Analysis of Two‐Step Solar Thermochemical Looping Reforming of Fe 3 O 4 Redox Cycles for Synthesis Gas Production

2019 ◽  
Vol 7 (3) ◽  
pp. 1800588 ◽  
Author(s):  
Bachirou Guene Lougou ◽  
Yong Shuai ◽  
Gédéon Chaffa ◽  
Clément Ahouannou ◽  
Ruming Pan ◽  
...  
Keyword(s):  
Synthesis Gas ◽  
Gas Production ◽  
Redox Cycles ◽  
Solar Thermochemical

Heat Transfer Modeling of a High-Temperature Porous-Medium Filled Solar Thermochemical Reactor for Hydrogen and Synthesis Gas Production

2018 ◽  
Vol 141 (2) ◽  
Author(s):  
Ruming Pan ◽  
Bachirou Guene Lougou ◽  
Yong Shuai ◽  
Guohua Zhang ◽  
Hao Zhang
Keyword(s):  
Heat Transfer ◽  
Porous Medium ◽  
Porous Media ◽  
High Temperature ◽  
Temperature Distribution ◽  
Synthesis Gas ◽  
Gas Production ◽  
Operating Conditions ◽  
Heat Transfer Modeling ◽  
Solar Thermochemical

In this paper, heat transfer modeling of a high-temperature porous-medium filled solar thermochemical reactor for hydrogen and synthesis gas production is investigated. The numerical simulation is performed using a three-dimensional (3D) numerical model and surface-to-surface radiation model coupled to Rosseland approximation for radiation heat transfer. The effects of operating conditions and the porous structural parameters on the reactor thermal performance were investigated significantly. It was found that large axial temperature gradient and high-temperature distribution throughout the reactor were strongly dependent on the operating conditions. The inlet gas temperature has remarkable effects on the temperature distribution. The thermal performance of porous-medium filled solar thermochemical reactor could be improved by preheating the inlet gas up to 393.15 K. Moreover, a correlation was established between the protective gas inlet velocity and the porosity of porous media. The temperature difference decreased with the increase in the porosity of the inner cavity of the reactor. In contrast to the front and back parts of the inner cavity of the reactor, higher temperature distribution could be obtained in the porous region by increasing the average cell diameters of porous media.

Humin based by-products from biomass processing as a potential carbonaceous source for synthesis gas production

2015 ◽  
Vol 17 (2) ◽  
pp. 959-972 ◽  
Author(s):  
T. M. C. Hoang ◽  
E. R. H. van Eck ◽  
W. P. Bula ◽  
J. G. E. Gardeniers ◽  
L. Lefferts ◽  
...  
Keyword(s):  
Synthesis Gas ◽  
Chemical Structure ◽  
Gas Production ◽  
Dry Reforming ◽  
Biomass Processing ◽  
By Products

Valorisation of humin by-products: the chemical structure of humin and the evolution as well as reactivity of humin in dry reforming.

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