Przemysl Chemiczny, Vol.82, No.6, 406-409, 2003
Hydrogenation of rapeseed and soybean oils over new-generation copper catalysts - Part 1. Reaction kinetics
Polish (Pulawy) Cu catalysts INS-1011 (69.0), -1013 (47.9) and -1014 (39.9% Cu) and Sud-Chemie's G99B13 (Cu 39, Cr 31, Mn 4, Ba max. 0.5%; not advised for making foodstuffs) and T-14466 (Cu 43, Cr 32.5%) were used to hydrogenate bleached rapeseed (C(16:0)4.8, C(18:0)2, C(18:1)58.8, C(18:2)19.7, C(18:3)9.3, C(20:0)0.6, C(20:1)2, and C(22:1)1.6%; iodine no. 111.6; P, 0; S, 3.6 mg/kg) and bleached soybean (C(16:0)10.9, C(18:0)4.2, C(18:1)22.7, C(18:2)52.8, C(18:3)7.9, and others <0.5%; iodine no. 130.7; S, 0; P, 3.2 mg/kg) oils. Reaction was run at 190, 200 (preferably) or 210+/-2degreesC with 1-atm H-2 at 2700 rpm and catalyst concentration 0.5, 1 (preferably) or 1.5% Cu and was faster in soybean oil. Catalyst activities were: G99B13 approximate to INS-1011 > T-14466 > INS-1013 approximate to INS-1014. Partial or complete prereduction shortened induction time. Each INS had pores > 2 nm and, in INS-1011, 80% particles were < 10 mum. With INS-1011 and G99B13, 1% Cu, the activation energies were resp. 49.3 and 49.8 for rapeseed and 67.2 and 51 kJ/mol for soybean oil, high enough to show temperature to be the major factor.