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1. (WO2018202619) PROCESS AND PLANT FOR THE SYNTHESIS OF UREA

Pub. No.:    WO/2018/202619    International Application No.:    PCT/EP2018/061025
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Tue May 01 01:59:59 CEST 2018
IPC: C07C 273/04
C07C 273/16
Applicants: CASALE SA
Inventors: BERTINI, Paolo
FUMAGALLI, Matteo
GABBIADINI, Serena
Title: PROCESS AND PLANT FOR THE SYNTHESIS OF UREA
Abstract:
Plant for the synthesis of urea comprising:a synthesis section (101), wherein ammonia (1) and carbon dioxide (2) react to give an aqueous solution (3) containing urea and ammonium carbamate; at least one recovery section fed with said depressurized aqueous solution and in a two-phase state, said recovery section comprising a separator (104,108) which processes said two-phase solution; a pre-decomposer (105, 109), a decomposer (106, 110) and a condenser (107, 111), wherein the gaseous streams obtained in the separator and in the decomposer are condensed in said condenser of the recovery section.