FIELD: gasses purification. SUBSTANCE: discharging gasses under temperature of 160 - 1100 C are contacting with catalyst, that has following composition, mass %: PdO 0.06 - 0.12; NiO 1.30 - 3.80; Cr2O3 1.50 - 4.30; Al2O3 - balance. Catalyst is produced using impregnation of carrier with water solution of Pd, Ni and Cr nitrates. Ratio of Pd(NO3)2;Ni(NO5)2:6H2O:Cr(NO3)3•H2O masses is equal to 1: (46 - 136) : (35.8 - 312). Al2O3 α-, γ- or θ- modifications, preliminary calcinated under temperature of 500 - 700 C, is used as carrier. Cr nitrate is produced during addition of HNO3 and Cr2O3 in impregnating solution. EFFECT: increased efficiency. 2 tbl
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Authors
Dates
1996-02-27—Published
1992-06-24—Filed