Feedstocks and Base Stocks General Compositional Aspects

4 FEEDSTOCKS AND BASE STOCKS GENERAL COMPOSITIONAL ASPECTS 

As a consequence, we have to rely on the identification of groups or lumps of compounds that fall into similar chemical classifications. This approach has been quite successful as a means of either separating or quantifying them by instrumental methods. 

Source K.H. Altgelt and M.M Boduzynski, Composition and Analysis of Heavy Petroleum Fractions (New York Marcel Dekker 1993) With permission. 

FIGURE 1.4 Basic chemical types present in lube feedstocks and in many base stocks. 

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