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

Claim 16:
17. The apparatus for urea production according to claim 13, wherein
the high-pressure decomposer is configured to heat the urea synthesis solution generated by the synthesis reactor with use of a medium-pressure steam as a heat source and obtain a medium-pressure steam condensate, and
the first heat exchange structure is configured to use, as the steam condensate having a temperature higher than 90° C.:
the medium-pressure steam condensate obtained from the high-pressure decomposer, or
a medium-pressure steam condensate obtained by cooling, through heat exchange, the medium-pressure steam condensate obtained from the high-pressure decomposer, or
a medium-low-pressure steam condensate obtained from a medium-low-pressure steam generating apparatus configured to, by reducing in pressure the medium-pressure steam condensate obtained from the high-pressure decomposer to a medium-low pressure, generate a medium-low-pressure steam and a medium-low-pressure steam condensate, or
a medium-low-pressure steam condensate obtained by cooling, through heat exchange, the medium-low-pressure steam condensate obtained from the medium-low-pressure steam generating apparatus.