Process for denitrogenating a liquified hydrocarbon mixture...

Details Process for denitrogenating a liquified hydrocarbon mixture... Process for denitrogenating a liquified hydrocarbon mixture...

F - Mech Eng,Light,Heat,Weapons

25

J

F25J 3/02 (2006.01) C10L 3/10 (2006.01) F25J 3/08 (2006.01)

Patent

CA 2099003

The charge of LNG (1) is refrigerated by primary expansion in a turbine (21), direct heat exchange (2) and secondary static expansion (3). The refrigerated charge (4) is fractionated in a denitrogenation column (5) in a gas phase (10) consisting of nitrogen and methane, discharged at the head of the column (5), and into a denitrogenated LNG flow (11) drawn off from the bottom of said column. A first fraction (6) and a second fraction (8) of LNG are taken from the column (5), pass through the heat exchanger (2) to refrigerate the charge (1), and are then reinjected into the column as first (7) and second (9) reboiling fractions. After recovery of its negative calories (13), the gas fraction (10) is compressed (15) to form a flow (20) of combustible gaz.

La charge de GNL (1) est réfrigérée par détente primaire dans une turbine (21), échange indirect de chaleur (2) et détente secondaire statique (3). La charge réfrigérée (4) est fractionnée dans une colonne (5) de déazotation en une phase gazeuse (10) formée d'azote et de méthane, évacuée en tête de la colonne (5), et en un courant (11) de GNL déazoté, soutiré en fond de cette colonne. Une première fraction (6) et une deuxiéme fraction (8) de GNL sont prélevées dans la colonne (5), passent dans l'échangeur (2) pour réfrigérer la charge (1), puis sont réinjectées dans la colonne comme première (7) et deuxième (9) fractions de rebouillage. La fraction gazeuse (10), après récupération de ses frigories (13), est comprimée (15) pour former un courant (20) de gaz combustible.

Affiliated with

Also associated with

Rating

Process for denitrogenating a liquified hydrocarbon mixture... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for denitrogenating a liquified hydrocarbon mixture..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for denitrogenating a liquified hydrocarbon mixture... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1850736