Boiling-point distribution

The primary difference in shale oils produced by different processing methods is in boiling point distribution. Rate of heating, as well as temperature level and duration of product exposure to high temperature, affect product type and yield (28). Gas combustion processes tend to yield slightly heavier hquid products because of combustion of the lighter, ie, naphtha, fractions. 

FIGURE 1.5 Boiling point distribution of the resid and VGO, and that of the 650°F-750°F recycle streams obtained from them, at 55% and 54% conversion, respectively. The boiling point distribution of 650°F-750°F recycle streams from VGO and resid are identical. 

The two residue feeds B and C have almost identical boiling point distribution, but the density and the Conradson carbon content value are somewhat higher for feed C than for feed B. This indicates that feed C should be a little bit more difficult to crack than the B feed and this was also notified when the two feeds were to be tested in the pilot unit. 

Reid vapor pressure (RVP) Boiling point distribution Specific gravity Molecular weight... 

The liquid products were analysed by capillary gas chromatography (GC) and peak identifications were made with the aid of GC-MS used in conjunction with concentration of the aromatic species by open-column adsorption chromatography on alumina. To give a clear indication of the boiling point distribution of the products, the peaks in the chromatograms have been grouped using successive n-alkanes. This procedure could not be used as precisely for the n-hexadecane/quinoline mixtures because of overlap of the quinoline and product peaks close to Cu,... 

If we then compared the solvents isolated after preheating at low and high severities we find that the solvent which has been subjected to higher severity is shifted to higher boiling point distribution by virtue of the loss of lighter boiling components. 

Figure 4 shows the boiling-point distribution, simulated by gas chromatography (ASTM D2887) for the major Fractions E,... 

Figure 4. Boiling-point distribution of neutrals, E, A Acid-1, C, Acid-11,...

Figure 1. Boiling point distribution of products from catalytic cracking...

Simulated Distillation Results. Important insight concerning the molecular-size distribution of asphaltenes vs. maltenes is gained by the simulated distillation data. The boiling point distribution curves are shown in Figure 3. These curves were drawn as follows. Quantitative simulated distillation data was obtained on the virgin bitumen and the maltenes. Direct information is obtained up to a nominal boiling point of 535°C shown by the vertical dashed line. The area under the curve for the nonvolatile portion is... 

Figure 5.19 Boiling point distribution of commercial gasoline, kerosene and diesel, and LO and HO products obtained in the KIER process...

Figure 7.7 Boiling point distribution of liquid fuel formed over US-Y zeolite, a commercial cracking catalyst, a pillared clay (polymer-to-catalyst ratio 2 1) and comparison with a commercial gasoline sample...

Fignre 7.7 compares the boiling point distribution of liqnid products formed over US-Y, a commercial cracking catalyst and a pillared clay. In the same figure is plotted the boiling point distribution of a commercial gasoline sample. 

Figure 13.6 Simulated distillation boiling point distributions of HDPE pyrolysis condensates...

Table 14.5 Boiling point distribution of reaction products for polyethylenes...

Y. Shiraga, M. A. Uddin, A. Muto, M. Narazaki, Y. Sakata, and K. Murata, Boiling point distributions and dechlorination of organic chlorine compounds in oil obtained from the degradation of PVC mixed plastic, Energy Fuels., 13, 428-432 (1999). 

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