Influence of Nozzle Shape on Partial Oxidation Reforming of Biogas Using Microwave Plasma

2021 ◽  
Author(s):  
Tsuyoshi Yamamoto ◽  
Shinya Uchiyama ◽  
Masahiro Kishida ◽  
Ryo Tanaka
Keyword(s):  
Partial Oxidation ◽  
Microwave Plasma ◽  
Nozzle Shape ◽  
Partial Oxidation Reforming

scholarly journals Solid oxide fuel cells power unit reformer/burner/heat-exchanger module experimental study

2018 ◽  
Vol 22 (1 Part B) ◽  
pp. 631-640
Author(s):  
Vladimir Munts ◽  
Yulia Volkova ◽  
Mikhail Ershov ◽  
Vladimir Tuponogov ◽  
Nikita Plotnikov
Keyword(s):  
Fuel Cells ◽  
Heat Exchanger ◽  
Solid Oxide Fuel Cells ◽  
Power Unit ◽  
Partial Oxidation ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Experimental Procedure ◽  
Air Supply ◽  
Partial Oxidation Reforming

The article contains the installation description, experimental procedure, and results for the catalytic partial oxidation reformer/catalyst burner/heat-exchanger module. Mathematical modeling for all major blocks temperatures dependence on the reformer air supply ratio was carried out. In the air supply ratio range under study the model was verified using experimental data. The model was further practically used for the solid oxide fuel cells power unit automatic control modes development. The partial oxidation reforming solid oxide fuel cells power unit characteristics were evaluated.

Improving Performance of BaCo0.7Fe0.2Nb0.1O3-δ Ceramic Membrane by a Surface-Coating Layer for Partial Oxidation of Coke Oven Gas

2010 ◽  
Vol 154-155 ◽  
pp. 877-881 ◽  
Author(s):  
Hong Wei Cheng ◽  
Xiong Gang Lu ◽  
Da Hai Hu ◽  
Yu Wen Zhang ◽  
Wei Zhong Ding ◽  
...  
Keyword(s):  
Partial Oxidation ◽  
Surface Coating ◽  
Ceramic Membrane ◽  
Coating Layer ◽  
Coke Oven ◽  
Oxygen Permeation ◽  
Permeation Flux ◽  
Coke Oven Gas ◽  
Oxygen Permeation Flux ◽  
Partial Oxidation Reforming

The BaCo0.7Fe0.2Nb0.1O3-δ (BCFNO) membranes combined with Ce0.8Re0.2O2-δ (Re=La, Y) layer on the permeation side were used for hydrogen production by partial oxidation reforming of coke oven gas (COG). The Ce0.8Re0.2O2-δ improved the oxygen permeation flux of the membrane by 11–28% at 750 oC. The high oxygen permeation flux achieved using the Ce0.8Re0.2O2-δ surface-coating layer in this work are quite encouraging with a maximum value reaching 19.7 ml/cm2•min at 900 oC, which will be promising surface modification materials in the catalytic partial oxidation reforming of COG.

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.

Partial oxidation of methane to synthesis gas by a microwave plasma torch

AIChE Journal ◽  
2005 ◽  
Vol 51 (10) ◽  
pp. 2853-2858 ◽  
Author(s):  
Cheng-Hsien Tsai ◽  
Tsung-Hua Hsieh ◽  
Minliang Shih ◽  
Yuh-Jeen Huang ◽  
Ta-Chin Wei
Keyword(s):  
Partial Oxidation ◽  
Synthesis Gas ◽  
Plasma Torch ◽  
Microwave Plasma ◽  
Partial Oxidation Of Methane ◽  
Oxidation Of Methane ◽  
Microwave Plasma Torch

Ni-based catalyst for partial oxidation reforming of iso-octane

2004 ◽  
Vol 272 (1-2) ◽  
pp. 53-60 ◽  
Author(s):  
Dong Ju Moon ◽  
Jong Woo Ryu ◽  
Sang Deuk Lee ◽  
Byung Gwon Lee ◽  
Byoung Sung Ahn
Keyword(s):  
Partial Oxidation ◽  
Partial Oxidation Reforming

scholarly journals Hydrogen Production by Partial Oxidation Reforming of Methane over Ni Catalysts Supported on High and Low Surface Area Alumina and Zirconia

Processes ◽  
2020 ◽  
Vol 8 (5) ◽  
pp. 499 ◽  
Author(s):  
Anis Fakeeha ◽  
Ahmed A. Ibrahim ◽  
Hesham Aljuraywi ◽  
Yazeed Alqahtani ◽  
Ahmad Alkhodair ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Production ◽  
Surface Area ◽  
Partial Oxidation ◽  
Reaction Temperature ◽  
Molar Ratio ◽  
Hydrogen Yield ◽  
Impregnation Method ◽  
H2 Yield ◽  
Partial Oxidation Reforming

The catalytic activity of the partial oxidation reforming reaction for hydrogen production over 10% Ni supported on high and low surface area alumina and zirconia was investigated. The reforming reactions, under atmospheric pressure, were performed with a feed molar ratio of CH4/O2 = 2.0. The reaction temperature was set to 450–650 °C. The catalytic activity, stability, and carbon formation were determined via TGA, TPO, Raman, and H2 yield. The catalysts were calcined at 600 and 800 °C. The catalysts were prepared via the wet-impregnation method. Various characterizations were conducted using BET, XRD, TPR, TGA, TPD, TPO, and Raman. The highest methane conversion (90%) and hydrogen yield (72%) were obtained at a 650 °C reaction temperature using Ni-Al-H-600, which also showed the highest stability for the ranges of the reaction temperatures investigated. Indeed, the time-on-stream for 7 h of the Ni-Al-H-600 catalyst displayed high activity and a stable profile when the reaction temperature was set to 650 °C.

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