Method to remove organic halogenated molecules from gaseous curr

Details Method to remove organic halogenated molecules from gaseous curr Method to remove organic halogenated molecules from gaseous curr

1996-04-05

1998-03-10

Spitzer, Robert

Gas separation: processes

Electric or electrostatic field

And nonelectrical separation of fluid mixture

95 69, 95 92, 95110, 95114, 95142, 95143, 95214, 95286, 96 18, 96 27, 96 53, 96 57, 96123, 96128, 96150, 55222, 55235, 552574, 552577, 55258, 55270, B01D 4516, B01D 4710, B01D 5100, B01D 5308

Patent

active

057256357

ABSTRACT:
Method to remove organic halogenated molecules from gaseous currents arriving as a residue of industrial working processes or not, the gaseous current being delivered into a reactor (16) containing a fluid bed consisting of at least one solid adsorbent element after having undergone at least one filtration followed by a cooling, the gaseous current cooperating with the solid particles with exchange by adsorption between the gaseous current and the solid particles, the reactor (16) achieving a time of contact between the gaseous current and the solid particles at least longer than 3 seconds, the gaseous current which enters the reactor (16) having a temperature lower than 80.degree. C., but advantageously between 30.degree. and 70.degree. C., the cooling of the gaseous current upstream of the reactor (16) being followed by a gas/water or gas/air heat exchanger (13). A plant to carry out the above method includes a reactor having a first input zone (17) and a second zone of exchange by adsorption between the gaseous current and a solid support in the form of fluid-bed particles kept in suspension, and a distribution plate (18) to introduce and distribute the gaseous current defining the second zone of the reactor (16), the reactor (16) having dimensions such as to achieve a passage time at least longer than 3 seconds, the concentration of solid support within the reactor (16) being between 0.1 and 0.5 kg per each cubic meter of gaseous substance.

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Muell Und Abfall, vol. 23, No. 4 1 Apr. 1991 pp. 229-235 Vicinus J. et al. "Abscheidung Von Dioxinen".

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