Abstract: A porous membrane can include a nanoparticle.

Abstract: A method of manufacturing a membrane can include forming the membrane from a dissolved polymer in the presence of a functionalizing agent; and exposing the functionalizing agent to a nanoparticle to form a modified membrane.

Abstract: A method for increasing sulfur recovery from an acid gas feed comprising the steps of introducing the acid gas feed and a sulfur dioxide enriched air stream to a Claus process to produce a product gas stream, introducing the product gas stream to a thermal oxidizer to produce a flue gas stream, cooling the flue gas stream to produce a cooled take-off stream, separating the cooled take-off stream into a saturated gas stream, heating the saturated gas stream to produce a membrane gas stream, introducing the membrane gas stream to a membrane sweeping unit, the membrane sweeping unit comprises a membrane, the sulfur dioxide in the membrane gas stream permeates the membrane of the membrane sweeping unit, introducing a sweep air stream, the sweep air stream collects the sulfur dioxide to create the sulfur dioxide enriched air stream.

Abstract: A method for recovering sulfur from an acid gas feed is provided. The method comprising the steps of mixing the acid gas feed and an absorption process outlet stream to form a combined Claus feed, introducing the combined Claus feed and a sulfur dioxide enriched air feed to a Claus process to produce a Claus outlet gas stream, introducing the Claus outlet gas stream to a thermal oxidizer, treating the thermal oxidizer outlet stream in a gas treatment unit to produce a dehydrated stream, introducing the dehydrated stream to a membrane sweeping unit to produce a sweep membrane residue stream and a sulfur dioxide enriched air feed, introducing a sweep air stream to a permeate side of the membrane sweeping unit, and introducing the sweep membrane residue stream to a sulfur dioxide absorption process to produce the absorption process outlet stream and a stack feed.

Abstract: A method for recovering sulfur from an acid gas feed is provided. The method comprising the steps of mixing the acid gas feed and an absorption process outlet stream to form a combined Claus feed, introducing the combined Claus feed and a sulfur dioxide enriched air feed to a Claus process to produce a Claus outlet gas stream, introducing the Claus outlet gas stream to a thermal oxidizer, treating the thermal oxidizer outlet stream in a gas treatment unit to produce a dehydrated stream, introducing the dehydrated stream to a membrane sweeping unit to produce a sweep membrane residue stream and a sulfur dioxide enriched air feed, introducing a sweep air stream to a permeate side of the membrane sweeping unit, and introducing the sweep membrane residue stream to a sulfur dioxide absorption process to produce the absorption process outlet stream and a stack feed.

Abstract: A method for increasing sulfur recovery from an acid gas feed comprising the steps of introducing the acid gas feed and a sulfur dioxide enriched air stream to a Claus process to produce a product gas stream, introducing the product gas stream to a thermal oxidizer to produce a flue gas stream, cooling the flue gas stream to produce a cooled take-off stream, separating the cooled take-off stream into a saturated gas stream, heating the saturated gas stream to produce a membrane gas stream, introducing the membrane gas stream to a membrane sweeping unit, the membrane sweeping unit comprises a membrane, the sulfur dioxide in the membrane gas stream permeates the membrane of the membrane sweeping unit, introducing a sweep air stream, the sweep air stream collects the sulfur dioxide to create the sulfur dioxide enriched air stream.

Abstract: Techniques for treating a natural gas feed stream include receiving a natural gas feed stream that includes one or more acid gases, one or more hydrocarbon fluids, and one or more non-hydrocarbon fluids; circulating the natural gas feed stream to a membrane module; separating, with the membrane module, at least a portion of the one or more acid gases into a permeate stream and at least a portion of the one or more hydrocarbon fluids into a reject stream; circulating the permeate stream to a distillation unit; and separating, in the distillation unit, the one or more acid gases from the one or more non-hydrocarbon fluids.

Abstract: A method for increasing sulfur recovery from an acid gas feed comprising the steps of introducing the acid gas feed and a sulfur dioxide enriched air stream to a Claus process to produce a product gas stream, introducing the product gas stream to a thermal oxidizer to produce a flue gas stream, cooling the flue gas stream to produce a cooled take-off stream, separating the cooled take-off stream into a saturated gas stream, heating the saturated gas stream to produce a membrane gas stream, introducing the membrane gas stream to a membrane sweeping unit, the membrane sweeping unit comprises a membrane, the sulfur dioxide in the membrane gas stream permeates the membrane of the membrane sweeping unit, introducing a sweep air stream, the sweep air stream collects the sulfur dioxide to create the sulfur dioxide enriched air stream.

Abstract: A method for recovering sulfur from an acid gas feed is provided. The method comprising the steps of mixing the acid gas feed and an absorption process outlet stream to form a combined Claus feed, introducing the combined Claus feed and a sulfur dioxide enriched air feed to a Claus process to produce a Claus outlet gas stream, introducing the Claus outlet gas stream to a thermal oxidizer, treating the thermal oxidizer outlet stream in a gas treatment unit to produce a dehydrated stream, introducing the dehydrated stream to a membrane sweeping unit to produce a sweep membrane residue stream and a sulfur dioxide enriched air feed, introducing a sweep air stream to a permeate side of the membrane sweeping unit, and introducing the sweep membrane residue stream to a sulfur dioxide absorption process to produce the absorption process outlet stream and a stack feed.

Abstract: A method for increasing sulfur recovery from an acid gas feed comprising the steps of introducing the acid gas feed and a sulfur dioxide enriched air stream to a Claus process to produce a product gas stream, introducing the product gas stream to a thermal oxidizer to produce a flue gas stream, cooling the flue gas stream to produce a cooled take-off stream, separating the cooled take-off stream into a saturated gas stream, heating the saturated gas stream to produce a membrane gas stream, introducing the membrane gas stream to a membrane sweeping unit, the membrane sweeping unit comprises a membrane, the sulfur dioxide in the membrane gas stream permeates the membrane of the membrane sweeping unit, introducing a sweep air stream, the sweep air stream collects the sulfur dioxide to create the sulfur dioxide enriched air stream.

Abstract: A method for recovering sulfur from an acid gas feed is provided. The method comprising the steps of mixing the acid gas feed and an absorption process outlet stream to form a combined Claus feed, introducing the combined Claus feed and a sulfur dioxide enriched air feed to a Claus process to produce a Claus outlet gas stream, introducing the Claus outlet gas stream to a thermal oxidizer, treating the thermal oxidizer outlet stream in a gas treatment unit to produce a dehydrated stream, introducing the dehydrated stream to a membrane sweeping unit to produce a sweep membrane residue stream and a sulfur dioxide enriched air feed, introducing a sweep air stream to a permeate side of the membrane sweeping unit, and introducing the sweep membrane residue stream to a sulfur dioxide absorption process to produce the absorption process outlet stream and a stack feed.

Abstract: A method for removing sulfur-containing compounds from a sulfur recovery unit (SRU) tail gas stream includes the steps of introducing the SRU tail gas stream to a reducing unit to produce a membrane feed, the reducing unit configured to reduce the sulfur-containing compounds to hydrogen sulfide, introducing the membrane feed to a hydrogen sulfide membrane unit, the hydrogen sulfide membrane unit comprising a membrane, wherein the membrane feed comprises hydrogen sulfide, allowing the membrane feed to contact a feed side of the membrane such that hydrogen sulfide permeates through the membrane to a permeate side, and collecting the retentate gases that fail to permeate through the membrane to produce a stack feed, wherein the stack feed comprises retentate gases.

Abstract: A porous membrane can include a nanoparticle.