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:
Mar. 07, 2006
Filed:
May. 03, 2005
Burton Brooks, Bellevue, WA (US);
Walter A. Jessup, Seattle, WA (US);
Brian W. Macarthur, Redmond, WA (US);
W. Brad Sheats, Federal Way, WA (US);
Burton Brooks, Bellevue, WA (US);
Walter A. Jessup, Seattle, WA (US);
Brian W. MacArthur, Redmond, WA (US);
W. Brad Sheats, Federal Way, WA (US);
The Chemithon Corporation, Seattle, WA (US);
Abstract
Processes and apparatus for quantitatively converting urea to ammonia on demand are disclosed. One process includes the steps of: receiving a demand rate signal for ammonia; feeding reactants including urea and water into a reactor to provide a reaction mixture; and controlling temperature and pressure in the reactor to produce a gaseous product stream including ammonia and carbon dioxide at substantially constant concentrations. Another process includes the steps of: feeding molten urea or solid urea to a reactor; feeding water (liquid or steam) to the reactor; and reacting the urea and water at elevated temperature and pressure to form a gaseous product stream including ammonia and carbon dioxide.