Method for simultaneously modernization of ammonia producing equipment and urea producing equipment

Application Number: 00105319
Application Date: 2000.03.31
Publication Number: 1270957
Publication Date: 2000.10.25
Priority Information: 1999/3/31 EP 99201009.0
International: C07C273/04;C01C1/02
Applicant(s) Name: Wuria Casaler Co., Ltd.
Inventor(s) Name: G. Pageny;F. Zaldy
Patent Agency Code: 11038
Patent Agent: huang zexiong
Abstract A method for the simultaneous modernisation of a plant for ammonia synthesis and a plant for urea synthesis, provides – inter alia – the arrangement of a carbamate synthesis section and a carbamate decomposition section, in order to obtain a predetermined amount of carbamate in aqueous solution and of hydrogen and nitrogen in gaseous phase which are fed to the existing sections for urea synthesis, respectively ammonia synthesis. Thanks to this method of modernisation it is possible to remarkably increase the production capacity and at the same time to reduce the energy consumption of the urea and ammonia plants without being forced to replace or anyway overload the existing sections of decarbonation, methanation and compression, in general.