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:
Nov. 05, 2019
Filed:
Jun. 29, 2017
Casale SA, Lugano, CH;
Ermanno Filippi, Castagnola, CH;
Marco Badano, Lugano-Besso, CH;
Geoffrey Frederick Skinner, Reading, GB;
Casale SA, Lugano-Besso, CH;
Abstract
A process for producing ammonia synthesis gas from the reforming of hydrocarbons with steam in a primary reformer () equipped with a plurality of externally heated catalytic tubes and then together with air in a secondary reformer () is characterized in that the reaction of said hydrocarbons with said steam in said primary reformer () is performed at an operating pressure of more than 35 bar in the catalytic tubes, in that air is added to said secondary reformer in excess over the nitrogen amount required for ammonia synthesis and in that the excess of nitrogen is removed downstream the secondary reformer preferably by cryogenic separation or by molecular sieves of the TAS or PSA type. This process allows to obtain high synthesis gas production capacities and lower investment and energy costs.