Speciation of the organic sulfur forms in a recent sediment and type I and II-S kerogens by high-pressure temperature-programmed reduction

摘要

Temperature-programmed reduction (TPR) with a well-swept fixed-bed reactor operating at 15 Mpa of hydrogen pressure has facilitated the speciation of the organic sulfur forms in coals and petroleum source rocks through complete hydrodesulfurization with typically 75-80/100 of the sulfur being released as hydrogen sulfide with the remaining 20-25/100 occurring as primarily thiophenic compounds in the oils obtained in high yield. In his study, the technique has been applied to kerogens isolated from a series of unconsolidated Peru margin sediments, and for comparison, to type I and II-S kerogens (Goynuk oil shale and Monterey Fm, respectively) from immature organic-rich rocks.