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The Chemistry of Shale Oil and Its Refining
www.eolss.netUNESCO – EOLSS SAMPLE CHAPTERS COAL, OIL SHALE, NATURAL BITUMEN, HEAVY OIL AND PEAT – Vol. II -The Chemistry of Shale Oil and Its Refining - S. H. Guo ©Encyclopedia of Life Support Systems (EOLSS) 2.3 Nitrogen-containing Compounds The nitrogen content in the shale oil is relatively higher than in natural crude oil.