Premium Lubricant Base Stocks by Hydroprocessing

This chapter discusses the manufacture of premium lubricant base stocks using hydroprocessing technology. After a brief introduction about base stock demand and key base stock properties, we discuss the benefits of premium base stocks versus solvent-refined base stocks and how premium stocks help to meet the stringent specifications of automotive engine oils. The focus of this chapter is on the chemistry and processing of base stocks by modern refining technology, which includes hydrocracking, hydroisomerization, and hydrofinishing. Also included is a brief discussion of syngas-to-liquids (STL ), also called gas-to-liquids (GTL s).