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AssigneesBoard of Trustees of Southern Illinois University, The Illinois State Geological Survey
InventorsRichard H. Shiley, Randall E. Hughes, John R. Webster, Conrad C. Hinckley, Gerald V. Smith, Tomasz Wiltowski
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A process for desulfurizing carbonaceous material containing inorganic bound sulfur, organic bound sulfur, or conbinations thereof. The process comprises reacting the carbonaceous material at desulfurization conditions with a hydrogen source material in the presence of a reaction accelerator to enhance production and reactivity of atomic hydrogen supplied by the hydrogen source. The reaction is prefereably carried out in the presence of a flowing reaction medium which carries away hydrogen sulfide products and other volatile desulfurization products separating them from the carbonaceous material.
A process for desulfurizing carbonaceous material containing inorganic bound sulfur, organic bound sulfur, or a combination thereof comprising reacting the carbonaceous material at desulfurization conditions with a hydrogen source material comprising an alcohol, a hydrocarbon, an alicyclic compound, hydrogen, or a combination thereof in the presence of a flowing gas medium comprising a reaction accelerator comprising oxygen, nitric oxide, or a combination thereof to enhance production and reactivity of atomic hydrogen supplied by said hydrogen source.
A process for desulfurizing carbonaceous material containing inorganic bound sulfur, organic bound sulfur, or a combination thereof comprising treating the carbonaceous material at a temperature of about 300.degree. C. to about 500.degree. C. and a pressure of about 100 psig to about 500 psig with an alcohol having between 1 and about 3 carbon atoms and a flowing gaseous medium comprising about 0.1 to about 2.0 volume percent reaction accelerator comprising oxygen, nitric oxide, or a combination thereof to enhance production and reactivity of atomic hydrogen supplied by said alcohol, said inorganic bound sulfur and/or said organic bound sulfur reacting with said atomic hydrogen to produce hydrogen sulfide which is carried away from said carbonaceous material by said flowing medium.
A process for desulfurizing carbonaceous material containing inorganic bound sulfur, organic bound sulfur, or a combination thereof comprising treating the carbonaceous material at a temperature of about 300.degree. C. to about 500.degree. C. and a pressure of about 100 psig to about 500 psig with a flowing gaseous medium comprising methane and a reaction accelerator comprising oxygen, nitric oxide, or a combination thereof to enhance production and reactivity of atomic hydrogen supplied to said methane, said inorganic bound sulfur and/or said organic bound sulfur reacting with said atomic hydrogen to produce hydrogen sulfide which is carried away from said carbonaceous material by said flowing medium.
Dependencies are inferred from the claim text.