ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,294, issued on Sept. 30, was assigned to Air Products and Chemicals Inc. (Allentown, Pa.).
"Process and apparatus for cracking ammonia" was invented by Vincent White (Surrey, Great Britain) and Simon Craig Saloway (Surrey, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "Processes for cracking ammonia are improved by using heat generated in a compression unit that is used to compress PSA off gas being recycled to a PSA unit to pre-heat liquid ammonia prior to vaporization and cracking. The heat is transferred using a heat transfer fluid such as an aqueous solution comprising from about 50 wt. % to about 60 wt. % of a glycol, e.g., ethyl...