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Table 2 Concentrations (μg g-1yrolysate or oil) of alkylcarbazoles, benzocarbazoles and alkylindoles in hydropyrolysates generated from solvent extracted Kimmeridge Clay Formation (samples KC3 and KC4) and Miller Field (North Sea) production oil

From: Release of organic nitrogen compounds from Kerogen via catalytic hydropyrolysis

Sample Alkylcarbazoles Benzocarbazoles Alkylindoles C2-indoles
  Carbazole C1- carbazoles C2-carbazo [a] [b] [c] [b] [a] + [c] [a] [a] + [c] Indole C1-indole  
KC3 19.3 65.3 91.8 2.9 1.8 4.5 0.24 0.39 40.4 121.7 131.4
KC4 227.9 358.1 321.4 20.7 8.0 19.4 0.20 0.52 21.0 127.6 284.6
Miller Oil 7.6 29.6 70.2 2.8 0.4 1.9 0.09 0.60 -- -- --