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Title:
METHOD FOR ENHANCING THE PRODUCTION CAPACITY OF A UREA PLANT
Document Type and Number:
Japanese Patent JP2014169300
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method for enhancing the capacity of a urea plant capable of enhancing the respective capacities of a high-pressure synthesis zone and a urea recovery zone alone.SOLUTION: In the provided method for enhancing the production capacity of urea overall, a melamine plant is additionally installed within an urea plant including: a compression zone of carbon dioxide and ammonia provided as raw ingredients; a high-pressure synthesis zone of urea; a urea recovery zone for forming a molten urea; and, optionally, a granulating zone. The additional melamine plant is installed so as to feed, entirely or partially into the melamine plant, the molten urea obtained from the urea recovery zone of the urea plant and to return, entirely or partially to the high-pressure synthesis zone and/or urea recovery zone of the urea plant, a residual gas from the melamine plant.

Inventors:
TJIOE TJAY TJIEN
MEESSEN JOZEF HUBERT
Application Number:
JP2014084868A
Publication Date:
September 18, 2014
Filing Date:
April 16, 2014
Export Citation:
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Assignee:
STAMICARBON BV
International Classes:
C07C273/04; C07C273/12; C07C275/00
Domestic Patent References:
JP2000516949A2000-12-19
JP2001509159A2001-07-10
JPS446273B1
JPS4618971B11971-05-27
JPS4519885B1
JPS4639708B11971-11-22
JPS4425583B1
Foreign References:
WO2000032566A12000-06-08
Attorney, Agent or Firm:
Ikeda Adult
Kazuhiro Yamaguchi
Yoshinori Shimizu
Noda Masakazu