Effluent gas treatment

Details Effluent gas treatment Effluent gas treatment

B - Operations, Transporting

01

D

B01D 53/68 (2006.01) B01D 53/86 (2006.01) F01K 25/14 (2006.01) F23G 7/06 (2006.01) F23J 15/04 (2006.01) C07C 51/265 (2006.01) C07C 63/26 (2006.01)

Patent

CA 2222067

An effluent gas (10) derived from the production (R) of an aromatic dicarboxylic acid such as terephthalic acid is subjected to catalytic combustion (18) to effect complete conversion of any methyl bromide content to HBr and/or Br2 and the resulting gas stream is passed to an energy conversion device such as a gas turbine (24) under controlled conditions of pressure and temperature whereby condensation of HBr and/or Br2 is substantially prevented thereby allowing the energy conversion device to be fabricated from relatively inexpensive materials.

Un gaz d'effluent (10) issu de la production (R) d'un acide dicarboxylique aromatique tel que l'acide téréphtalique est soumis à une combustion catalytique (18) en vue d'obtenir une conversion complète de n'importe quelle teneur en bromure de méthyle en Hbr et/ou Br2. Le courant gazeux obtenu passe ensuite dans un dispositif de conversion de l'énergie tel qu'une turbine à gaz (24), dans des conditions régulées de pression et de température, ce qui évite pratiquement la condensation de Hbr et/ou Br2, le dispositif de conversion de l'énergie pouvant être ainsi fabriqué dans des matériaux relativement bon marché.

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