A pressure vessel is subjected to various loads which develop stresses that are categorized by the ASME Code as: • Primary • Secondary • Peak…
Category: Process Design
The forces applied to a vessel and its structural attachments are called loads, and the first requirement in vessel design is to determine the loads…
Flow of Liquids Oil and water flow downward to the left of the horizontal baffle in Figure 300-7. Bulk oil passes through the coalescer pad;…
Surge volume for hydrocarbon is the space between the high liquid level (HLL) at the “donut” baffle ring and the low liquid level (LLL) at…
Allowable mass velocity, based on the full cross section of the vessel (not the circular space inside the shroud) is Gc from Equation 300-1, multiplied…
Feed may enter tangentially as shown in Figure 300-7 (expensive in a thick-wall vessel) or straight in with a right-angle turn (Figure 300-8). Feed pipe…
A horizontal separator is not often used ahead of a compressor because of the possibility of entrained liquid in the vapor. The situation can be…
The water surge volume in the drawoff leg is found from criteria in Section 333. This is the volume between maximum and minimum levels shown…
If water separation is not a requirement, any of the vessel sizes meeting the surge volume and L/D requirements in Section 352 may be chosen.…
Determine shell dimensions by trying various combinations of diameter, length, and liquid depth. For any trial diameter, the maximum liquid level is known from the…