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:
Jun. 08, 2010
Filed:
Jul. 22, 2005
Domenico Romiti, Lugano, CH;
Paolo Sticchi, Massagno, CH;
Domenico Romiti, Lugano, CH;
Paolo Sticchi, Massagno, CH;
Urea Casale S.A., , CH;
Abstract
A process for urea production comprises a first process step in which ammonia () and carbon dioxide () are obtained, subjecting natural gas () to reforming treatments (), and a second step of urea () production from such ammonia () and from carbon dioxide, through a formation of a solution comprising urea and ammonium carbamate in a urea synthesis reactor () and a subsequent decomposition of the ammonium carbamate and. urea recovery, the process comprises the steps of:—treating combustion smokes () comprising carbon dioxide with an aqueous solution () comprising a part () of such ammonia (), obtaining an aqueous ammonium carbamate solution ();—supplying the solution () thus obtained to the second process step.