PDF Publication Title:
Text from PDF Page: 077
isotherms for zeolite 5A, along with its auxiliary parameters, is explained in Pahinkar et al. (2015), and is adapted from Gholami et al. (2010). More favorable isotherms for zeolite 5A at 25°C result in greater adsorption capacity at low CO2 partial pressures and faster adsorption. This advantage of using zeolite 5A as an adsorbent can only materialize if the HTF does not interfere with CO2 adsorption. As zeolite 5A has a high affinity for water (Gholami and Talaie, 2009), its use as the HTF adversely affects the adsorption and desorption of CO2. Therefore, PAO, which has a large molecule size compared to water and CO2 and does not interfere with CO2 adsorption, is chosen as the HTF for the zeolite 5A case. Although zeolite 5A has a high capacity for CO2 that remains constant for a large range of partial pressures, it cannot rely on merely temperature swing for a reasonable adsorbent swing capacity, as seen in Figure 2.9. Silicalite, on the other hand shows reduced selectivity, as seen in the slope of the capacity curve at zero partial pressure; however, it has a comparable adsorption capacity to that of zeolite 5A. Silicalite is also found to show better response to temperature swing in terms of increased adsorbent swing capacity. Due to negligible water adsorption capacity of silicalite, water can be used as the HTF to heat and cool the adsorbent layer. The full process simulation using this pair is demonstrated in the previous section, where the use of the silicalite–water pair was shown to drive the selection of the appropriate geometry for adsorbent-coated microchannels. 50PDF Image | TEMPERATURE SWING ADSORPTION PROCESSES FOR GAS SEPARATION
PDF Search Title:
TEMPERATURE SWING ADSORPTION PROCESSES FOR GAS SEPARATIONOriginal File Name Searched:
PAHINKAR-DISSERTATION-2016.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 | RSS | AMP |