Ava J. Johnson, US2368595A
Process for the Separation of Acidic Gases from Fluids.
Image credit: Johnson, A. (1941)
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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Francesca Chiaradia
PhD Candidate in Economics
My research interests include innovation, law, and information economics.