Acid Gas Removal (AGR)

Definition - What does Acid Gas Removal (AGR) mean?

Acid gas removal refers to an industrial gas purification procedure used to remove hydrogen sulfide (H2S) and carbon dioxide (CO2) from mineral resources.

Acid gas removal involves the use of aqueous solutions (amines) that react with the existing mixture. This practice is vital because hydrogen sulfide promotes corrosion of any metal process vessel it is housed or transported in.

Acid gas removal may also be known as gas sweetening, amine scrubbing or amine gas treatment.

Corrosionpedia explains Acid Gas Removal (AGR)

Acid gas removal is a widely used practice in the petroleum industry to reduce the hydrogen sulfide content of petroleum end products. Crude oil with a high concentration of hydrogen sulfide is referred to as sour, while crude oil with a low concentration of hydrogen sulfide is referred to as sweet.

Hydrogen sulfide is extremely toxic to humans and the environment. High hydrogen sulfide levels in final petroleum products are strongly discouraged by several mineral resource extraction standards.

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