PDF Publication Title:
Text from PDF Page: 006
2186 Rafael M. Siqueira et al. / Energy Procedia 114 (2017) 2182 – 2192 Fig. 1 - Schematic illustration of the two-bed PSA unit and the steps for each bed Based on the pore structure of the activated carbon sample used in this work, it was assumed that the external mass transfer and macropores diffusion resistances are insignificant when compared to the micropore diffusion resistance. Hence, the mass transfer coefficient ( ) was based only on micropore diffusivity and determined by fitting the model to experimental breakthrough curves. The average rate of concentration change in the adsorbed phase is expressed by Eq. 4. qi k q* q t where is the average adsorbed amount of component i and is the actual adsorbed amount in equilibrium. LDF ii (4) The axial dispersion coefficient was calculated according to the correlation of Wakao and Funazkri [29]. Dax 0.5ReSc bD0 m (5) where the parameter corresponding to the stagnant contribution to axial dispersion, which, in the present case, given the low Reynolds number, was set to 0.23. For higher Reynolds regimes, the value of that parameter is commonly set to 20 [24, 25, 29, 30]. The molecular diffusivity ( ) was calculated using the Chapman-Enskog equation [23]. Other parameters are calculated according to correlations presented in Table 2. In Table 2, and represent the axial heat dispersion coefficient and the thermal conductivity in the gas phase, respectively, in J s-1 m-1 K-1; is the wall heat transfer coefficient; and are the internal and external column diameter, respectively; is the particle diameter; is the wall thermal conductivity; is the viscosity of the gas mixture and is the superficial velocity of the gas.PDF Image | Carbon Dioxide Capture by Pressure Swing Adsorption
PDF Search Title:
Carbon Dioxide Capture by Pressure Swing AdsorptionOriginal File Name Searched:
Carbondioxidecapturebypressureswingadsorption.pdfDIY PDF Search: Google It | Yahoo | Bing
CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
Heat Pumps CO2 ORC Heat Pump System Platform More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)