ACTIVATED OXIDIZING COMPOSITIONS FOR REMOVING SULFUR COMPOUNDS FROM HYDROCARBON FUELS AND WASTEWATER
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United States of America
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Issued Date -
Dec 5, 2024
app pub date -
May 30, 2023
filing date -
May 30, 2023
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Abstract
An oxidizing composition for removing hydrogen sulfide (H2S) from a gaseous or liquid stream includes mixture products of water, sodium hypochlorite, a chelating agent, and a transition metal compound. The chelating agent can be etidronic acid; the transition metal compound can be an iron (III) compound, such as ferric sulfate. The oxidizing composition is formed by (i) combining water, chelating agent, and transition metal compound to form an activator composition and (ii) mixing the activator composition with a sodium hypochlorite solution to adjust the pH, such as for a particular use. Oxidizing compositions suitable for removing H2S from natural gas pipelines or hydrocarbon fuel have a pH of about 10-10.3. Oxidizing compositions suitable for removing H2S from wastewater have a pH of about 9.0-10.1. Oxidizing compositions suitable for cleaning pipelines and provide anti-scaling and anti-corrosion effects have a pH of about 8-9.8.
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