ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,471, issued on March 24.
"Method and apparatus to compress hydrogen gas with vapor control" was invented by Zhili Feng (Knoxville, Tenn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus for compressing gaseous hydrogen or other gases utilize a liquid compressor to achieve high pressure while controlling vapor content. Gaseous hydrogen from a source at an inlet pressure is compressed in a liquid compression chamber using an incompressible liquid, preferably water or a water-based liquid, to a predetermined pressure at which vapor in the compressed gas is below the required concentration level for applications. The compressed gas...