Chemical compositions and methods for remediating hydrogen sulfide and other contaminants in hydrocarbon based liquids and aqueous solutions without the formation of precipitates or scale
First Claim
1. An aqueous based treatment solution for remediating hydrogen sulfide (H2S) and other contaminants in liquids and substantially without formation of precipitate, the treatment solution comprising:
- at least one hydroxide compound;
at least one organic acid comprising a fulvic acid; and
water, whereina collective concentration of the at least one hydroxide compound in the treatment solution is in a range of 35-55 weight %,a content of water in the treatment solution is at least 30%, anda collective concentration of the at least one organic acid in the treatment solution is at least 0.01 weight %.
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Abstract
A treatment process for remediating a contaminated liquid containing more than 5 ppm hydrogen sulfide (H2S) and substantially without formation of precipitate, includes steps of steps of adding an aqueous solution containing at least one hydroxide compound at a collective concentration of 35-55 wt % to the contaminated liquid to achieve a concentration of 125-5000 ppm of the hydroxide compounds in the contaminated liquid, adding at least one organic acid and to the liquid to achieve a concentration of 0.01-10 ppm in the contaminated liquid, and dispersing the aqueous solution and the at least one organic acid in the contaminated liquid and allowing the aqueous solution and the at least one organic acid to react with the contaminated liquid for a period of time until a concentration of hydrogen sulfide in the contaminated liquid is reduced to ≤5 ppm.
15 Citations
22 Claims
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1. An aqueous based treatment solution for remediating hydrogen sulfide (H2S) and other contaminants in liquids and substantially without formation of precipitate, the treatment solution comprising:
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at least one hydroxide compound; at least one organic acid comprising a fulvic acid; and water, wherein a collective concentration of the at least one hydroxide compound in the treatment solution is in a range of 35-55 weight %, a content of water in the treatment solution is at least 30%, and a collective concentration of the at least one organic acid in the treatment solution is at least 0.01 weight %. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A treatment process for preparing a remediated liquid from a contaminated liquid originally containing more than 5 ppm hydrogen sulfide (H2S) and substantially without forming a precipitate, comprising steps of:
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preparing an aqueous solution containing at least one hydroxide compound, in which a collective concentration of the at least on hydroxide compound in the aqueous solution is in a range of 35-55 weight % and a content of water is at least 30 weight %; adding the aqueous solution to the contaminated liquid at a dosage amount which provides a concentration of the at least one hydroxide compound within a range of 125-5000 ppm in the contaminated liquid; adding at least one organic acid comprising a fulvic acid to the contaminated liquid at a dosage which provides a concentration of the at organic acid of at least 0.01 ppm in the contaminated liquid; and dispersing the aqueous solution and the at least one organic acid in the contaminated liquid and allowing the aqueous solution and the at least one organic acid to react with the contaminated liquid for a period of time until a concentration of hydrogen sulfide in the contaminated liquid is reduced to ≤
5 ppm. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification