where View the MathML source is a cost of vessel, which includes nozzles, manholes, and support equipment. Equation (8) and Equation (9) apply for the vessels constructed using stainless steel and flash volumes between 1 m3 to 10 m3. The vessels in this work were designed using residence times of 1.188 ks for the flash drum and 1.692 ks for the decanter, respectively.
3.5. Reactors
The design of HRD reactor is based on using Pd/C catalyst and a residence time (τR) of 1.800 ks under the conditions of 375 °C and 4 MPa [24]. The isomerization reactor operates under the conditions of 340 °C and 3 MPa, with liquid hour space velocity (LHSV) of 1 h−1. To obtain the f.o.b. of the reactor, the volumetric flowrate (View the MathML source) can be calculated using Aspen Plus, and the reactor volumes (V) are estimated using the following equation: