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Oil Fuel

Process Modelling, Thermodynamic Analysis and Optimization of Dry Reforming, Partial Oxidation and Auto-Thermal Methane Reforming for Hydrogen and Syngas production

2015 ◽  
Vol 10 (4) ◽  
pp. 211-220 ◽  
Author(s):  
Bamidele V. Ayodele ◽  
Chin Kui Cheng
Keyword(s):  
Hydrogen Production ◽  
Thermodynamic Analysis ◽  
Partial Oxidation ◽  
Desirability Function ◽  
Experimental Studies ◽  
Dry Reforming ◽  
Process Modelling ◽  
Syngas Production ◽  
Aspen Hysys ◽  
Partial Oxidation Reforming

Abstract In this work, process modelling, thermodynamic analysis and optimization of stand-alone dry and partial oxidation reforming of methane as well as, the auto-thermal reforming processes were investigated. Firstly, flowsheet models were developed for both the stand-alone systems and auto-thermal reforming process using ASPEN HYSYS®. Furthermore, thermodynamic studies were conducted for the stand-alone and auto-thermal reforming processes for temperatures range of 200–1000°C and pressure range of 1–3 bar using Gibbs free energy minimization methods which was also performed using ASPEN HYSYS®. The simulation of the auto-thermal reforming process was also performed at 20 bar to mimic industrial process. Process parameters were optimized in the combined reforming process for hydrogen production using desirability function. The simulation results show that 84.60 kg/h, 62.08 kg/h and 154.7 kg/h of syngas were produced from 144 kg/h, 113 kg/h and 211 kg/h of the gas fed into the Gibbs reactor at CH4/CO2/O2 ratio 1:1:1 for the stand-alone dry reforming, partial oxidation reforming and auto-thermal processes respectively. Equilibrium conversion of CH4, CO2, O2 were thermodynamically favoured between 400 and 800°C with highest conversions of 100%, 95.9% and 86.7% for O2, CO2 and CH4 respectively. Highest yield of 99% for H2 and 40% for CO at 800°C was obtained. The optimum conditions for hydrogen production were obtained at CH4/CO2, CH4/O2 ratios of 0.634, 0.454 and temperature of 800°C respectively. The results obtained in this study corroborate experimental studies conducted on auto-thermal reforming of methane for hydrogen and syngas production.

Hydrogen production from CH4 dry reforming over Sc promoted Ni / MCM-41

2019 ◽  
Vol 44 (37) ◽  
pp. 20770-20781 ◽  
Author(s):  
Ahmed S. Al-Fatesh ◽  
Hanan Atia ◽  
Jehad K. Abu-Dahrieh ◽  
Ahmed A. Ibrahim ◽  
Reinhard Eckelt ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Dry Reforming ◽  
Mcm 41
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