Thermal stability study of NiAl2O4 binders for Chemical Looping Combustion application
نویسندگان
چکیده
The influence of the preparation method of NiAl2O4 binders on their thermal stability was studied. For this purpose, the reactivity of two different NiAl2O4 binders with CO as fuel was studied in a fixed bed reactor device. Successive oxidation-reduction cycles were performed 25
منابع مشابه
Optimization of fuel ratio in solution combustion method for fabrication of nickel aluminate spinel used in the esterification reaction
In this study, the solution combustion method as a simple, fast, and cost-effective method was utilizedfor the fabrication of spinel nickel aluminate as a stable material to use in the esterification reaction.The effect of fuel amount (urea) as an important parameter of the solution combustion method on thestructure, properties, and performance of the sample was evaluated. The...
متن کاملOptimization of Hydrogen Production by Chemical-Looping Auto- Thermal Reforming Working with Ni-based Oxygen-Carriers
Chemical-Looping auto-thermal Reforming (CLRa) is a new process for hydrogen production from natural gas that uses the same principles as Chemical-Looping Combustion (CLC). The main difference with CLC is that the desired product is syngas (H2 + CO) instead of CO2 + H2O. For that, in the CLRa process the air to fuel ratio is kept low to prevent the complete oxidation of the fuel. The major adva...
متن کاملInvestigation of composite powder synthesis (Al2O3-WXSiY-WXBY) in aluminothermic combustion system (Al+B2O3+Si+WO3) using thermal analysis
Composites that are including silicide of tungsten and boride of tungsten intermetallic compound have properties such as high hardness, relatively good thermal shock, chemical stability and high strength at high temperature. The purpose of this investigation is evaluation of phase and microstructure of alumina base composite reinforced by boride and silicide of tungsten in three systems 1-Al+...
متن کاملChemical-Looping Combustion and Gasification of Coals and Oxygen Carrier Development: A Brief Review
Chemical-looping technology is one of the promising CO2 capture technologies. It generates a CO2 enriched flue gas, which will greatly benefit CO2 capture, utilization or sequestration. Both chemical-looping combustion (CLC) and chemical-looping gasification (CLG) have the potential to be used to generate power, chemicals, and liquid fuels. Chemical-looping is an oxygen transporting process usi...
متن کاملStructured Ni catalysts on porous anodic alumina membranes for methane dry reforming: NiAl2O4 formation and characterization.
This communication presents the successful design of a structured catalyst based on porous anodic alumina membranes for methane dry reforming. The catalyst with a strong Ni-NiAl2O4 interaction shows both excellent activity and stability.
متن کامل