Oxidative desulfurization of crude oil incorporating sulfone decomposition by alkaline earth metal oxides

Ramanathan Sundararaman, Chunshan Song

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

This work explores a novel approach to desulfurization of whole crude oil where thiophenic sulfur compounds are oxidized to sulfones followed by sulfone decomposition into sulfur-free hydrocarbons. The objective of this work is to study the effect of alkaline earth metal oxides on decomposition of sulfones in oxidized crude oil. About 73% of the sulfones in a preoxidized, medium sour crude oil was decomposed over CaO at 360 °C. SO2 was detected by TPD-MS and also measured by a quantitative method when the spent CaO sorbent was thermally treated in an inert atmosphere with sweep gas. No prominent decomposition of sulfur compounds was observed when untreated crude oil (not oxidized) was treated over CaO at 360 °C. This study demonstrates the feasibility of decomposing sulfones in oxidized crude oil over CaO-based materials.

Original languageEnglish (US)
Pages (from-to)6372-6376
Number of pages5
JournalEnergy and Fuels
Volume27
Issue number11
DOIs
StatePublished - Nov 21 2013

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology

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