ABSTRACT

Since the last review of “Alkylated aromatics” in the 2nd edition of “Synthetic Lubricants and High Performance Functional Fluids” [1], new commercial alkylnaphthalene fluids with unique properties have become available and numerous papers and patents have reported unique performance features for alkylated aromatic fluids. In this chapter, we summarize these new developments together with key points discussed in the previous edition, to make this chapter a comprehensive review of this subject.

Aromatic components are known to be present in most petroleum-derived base stocks. Conventional solvent refined base stocks usually contain 20 to 40 wt% aromatics [2], depending on the crude source and refining process. The aromatic components in these base stocks are complex mixtures containing mono-, di-, and poly-nuclear