The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2009
Filed:
Apr. 24, 2006
Yasuhiko Kojima, Narashino, JP;
Yasuhiko Kojima, Narashino, JP;
Toyo Engineering Corporation, Tokyo, JP;
Abstract
It is intended to enable an apparatus for synthesizing urea and a method for revamping the same to place a heavy condenser at a relatively low position and to circumvent problems associated with letting a process fluid flow within a tube in the condenser. The present invention provides an apparatus for synthesizing urea including: a synthesis reactor for reacting NHwith COto obtain a urea synthesis solution containing urea, unreacted NHand CO, and water; a stripper for stripping the urea synthesis solution with use of at least a part of raw material COto separate a gas containing the unreacted NHand CO; a vertical submerged condenser having a shell and tube structure for condensing the gas in an absorbing medium on the shell side while cooling the gas with a cooling medium passing through the tube side; and recycling means for recycling a liquid obtained from this condenser to the synthesis reactor, wherein this condenser is placed below the synthesis reactor. The present invention also provides a method for revamping an apparatus for synthesizing urea having a synthesis reactor, including installing the apparatus with the stripper, the vertical submerged condenser, and the recycling means, wherein this condenser is placed below the synthesis reactor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile