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:
Aug. 07, 2018
Filed:
Nov. 10, 2015
Casale SA, Lugano, CH;
Raffaele Ostuni, Lugano, CH;
Ermanno Filippi, Castagnola, CH;
Geoffrey Frederick Skinner, Reading, GB;
Casale SA, Lugano, CH;
Abstract
An ammonia plant is disclosed, where ammonia purge gas (), is sent to a cryogenic recovery unit, said recovery unit comprising means of cooling () and a high-pressure phase separator () operating at loop pressure; inside said unit the purge gas () is cooled to a cryogenic temperature, and a partial liquefaction of methane and argon is achieved; the high-pressure phase separator separates the cooled stream into a gaseous stream and a bottom liquid; the gaseous stream is reheated in a passage of a heat exchanger; the unit is then capable to export a gaseous stream () containing nitrogen and hydrogen at loop pressure, that can be reintroduced at the suction side of the circulator () of the loop.