B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 3/04 (2006.01) B01D 3/34 (2006.01) C10G 7/00 (2006.01) C10G 7/10 (2006.01)
Patent
CA 2344529
In an atmospheric pipestill stripping process where steam is utilized as the stripping gas to strip bottoms and side stream products, the improvement comprising utilizing ammonia or an ammonia and steam mixture as said stripping gas wherein when an ammonia and steam mixture is utilized the ratio of ammonia to steam is about 0.1:1 to about 100:1. In a refinery atmospheric pipestill stripping process utilizing a stripping gas, said process comprising utilizing a gas selected from the group consisting of ammonia and a mixture of ammonia and steam as said stripping gas wherein when an ammonia and steam mixture is utilized the ratio of ammonia to steam is about 0.1:1 to about 100:1.
L'invention concerne une amélioration d'un procédé de rectification à l'intérieur d'un four tubulaire atmosphérique dans lequel on utilise la vapeur en tant que gaz de rectification pour la rectification des fonds et des coupes latérales. Cette amélioration consiste à utiliser de l'ammoniac ou un mélange d'ammoniac et de vapeur à raison d'une proportion ammoniac : vapeur comprise entre 0,1 :1 et 100 :1 environ. L'invention concerne en outre un procédé de rectification se déroulant dans un four tubulaire atmosphérique et comprenant l'utilisation d'un gaz de rectification, ce procédé consistant à utiliser un gaz sélectionné dans un groupe comprenant l'ammoniac et un mélange ammoniac et de vapeur en tant que gaz de rectification, la proportion ammoniac :vapeur étant comprise entre 0,1 :1 et 100 :1 environ.
Sartori Guido
Savage David William
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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