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US 2003/0226786 A1Published application
Process to remove sulfur contaminants from hydrocarbon streams
AssigneeExxonMobil Research and Engineering Company
InventorsJoseph L. Feimer, Bal K. Kaul, Lawrence J. Lawlor
Life of this patent
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Abstract
A process for removing sulfur compounds from hydrocarbon streams by contacting the hydrocarbon stream, especially a gasoline stream, with an adsorbent material. The adsorbent material is regenerated with hydrogen or a hydrogen/H2S mixture.
Claims23
A process for removing sulfur moieties from a sulfur moiety-containing hydrocarbon stream, which process comprises:
- contacting the sulfur moiety-containing hydrocarbon stream with an adsorbent material comprised of at least one Group VIII metal and at least one Group VI metal on a suitable refractory support material until the adsorbent material becomes substantially saturated;
- regenerating the substantially saturated adsorbent material at hydrodesulfurization conditions in the presence of a flow of hydrogen-containing gas at effective pressures and temperatures to result in the desulfurization of at least a portion of the adsorbed sulfur moieties from the adsorbent material.
A process for removing sulfur moieties from a sulfur moiety-containing hydrocarbon stream, which process comprises:
- contacting the sulfur moiety-containing hydrocarbon stream with an adsorbent material comprised of at least one Group VIII metal and at least one Group VI metal on an alumina support until the adsorbent becomes substantially saturated with sulfur moieties;
- regenerating the substantially saturated adsorbent material at hydrodesulfurization conditions in the presence of a flow of hydrogen-containing gas at conditions that include pressures from about 60 to 1000 psig and temperatures from about 100° C. to about 600° C. to result in the desulfurization of at least a portion of the adsorbed sulfur moieties from the adsorbent material.
Dependencies are inferred from the claim text.