F - Mech Eng,Light,Heat,Weapons – 25 – J
Patent
F - Mech Eng,Light,Heat,Weapons
25
J
F25J 3/02 (2006.01) F25J 1/00 (2006.01) F25J 1/02 (2006.01) F25J 3/08 (2006.01)
Patent
CA 2294742
This invention relates generally to a separation process in which a multi- component feed stream (401) is introduced into a separation system (490) that operates under solids forming conditions for at least one of the feed stream components. The freezable component, although typically CO2, H2S or another acid gas, can be any component that has the potential for forming solids in the separation system (490). The multi-component feed stream is introduced into a separation system (490), at least a portion of which operates under solids forming conditions for at least one component of the feed stream. A overhead vapor stream (406) is withdrawn and compressed to a higher pressure stream (408). At least a portion of the compressed stream is cooled and then expanded to a lower pressure to further cool the compressed stream. At least a portion (409) of the expanded stream is returned to the separation system (490), thereby providing refrigeration to the separation system (490).
L'invention concerne globalement un procédé de séparation consistant à introduire un flux d'alimentation (401) à constituants multiples dans un système de séparation (490) qui induit la formation de solides pour au moins un des constituants en question. Le constituant gelable, généralement CO2, H2S ou un autre gaz acide, peut aussi être un constituant quelconque offrant la possibilité d'une formation de solides dans le système de séparation (490). Le flux susmentionné est introduit dans un système de séparation (490), dont au moins une section permet la formation de solides pour au moins un constituant du flux. Un flux de vapeur de la partie supérieure (406) est extrait et comprimé en flux de pression plus élevée (408). Au moins une partie du flux comprimé est soumise à un refroidissement puis à une expansion sous une pression inférieure, de manière à refroidir encore le flux comprimé. Au moins une partie (409) du flux ayant subi ladite expansion est renvoyée dans le système de séparation (490), auquel on fournit ainsi une source de réfrigération.
Thomas Eugene R.
Victory Donald J.
Borden Ladner Gervais Llp
Exxon Production Research Company
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