Elucidation of Hydrogen Behavior in coal Using a Tritium Tracer Method: Hydrogen Transfer Reaction of Coal with Tritiated Gaseous Hydrogen in a Flow Reactor

摘要

The hydrogen transfer reactions of tree Argonne coals with tritiated gaseous hydrogen were carried out using a flow fixed-bed reaction system in the presence of Pt/Al_2O_3 catalyst at a temperature range 200-300 deg.C and under pressure of 1.5-5.0 Mpa to trace the behavior of hydrogen in coal. In the reactions under a constant pressure of 5.0 Mpa, it was found that the hydrogen exchange between tritiated hydrogen atoms generated from the Pt catalyst and hydrogen in functional groups such as hydroxy groups proceeded at temperatures as low as 200 deg.C for lignite Beulah-zap (ND) and middle rank Illinois No. 6 (IL) coals.