Effects of Operating Variables

Granulation Rate Processes and Effect of Operating Variables. 20-75... 

Effects of (Operating Variables Figure 22-63 shows trends in effects as various operating variables change in RO. Similar effects apply to NF. 

The only proper method to evaluate the performance of a cat cracker is by conducting a material and heat balance. One balance will tell where the unit is a series of daily or weekly balances will tell where the unit is going. The heat and weight balance can be used to evaluate previous changes or predict the result of future changes. As discussed in the next chapter, material and heat balances are the foundation for determining the effects of operating variables. 

The bioreactor will be scaled up by a factor of 125. It is necessary to discuss the effect of operating variables resulting from constant power per unit volume, agitation rate, and speed tip velocity, NRe. The data for a small-scale bioreactor are a 100 litres fermenter with 187.5 rpm and... 

To evaluate the effects of operating variables on the capacity of the gas-liquid disperser one can make the following substitutions ... 

Performance of a simulated countercurrent moving bed reactor, SCMCR is experimentally investigated for oxidation of CO at low concentration in the absence of hydrogen over Pt/AljOs catelyst/adsorhent. The time-average conversion of CO obtained in the SCMBR was higher than the conversion of CO obtained from a conventional PBR for all over the tested range (period = 2-15 min). For the next step, the effects of operating variables on its performance are planed for both CO oxidation in the absence of H2 and Hz-rich gas system. 

Guttman, A., Cooke, N., and Star, C. M., Capillary electrophoresis separation of oligosaccharides. I. Effect of operational variables, Electrophoresis, 15,1518, 1994. 

Table 1. Effect of Operating Variables on Incorporation of Methanol and on Corrected H/C Ratios C273 g ZnCl, 50 g Wyodak coal)...

Table 6. The Effect of Operating Variables on Attrition in Granulation Processes...

Sreekrishnan, T. R., Ramachandran, K. B., and Ghosh, P., Effect of Operating Variables on Biofilm Formation and Performance of an Anaerobic Fluidized-Bed Bioreactor, Biotechnol. Bioeng., 37 557 (1991)... 

Altria, K. D., Clark, B. J., and Mahuzier, P. (2000). The effect of operating variables in microemulsion electrokinetic capillary electrochromatography. Chromatographia 52, 758-768. 

In the second section, improved column technology is emphasized. The effects of operational variables on the performance of the chromatographic system are considered. Some of the operational variable concerns are shear degradation of high molecular weight polymers, the use of mixed solvent systems, and the optimization of resolution for analysis of oligomers and small molecules. 

In a previous paper (16) the hardware design of the SEC/Viscometer system used in this work has been described. The effects of operational variables, e.g. pump pulsations, flow rate and flow irregularities on the performance of the viscometer and the enhancement of the signal-to-noise ratio by using mechanical dampers also has been described. Our current work has focused on the development, implementation and application of automated data... 

The effects of operating variables on the Duosol extraction system are complex and are best determined empirically. As would be expected, an increase in Selecto results in increased refinement and reduced yield. An increase in propane results in improved raffinate color and decreased viscosity index, but its effect on carbon residue is unpredictable. 

The recoveries of several rare earth elements in leachates obtained from apatite concentrates were determined by Jorjani et al. [68] for ICP-AES and ICP-MS. A neural network model was used to predict the effects of operational variables on the La, Ce, Y and Nd recoveries in the leaching process. The neural network employed was a feed-forward one. 

The effect of operating variables on the electrochemical reduction of tetralin used as a model compound for the hydrogenation of coal is described. The effect of adding a proton donor (fort-butyl alcohol) on the reduction of an olefin was also investigated. 

Engine. IV—Effect of Operational Variables on Temperature Distribution at Combustion-Chamber Outlets, Natl. Advisory Comm. Aeronaut. RM E50B10 (1950). 

Hubert et al. [101] state that accelerated solvent extraction compared to alternatives such as Soxhlet extraction, steam distillation, microwave extraction, ultrasonic extraction and, in some cases, supercritical fluid extraction is an exceptionally effective extraction technique. Hubert et al. [ 101 ] studied the effect of operating variables such as choice of solvent and temperature on the solvent extraction of a range of accelerated persistent organic pollutants in soil, including chlorobenzenes, HCH isomers, DDX, polychlorobiphenyl cogeners and polycyclic aromatic hydrocarbons. Temperatures ofbetween 20 and 180 °C were studied. The optimum extraction conditions use two extraction steps at 80 and 140 °C with static cycles (extraction time 35 minutes) using toluene as a solvent and at a pressure of 15 MPa. 

Crude oil is heated to temperatures at which it thermally cracks into gasoline and distillate products and lower-molecular-weight gases. This liquid cracking process is referred to as visbreaking. A schematic of the process and the effect of operating variables on performance is shown in Fig. 19-12. 

If the effects of operating variables on selectivity are to be expressed, instead of reaction rates r, in the expression for differential selectivity the corresponding rate equations are introduced. 

Albright, L. and Wisniak, J., J. Amer. Oil Chem. Soc. 39, 14, 1962. Selectivity and Isomerization during Partial hydrogenation of cottonsead oil and methyl oleate Effect of operating variables. ... 

Effect of Operational Variables. There are three important operational variables which can affect the operation of a deactivating nonadiabatic reactor (1) inlet temperature (2) inlet poison concentration and (3) tube diameter. 

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