Integrated ammonia-urea process

Chemistry of inorganic compounds – Nitrogen or compound thereof – Ammonia or ammonium hydroxide

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564 67, 564 69, C01C 104, C01C12600

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active

048698873

ABSTRACT:
An integrated ammonia urea process where the reaction of carbon dioxide and ammonia is in a urea reactor having a condensing section, a reaction section having more than one stage and a stripping section. The raw ammonia synthesis gas containing carbon dioxide is introduced into the stripping section of the urea reactor at a pressure selected within the range of 2000 and 3500 psig. The stripping effluent removed from the stripping section comprises the raw ammonia synthesis gas, carbon dioxide and ammonia which is introduced into a state of the reaction section.

REFERENCES:
patent: 273770 (1872-05-01), Otsuka et al.
patent: 2087980 (1937-07-01), Lawrence
patent: 3303215 (1967-02-01), Otsuka et al.
patent: 3310376 (1967-03-01), Cook et al.
patent: 3371115 (1968-02-01), Cook et al.
patent: 3372189 (1968-03-01), Otsuka et al.
patent: 3607939 (1971-09-01), Kaasenbrood et al.
patent: 3647872 (1972-03-01), Kaasenbrood et al.
patent: 3674847 (1972-07-01), Kaasenbrood et al.
patent: 4012443 (1977-03-01), Bonetti
patent: 4138434 (1979-02-01), Lagana et al.
patent: 4235816 (1980-11-01), Lagana et al.
patent: 4291006, Pagani et al.
patent: 4320103 (1982-03-01), Pagani
patent: 4613696 (1986-09-01), Zardi
"The Urea Stripping Process-The Tecnical Manufacture of Urea, with Carbon Dioxide Used Both as Reactant and as Stripping Gas", by P. J. C. Kassenbrood, 4th European Symposium, Chem. Reaction Engineers, Brussels, 09/06, pp. 1-8.
"Integrating Ammonia and Urea Production", by Douglas Keens, 01/08/82, I. Chem. E. Symposium Series No. 74, pp. 55-65.

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