ALEXANDRIA, Va., July 16 -- United States Patent no. 12,358,803, issued on July 15, was assigned to KELLOGG BROWN & ROOT LLC (Houston).

"Integrated steam generator and superheater with process gas in ammonia synloop" was invented by Xueqian Lin (Houston) and Shiliang Zhan (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "An integrated steam generator/steam superheater apparatus is disclosed. The disclosed apparatus can be used in a process, such as an ammonia synthesis process, to cool an ammonia converter effluent process gas and to generate superheated steam. The integrated apparatus includes a steam superheater portion wherein hot process gas is used to generate superheated steam by heat transfer to...