Patent ID: 11878957
Assignee: TOYO ENGINEERING CORPORATION
Field: Chemical engineering (Chemistry)
Classification: CPC C  B  Y | IPC C

Claim 12:
13. An apparatus for urea production, comprising:
a synthesis reactor comprising a urea synthesis solution generated from ammonia and carbon dioxide;
a high-pressure decomposer configured to, by heating the urea synthesis solution generated by the synthesis reactor, decompose ammonium carbamate and separate a gaseous mixture containing ammonia and carbon dioxide from the urea synthesis solution; and
a condenser configured to absorb and condense at least a part of the gaseous mixture obtained by the high-pressure decomposer in an absorption medium and generate a low-pressure steam from a steam condensate with use of heat generated during the condensation,
the apparatus for urea production further comprising:
a first heat exchange structure configured to heat-exchange a steam condensate having a temperature higher than 90° C. with another fluid to cool the steam condensate to 90° C. or less;
a second heat exchange structure configured to, by heat-exchanging the steam condensate obtained from the first heat exchange structure with a further fluid having a temperature lower than a temperature of the low-pressure steam, heat the steam condensate obtained from the first heat exchange structure; and
one or more lines for providing the steam condensate obtained from the second heat exchange structure to the condenser as the steam condensate for generating the low-pressure steam.