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以RuCl3 /PPh3 为催化剂体系研究了琥珀酸酐均相催化加氢反应动力学 .结果表明当催化剂浓度小于1.0× 10 -2 mol /L ,n(PPh3 ) /n(Ru) =7,SA浓度小于 2 .2 5mol /L和反应氢压PH2 小于 2 .2 5MPa时 ,反应速率方程为R =k1[Ru][SA]PH2 ;当反应氢压PH2 大于 2 .77MPa时 ,反应速率方程为R =k2 [Ru][SA].琥珀酸酐加氢生成γ -丁内酯的活化能Ea为 85 .2kJ/mol,活化焓△H≠ 为 81.8kJ /mol
The catalytic kinetics of homogeneous hydrogenation of succinic anhydride was studied using RuCl3 / PPh3 as catalyst system. The results show that when the catalyst concentration is less than 1.0 × 10-2 mol / L, n (PPh3) / n (Ru) = 7 and the SA concentration is less than The reaction rate equation is R = k1 [Ru] [SA] PH2 when the reaction pressure is lower than 2.5MPa and the reaction pressure is lower than 2.5MPa. When the reaction pressure is greater than 2.77MPa, the reaction rate equation is R = k2 [Ru] [SA]. The activation energy Ea of hydrogenation of succinic anhydride to γ - butyrolactone is 85.2 kJ / mol and the activation enthalpy △ H ≠ is 81.8 kJ / mol