The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 2016
Filed:
Aug. 03, 2010
Sergio Panza, Como, IT;
Pietro Moreo, Lugano, CH;
Elio Strepparola, Bedero Valcuvia, IT;
Casale SA, , CH;
Abstract
A process and a plant for producing ammonia, where an ASU () delivers an oxygen stream and a nitrogen stream; the oxygen stream () is fed to the secondary reformer of a front-end reforming section (); the nitrogen stream () is used to wash a purge gas or tail gas taken from the synthesis loop (), preferably in a cryogenic section; a methane-free and inert-free gas stream is recovered and recycled to the synthesis loop () or at the suction of the main syngas compressor, to recover the hydrogen contained therein. A corresponding method for increasing the capacity of an ammonia plant, by providing the ASU and feeding the oxygen stream to the secondary reformer and the nitrogen stream to a suitable purge gas recovery unit.