C - Chemistry – Metallurgy – 10 – K
Patent
C - Chemistry, Metallurgy
10
K
C10K 1/16 (2006.01) B01D 53/14 (2006.01)
Patent
CA 2691366
The invention relates to a process for removing aromatic hydrocarbons from coking gas. The coking gas is contacted with a scrubbing liquid in a scrubber and aromatic hydrocarbons are separated from the coking gas by absorption. The scrubbing liquid comprising aromatic hydrocarbons is subsequently heated and the aromatic hydrocarbons are stripped from the scrubbing liquid with steam. After cooling, the scrubbing liquid is finally fed back to the scrubber. According to the invention, biodiesel is used as scrubbing liquid.
L'invention concerne un procédé d'extraction d'hydrocarbures aromatiques de gaz de cokerie. Le gaz de cokerie est mis en contact avec un liquide de lavage dans un laveur de gaz et les hydrocarbures aromatiques sont séparés du gaz de cokerie par absorption. Ensuite, le liquide de lavage enrichi en hydrocarbures aromatiques est chauffé et les hydrocarbures aromatiques sont séparés du liquide de lavage par entraînement à la vapeur d'eau. Après refroidissement, le liquide de lavage est renvoyé dans le laveur de gaz. L'invention propose d'utiliser du biodiesel comme liquide de lavage.
Richter Diethmar
Thielert Holger
Wozny Guenter
Mcfadden Fincham
Uhde Gmbh
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