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84   Environmental Control in Petroleum Engineering















                        Naphthalene















                           Tetralin
                  (Tetrahydronaphthalene)
    Figure 3-6. Structure of some common polyaromatic hydrocarbons.


               H                           H     H
               1                           1     1
           H~C — OH                   H- C— C"        OH
                i i                              1
                                           1 i   1
               H                           H    H
           Methanol                         Ethanol


            H                                  H        H

                 C — OH                              N
                  II
            H    O                             H

           Acetic Acid                      Methylamine
        Figure 3-7. Structure of mixed hydrocarbon compounds.
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