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AssigneeBaker Hughes Oilfield Operations LLC
InventorsSankaran Murugesan, Jerry J. Weers, Sai Reddy Pinappu, Onome Ugono, Kekeli A. Ekoue-Kovi
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Non-acidic sulfur compounds (e.g., thiols) can be selectively extracted from a hydrocarbon stream containing them (e.g., crude oil) by contacting the hydrocarbon stream with a carbonate solvent that contains at least one organic carbonate (e.g., propylene carbonate) in an amount effective to selectively absorb and extract the non-acidic sulfur compounds therefrom. The carbonate solvent may optionally also comprise an additional solvent (e.g., caprolactam), a soluble metal salt (e.g., a metal salt where the metal is iron), and/or a mercaptan scavenger that is a heterocyclic amine (e.g., oxazolidine).
A method for selectively extracting non-acidic sulfur compounds from a hydrocarbon stream containing the non-acidic sulfur compounds, the method comprising:
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A treated stream comprising:
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Dependencies are inferred from the claim text.