Advancement of an infra-red technique for whole-field concentration measurements in fluidized beds
| Autor: | Fausto Gallucci, Martin van Sint Annaland, Niek de Nooijer, J.A. Medrano |
|---|---|
| Přispěvatelé: | Chemical Process Intensification |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Mass transport
Computer science Nuclear engineering Mechanical engineering ComputingMilieux_LEGALASPECTSOFCOMPUTING 02 engineering and technology lcsh:Chemical technology 7. Clean energy Biochemistry Article Analytical Chemistry chemistry.chemical_compound 020401 chemical engineering Propane TRACER Mass transfer mass transfer Calibration lcsh:TP1-1185 0204 chemical engineering Electrical and Electronic Engineering Instrumentation Quartz Concentration polarization concentration polarization 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics chemistry fluidized bed membrane reactor Fluidized bed Temporal resolution IR Stage (hydrology) 0210 nano-technology |
| Zdroj: | Sensors, 16(3):300. Multidisciplinary Digital Publishing Institute (MDPI) Sensors (Basel, Switzerland) Sensors; Volume 16; Issue 3; Pages: 300 Sensors, Vol 16, Iss 3, p 300 (2016) |
| ISSN: | 1424-8220 |
| Popis: | For a better understanding and description of the mass transport phenomena in dense multiphase gas-solids systems such as fluidized bed reactors, detailed and quantitative experimental data on the concentration profiles is required, which demands advanced non-invasive concentration monitoring techniques with a high spatial and temporal resolution. A novel technique based on the selective detection of a gas component in a gas mixture using infra-red properties has been further developed. The first stage development was carried out using a very small sapphire reactor and CO₂ as tracer gas. Although the measuring principle was demonstrated, the real application was hindered by the small reactor dimensions related to the high costs and difficult handling of large sapphire plates. In this study, a new system has been developed, that allows working at much larger scales and yet with higher resolution. In the new system, propane is used as tracer gas and quartz as reactor material. In this study, a thorough optimization and calibration of the technique is presented which is subsequently applied for whole-field measurements with high temporal resolution. The developed technique allows the use of a relatively inexpensive configuration for the measurement of detailed concentration fields and can be applied to a large variety of important chemical engineering topics. |
| Databáze: | OpenAIRE |
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