B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 53/14 (2006.01)
Patent
CA 2503404
A plant includes a vacuum stripper (118) that receives a lean hydrogen sulfide- containing physical solvent (32) and in which substantially hydrogen sulfide- free stripping gas (51,52) is provided by at least one of a high-pressure flash vessel (110) and a medium pressure flash vessel (112). Contemplated configurations advantageously extend the range of use for physical solvents to treat sour gas comprising carbon dioxide and hydrogen sulfide, and can be used to meet most pipeline specification of 4 ppm hydrogen sulfide.
L'invention concerne une installation équipée d'une colonne de stripping sous vide (118) pour recevoir un solvant physique (32) contenant de l'hydrogène sulfuré maigre, et dans laquelle un gaz de stripping (51, 52) sensiblement exempt d'hydrogène sulfuré est fourni par au moins un ballon de flashing (110) à haute pression et un ballon de flashing (112) à pression moyenne. Des configurations envisagées élargissent avantageusement le champ d'application pour les solvants physiques destinés à traiter des gaz acides contenant du dioxyde de carbone et de l'hydrogène sulfuré, et peuvent être utilisées pour répondre aux normes de la plupart des pipelines d'hydrogène sulfuré à 4 mg/l.
Fluor Corporation
Smart & Biggar
LandOfFree
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