US 7,476,374 B2
Catalytic destruction of halogenated hydrocarbons
Bert Weckhuysen, Houte (Netherlands); Robert Schoonheydt, Tervuren (Belgium); and Pieter Van Der Avert, Mortsel (Belgium)
Assigned to K.U.Leuven Research & Development, Leuven (Belgium)
Appl. No. 10/501,432
PCT Filed Jan. 14, 2003, PCT No. PCT/BE03/00005
§ 371(c)(1), (2), (4) Date Jul. 13, 2004,
PCT Pub. No. WO03/057318, PCT Pub. Date Jul. 17, 2003.
Claims priority of application No. 0200754.0 (GB), filed on Jan. 14, 2002; application No. 0204903.9 (GB), filed on Mar. 02, 2002; and application No. 0229145.8 (GB), filed on Dec. 16, 2002.
Prior Publication US 2005/0069478 A1, Mar. 31, 2005
Int. Cl. B01D 53/50 (2006.01); B01D 53/56 (2006.01); B01D 53/68 (2006.01); B01D 53/70 (2006.01); B01J 23/00 (2006.01); B01J 23/10 (2006.01)
U.S. Cl. 423—240R  [423/461; 502/302; 502/303; 502/304] 12 Claims
OG exemplary drawing
 
1. A catalytic process for the destruction of halogenated hydrocarbons in a gas stream, comprising the hydrolysis of the halogenated hydrocarbons by flowing said halogenated hydrocarbons over a lanthanide oxide catalyst, or a mixture of lanthanide oxides, wherein said lanthanide oxide catalyst has the general formula of Ln2O3, in the presence of steam at a temperature higher than 200° C. and lower than or about 350° C.