Combustion of coal mine ventilation air methane in a regenerative combustor with integrated adsorption: Reactor design and optimization
| Autor: | Fernando V. Díez, Pablo Marín, Javier Fernández, Salvador Ordóñez |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
Waste management business.industry Continuous reactor technology industry and agriculture Coal mining Energy Engineering and Power Technology Continuous stirred-tank reactor 02 engineering and technology equipment and supplies 010402 general chemistry 021001 nanoscience & nanotechnology Combustion complex mixtures 01 natural sciences Industrial and Manufacturing Engineering Methane 0104 chemical sciences chemistry.chemical_compound chemistry Combustor Hybrid reactor Coal 0210 nano-technology business |
| Zdroj: | Applied Thermal Engineering. 102:167-175 |
| ISSN: | 1359-4311 |
| DOI: | 10.1016/j.applthermaleng.2016.03.171 |
| Popis: | Coal mine ventilation air methane is an important environmental concern due to its contribution to global warming. Catalytic combustion in reverse flow reactors is an efficient treatment technique, but high emission moistures lead to catalyst inhibition. To overcome this issue a novel reverse flow reactor with integrated water adsorption has been proposed. In this work, the design of a reverse flow reactor adequate to treat a typical real coal ventilation stream, 45 m3/s with 0.30% (mol) methane and 5% (mol) water, has been studied. The performance of the reactor design has been simulated using a 1D heterogeneous dynamic model, previously validated with experimental results. Particular attention has been paid to reactor stability when water and methane feed concentration change upon time. Real coal mine ventilation air data have been used to produce realistic simulations. The optimization of the operating conditions (surface velocity and switching time) has been carried out based on the total cost of the reactor (considering fixed capital and 10-year variable cost). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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