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:
Oct. 14, 2003
Filed:
Sep. 25, 2001
Applicant:
Inventors:
Richard O. Sheppard, Evergreen, CO (US);
Dennis L. Yakobson, Arvada, CO (US);
Assignee:
Rentech, Inc., Denver, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 2/700 ; C07C / ; C01C 1/04 ; F02C 1/310 ;
U.S. Cl.
CPC ...
C07C 2/700 ; C07C / ; C01C 1/04 ; F02C 1/310 ;
Abstract
A plant for manufacturing urea from carbonaceous materials, oxygen from an air separation unit and water, preferably steam, is made up of a syngas generator unit, an air separation unit, Fischer-Tropsch unit, a CO removal unit, a hydrogen removal unit, a methanator unit, an ammonia converter unit and a urea synthesizer unit. Each of Fischer-Tropsch liquids, ammonia, hydrogen and urea can be recoverable under proper economic conditions. Electrical power is recoverable by the addition of at least one of a steam turbine and a gas turbine which is/are coupled to an electrical generator.