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首页> 美国政府科技报告 >Mechanisms of Hydrogen Transfer and Associated Bond Cleavage Reactions: A Rationalization of the Effectiveness of Pyrene in Coal Liquefaction Solvents
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Mechanisms of Hydrogen Transfer and Associated Bond Cleavage Reactions: A Rationalization of the Effectiveness of Pyrene in Coal Liquefaction Solvents

机译：氢转移和相关键裂解反应机理：煤液化溶剂中芘有效性的合理化

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Model compound studies and kinetic analyses have suggested that the effectiveness of pyrene as a hydrogen-transfer agent in coal liquefaction is due to its increased effectiveness in solvent mediated hydrogenolyses which is due in turn to: (1) its relatively high stability among 4-ring aromatics, and (2) the inability of the most predominant radical in the system to terminate as readily as those in other systems. This explanation will be tested by extending to the pyrene system our studies of bond scission promoted by hydrogen-transfer (solvent-mediated hydrogenolysis), and by ''spiking'' coal liquefaction mixtures with model coal linkages subject to such hydrogenolysis to determine if, under actual coal liquefaction conditions, the scission of such structures is accelerated in pyrene. 17 refs., 1 fig., 2 tabs. (ERA citation 11:015467)

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