Hydrocracking of Maya Crude Oil

The same Maya crude oil was used as feedstock. More details of Maya crude oil properties and its classification respect to other crudes according to the content of metals, sulfur, and API gravity were reported by Rana et al. (2007). The same NiMo/ AI2O3 commercial catalyst, loading and sulfiding procedures, as well as characterization techniques were also used. Other experimental details were reported previously (Ancheyta et al., 2001). Experiments were conducted at the following conditions pressure of 6.9, 8.3, and 9.8 MPa, temperature of 380°C-420°C, 5000 standard cubic feet per barrel of H2/oil ratio, and 1.5,0.5, and 0.33 h EHSV in the same isothermal bench-scale unit mentioned in the previous section. 

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Sanchez, S., Ancheyta, J. 2007. Effect of pressure on the kinetics of moderate hydrocracking of Maya crude oil. Energy Fuels 21 653-661. 

MODELING HYDROCRACKING OF MAYA CRUDE OIL 11.5.1 Experimental Results... 

MODELING THE EFFECT OF PRESSURE AND TEMPERATURE ON THE HYDROCRACKING OF MAYA CRUDE OIL... 

After the application of the procedure described in Figure 11.2 and recommendations given earlier, a set of model parameters of the continuous kinetic model for the case of study of Maya crude oil hydrocracking was obtained. The values were a = 0.245, flo = 1-396, = 22.0, 8 = 4.46 x lO , and = 0.537h->. 

A comparison of the fitting capability of all functions reported in Tables 12.20 and 12.21 was performed by statistical methods. The procedure for parameter estimation is described below the four-parameter Beta-distribution function nsing a single distillation data set is taken as an example, which corresponds to a simnlated distillation curve of hydrocracked Maya crude oil ... 

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