Kerogen Chemistry 9. Removal of Kerogen Radicals and Their Role in Kerogen Anhydride Decomposition

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• 作者：John W. Larsen ; Ryuichi Ashida ; Paul Painter ; and David C. Doetschman
• 刊名：Energy & Fuels
• 出版年：2006
• 出版时间：May 2006
• 年：2006
• 卷：20
• 期：3
• 页码：1220 - 1226
• 全文大小：391K
• 年卷期：v.20,no.3(May 2006)
• ISSN：1520-5029

文摘

By treatment with CrCl₂, the radical populations of Kimmeridge and Bakken kerogens were significantlydecreased. When both kerogens are mildly heated, anhydride formation at low temperatures can be detectedby infrared spectroscopy only when radicals have been removed by CrCl₂ treatment. The "native" kerogenradicals react with thermally formed carboxylic acid anhydrides to form esters and CO. Some of the observablekerogen radicals are persistent and reactive. The Acholla and Orr method for pyrite removal also reduces theradical population of these kerogens.