Comparison of reactors

It may be seen from equations 1.S3, 1.56 and l.S7 that unit output is a function of conversion. Some numerical values of the dimensionless quantity Wlkx C0 representing the unit output are shown in Table 1.3. Shown also in Table 1.3 are values of the following ratios for various values of the conversion  

Unit output batch reactor Volume stirred-tank reactor Unit output stirred-tank reactor Volume batch reactor 

These show that a single continuous stirred-tank reactor must always be larger than a batch or tubular plug-flow reactor for the same duty, and for high conversions the stirred tank must be very much larger indeed. If two tanks are used, however, the total volume is less than that of a single tank. Although the detailed calculations 

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The primary motivation of PSAs is to assess the risk of the plant to the public. The immediate purpose of the RSS was to support the Price-Anderson hearings on liability insurance (i.e., assess the financial exposure of a nuclear power reactor operator) a purpose which, even today, is beyond PSA technology. However, PSA is sufficiently precise to provide relative risk comparisons of reactor designs and sites. These uses of PSA were presented at the Indian Point hearings, and in defense of Shoreham. The PSAs for the high-population-zone plants (Limerick, Zion, and Indian Point) were prepared to show that specific features of these plants compensate for the higher population density relative to plants studied in the RSS. 

FIGURE 1.8 Comparison of reactor volume required for a given conversion for a first-order reaction in a PFR and a CSTR. 

GP18][R6] Experiments atfixedfiiowrate allowed a comparison of reactor performance over a VO /Al203 catalyst of a multi-platelet-stack micro-channel reac-torandaconventionalfixedbedasafunctionoftheinlettemperature[133,134j. 

Figure 5.63 Comparison of reactor dryout experiments and out-of-pile data pressure 900 psia (6.2 MPa), subcooling enthalpy 21 Btu/lb (63 J/g). (From Farmer and Gilby, 1971. Copyright 1971 by United Nations Pub., New York. Reprinted with permission.)... 

Figure 13.19 is a graphical representation of these results in useful form, prepared by combining Eq. 19 and Eq. 5.17, and allows comparison of reactor sizes for plug and dispersed plug flow. 

Goodell, P.D. "Thermal Conductivity of Hydriding Alloy Powders and Comparisons of Reactor Systems", to be published in J. Less Common Metals, I98O,... 

Unfiltered drinking water LP Hg lamps MP Hg lamps 5200 250 1.716 MW 5 MW comparison of reactor systems Giardia lamblia, Cryptosporidium parvum Schneider et al. (2001)... 

Table 3 Comparison of reactor specifications, experimental conditions, and reactor performance efficiency for photocatalytic decomposition of Orange II dye...

Fischer, P, Zolliker, P, Meier, B. H., Ernst, R. R., Hewat, A. W., Jorgensen, J. D. and Rotella, F. J. (1986). Structure and dynamics of terephthalic acid from 2 to 300K. I. High resolution neutron diffraction evidence for a temperature dependent order-disorder transition—a comparison of reactor and pulsed neutron source powder techniques. J. Solid State Chem., 61, 109-25. [115t]... 

Figure 1. Comparison of reactor configurations single CSTR (Base Case) versus same size CSTR with small seeding reactor (New Reactor Configuration).

Table 2 Comparison of reactor systems for product synthesis...

Figure 3.8 Comparison of reactor volumes for one CSTR, two CSTRs, or a PFR. 

A comparison of reactor volumes for all four cases considered shows that a combination of an MFR and a PFR in series gives the minimum reactor volume. However, economic considerations may point to a single recycle reactor as the best alternative. 

COMPARISON OF REACTOR PERFORMANCES FOR THIS REACTION The reaction may be represented by... 

Gallucci F, Van Sint Annaland M, Kuipers JAM (2008) Autothermal reforming of methane with integrated CO2 capture in a novel fluidized bed membrane reactOT. Part 2 comparison of reactor configurations. Top Catal 51 146-157... 

Figure 16.2 Comparison of reactors volume for different parameters.

Gallucci, R, Van Sint Annaland, M. and Kuipers, J.A.M. (2008b) Autothermal reforming of methane in a novel fluidized bed membrane reactor. Part 2 Comparison of reactor configurations. Topics in Catalysis, 51,146-157. 

Such a comparison of reactor types has been performed over a long period, and both types have been really adopted for FRs in various countries. Loop configuration has been well... 

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