Process for the elimination of hydrogen sulfide by using water-in-oil emulsions
AssigneeSociete Francaise Hoechst
InventorMabire Frederic
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Abstract
A process for the removal of hydrogen sulfide present in a composition comprising treating the composition with a water-in-oil emulsion wherein said water-in-oil emulsion containing by weight about: 20 to 80% of a dispersed aqueous phase containing about 20 to 70% of one or more aldehydes chosen from the group constituted by formaldehyde, glyoxal, glutaraldehyde, glycolaldehyde or glyoxylic acid and 80 to 30% of an aqueous solution containing 90 to 100% water and 10 to 0% of a buffer agent pH=5.5.+-.1.5; and 80 to 20% of a continuous oil phase containing about 90 to 99% of one or more saturated and liquid C.sub.6 -C.sub.16 hydrocarbons, and 10 to 1% of an emulsifying system constituted by one or more water-in-oil emulsifying agents.
Claims15
A process for the removal of hydrogen sulphide present in a composition comprising treating said composition with a water-in-oil emulsion,
- wherein said emulsion comprises about:
- 20-80% by weight of a dispersed aqueous solution comprising about 20 to 70% by weight of an aldehyde selected from the group consisting glyoxal, formaldehyde, glutaraldehyde, glycolaldehyde and glyoxylic acid, and about 80 to 30% by weight of water and at least one of acetic acid or sodium acetate in a quantity sufficient to provide a buffered pH of 5.5.+-.1.5 and,
- 80 to 20% by weight of a continuous oil phase comprising about 90 to 99% by weight of one or more saturated and liquid C.sub.6 -C.sub.16 hydrocarbons, and about 10 to 1% by weight of an emulsifying system comprising one or more water-in-oil emulsifying agents.
Dependencies are inferred from the claim text.