Conversion vs. time

Figure 4. Monomer conversion vs. time of polymerization of styrene in a hatch reactor agitation speed as parameter...

Figure 8, Conversion vs, time (predicted) at mold center (y = 1,0) and mold wall...

Figure 8. Overall conversion vs. time, and polymer composition, styrene concentration in the particles, and MMA concentration in the particles vs. overall conversion for the data of Nomura and Fujita (12.). Initial weight ratio (MMA/Total monomer) = 0.5.

Figure 10. Conversion vs. time, styrene n-butyl methacrylate (Wio = 0.767, 1.45...

Case I and Case 111 Evaluation. If either the hydrogen insertion or the solvent insertion is the rate-controlling step, the relationship between the reaetion conversion and reaetion time should be linear, as shown in equation (25) for Case 1 and equation (29) for ease 111. The non-hnearity of the experimental conversion vs. time plot in Figure 3.3 suggests that neither hydrogen nor the solvent are ratecontrolling steps. 

Case 11 Evaluation. When kinetic data in terms of reaction conversion vs. time are used to fit the kinetic model expressed by equation (28) with the value of a, 0.0102, determined by the best curve fit, the ealeulated eonversion vs. reaetion time over the entire reaction period presented in Figure 3.4 is in good agreement with the experimental data. 

Figure 3.10 Reaction Conversion vs. Time Figure 3.11 Effect of Initial Substrate at Various Initial Substrate Charges. Charge on Total Reaction Time.

The greater rearrangement of the perovskite stmeture in the catalyst associated with the higher level of Pd-doping may be responsible for the longer indnetion period. After the onset of catalytie activity, the slopes of the two conversion vs. time eurves for X = 0.05 and x = 0.10 in Figure 27. la are very similar, demonstrating that the two catalysts produce the same soluble aetive site in similar amounts. 

Table 32.2. Conversion vs. Time after Condition Change.

Figure 50.1. Comparison of conversion vs. time for the reaction of Scheme 50.1 using HPLC sampling of product concentration to in situ monitoring by FTIR spectroscopy and reaction calorimetry.

Figure 5. VCM/VAc emulsion copolymerization (a) conversion vs. time in a batch reactor for extreme cases (b) instantaneous copolymer compostion (c) start-up procedures in an unseeded CSTR.

FIGURE 8.7 CO conversion vs. time on stream in the CSTR (220°C, 280 psig, H2/CO = 2.5) at (squares) 10 NL/g.at/h and (circles) 20 NL/g.at/h for H2-activated (filled circles) air calcined and (unfilled circles) NO calcined catalysts, including (top) 15% Co/Si02 and (bottom) 25% Co/Si02. The NO calcined catalysts clearly exhibit higher CO conversion rates on a per gram of catalyst basis. 

Isothermal differential scanning calorimetry (DSC) measurements were carried out to investigate the curing kinetics [85]. Conversion vs time curves of DGEBPA-PACP systems prepared with 1 wt % of catalyst and without catalyst at identical curing temperature are overlaid in Fig. 31. 

There are various functions which express with considerable accuracy the conversion vs. time curve of the reaction. However, these functions give unacceptable deviations from experimental values when the crystal sizes are calculated. For example, the power function chosen by Zhdanov (7)... 

Fig. 11. Integrated form of conversion vs. time curves for runs L, M, R, and P (compare Fig. 8) (32)...

Further experiments were therefore carried out with oxygen in the gas phase in order to maintain a high concentration of lattice oxygen in the solid phase. In fig.2 conversion vs time plots are shown for experiments in which the molar ratio 02/l was lower than 0.5. After each experiment (2a and 2b) the catalyst (l.Og of H-Cu-0203T) was reactivated in an Oz-He gas stream which restores its initial activity. 

Acres et al. (22) have speculated on the modes of phosphorus and lead poisoning in monolithic catalysts, based on data obtained in simulated aging. Conversion vs. time-of-exposure curves for catalysts poisoned by either lead or phosphorus show quite different shapes, which the authors attribute to pore-mouth poisoning for phosphorus, and uniform poisoning... 

In a series of runs carried out according to Procedure A using a ratio water/rubber + monomer = 2.4 in the presence of 0.38% of Bz202 the behavior of the monomer-polymer conversion vs, time at 70°C (Figure 1) shows evidences of autoacceleration, which characterizes the homopolymerization of vinyl chloride (3, 5). 

Figure 4.14 Toluene and its intermediates conversions vs. time with inlet toluene concentration of 8 ppm, T = 24-26 °C ...

Figure 6.13 Temperature controlled reaction with the substitution reaction example at different heating rates between 10 and 40°C h l. Upper graph, temperature of reactor (°C), lower graph conversion vs. time (h).

Fig. 1. Data and biphasic chemical reaction model predictions of xylan conversion vs time for batch pretreatment of corn stover with only water at 160,180,200, and 220°C and 5% solids concentration.

Figure 13.6 Conversion vs. time in an isothermal reactor operated at 50°C comparison of experimental data of Xie et al. [7] with simulation in this work.

Figure 2 shows propane conversion vs. time-on-stream (TOS) for reaction-regeneration cycles 1 to 5. Propane conversion at various TOS and product selectivities at TOS = 100 min vs. number of reaction-regeneration cycles are represented in Figs. 2 and 3, respectively. 

In Figure 1 conversion vs. time at varying levels of TiCh is plotted according to Equation 3. After an initial retarded period the plot is linear to at least 20% conversion. The slope after the period of retardation was taken as the rate of polymerization, k. In polymerizations carried to over 20% conversion we have found that the rate, k, begins to fall off slowly, owing to either... 

Conversion vs. time at 30°, 40°, 50°, and 60° C. is shown in Figure 4. An Arrhenius plot of the polymerization rate vs. temperature in Figure 5 indicates an activation energy of about 15 kcal. 

---