Reactions of water-washed chunks of a deeply buried Green River oil shale (2880–2920 ft, well below the water table) have been carried out in N₂–H₂O and CO–H₂O for up to 28 days at temperatures in the range of 280–370 °C. Large variations in yields of liquid products were observed for reactions below 330–340 °C. These were attributed to varying mineralogy in the chunks because the variations disappeared for reactions of ground samples or reactions above 330–340 °C, at which point the chunks disintegrated. Liquid-product yields of up to 70 wt % dry mineral matter free could be obtained from the chunks at temperatures as low as 320 °C, provided that long reaction times of 14 or 28 days were used. In particular, at lower temperatures, yields were higher under N₂ than under CO, but the quality of the CO–H₂O petroleum or oil/gas products tended to be better than that of N₂–H₂O products. The liquid products contained 1–2 wt % nitrogen, were high in aliphatic material, and contained significant amounts of heavily substituted aromatic rings.

中文翻译：

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绿河油页岩的长期，低温反应

在温度为N ₂ -H ₂ O和CO-H ₂ O中，经过深埋的Green River油页岩（2880–2920 ft，远低于地下水位）的水洗块反应长达28天。在280–370°C的范围内。在低于330-340°C的温度下，观察到液体产品的收率差异很大。这些归因于大块中矿物学的变化，因为地面样品的反应或330-340°C以上的反应消失了，这时大块崩解了。只要使用14或28天的较长反应时间，就可以在低至320°C的温度下从块料中获得最高70 wt％的无干矿物物质的液体产品收率。特别是在较低的温度下，氮肥下的产量更高₂比在CO条件下要好，但是石油或油气产品的CO–H ₂ O产品的质量往往要好于N ₂ –H ₂ O产品。液态产品含有1-2 wt％的氮，脂肪族物质含量很高，并且含有大量的高度取代的芳环。