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:
Jul. 11, 2000
Filed:
Nov. 25, 1998
John P Whitney, Haskell, AR (US);
Ashok D Rao, Rancho Santa Margarita, CA (US);
Other;
Abstract
Ammonia is made from a carbon-containing heterogeneous feedstock by partially oxidizing the feedstock at low pressure to generate a synthesis gas containing CO; isothermally shift reacting the synthesis gas with steam to form H.sub.2 ; cryogenically removing portions of the CO.sub.2 and Ar from the shifted gas; purifying the H.sub.2 in a pressure swing adsorber; mixing the purified H.sub.2 with high purity N.sub.2 ; and converting the H.sub.2 and N.sub.2 into ammonia. The tail stream from the pressure swing adsorber can be recycled with the synthesis gas for control purposes and/ or used as boiler fuel. The reduced volume of purge gas purged from the ammonia synthesis loop allows ammonia contained in the purge gas stream to be recovered by cryogenic condensing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile