Conversion as a function of temperature

Figure 9. CO conversion as a function of temperature for supported gold catalysts (a) Au/Zr02, (b) Au/Ti02 (both PVA protected) (Reprinted from Reference [24], 2006, with permission from American Chemical Society).

Table 106 Conversion as a function of temperature over M/TiOz catalysts with 0.5 cm3 of catalyst and a space velocity of 4000 h 1 and a steam/gas ratio of 0.7 491...

Table 113 CO conversion as a function of temperature for 3%Pt-2%Re/Ti02 (rutile) catalysts in a feed containing a H20/C0 ratio of 1.5 and a CO SY of 9500 cm-1 498...

Putting T values into Eq. (iii), then K into Eq. (iv), as shown in Table E9.2 gives the changing equilibrium conversion as a function of temperature in the range of 0°C to 100°C. This result is displayed in Fig. E9.2. 

In order to compare the activities of the catalysts, the temperature at which 20% oxygen conversion is reached is displayed in Table I, while the oxygen conversion as a function of temperature is shown in Figure la. The increase in activity caused by the addition of vanadium is remarkable good results were also obtained for the chromium-containing material. In both cases, the temperature at which reaction started was 200 °C below that required for the unpromoted Nb205. The addition of molybdenum also increased the activity, but molybdenum was lost... 

Figure 2.16 Methanol conversion as a function of temperature hydrogen selectivity vs. methanol conversion for autothermal methanol reforming [39] (by courtesy of ACS).

The calculated thermodynamic equilibrium conversions and product compositions for propylene disproportionation at 200 to 400 C were reported by Heckelsberg, Banks, and Bailey16). Atlar, Pis man, and Bakhshi-Zade 8S) made similar calculations for the 50 - 300 °C range. They noted that the equilibrium constants were independent of pressure. Banks and Regier 57) showed thermodynamic equilibrium conversions as a function of temperature for the various reactions involved in the synthesis of isoamylene via disproportionation (Fig. 3). A comparison of calculated equilibrium composition for... 

The chromia/alumina catalyst was of interest for possible applications with chlorocarbons. Conversions as a function of temperature for chloronated hydrocarbon oxidation with this material are given in Table 3. Over temperature, the conversion of... 

Figure 10.6 Conversion as a function of temperature for various supported gold catalysts (1) A11/FC2O3 (2) Au/Fe203-Zn0 (3) Au/Fe203-ZrC>2 (4) Au/ZrC>2 all were made by DP onto freshly precipitated hydroxides. Conditions similar to those of Figure 10.5.

Figure 14. Equilibrium limitation of exothermic reactions. A) Equilibrium conversion as a function of temperature B) Optimum reaction rate curve C) Improvement of conversion by multiple beds with interstage cooling.

Figure 4. Conversion as a function of temperature and pressure in a high pressure continuous reactor (flow rate of C02 was 1 L/min).

Exothermic Reactions. Figures 8-6 and 8-7 show typical plots of equilibrium conversion as a function of temperature for an exotiiermic reaction. To determine the maximum conversion that can be achieved in an exothermic reaction carried out adiabaticaUy, we find the intersection of the equilibrium conversion as a function of temperature with temperature-conversion relationships from the energy balance (Figure 8-7). For Tjo = Tq, ... 

Substituting Equation (E8-8.4) into (B8-8.2) we can calculate equilibrium conversion as a function of temperature ... 

C Hp) carbon monoxide and nitrogen conversions as a function of temperature for catalyst samples sintered under four different gas atmospheres... 

Typical results for zeolite (MFS) membranes are collected in Table 9.15 and partly discussed in Section 9.4.3. As is shown in the table the separation factor of mixtures of weakly and strongly adsorbing gases (see Section 9.4.3) shows a conversion as a function of temperature. 

Figure 10.19. CO conversion as a function of temperature over a dyno-aged (100,000 mile equivalent) Pd-only catalyst formulation after various combinations of catal rst pre-treatnwnt Oxidizing or Bieducing) and reaction gas mixtures (Lean or Stoichiometric). [34]...

Before measuring the conversion as a function of temperature, the catalysts were stabilized by letting the reaction proceed for 16 h at 150°C. The conversion was measured as a function of time during this period, at which end it reached a constant value. Then, the temperature was decreased to 100°C and increased by steps of 20 or 10°C until complete combustion was obtained. The conversion was then again measured at 150°C to verify ftat the conversion at the end of the test was the same as after the preliminary stabilisation period. 

Fig. 1 NO, conversion as a function of temperature for CeNa-MOR. (GHSV = 43000h , 900 ppmv NO, 900 ppmv NH, 5 vol.% O, ...

Fig. 8 - Percentage conversion as a function of temperature for C Hg oxidation over three Pt/7 Al203 catalysts of different Pt concentrations.

Fig. 26A-D. Isobutylene polymerization, GPC traces of PIBs A as a function of solvent polarity at similar conversions at — 80 CC B at the same time at — 80 °C C at similar low conversions as a function of temperature D higher conversions as a function of temperature...

Figure 5. HC, CO and NO conversion as a function of temperature when the HC mixture contains CH4, C2H2, C2H4 and C3H8...

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