Solid-State Kinetics of Reduction of $$\hbox {NiO/Ce}$$ NiO/Ce – $${\gamma }\hbox {Al}_{2}\hbox {O}_{3}$$ γ Al 2 O 3 Oxygen Carriers for Chemical-Looping Combustion

2017 ◽  
Vol 43 (5) ◽  
pp. 2281-2290 ◽  
Author(s):  
Mohammad M. Hossain
Keyword(s):  
Solid State ◽  
Chemical Looping Combustion ◽  
Chemical Looping ◽  
Oxygen Carriers ◽  
Solid State Kinetics ◽  
Kinetics Of ◽  
Kinetics Of Reduction

scholarly journals Kinetics of CuO/SiO2 and CuO/Al2O3 oxygen carriers for chemical looping combustion

2018 ◽  
Vol 175 ◽  
pp. 56-71 ◽  
Author(s):  
M.A. San Pio ◽  
M. Martini ◽  
F. Gallucci ◽  
I. Roghair ◽  
M. van Sint Annaland
Keyword(s):  
Chemical Looping Combustion ◽  
Chemical Looping ◽  
Oxygen Carriers ◽  
Kinetics Of

Effect of Fuel and Oxygen Carriers on the Hydrodynamics of Fuel Reactor in a Chemical Looping Combustion System

2013 ◽  
Author(s):  
Atal B. Harichandan ◽  
Tariq Shamim
Keyword(s):  
Oxygen Carrier ◽  
Bubble Formation ◽  
Chemical Looping Combustion ◽  
Chemical Looping ◽  
Calcium Sulfide ◽  
Oxygen Carriers ◽  
Fuel Reactor ◽  
Gas Interactions ◽  
Kinetics Of ◽  
Good Agreement

The hydrodynamics of fuel reactor in a chemical looping combustion (CLC) system has been analyzed by using a multiphase CFD-based model with solid-gas interactions and chemical reactions. In this paper, the fuel reactors of two CLC systems are numerically simulated independently by using hydrogen with calcium sulfide as oxygen carrier, and methane with nickel as oxygen carrier in similar conditions. Kinetic theory of granular flow has been adopted. Conservation of mass, momentum and species equations, and reaction kinetics of oxygen carriers are used for the numerical calculation. The present results obtained are in good agreement with the experimental and numerical results available in open literature. The bubble hydrodynamics in both the fuel reactors are analyzed. The salient features of bubble formation, rise and burst are prominent in hydrogen-fueled reactor as compared to methane-fueled reactor. The fuel conversion rate is found to be larger in the case of hydrogen-fueled reactor.

scholarly journals Reduction Kinetics of Cu-, Ni-, and Fe-Based Oxygen Carriers Using Syngas (CO + H2) for Chemical-Looping Combustion

2007 ◽  
Vol 21 (4) ◽  
pp. 1843-1853 ◽  
Author(s):  
Alberto Abad ◽  
Francisco García-Labiano ◽  
Luis F. de Diego ◽  
Pilar Gayán ◽  
Juan Adánez
Keyword(s):  
Chemical Looping Combustion ◽  
Reduction Kinetics ◽  
Chemical Looping ◽  
Oxygen Carriers ◽  
Kinetics Of

Effect of Fuel and Oxygen Carriers on the Hydrodynamics of Fuel Reactor in a Chemical Looping Combustion System

2014 ◽  
Vol 6 (4) ◽  
Author(s):  
Atal Bihari Harichandan ◽  
Tariq Shamim
Keyword(s):  
Oxygen Carrier ◽  
Bubble Formation ◽  
Chemical Looping Combustion ◽  
Chemical Looping ◽  
Oxygen Carriers ◽  
Fuel Reactor ◽  
Computational Fluid Dynamics Cfd ◽  
Gas Interactions ◽  
Kinetics Of ◽  
Good Agreement

The hydrodynamics of a fuel reactor in a chemical looping combustion (CLC) system is analyzed by using a multiphase two-dimensional computational fluid dynamics (CFD) model that involves solid–gas interactions and chemical reactions. The study compares the fuel reactors of two CLC systems numerically by using hydrogen with calcium sulfide as an oxygen carrier, and methane with nickel as an oxygen carrier in similar conditions. Kinetic theory of granular flow has been adopted. The model considers the conservation equations of mass, momentum and species, and reaction kinetics of oxygen carriers. The results obtained are in good agreement with the experimental and numerical results available in open literature. The bubble hydrodynamics in both the fuel reactors are analyzed. The salient features of the bubble formation, rise, and burst are more prominent in the hydrogen-fueled reactor as compared to the methane-fueled reactor. The fuel conversion rate is found to be larger for the hydrogen-fueled reactor.

Reduction and oxidation kinetics of nickel-based oxygen-carriers for chemical-looping combustion and chemical-looping reforming

2012 ◽  
Vol 188 ◽  
pp. 142-154 ◽  
Author(s):  
Cristina Dueso ◽  
María Ortiz ◽  
Alberto Abad ◽  
Francisco García-Labiano ◽  
Luis F. de Diego ◽  
...  
Keyword(s):  
Oxidation Kinetics ◽  
Chemical Looping Combustion ◽  
Chemical Looping ◽  
Oxygen Carriers ◽  
Reduction And Oxidation ◽  
Kinetics Of
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