PDF Publication Title:
Text from PDF Page: 134
The expectation based on previously cited studies was column pressure drop would negatively affect the recovery and BSF of the longer column cycles more than those of the shorter columns. Figure 6.7 demonstrates this was not the case for oxygen recovery by plotting it as a function of production step superficial velocity. In Figure 6.7, two comparisons are made. One is between cycles of the short and long columns at an equivalent pressure ratio. The other is between cycles with different pressure ratios using the longer set of columns. Despite differences in pressure drop between the long and short columns, the slope of the recovery decline is comparable. If pressure drop was affecting product recovery, the decline of the recovery for the longer columns would be faster. Furthermore, the lower pressure ratio cycles for the longer columns exhibit a similar recovery decline as the higher pressure ratio cycles. Pressure drop effects increase with a higher pressure ratio. The results indicate for a pressure ratio increase from 2.5 to 4.5, the effects are minimal. Figure 6.8 compares the BSF of the long and short columns at the same pressure ratio as a function of production step velocity. The figure illustrates that cycles operating with a similar cycle time have almost the same BSF. If column pressure drop was affecting the recovery and working capacity of the process, then the BSF of cycles operating with a similar cycle time was expected to differ more. Perhaps the most interesting aspect of these results is that they suggest for a given pressure ratio and similar cycle time, operating with a long, thin column design provides the same BSF with a higher oxygen recovery than a short, wide column design. This was not an expected result if pressure drop was playing a large role in process performance since the long, thin column design has a much greater amount of pressure drop. Clearly, 115PDF Image | LIMITS OF SMALL SCALE PRESSURE SWING ADSORPTION
PDF Search Title:
LIMITS OF SMALL SCALE PRESSURE SWING ADSORPTIONOriginal File Name Searched:
Limits of Small Scale PSA_Aaron Moran.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 |