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Isomerizations of n-pentane and n-hexane were carried out in the presence of hydrogen over Cs 2.5 H 0.5 PW 12 O 40 (Cs2.5) promoted with Pt by direct impregnation and mechanical mixing, and the results were compared with similarly Pt-promoted H-ZSM-5 and sulfated zirconia. The mechanical mixture of Pt/Al 2 O 3 and Cs2.5 showed the highest stationary...
Skeletal isomerization ofn-butane has been studied over bifunctional catalysts consisting of noble metals and an acidic cesium salt of12-tungstophosphoric acid, Cs2.5H0.5PW12O40. At 473 K in the presence of 0.05 atm of H2, 1 wt% Pt-Cs2.5H0.5PW12O40(1% in weight of Pt impregnated to Cs2.5H0.5PW12O40) showed activity and selectivity comparable to 1 wt% Pt-sulfated zirconia, while at 573 K and 0.5 atm...
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