System efficiency analysis of dual interconnected bubbling fluidized bed reactors for solar fuel production
| Autor: | Domenico Ferrero, Azharuddin Farooqui, Massimo Santarelli, Jordi Llorca, Wladyslaw Jaroszuk |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Química, Universitat Politècnica de Catalunya. NEMEN - Nanoenginyeria de materials aplicats a l'energia |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Highest temperature
Nuclear engineering Chemical reactors Combustibles Fluidized bed process Fuels Solar fuels Environmental impact Enginyeria química [Àrees temàtiques de la UPC] Solar energy Oxidation Energia solar Fluidization Synthesis gas Reaction kinetics Gas de síntesi Bubbling fluidized bed business.industry Solar fuel Bubble formation Bubbling fluidized bed reactor Dual-fluidized bed reactors Fluidized-bed combustion Cerium oxide Chemical reactor Chemical looping Mixture compositions Solar fuel Fuel Dual (category theory) Combustió en llit fluïditzat Supersaturation Energy efficiency Carbon dioxide Comprehensive model Fluidized bed reactors Reactors químics Mixtures Fluidized beds Environmental science business Chemical looping combustion Fluidized bed furnaces Syngas |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Recercat. Dipósit de la Recerca de Catalunya instname Scopus-Elsevier |
| DOI: | 10.29007/wrnm |
| Popis: | Chemical looping syngas production is a two-step syngas fuel production process that produces CO and H2. The process is composed of two fluidized bed reactors (oxidation reaction and reduction reactor), oxygen carriers (metal oxides) circulating between the two reactors. A comprehensive model is developed to simulate the chemical looping water and carbon dioxide splitting in a dual fluidized bed reactors interconnected with redox cycling between these two reactors through metal oxides (non-stoichiometric ceria). An extensive FORTRAN subroutine is developed and hooked into Aspen plus V8.8 to appropriately model the complexities of the bubbling fluidized bed reactor including the reaction kinetics. The model developed has been validated for its hydrodynamics and kinetics level and individual correlation was quantified for its validity. The reduction reactor is supplied with the solar energy that temperature above 1300oC is varied up to 1550oC. The heat to attain this high temperature is achieved with solar beam down tower. The oxidation reactor is supplied with a mixture of CO2 and H2O with different mixture composition combining 60% and remaining N2. The oxidation reactor temperature is varied between 700-1000oC to identify the maximum efficiency achieved. It is found that the maximum efficiency achieved is 67% corresponds to highest temperature difference between the reactors. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|