Sampling filter for chlorinated organic compounds

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 53/04 (2006.01) B01D 39/14 (2006.01) B01D 39/16 (2006.01) B01D 39/20 (2006.01)

Patent

CA 2380774

A sampling device (3) which can capture various chlorinated organic compounds in both forms of particles and gases contained in a fluid at the same time and further can easily extract the captured chlorinated organic compounds is equipped with a sampling filter (7) being disposed in a holder (6) having a discharging path (12a). The sampling filter (7) comprises fibers and an inorganic binder for binding the fibers with one another and has a structure allowing a fluid to pass through the filter. A sample gas from a flue (25) flows into the holder (6) through a sampling tube (2) and a conduit (8), and various chlorinated organic compounds such as PCDDs and coplanar PCBs in both forms of particles and gases are captured and sampled while the sample gas passes through the sampling filter (7). The sample gas from which the chlorinated organic compounds have been removed is discharged out from the discharging path (12a).

L'invention concerne un dispositif d'échantillonnage (3) permettant de capturer en même temps différents composés organiques chlorés contenus dans un fluide, à la fois sous forme particulaire et sous forme gazeuse. Pour extraire facilement lesdits composés organiques chlorés, le dispositif d'échantillonnage est équipé d'un filtre d'échantillonnage (7) disposé dans un porte-filtre (6) pourvu d'un chemin de décharge (12a). Ledit filtre d'échantillonnage (7) comprend des fibres et un liant organique destiné à lier lesdites fibres les unes avec les autres, et possède une structure permettant à un fluide de traverser ce filtre. Un gaz d'échantillonnage provenant d'un tube (25) s'écoule dans le porte-filtre (6) à travers un tube d'échantillonnage (2) et un conduit (8), et différents composés organiques chlorés tels que PCDD et PCB coplanaire à la fois sous forme particulaire et sous forme gazeuse sont capturés et échantillonnés pendant que le gaz d'échantillonnage traverse le filtre d'échantillonnage (7). Le gaz d'échantillonnage dans lequel les composés organiques chlorés sont supprimés est déchargé par l'intermédiaire du chemin de décharge (12a).

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