Eleven heatless adsorption runs were made to examine the effect of the purge to feed ratio and cycle time.
Pressure of adsorption stage, purge to feed ratio at regeneration step and temperature of the 1st and 2nd heating steps were found to be the most influential parameters affecting the natural gas purification efficiency.
PSA process performance was strongly influenced by design parameters (such as: bed size, adsorbent physical properties, configuration and number of beds) and operating variables (such as: pressurization time, production time, purge time, feed flow rate, purge flow rate, production flow rate, temperature and/or pressure variations).
We assess sensitivity of receiver performance to surface optical properties, heat-transfer coefficients, solids outlet temperature, and purge-gas feed rates, and discuss the significance of model assumptions and results for future receiver development.
The purge also feeds into the view that the centre of power in the regime has shifted from the army to the party since Mr Kim took charge; purges in the military have been "remarkably more severe" recently, says Andrei Lankov of Kookmin University in Seoul.
The analysis also reveals some remarkable insight into the subtleties associated with nominal purge-to-feed ratios of less than unity.
Effects of operating conditions such as the Purge-to-Feed ratio (P/F) and desorption pressure on the specific power consumption were investigated in detail.
The analytic structure of this model shows the infeasibility of a periodic state with complete containment of solvent vapor, when the purge-to-feed ratio is less than unity.
Specifically, for constant pressure ratios the recovery decreases as either the purge pressure or feed pressure increases.
In the present catalytic system operating at 750 °C and under purge stream of feed, nickel borate undergoes partial degradation whose degree depends on the type of support used to release catalytically reactive tiny Ni0 metal crystallite and B2O3.
Larvae fed a rapamycin-treated diet took significantly longer to gut purge than animals fed DMSO (Fig. 5).
