US Patent Issued to Rensselaer Polytechnic Institute on July 28 for "NaA zeolite membrane for recovery of ammonia" (New York, Pennsylvania Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,423, issued on July 28, was assigned to Rensselaer Polytechnic Institute (Troy, N.Y.).

"NaA zeolite membrane for recovery of ammonia" was invented by Miao Yu (Pittsford, N.Y.), Surya Padinjarekutt (Glen Mills, Pa.) and Huazheng Li (Troy, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Ammonia is made in a system that includes a conversion reactor for performing a Haber-Bosch process. Effluent streams from the conversion reactor, which include an ammonia component and excess hydrogen and nitrogen reactants, are fed to a membrane separator that includes NaA zeolite membranes disposed on one or more hollow porous supports. The NaA zeolite membranes...