Title:
尿素製造方法および装置
Document Type and Number:
Japanese Patent JP7157684
Kind Code:
B2
Abstract:
Provided is a novel process and a novel apparatus for urea production capable of performing heat recovery from a relatively low-temperature fluid. A process for urea production includes a synthesis step, a high-pressure decomposition step and a condensation step and includes a) a step of heat-exchanging steam condensate whose temperature is higher than 90°C with another fluid to cool this steam condensate to 90°C or less, b) a step of, by heat-exchanging the steam condensate obtained from the step a with a further fluid having a temperature lower than a temperature of the low-pressure steam, heating the steam condensate obtained from the step a, and c) a step of supplying the steam condensate obtained from the step b to the condensation step as the steam condensate for generating the low-pressure steam. An apparatus for performing the process.
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Inventors:
Kei Sasaki
Application Number:
JP2019047277A
Publication Date:
October 20, 2022
Filing Date:
March 14, 2019
Export Citation:
Assignee:
Toyo Engineering Corporation
International Classes:
C07C273/04; C07C275/00
Domestic Patent References:
| JP60209555A | ||||
| JP10120643A | ||||
| JP2015519327A |
Foreign References:
| WO2017043391A1 |
Attorney, Agent or Firm:
Akio Miyazaki
Masaaki Ogata
Masaaki Ogata
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