Abstract:

The free hydrocarbon and vacuum pyrolyzed hydrocarbon of Botryococcus are analyzed by GC-MS system. The free hydrocarbon is mainly composed of C₂₇-C₃₃ alkenes,and also contains C₁₃-C₂₅ n-alkane, C₁₅-C₂₁ is oprenoid alkanes and trace sterane and terpane as well. The pyrolyzed hydrocarbon is C₁₃-C₃₆ n-alkanes, C₁₅-C₂₁is oprenoid alkanes, sterane and terpane. The author considers that the hydrocarbon of Botryococcus bearing Neogene mudstones in Gudong Region, Shengli Oilfield in Shandong, are generated by Botryococcus.