Abstract: One exemplary embodiment can be a process for removing one or more sulfur compounds from a first liquid. The process can include passing the first liquid through a first inlet and a second liquid through a second inlet, and passing the first liquid through a first outlet and the second liquid through a second outlet of a vessel. The vessel may further have a plurality of vortex contactors. Often, the plurality of vortex contactors has a first vortex contactor, in turn including at least one wall and a frustum. The at least one wall can form a perimeter about an interior space and include a first side and a second side forming a passageway communicating the first liquid from an exterior to the interior space, and a frustum positioned proximate to the passageway and abutting the at least one wall for facilitating contacting of the first and second liquids to extract the one or more sulfur compounds from the first liquid to the second liquid.

Abstract: One exemplary embodiment can be a process for extracting one or more sulfur compounds. The process may include mixing a hydrocarbon stream containing the one or more sulfur compounds with an alkaline stream in at least one vessel. Often, the at least one vessel includes a member forming a perimeter about an interior space and having a first side and a second side forming a passageway communicating at least one of the hydrocarbon stream and the alkaline stream from an outer surface of the member to the interior space, and a frustum. The frustum can be positioned proximate to the passageway and abutting the member for facilitating contacting of the hydrocarbon stream and the alkaline stream.

Abstract: One exemplary embodiment can be a process for removing one or more disulfide compounds from a caustic stream. The process may include passing the caustic stream, previously contacted with a hydrocarbon stream for removing one or more thiol compounds, through a vessel containing a coalescing element to remove the one or more disulfide compounds downstream of a three-phase separator and a thiol oxidation zone.

Abstract: One exemplary embodiment can be a process for removing one or more sulfur compounds from a first liquid. The process can include passing the first liquid through a first inlet and a second liquid through a second inlet, and passing the first liquid through a first outlet and the second liquid through a second outlet of a vessel. The vessel may further have a plurality of vortex contactors. Often, the plurality of vortex contactors has a first vortex contactor, in turn including at least one wall and a frustum. The at least one wall can form a perimeter about an interior space and include a first side and a second side forming a passageway communicating the first liquid from an exterior to the interior space, and a frustum positioned proximate to the passageway and abutting the at least one wall for facilitating contacting of the first and second liquids to extract the one or more sulfur compounds from the first liquid to the second liquid.

Abstract: One exemplary embodiment can be a process for extracting one or more sulfur compounds. The process may include mixing a hydrocarbon stream containing the one or more sulfur compounds with an alkaline stream in at least one vessel. Often, the at least one vessel includes a member forming a perimeter about an interior space and having a first side and a second side forming a passageway communicating at least one of the hydrocarbon stream and the alkaline stream from an outer surface of the member to the interior space, and a frustum. The frustum can be positioned proximate to the passageway and abutting the member for facilitating contacting of the hydrocarbon stream and the alkaline stream.

Abstract: One exemplary embodiment can be a process. The process can include obtaining a hydrocarbon phase having one or more hydrocarbons and an alkylation catalyst from a first vessel, swirling the hydrocarbon phase to separate the alkylation catalyst, and recycling the alkylation catalyst to an alkylation reactor.