ABSTRACT
Emulsions can also be broken by the addition of treating agents such as soaps, fatty acids, sulfonates, and long-chain alcohols. When a chemical is used for emulsion breaking during desalting, it may be added at one or more of three points in the system. First, it may be added to the crude oil before it is mixed with fresh water. Second, it may be added to
318 STAGE 1
x,
v
Figure 13.5 A two-stage desalting system.
