Ava J. Johnson, US2368595A

Process for the Separation of Acidic Gases from Fluids.

On January 30, 1945, Ava L. Johnson of Oakland, California, an assignor to Shell Development Company, patented an improved process for separating acidic gases from water-insoluble fluids. Her method used a high-pressure water wash followed by efficient alkaline scrubbing and steam regeneration, greatly boosting purification and reducing energy costs.

Date of Application: 29 August 1941

Date of Issuance: 30 January 1945

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