Process for the extraction of energy from flue gases

Details Process for the extraction of energy from flue gases Process for the extraction of energy from flue gases

F - Mech Eng,Light,Heat,Weapons

28

D

F28D 21/00 (2006.01) C07D 251/56 (2006.01) F23L 15/04 (2006.01)

Patent

CA 2511188

The invention relates to a process for the extraction of energy from flue gases of a furnace which is operated with a fuel (202) and which is used in a process for the production of melamine, the process comprising a first heat exchange step (210) in which the flue gases are heat exchanged with a first process stream (212, 232), and in which the flue gases are heat exchanged with a second process stream (230, 232) in a second heat exchange step (228). The invention also relates to an apparatus for supplying heat in a process for the preparation of melamine, and to a process for optimizing an existing apparatus.

L'invention concerne un procédé d'extraction d'énergie à partir de gaz de carneau d'un four fonctionnant avec un combustible (202) et qui est utilisé dans un procédé de production de mélamine, ledit procédé comprenant une première étape d'échange de chaleur (210) dans laquelle les gaz de carneau sont soumis à un échange de chaleur avec un premier flux de traitement (212, 214), et dans laquelle les gaz de carneau sont soumis à un échange de chaleur avec un second flux de traitement (230, 232) dans une seconde étape d'échange de chaleur (228). L'invention concerne également un appareil permettant de fournir de la chaleur dans un procédé de préparation de mélamine, ainsi qu'un procédé d'optimisation d'un appareil existant.

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