This application is in the field of technologies for desulfurization and demercaptanization of raw gaseous hydrocarbons (including natural gas, tail gas, technological gas, etc, including gaseous media). It can be used for simultaneous dehydration and desulfurization/demercaptanization of any kind of raw gaseous hydrocarbons.

A process for the removal of residual sulfur compounds from rich liquid caustic is disclosed where a single column containing two reaction zones catalytically oxidizes mercaptans to disulfide oils. The second reaction zone utilizes a bundle of vertical hanging fibers and is maintained as a gas continuous phase comprising from about 20% to about 100% by volume vapor. This process is especially useful as part of a hydrocarbon desulfurization process flow scheme.

A process for the removal of residual sulfur compounds from rich liquid caustic is disclosed where a single column containing two reaction zones catalytically oxidizes mercaptans to disulfide oils. The second reaction zone utilizes a bundle of vertical hanging fibers and is maintained as a gas continuous phase comprising from about 20% to about 100% by volume vapor. This process is especially useful as part of a hydrocarbon desulfurization process flow scheme.

A treatment method for remediating various contaminants including H.sub.2S, CO.sub.2, NH.sub.3 and other contaminants contained in fluids being extracted from the earth comprises steps of: preparing an aqueous based treatment composition containing water and collectively 35-55 weight percent of one or more hydroxide compounds; injecting a dosage amount of the treatment composition into contaminated fluids located in a subterranean deposit under the earth's surface such that the treatment composition mixes with the fluids deep under the earth's surface; and extracting a mixture of the contaminated fluids and the treatment composition through a well such that the treatment compositions remediates contaminants in the fluids as the mixture passes through the well to the earth's surface, wherein a dosage amount of the treatment composition may be 0.010 to 10.0 ml of the aqueous based treatment composition/liter of the contaminated fluids being extracted from the subterranean deposit.

A treatment method for remediating various contaminants including H.sub.2S, CO.sub.2, NH.sub.3 and other contaminants contained in fluids being extracted from the earth comprises steps of: preparing an aqueous based treatment composition containing water and collectively 35-55 weight percent of one or more hydroxide compounds; injecting a dosage amount of the treatment composition into contaminated fluids located in a subterranean deposit under the earth's surface such that the treatment composition mixes with the fluids deep under the earth's surface; and extracting a mixture of the contaminated fluids and the treatment composition through a well such that the treatment compositions remediates contaminants in the fluids as the mixture passes through the well to the earth's surface, wherein a dosage amount of the treatment composition may be 0.010 to 10.0 ml of the aqueous based treatment composition/liter of the contaminated fluids being extracted from the subterranean deposit.

A process for the removal of residual sulfur compounds from rich liquid caustic is disclosed where a single column containing two reaction zones catalytically oxidizes mercaptans to disulfide oils. The second reaction zone utilizes a bundle of vertical hanging fibers and is maintained as a gas continuous phase comprising from about 20% to about 100% by volume vapor. This process is especially useful as part of a hydrocarbon desulfurization process flow scheme.

A process for the removal of residual sulfur compounds from rich liquid caustic is disclosed where a single column containing two reaction zones catalytically oxidizes mercaptans to disulfide oils. The second reaction zone utilizes a bundle of vertical hanging fibers and is maintained as a gas continuous phase comprising from about 20% to about 100% by volume vapor. This process is especially useful as part of a hydrocarbon desulfurization process flow scheme.

This application is in the field of technologies for desulfurization and demercaptanization of raw gaseous hydrocarbons (including natural gas, tail gas, technological gas, etc, including gaseous media). It can be used for simultaneous dehydration and desulfurization/demercaptanization of any kind of raw gaseous hydrocarbons.

Various embodiments disclosed relate to a method of oxidizing sulfur-containing compounds. The method involves contacting a sulfur-containing compound with a helmet phthalocyaninato-type catalyst in the presence of an oxidant. The present invention also provides a method of removing undesired sulfur-containing compounds from a fluid, such as natural gas, crude oil or an aqueous waste stream.

An oxidative treatment process, e.g., oxidative desulfurization or denitrification, is provided in which the oxidant is produced in-situ using an aromatic-rich portion of the original liquid hydrocarbon feedstock. The process reduces or replaces the need for the separate introduction of liquid oxidants such as hydrogen peroxide, organic peroxide and organic hydroperoxide in an oxidative treatment process.